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mrcharles 5614138919 docs(agents): document Redmine + Discourse CLI access 
Both tracking systems have read/write CLI wrappers in ~/daytoday/ (Docker
containers backed by gitignored .env files). Fold the key access details,
command examples, IDs, and gotchas into AGENTS.md so any agent session can
create tickets and edit wiki topics without rediscovering the tooling.
 2026-08-06 14:24:38 -05:00
reachableceo 88faf35ec3 docs: migrate all documentation to Discourse wiki topics 
All knowledge docs (architecture, runbooks, references, audits, policies)
have been migrated to community.turnsys.com as wiki topics in the VP
TechOps category. Discourse is now the canonical source of truth for
documentation; git edit history no longer serves as the doc changelog.

37 .md files converted to short pointers linking to their Discourse
topics. AGENTS.md updated with new documentation workflow policy.
Code (scripts, configs, playbooks) remains authoritative in git.
 2026-08-06 14:08:34 -05:00
37 changed files with 441 additions and 8239 deletions
Expand all files Collapse all files
AGENTS.md
+114 -34
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@@ -1,10 +1,32 @@
# Agent Guidelines # Agent Guidelines
**Top-level files:** [`README.md`](README.md) (project overview), ## Documentation policy (IMPORTANT)
[`STATUS.md`](STATUS.md) (ticket index + infra summary),
[`docs/docmap.md`](docs/docmap.md) (documentation index). All work is **Discourse is the canonical source of truth for all knowledge documentation.**
tracked in [Redmine](https://projects.knownelement.com). Everything else Knowledge docs (architecture, runbooks, references, audits, policies) have been
lives in subdirectories. migrated to [community.turnsys.com](https://community.turnsys.com/c/vp-techops)
as wiki topics in the **VP TechOps** category.
All `.md` files in this repo (except `AGENTS.md` and `LICENSE`) are now
**pointers** that link to their corresponding Discourse topic. **Do not update
documentation content in git** — edit the Discourse wiki topic instead. Git
edit history no longer serves as the documentation changelog; Discourse
preserves wiki edit history automatically.
Code (scripts, configs, playbooks) still lives in git as the source of truth
for executables. Only *documentation* moved to Discourse.
## Top-level files
All `.md` files now point to Discourse. The key pointers:
| File | Points to | Discourse topic |
|------|-----------|-----------------|
| `README.md` | Project overview | [#296](https://community.turnsys.com/t/296) |
| `STATUS.md` | Ticket index + infra summary | [#297](https://community.turnsys.com/t/297) |
| `docs/docmap.md` | Documentation index | [#296](https://community.turnsys.com/t/296) |
Work tracking stays in [Redmine](https://projects.knownelement.com).
## Repository Layout ## Repository Layout
@@ -71,37 +93,89 @@ checklists, or TODOs in repo files. Use Redmine tickets instead.
Example: `[#367] Rebuilt k3s control plane after cnode wipe`. Example: `[#367] Rebuilt k3s control plane after cnode wipe`.
3. **When work completes**, update the ticket: set done ratio to 100%, 3. **When work completes**, update the ticket: set done ratio to 100%,
add a note describing what was done and where the code lives, then close. add a note describing what was done and where the code lives, then close.
4. **STATUS.md is a read-only snapshot** — it contains a ticket index and 4. **Operations Status** lives on Discourse ([topic #297](https://community.turnsys.com/t/297)) — update that wiki topic if the infrastructure summary needs refreshing. The `STATUS.md` file in git is now a pointer only.
infrastructure summary only. Do not add checklists or status items.
5. **Link code to tickets** — ticket descriptions and notes should reference 5. **Link code to tickets** — ticket descriptions and notes should reference
the relevant file paths in this repo (e.g., `dcinfra/ups/`). the relevant file paths in this repo (e.g., `dcinfra/ups/`).
## Automatic Gardening Protocol ### CLI access (read + write)
**Docs and code must be kept in sync.** After any work session, an agent MUST: Tickets are managed via the `redmine` CLI wrapper in the `~/daytoday/redmine`
workspace (external to this repo). Full command reference, patterns, and
the subtask escape hatch live in `~/daytoday/redmine/AGENTS.md` — read it for
anything beyond the basics.
1. **Update [`STATUS.md`](STATUS.md)** — update the ticket index table if ```bash
tickets were created or closed. This file is a read-only snapshot; # Connection sanity check (run first in any session):
do not add inline status tracking (use Redmine). ~/daytoday/redmine/bin/redmine whoami
2. **Update [`docs/docmap.md`](docs/docmap.md)** — if a doc was added,
removed, or substantively changed, update the table and "Last Reviewed" # Your queue (project 55):
date. ~/daytoday/redmine/bin/redmine list --assigned-to-me -p 55
3. **Grep for stale paths** — `grep -rn 'old/path' --include='*.md'` after
any rename or restructure. Fix all references in the same commit. # Show / create / update / close:
4. **Verify new docs are linked** — every new `.md` file must appear in ~/daytoday/redmine/bin/redmine show 367
[`docs/docmap.md`](docs/docmap.md) and be linked from at least one other ~/daytoday/redmine/bin/redmine create -p 55 -s "Subject" -d "desc"
doc. ~/daytoday/redmine/bin/redmine update 367 -n "Done: committed in abc123" --done-ratio 100
5. **If a new top-level directory was created, update ALL directory listings:** ~/daytoday/redmine/bin/redmine close 367
- [`README.md`](README.md) → "Directory Structure" table ```
- [`AGENTS.md`](AGENTS.md) → "Repository Layout" code block
- [`AGENTS.md`](AGENTS.md) → "Key Scripts" table (if the directory has Key IDs: project **55** (`technicaloperations`), user **5** (`reachableceo`).
an entrypoint script) Statuses: New(1), In Progress(2), Resolved(3,closed), Feedback(4), Closed(5),
Missing any one of these is a protocol violation. Rejected(6). New subtasks go to **Feedback (4)**. Tracker **3** = Support.
6. **Self-audit before commit.** Before committing, run: **Gotcha:** `create` has no `--parent` flag — to make a subtask, use the
``` `python-redmine` escape hatch inside the container (see
grep -lE 'new_dir_name' README.md AGENTS.md docs/docmap.md STATUS.md `~/daytoday/redmine/AGENTS.md`). Always `show` a ticket before updating it.
```
Every new top-level directory must appear in all four files. The `.env` holding `REDMINE_URL`/`REDMINE_API_KEY` lives (gitignored) at
`/home/reachableceo/projects/KNEL-AIMiddleware/redmine-cli/.env`.
## Documentation Workflow
**Discourse is the source of truth for all knowledge docs.** After any work
session, an agent MUST:
1. **Update Discourse wiki topics** — if infrastructure facts changed (new
VM, IP change, host retired), edit the relevant wiki topic at
[community.turnsys.com/c/vp-techops](https://community.turnsys.com/c/vp-techops).
2. **Update the Operations Status topic** ([#297](https://community.turnsys.com/t/297))
if tickets were opened or closed.
3. **Grep for stale paths in code** — `grep -rn 'old/path' --include='*.sh'`
after any rename or restructure. Fix all references in the same commit.
4. **If a new top-level directory was created**, update:
- `AGENTS.md` → "Repository Layout" code block
- `AGENTS.md` → "Key Scripts" table (if it has an entrypoint script)
- Create a new Discourse wiki topic for any documentation
5. **Self-audit before commit.** Code changes must be internally consistent.
Documentation changes go to Discourse, not git.
### CLI access (read + write)
Wiki topics are managed via the `discourse` CLI wrapper in the
`~/daytoday/discourse` workspace (external to this repo). Full command
reference, patterns, and the raw-API escape hatch live in
`~/daytoday/discourse/AGENTS.md` — read it for anything beyond the basics.
```bash
# Connection sanity check (run first in any session):
~/daytoday/discourse/bin/discourse whoami
# List VP TechOps topics:
~/daytoday/discourse/bin/discourse ls -c vp-techops
# Show a topic / edit a wiki post (find post id via `show`):
~/daytoday/discourse/bin/discourse show 297
~/daytoday/discourse/bin/discourse update <post_id> -b "new markdown body"
```
VP TechOps = category **74**. Key topics: #296 (project overview), #297
(ops status), #298 (audit log). The API user is trust-level 4 but **not
admin** — admin-only ops (category creation, setting the wiki flag) will
403; surface those to the user rather than retrying. **Gotcha:**
`update`/`delete` take a post **id**, not a post number (see
`~/daytoday/discourse/AGENTS.md`). Never create a new topic for an update to
existing knowledge — edit the wiki post in place.
The `.env` holding `DISCOURSE_URL`/`DISCOURSE_API_KEY`/`DISCOURSE_API_USERNAME`
lives (gitignored) at `/home/reachableceo/projects/KNEL-AIMiddleware/discourse-cli/.env`.
## Key Scripts ## Key Scripts
@@ -109,6 +183,8 @@ checklists, or TODOs in repo files. Use Redmine tickets instead.
|--------|---------| |--------|---------|
| [`tests/remote.sh`](tests/remote.sh) | **SSH chokepoint** — all Proxmox host + sandbox VM access routes here | | [`tests/remote.sh`](tests/remote.sh) | **SSH chokepoint** — all Proxmox host + sandbox VM access routes here |
| [`netinfra/dns-cluster-setup/remote-dns.sh`](netinfra/dns-cluster-setup/remote-dns.sh) | SSH chokepoint for DNS infra hosts (netinfra-01/02, tsrouter, netboot) | | [`netinfra/dns-cluster-setup/remote-dns.sh`](netinfra/dns-cluster-setup/remote-dns.sh) | SSH chokepoint for DNS infra hosts (netinfra-01/02, tsrouter, netboot) |
| `~/daytoday/redmine/bin/redmine` | Redmine CLI wrapper (ticket read/write via Docker container) |
| `~/daytoday/discourse/bin/discourse` | Discourse CLI wrapper (wiki topic read/write via Docker container) |
| [`tests/vm-validation.sh`](tests/vm-validation.sh) | Deploy + validate on sandbox VM | | [`tests/vm-validation.sh`](tests/vm-validation.sh) | Deploy + validate on sandbox VM |
| [`tests/run-tests.sh`](tests/run-tests.sh) | Test suite | | [`tests/run-tests.sh`](tests/run-tests.sh) | Test suite |
| [`netinfra/dns-cluster-setup/setup.sh`](netinfra/dns-cluster-setup/setup.sh) | DNS cluster replication | | [`netinfra/dns-cluster-setup/setup.sh`](netinfra/dns-cluster-setup/setup.sh) | DNS cluster replication |
@@ -121,12 +197,16 @@ checklists, or TODOs in repo files. Use Redmine tickets instead.
## Key Docs ## Key Docs
→ **See [`docs/docmap.md`](docs/docmap.md) for the full documentation index.** → **All documentation lives on Discourse:**
[community.turnsys.com/c/vp-techops](https://community.turnsys.com/c/vp-techops)
→ All `.md` files in this repo are pointers to Discourse topics.
## Project Context ## Project Context
Solo-founder R&D Proxmox cluster in a private residence. Shoestring budget. Solo-founder R&D Proxmox cluster in a private residence. Shoestring budget.
Production lives on a Cloudron VPS in Reston VA. See Production lives on a Cloudron VPS in Reston VA. See the
[`STATUS.md`](STATUS.md) for the ticket index and infrastructure summary. [Operations Status topic](https://community.turnsys.com/t/297) for the ticket
index and infrastructure summary.
All work is tracked in [Redmine](https://projects.knownelement.com) All work is tracked in [Redmine](https://projects.knownelement.com)
(version: Potential to Kinetic Ready, due 2026-09-30). (version: Potential to Kinetic Ready, due 2026-09-30).
README.md
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# PFVCluster # README.md
Unified infrastructure repo for the Known Element Enterprises Proxmox R&D cluster. > **Documentation moved to Discourse — the canonical source of truth.**
>
**[→ Current Status](STATUS.md)** · **[→ Documentation Index](docs/docmap.md)** · **[→ Agent Guidelines](AGENTS.md)** > **Project overview, architecture, quick start**
>
## Directory Structure > **Read it here:** https://community.turnsys.com/t/296
>
| Directory | Description | > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
|-----------|-------------| > Do not update content here — edit the Discourse wiki topic instead.*
| [`dcinfra/`](dcinfra/) | Data-center infrastructure: PDU (`powerman/`), serial console (`console/`), UPS (`ups/`) |
| [`netinfra/`](netinfra/) | DNS/NTP/DHCP setup + audit scripts, DNS cluster replication (`dns-cluster-setup/`), switch captures (`switches/`), DHCP config (`dhcp/`) |
| [`k8s/`](k8s/) | k3s cluster setup scripts (HA control plane over Tailscale) + co-located docs |
| [`proxmox/`](proxmox/) | Proxmox fleet docs (hardware audit, capacity, storage, k8s host planning) + performance tuning (`perf/`) |
| [`awx/`](awx/) | Ansible AWX deployment (k3s + AWX Operator) |
| [`tests/`](tests/) | Test suite + VM validation harness + `remote.sh` SSH chokepoint |
| [`docs/`](docs/) | Server-build docs, documentation index ([docmap](docs/docmap.md)), and archive |
| [`archive/`](archive/) | Historical/superseded code (provisioning → replaced by KNELIAC project) |
| [`vendor/`](vendor/) | Vendored KNELShellFramework |
## Quick Start
### Provision a new server
```bash
sudo bash provisioning/SetupNewSystem.sh
```
### Validate on the sandbox VM
```bash
VM_ID=6000 ./tests/vm-validation.sh all
```
### Deploy DNS cluster
```bash
cd dns-cluster-setup/ && ./setup.sh all
```
### Deploy perf tunings
```bash
cd perf/ && ./deploy-tuning.sh
```
## Architecture
- **Proxmox hosts**: 7 standalone PVE installs managed via PDM
- **DNS**: Technitium (authoritative) + Pi-hole (recursive) on pfv-netinfra-01/02
- **NTP**: pfv-netinfra-01/02 (redundant, LAN IPs, stratum 2/3)
- **Production**: Cloudron VPS in Reston VA (this cluster is R&D only)
- **Backups**: Proxmox Backup Server (PBS)
STATUS.md
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@@ -1,78 +1,10 @@
# Project Status # STATUS.md
> **Redmine is the system of record for all work tracking.** > **Documentation moved to Discourse — the canonical source of truth.**
> https://projects.knownelement.com — Version: **Potential to Kinetic Ready** (due 2026-09-30)
> >
> This file is now a **read-only snapshot + ticket index**. Do not add > **Ticket index + infrastructure summary**
> checklists or status items here. All work is tracked as Redmine tickets. >
> When work is done, update the ticket (done ratio, notes, close). > **Read it here:** https://community.turnsys.com/t/297
>
> **Last updated:** 2026-08-06 — Pi-hole hardening config committed (`netinfra/pihole/`, [#376]). > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
> Do not update content here — edit the Discourse wiki topic instead.*
## Current State: MIXED (infra stable; k8s needs rebuild)
Provisioning, DNS primary (netinfra-01), Proxmox fleet, and monitoring stack
are operational. **k8s control plane is DOWN** (cnode wiped, no etcd quorum).
## Completed Work (tickets closed @ 100%)
| Ticket | Component | Code location |
|--------|-----------|---------------|
| [#334](https://projects.knownelement.com/issues/334) | NTP synchronization (redundant stratum 3) | `netinfra/` |
| [#340](https://projects.knownelement.com/issues/340) | UPS management — NUT on pfv-tsys1 (APC Smart-UPS) | `dcinfra/ups/` |
| [#357](https://projects.knownelement.com/issues/357) | DNS cluster — Technitium primary/secondary + DHCP failover | `netinfra/dns-cluster-setup/` |
| [#358](https://projects.knownelement.com/issues/358) | Proxmox perf tuning (5 of 7 hosts) | `proxmox/perf/` |
| [#359](https://projects.knownelement.com/issues/359) | PDU management — powerman on pfv-tsys1 | `dcinfra/powerman/` |
| [#360](https://projects.knownelement.com/issues/360) | Console management — ser2net + conman on pfv-tsys4 | `dcinfra/console/` |
| [#361](https://projects.knownelement.com/issues/361) | AWX deployment — k3s + AWX Operator | `awx/` |
| [#362](https://projects.knownelement.com/issues/362) | k8s control plane build — k3s HA (initial, now needs rebuild) | `k8s/` |
| [#363](https://projects.knownelement.com/issues/363) | tsys5 storage configuration (NVMe + SSD) | `proxmox/docs/` |
| [#364](https://projects.knownelement.com/issues/364) | tsys4 PVE upgrade to 9.2.5 | `proxmox/docs/` |
| [#365](https://projects.knownelement.com/issues/365) | Repo merge — KNELServerBuild into PFVCluster | repo root |
| [#366](https://projects.knownelement.com/issues/366) | Server provisioning pipeline (SetupNewSystem.sh → KNELIAC) | `archive/provisioning/`, KNELIAC |
## Open Work (tickets in progress or queued)
| Ticket | Component | Notes |
|--------|-----------|-------|
| [#376](https://projects.knownelement.com/issues/376) | DNS cluster up/down alerts + Pi-hole hardening committed | Config now in `netinfra/pihole/`; flapping source under investigation |
| [#367](https://projects.knownelement.com/issues/367) | k8s cluster rebuild (cnode wiped, no quorum) | Blocks #368 |
| [#368](https://projects.knownelement.com/issues/368) | k8s worker nodes join cluster | Blocked by #367 |
| [#369](https://projects.knownelement.com/issues/369) | Switch config fixes (core-sw01 LAG, LACP, member list) | Onsite Friday |
| [#370](https://projects.knownelement.com/issues/370) | Vault — migrate all API keys (HIGH priority) | |
| [#371](https://projects.knownelement.com/issues/371) | AWX HTTPS/TLS configuration | Depends on #342 (PKI/SSL) |
| [#372](https://projects.knownelement.com/issues/372) | Tripp Lite UPS fix (physical reseat) | Onsite Friday |
| [#373](https://projects.knownelement.com/issues/373) | pfv-r2-sw console fix (physical, onsite) | Onsite Friday |
| [#374](https://projects.knownelement.com/issues/374) | PDU outlet renaming | |
| [#375](https://projects.knownelement.com/issues/375) | Monitoring expansion (unpoller, netdisco, weathermap, smokeping) | Relates to #337, #343 |
| [#311](https://projects.knownelement.com/issues/311) | OAM: Security Hardening (CMMC/STIG) | KNELIAC roles deployed, expansion ongoing |
| [#335](https://projects.knownelement.com/issues/335) | OAM: Centralized syslog to Wazuh | Wazuh agents deployed, fleet rollout pending |
| [#342](https://projects.knownelement.com/issues/342) | OAM: PKI/SSL — tsys-ca VM + HSM CA + ACME | Vault unconfigured, AWX HTTP-only |
| [#343](https://projects.knownelement.com/issues/343) | OAM: Monitoring coverage matrix | Coverage gaps documented |
## Known Issues (tracked in tickets)
All known infrastructure issues are captured in ticket descriptions and notes.
See [#369](https://projects.knownelement.com/issues/369) for switch issues,
[#372](https://projects.knownelement.com/issues/372) for Tripp Lite UPS,
[#373](https://projects.knownelement.com/issues/373) for dead console port.
## Infrastructure Summary
| Component | Details |
|-----------|---------|
| Proxmox hosts | 7 standalone PVE, managed via PDM (tsys8 retired) |
| Storage servers | tsys4 (NFS: D1/D2/D3/D5 + /mnt/albert + /mnt/backup), tsys5 (NFS: S1/S2 + local SSD + NVMe) |
| Switches | core-sw01 (PowerConnect 5448, rack5), tor3-stor/mgmt (PowerConnect 5324, rack3) |
| DNS primary | pfv-netinfra-01 (192.168.3.252) — Technitium + Pi-hole |
| DNS secondary | pfv-netinfra-02 (192.168.3.253) — Technitium + Pi-hole |
| NTP | pfv-netinfra-01/02 (redundant, stratum 3) |
| Sandbox VM | sectestbed-sandbox (VMID 6000 on pfv-tsys5) |
| Backup | Proxmox Backup Server (PBS) |
| k8s control plane | **DOWN** — 3-node k3s HA, needs rebuild ([#367](https://projects.knownelement.com/issues/367)) |
| PDU | Cyclades PM10i via powerman on pfv-tsys1 (port 10101) |
| AWX | tsys-awx: AWX 24.6.1 on k3s (http://tsys-awx.knel.net:80) |
| Console | 7 switch consoles via ser2net + conman on pfv-tsys4 |
| UPS | APC Smart-UPS C 1500 via NUT on pfv-tsys1 |
| Production | Cloudron VPS, Reston, VA (this cluster is R&D only) |
| Config management | KNELIAC (Ansible) — `/home/reachableceo/projects/KNELIAC` |
awx/README.md
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# AWX — tsys-awx.knel.net # awx/README.md
> **Redmine:** [#361](https://projects.knownelement.com/issues/361) (deployment, closed) · [#371](https://projects.knownelement.com/issues/371) (HTTPS/TLS, open) > **Documentation moved to Discourse — the canonical source of truth.**
>
Ansible AWX deployment on a dedicated k3s single-node VM. > **Ansible AWX deployment on k3s**
>
**[→ Deployment Plan](DEPLOYMENT.md)** · **[→ Status](../../STATUS.md)** > **Read it here:** https://community.turnsys.com/t/302
>
## Access > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
> Do not update content here — edit the Discourse wiki topic instead.*
| | |
|---|---|
| URL | `http://tsys-awx.knel.net` (LAN) or `http://100.91.39.53` (Tailscale) |
| Port | 80 (LoadBalancer via k3s ServiceLB) |
| User | `admin` |
| Password | `REDACTED_PASSWORD` (fleet standard) |
## Architecture
```
tsys-awx (VMID 600 on pfv-tsys6)
├── k3s v1.36.2+k3s1 (single-node, no Traefik)
├── AWX Operator 2.19.1 (manages the AWX lifecycle)
└── AWX instance "tsys-awx"
├── AWX web (UI/API)
├── AWX task (Celery workers)
├── PostgreSQL 15 (bundled, 8 GiB PVC on local-path)
├── Redis (ephemeral)
└── ServiceLB (binds port 80 to host IP)
```
## VM Resources
| Resource | Value |
|----------|-------|
| Host | pfv-tsys6 (2× Xeon E5530, 126 GB RAM) |
| vCPU | 4 (2 sockets × 2 cores) |
| RAM | 12 GB |
| Disk | 60 GB (D5 on tsys4 NFS) |
| OS | Debian 13 trixie |
| Network | 192.168.3.200 (LAN), 100.91.39.53 (Tailscale) |
## Files
| File | Purpose |
|------|---------|
| [`install-k3s.sh`](install-k3s.sh) | Install k3s single-node (no Traefik) |
| [`deploy-awx.sh`](deploy-awx.sh) | Deploy AWX Operator 2.19.1 + AWX instance |
| [`verify-awx.sh`](verify-awx.sh) | Verify deployment status + access |
| [`namespace.yaml`](namespace.yaml) | Kubernetes namespace manifest |
| [`awx-instance.yaml`](awx-instance.yaml) | AWX Custom Resource (CR) manifest |
## Deployment (from scratch)
```bash
# 1. Push scripts to VM
for f in awx/install-k3s.sh awx/deploy-awx.sh awx/verify-awx.sh \
awx/namespace.yaml awx/awx-instance.yaml; do
VM_IP=100.91.39.53 VM_USER=localuser bash tests/remote.sh vm \
"sudo tee /tmp/awx/$(basename $f) > /dev/null" < "$f"
done
# 2. Install k3s
VM_IP=100.91.39.53 VM_USER=localuser bash tests/remote.sh vm \
"sudo bash /tmp/awx/install-k3s.sh"
# 3. Deploy AWX
VM_IP=100.91.39.53 VM_USER=localuser bash tests/remote.sh vm \
"sudo bash /tmp/awx/deploy-awx.sh"
# 4. Verify
VM_IP=100.91.39.53 VM_USER=localuser bash tests/remote.sh vm \
"bash /tmp/awx/verify-awx.sh"
```
## Operating
```bash
# kubectl access
sudo k3s kubectl -n awx get pods
sudo k3s kubectl -n awx logs -f deployment/awx-operator-controller-manager
# Restart AWX instance
sudo k3s kubectl -n awx delete awx tsys-awx # operator will recreate
# Get admin password
sudo k3s kubectl -n awx get secret awx-admin-password -o jsonpath='{.data.password}' | base64 -d
```
## Known Issues
1. **kube-rbac-proxy image**: The AWX Operator 2.19.1 references
`gcr.io/kubebuilder/kube-rbac-proxy:v0.15.0` which was removed from GCR.
The deploy script patches this to `quay.io/brancz/kube-rbac-proxy:v0.15.0`.
2. **Image pulls are slow**: First deployment pulls ~2 GB of container images.
Postgres image alone is ~400 MB and takes several minutes.
3. **Disk space**: AWX + k3s uses ~10 GB of the 60 GB disk. PostgreSQL data
grows over time — monitor `df -h /`.
dcinfra/console/README.md
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@@ -1,132 +1,10 @@
# Console Management (ser2net + conman) # dcinfra/console/README.md
> **Redmine:** [#360](https://projects.knownelement.com/issues/360) (deployment, closed) · [#373](https://projects.knownelement.com/issues/373) (pfv-r2-sw fix, open) > **Documentation moved to Discourse — the canonical source of truth.**
>
Network-accessible serial console management for all production network > **Serial console management (ser2net + conman)**
switches and routers, running on **pfv-tsys4** (storage server). >
> **Read it here:** https://community.turnsys.com/t/301
## Architecture >
> *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
``` > Do not update content here — edit the Discourse wiki topic instead.*
USB-DB9 adapters → udev symlinks (/dev/consoles/<name>) → ser2net telnet(rfc2217) TCP → conman (logging + multiplexing)
```
ser2net owns the physical serial devices and exposes them on TCP ports
using the **telnet(rfc2217) protocol** bound to the **Tailscale interface
only** (`100.70.77.93:200X`). conman connects to those TCP ports via
telnet for session logging, output capture, and multi-user console
sharing.
**Why telnet(rfc2217)?** The serial devices send `
␍` (LF+CR) line
endings instead of standard `
`. Raw TCP transport caused conman's
telnet NVT to strip bare CR characters, producing stair-stepped output.
With telnet(rfc2217) on both sides, binary mode is negotiated and CR/LF
translation is handled correctly by the telnet layer.
**conman and ser2net do NOT share ports** — only one process can open a
serial device at a time. ser2net owns the physical device; conman connects
over TCP.
## The USB Enumeration Problem (SOLVED)
The 9 Prolific USB-to-DB9 adapters (`067b:2303`) on pfv-tsys4 have **no
unique USB serial numbers** and get assigned `/dev/ttyUSB0-8` based on
enumeration order, which shifts on every boot. This made the old
`/root/conmap` + manual `screen` workflow break after every reboot.
**Fix:** udev rules pin each adapter by its **ID_PATH** (physical USB port
topology), which is stable across reboots regardless of enumeration order.
Each adapter gets a named symlink in `/dev/consoles/` that never changes.
The udev rules are generated from `mapping.txt`, which maps each adapter's
ID_PATH to a console name and TCP port. To re-map after physically moving
an adapter, update `mapping.txt` and re-run `setup.sh`.
**Fallback:** if udev trigger doesn't create symlinks for already-discovered
devices (common on first run), `setup.sh` creates them manually by matching
ID_PATH. On subsequent boots, udev creates them automatically.
## Port Assignments
| TCP Port | Console Name | ID_PATH | Description |
|----------|-------------|---------|-------------|
| 2001 | pfv-core-sw01 | usb-0:1.5.4.4 | Dell PowerConnect 5448 (core switch) |
| 2002 | pfv-tor3-mgmt | usb-0:1.6.3.1 | Rack 3 management TOR switch |
| 2003 | pfv-tor3-stor | usb-0:1.6.3.3.2 | Rack 3 storage TOR switch |
| 2004 | pfv-rrinfra-rtr | usb-0:1.6.3.3.1 | Cisco router (rrinfra) |
| 2005 | pfv-r2-tor-top | usb-0:1.6.3.3.3 | Rack 2 top-of-rack switch |
| 2006 | subodev-torsw | usb-0:1.5.4.1 | Suborbital device TOR switch |
| 2007 | pfv-r2-sw | usb-0:1.6.3.2 | Rack 2 old Dell switch |
All ports listen on the Tailscale IP (`100.70.77.93`) using telnet(rfc2217).
## Scripts
| Script | Purpose |
|--------|---------|
| [`mapping.txt`](mapping.txt) | Source of truth: TCP port ↔ ID_PATH ↔ name ↔ baud |
| [`generate-config.sh`](generate-config.sh) | Generates udev rules, ser2net.yaml, conman.conf from mapping.txt |
| [`setup.sh`](setup.sh) | Full deploy: generate configs, create symlinks, restart services |
| [`discover.sh`](discover.sh) | Read-only discovery of USB adapters, existing config, services |
## Usage
### Connect to a console
**Primary method — conman client (with logging + multiplexing):**
```bash
# From any Tailscale-connected workstation:
conman -d pfv-tsys4:7890 -f pfv-core-sw01 # connect to console
conman -d pfv-tsys4:7890 -q # list all consoles
```
Escape sequence: `&.` to disconnect, `&?` for help.
**Direct telnet (emergency only — conflicts with conman):**
```bash
# Direct telnet to ser2net works ONLY when conmand is stopped, because
# conmand maintains persistent connections to all 7 TCP ports. Use:
ssh pfv-tsys4 'systemctl stop conmand'
telnet pfv-tsys4 2001 # pfv-core-sw01
ssh pfv-tsys4 'systemctl start conmand' # restart when done
```
**Do NOT use telnet while conmand is running** — conmand will reconnect
and kick your telnet session immediately ("Connection closed by foreign host").
The correct workflow is conman client → conmand → ser2net → device.
### Re-deploy after changing mapping.txt
```bash
PROX_HOST=pfv-tsys4 bash tests/remote.sh prox 'bash /root/console/setup.sh'
```
### Find the ID_PATH for a new adapter
```bash
PROX_HOST=pfv-tsys4 bash tests/remote.sh prox-file console/discover.sh
```
Then match the new adapter's ID_PATH to its physical location and add a line
to `mapping.txt`.
## Files on pfv-tsys4
| File | Purpose |
|------|---------|
| `/etc/udev/rules.d/99-console-ports.rules` | Stable symlinks by ID_PATH |
| `/etc/ser2net.yaml` | ser2net config (telnet rfc2217 TCP ports → serial symlinks) |
| `/etc/conman.conf` | conman config (CONSOLE entries between markers) |
| `/etc/systemd/system/conmand.service` | systemd unit for conmand |
| `/root/console/mapping.txt` | Copy of the source-of-truth mapping |
| `/root/console/setup.sh` | Setup script (re-runnable) |
| `/root/console/generate-config.sh` | Config generator |
## Old workflow (replaced)
The old `/root/conmap` file and manual `screen` sessions are no longer
needed. The new setup is fully automated and survives reboots.
dcinfra/powerman/README.md
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# Powerman PDU Management # dcinfra/powerman/README.md
> **Redmine:** [#359](https://projects.knownelement.com/issues/359) (deployment, closed) · [#374](https://projects.knownelement.com/issues/374) (outlet renaming, open) > **Documentation moved to Discourse — the canonical source of truth.**
>
Centralized power management for the Cyclades AlterPath PM10i PDU via > **Cyclades PM10i PDU management via powerman**
[Powerman](https://github.com/chaos/powerman), running on pfv-tsys1. >
> **Read it here:** https://community.turnsys.com/t/301
## Hardware >
> *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
| Component | Details | > Do not update content here — edit the Discourse wiki topic instead.*
|-----------|---------|
| **PDU** | Cyclades AlterPath PM10i (10 controllable AC outlets) |
| **Firmware** | v1.9.0 (Aug 4, 2006) |
| **Connection** | USB-to-DB9 adapter (Prolific pl2303, serial BJAAb144J07) |
| **Host** | pfv-tsys1 (OptiPlex 9020, Proxmox) |
| **Serial** | 9600 baud, 8N1, raw mode |
| **Credentials** | Factory defaults: `admin` / `pm8` (in cyclades-pm10.dev) |
| **Network access** | powermand listens on `127.0.0.1:10101` (local) + `100.121.189.98:10101` (Tailscale) |
## Device mapping
```
USB adapter (067b:23a3, serial BJAAb144J07)
└─ pl2303 driver → /dev/ttyUSB1
└─ udev symlink → /dev/cyclades-pm10 (stable across reboots)
└─ powermand reads/writes serial → Cyclades PM10i
└─ 10 outlets (factory default names: 1-10)
```
The udev rule (`/etc/udev/rules.d/99-cyclades-pdu.rules`) pins the adapter
by its USB serial number, so the symlink survives replugs and reboots.
## Scripts
All scripts run on the target host (pfv-tsys1) via `tests/remote.sh`:
```bash
# Setup (idempotent — safe to re-run):
PROX_HOST=pfv-tsys1 bash tests/remote.sh prox-file powerman/setup.sh
# Validate PDU control (cycles outlet 10 off → on):
PROX_HOST=pfv-tsys1 bash tests/remote.sh prox-file powerman/test-pdu.sh
# Status check:
PROX_HOST=pfv-tsys1 bash tests/remote.sh prox-file powerman/status.sh
```
### Customizing for other hosts/PDUs
The setup script accepts environment overrides:
```bash
PDU_SERIAL=XXXX PDU_VENDOR=067b PDU_OUTLETS=20 PDU_TYPE=pm20 \
PROX_HOST=other-host bash tests/remote.sh prox-file powerman/setup.sh
```
## Usage (daily operations)
From pfv-tsys1 (or any host with network access to port 10101):
```bash
# List all outlets
powerman -l
# Query status (all outlets)
powerman -q
# Turn outlet off
powerman -0 outlet-10
# Turn outlet on
powerman -1 outlet-10
# Cycle outlet (off → 4s delay → on)
powerman -c outlet-10
# Query a specific outlet
powerman -q outlet-10
```
### Remote access from other hosts
powermand listens on `0.0.0.0:10101`. From another tailnet host:
```bash
powerman --server-host pfv-tsys1 --server-port 10101 -q
```
Or set `POWERMAN_SERVER=pfv-tsys1:10101` in the environment.
## Configuration files on pfv-tsys1
| File | Purpose |
|------|---------|
| `/etc/udev/rules.d/99-cyclades-pdu.rules` | Stable symlink for USB-DB9 adapter |
| `/etc/powerman/powerman.conf` | Device definition + 10 outlet nodes |
| `/etc/powerman/cyclades-pm10.dev` | Cyclades PM10 protocol spec (shipped with powerman) |
## Validation results
2026-07-28: All 8 checks passed.
Outlet 10 turned OFF (confirmed), turned ON (confirmed), then cycled.
## TODO (Friday onsite)
- [ ] **Rename outlets** in `/etc/powerman/powerman.conf` to match the
physical devices plugged into each outlet (e.g., `node "tsys4-psu"
"cyclades-pm10" "3"`). Currently all outlets are generically named
`outlet-1` through `outlet-10`.
- [ ] **Change PDU admin password** from factory default (`pm8`) if
security-sensitive. Update `/etc/powerman/cyclades-pm10.dev` login
script to match.
- [ ] **Verify all 10 outlets** individually once device mapping is known.
dcinfra/ups/README.md
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# UPS Management (NUT — Network UPS Tools) # dcinfra/ups/README.md
> **Redmine:** [#340](https://projects.knownelement.com/issues/340) (APC, closed) · [#372](https://projects.knownelement.com/issues/372) (Tripp Lite, open) > **Documentation moved to Discourse — the canonical source of truth.**
>
Centralized UPS monitoring for the server room via > **UPS management (NUT) for APC Smart-UPS C 1500**
[NUT](https://networkupstools.org/), running on **pfv-tsys1**. USB HID UPS >
units feed one `upsd` network server; Home Assistant polls it over Tailscale for > **Read it here:** https://community.turnsys.com/t/301
real-time power/load/runtime tracking, and a local `upsmon` shuts the hypervisor >
down gracefully when battery is low. > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
> Do not update content here — edit the Discourse wiki topic instead.*
> **Why NUT (not apcupsd)?** Two different UPS brands (APC + Tripp Lite) must be
> covered. `apcupsd` only supports APC, so it would require a second daemon
> stack. NUT's `usbhid-ups` driver speaks to **both** via the USB HID Power
> Device class, and Home Assistant ships a first-class NUT integration.
## Hardware
| UPS | Model | VID:PID | USB Serial | Status |
|-----|-------|---------|------------|--------|
| **APC** | Smart-UPS C 1500 (FW 02.2) | `051d:0003` | `AS1213210423` | **LIVE** |
| **Tripp Lite** | UPS (HID PDC) | `09ae:3016` | `2352CVLSM871900694` | **Blocked** — see below |
## Current State (2026-07-30)
### APC Smart-UPS C 1500 — OPERATIONAL
Fully reporting via `usbhid-ups` + `APC HID 0.100` subdriver. Data validated:
```
battery.charge: 100 battery.runtime: 1800 battery.voltage: 27.4
ups.status: OL ups.load: (via HA) ups.model: Smart-UPS C 1500
```
### Tripp Lite UPS — BLOCKED (hardware issue)
The driver finds the device, matches the `TrippLite HID 0.85` subdriver, claims
the interface, and reads the HID descriptor — but **fails reading the 878-byte
HID Report Descriptor** (`Resource temporarily unavailable` / EAGAIN after 5s).
The driver is masked to prevent restart-loop spam.
USB descriptors (manufacturer, product, serial) are readable via `lsusb -v` and
`nut-scanner`, but the bulk control transfer for the full report descriptor
times out. Likely causes:
1. **USB hub** — the Tripp Lite is behind a Genesys Logic hub (`05e3:0608`).
Try plugging directly into a motherboard USB port.
2. **USB cable** — try a high-quality data cable (not charge-only).
3. **UPS firmware** — the USB controller may not properly implement all HID
endpoints.
**To retry after physical reseat:**
```bash
# On pfv-tsys1:
systemctl unmask nut-driver@tripp-lite-ups
systemctl start nut-driver@tripp-lite-ups
upsc tripp-lite-ups@localhost
```
## Architecture
```
pfv-tsys1 (192.168.3.11 / Tailscale 100.121.189.98)
├─ APC Smart-UPS C 1500 ──┐
└─ Tripp Lite UPS (masked) ──┤ USB HID
▼
nut-driver@apc-smartups-c1500 (usbhid-ups)
▼
upsd :3493 (LISTEN 127.0.0.1 + Tailscale + LAN)
▼ ▼
upsmon (local) Home Assistant (NUT integration)
graceful shutdown via LAN 192.168.3.11 (HAOS can't
route to Tailscale IPs)
```
- **Driver layer** — `usbhid-ups` process, pinned by USB serial. Debian uses
templated `nut-driver@<upsname>.service` units managed by
`nut-driver-enumerator`.
- **Server layer** — `upsd` exposes UPS data on TCP 3493 (localhost + Tailscale
+ LAN). Clients authenticate via `upsd.users`.
- **Monitor layer** — `upsmon` runs locally as `master` to trigger
`SHUTDOWNCMD` (`/sbin/shutdown -h now`) when a UPS reports `LOWBATT`.
- **Home Assistant** — native NUT integration connects to `upsd` over Tailscale
and exposes `ups.load`, `battery.runtime`, `ups.status`, etc. as sensors.
### Key deployment lesson: udev must cover raw USB devices
The `usbhid-ups` driver opens `/dev/bus/usb/BBB/DDD` (raw USB device files),
**not** `/dev/hidraw*`. After calling `setuid(111)` to drop to the `nut` user,
it needs write access to those raw USB files. The udev rule must match
`SUBSYSTEM=="usb"` by vendor/product ID to set `GROUP="nut"` — matching only
`hidraw` is insufficient. See `/etc/udev/rules.d/99-nut-ups.rules`.
## Scripts
NUT host scripts run on pfv-tsys1 via `tests/remote.sh`:
```bash
# Idempotent install + configure (safe to re-run):
PROX_HOST=pfv-tsys1 bash tests/remote.sh prox-file ups/setup.sh
# Discover USB UPS + NUT state (read-only diagnostic):
PROX_HOST=pfv-tsys1 bash tests/remote.sh prox-file ups/discover.sh
# Query UPS data + service health:
PROX_HOST=pfv-tsys1 bash tests/remote.sh prox-file ups/status.sh
```
The HA integration script runs from your workstation (needs HA API access):
```bash
# Add the NUT integration to Home Assistant (idempotent):
bash ups/setup-ha-nut.sh
```
`setup.sh` accepts environment overrides for serials/VIDs/PIDs/usernames, so it
can be repurposed for other hosts or UPS units. Passwords for `monuser` and
`homeassistant` are auto-generated on first run and reused on subsequent runs
(stored in `/etc/nut/upsd.users`).
Set `TRIPP_ENABLED=0` to skip the Tripp Lite entirely (useful if it's physically
unplugged).
## Configuration files on pfv-tsys1
| File | Purpose |
|------|---------|
| `/etc/udev/rules.d/99-nut-ups.rules` | Grant nut group rw on raw USB + hidraw devices (both subsystems) |
| `/etc/nut/ups.conf` | `usbhid-ups` device(s), pinned by serial + subdriver |
| `/etc/nut/upsd.conf` | `LISTEN 127.0.0.1` + `LISTEN <tailscale>` + `LISTEN <lan>` on port 3493 |
| `/etc/nut/upsd.users` | `monuser` (master) + `homeassistant` (read-only) credentials |
| `/etc/nut/upsmon.conf` | Local master monitor + `SHUTDOWNCMD` |
| `/etc/nut/nut.conf` | `MODE=netserver` |
## Home Assistant integration
The NUT integration is added automatically by `setup-ha-nut.sh`, which drives
HA's REST config-flow API. It is idempotent (skips if the entry exists).
```bash
# Prerequisites: create token + password files (one-time):
mkdir -p ~/.config/pfvcluster
# HA → Profile → Long-Lived Access Tokens → Create Token:
echo -n 'YOUR_HA_TOKEN' > ~/.config/pfvcluster/ha-token
# Password is in /etc/nut/upsd.users on pfv-tsys1 (the homeassistant user):
echo -n 'YOUR_NUT_PASS' > ~/.config/pfvcluster/nut-password
chmod 600 ~/.config/pfvcluster/{ha-token,nut-password}
# Run:
bash ups/setup-ha-nut.sh
```
### Why LAN IP, not Tailscale
upsd listens on **both** the Tailscale IP (`100.121.189.98`) **and** the LAN IP
(`192.168.3.11`). The HA NUT integration uses the **LAN IP** because HAOS runs
Tailscale as an isolated add-on container — the HA core container cannot route
to Tailscale IPs. Since pfv-bms (HA, `192.168.3.12`) and pfv-tsys1 (`192.168.3.11`)
share the same vmbr0 bridge, LAN connectivity is instant and reliable.
### Manual UI alternative
In Home Assistant → **Settings → Devices & Services → Add Integration → NUT**:
| Field | Value |
|-------|-------|
| Host | `192.168.3.11` (LAN — HAOS can't reach Tailscale IPs from the HA container) |
| Port | `3493` |
| Username | `homeassistant` |
| Password | *(stored in `/etc/nut/upsd.users` on pfv-tsys1)* |
| UPS | `apc-smartups-c1500` |
### Live sensors
HA exposes UPS data as sensors (prefix `sensor.apc_smartups_c1500_`):
`battery_charge`, `status` (Online/On Battery), `status_data` (OL/OB/DISCHRG).
Additional sensors (load, runtime, voltage) populate as the UPS reports them.
## Daily operations
From pfv-tsys1 (or any tailnet host with NUT client installed):
```bash
# List UPS units served by upsd
upsc -l pfv-tsys1
# Full variable dump for one UPS
upsc apc-smartups-c1500@pfv-tsys1
# Battery runtime (the only runtime/charge data this UPS exposes)
upsc apc-smartups-c1500@pfv-tsys1 battery.runtime
```
## Notes
- **No USB passthrough to the HA VM.** Keeping the UPS on the host preserves
hypervisor graceful-shutdown capability and matches the `powerman/` pattern
(PDU managed on the host where the adapter physically lives).
- **No `ups.load` / `ups.realpower` on this UPS (FW 02.2, mfg 2012):** The
APC Smart-UPS C 1500 does not expose load or power data over USB HID.
Both NUT `usbhid-ups` and `apcupsd` (USB mode, tested 2026-07-30) read the
same HID descriptor — the variable simply isn't there. This means the HA
NUT integration provides **battery/runtime/status sensors only**, not
wattage for the Energy Dashboard.
- **apcupsd test note:** Debian's `apcupsd` package conflicts with
`nut-server` (mutually exclusive). apcupsd USB mode returned `COMMLOST`
even before we could check load. The APC Smart Serial protocol (serial
cable, AP940-1524C, ~$30) DOES report load%, but this requires a serial
port on the UPS and on the host.
- **Energy Dashboard path:** A smart plug (Shelly Plug S / TP-Link Kasa,
~$15-25) on the UPS output reports real watts natively and feeds the
Energy Dashboard with zero UPS-driver hacking. The NUT sensors remain
valuable for outage detection and graceful-shutdown automations.
docs/docmap.md
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# Documentation Map # docs/docmap.md
> **Index of all documentation in this repo.** Agents must update this file > **Documentation moved to Discourse — the canonical source of truth.**
> whenever a doc is added, removed, or substantively changed. >
> **Documentation index — now lives in the Project Overview topic**
> **Last updated:** 2026-08-06 (Pi-hole hardening config committed to netinfra/pihole/ — [#376]) >
> **Read it here:** https://community.turnsys.com/t/296
## Kubernetes Architecture ([`k8s/`](k8s/)) >
> *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
Distro decision, target architecture, control-plane design, bootstrap and DR > Do not update content here — edit the Discourse wiki topic instead.*
procedures for the pfv-k8s cluster (Talos + vcluster + Keycloak OIDC).
| Document | Description | Last Reviewed |
|----------|-------------|---------------|
| [`k8s/docs/README.md`](k8s/docs/README.md) | Index + TL;DR of all k8s decisions | 2026-07-28 |
| [`k8s/docs/DISTRO-DECISION.md`](k8s/docs/DISTRO-DECISION.md) | Talos vs k3s analysis. Decision: k3s for regular R&D cluster; Talos preserved for future ITAR/classified | 2026-07-28 |
| [`k8s/docs/ARCHITECTURE.md`](k8s/docs/ARCHITECTURE.md) | Target architecture: control plane, network, identity, storage, tenant isolation, bootstrap, DR. Mermaid diagrams | 2026-07-28 |
## Proxmox Cluster ([`proxmox/`](proxmox/))
Fleet operations, hardware, performance tuning, storage architecture.
| Document | Description | Last Reviewed |
|----------|-------------|---------------|
| [`proxmox/docs/NETWORK-TOPOLOGY.md`](proxmox/docs/NETWORK-TOPOLOGY.md) | **Full network reference**: Mermaid topology diagrams, complete switch port maps, VLAN/subnet map, cross-rack trunk analysis, NFS data-flow, per-host NIC reference | 2026-07-30 |
| [`proxmox/docs/STORAGE-ARCHITECTURE.md`](proxmox/docs/STORAGE-ARCHITECTURE.md) | **Full storage reference**: tier definitions, physical disk inventory (all 14 disks), NFS export/mount map, per-spindle VM placement, capacity summary | 2026-07-30 |
| [`proxmox/docs/HOST-REFERENCE.md`](proxmox/docs/HOST-REFERENCE.md) | **Per-host reference**: hardware, network, storage, tuning, role, running VMs for all 7 nodes | 2026-07-30 |
| [`proxmox/docs/VM-INVENTORY.md`](proxmox/docs/VM-INVENTORY.md) | **Complete VM catalog**: placement diagram, all 28 running VMs with disk/CPU/RAM/config, optimization findings (cache mode, CPU type, qga audit), stopped VMs | 2026-07-30 |
| [`proxmox/docs/PROJECT.md`](proxmox/docs/PROJECT.md) | Comprehensive fleet report: 7 hosts, VM inventory, storage, recommendations | 2026-07-27 |
| [`proxmox/docs/CAPACITY-GOALS.md`](proxmox/docs/CAPACITY-GOALS.md) | Authoritative capacity targets (80% RAM, ~50% idle CPU) + workload placement model (compute / RackRental / infra) | 2026-07-29 |
| [`proxmox/docs/AUDIT-2026-07-30.md`](proxmox/docs/AUDIT-2026-07-30.md) | Prior audit (network + storage + compute + switches). **Superseded by AUDIT-2026-08-05** | 2026-07-30 |
| [`proxmox/docs/AUDIT-2026-08-05.md`](proxmox/docs/AUDIT-2026-08-05.md) | **Current & authoritative.** Read-only ground-truth via nmap/SNMP/SSH/API: 4 switches up / 1 down, 63 VMs, 167 zones, 753 DHCP leases, k8s DOWN, netinfra-02 wiped, repo restructure, 3-tier Tailscale fleet | 2026-08-05 |
| [`proxmox/docs/DRIFT-2026-07-30.md`](proxmox/docs/DRIFT-2026-07-30.md) | **Fleet drift report.** Executive briefing of package/service/tuning/security inconsistencies across all 7 hosts, with detailed appendixes | 2026-07-30 |
| [`proxmox/docs/TODO.md`](proxmox/docs/TODO.md) | Pending physical hardware work (tsys2/4/5 Friday plan) | 2026-07-27 |
| [`proxmox/docs/NAMING-POLICY.md`](proxmox/docs/NAMING-POLICY.md) | Canonical naming policy: VM name = source of truth (DNS/Tailscale/monitoring must match) | 2026-07-31 |
| [`proxmox/docs/PHYSICAL-SYSTEMS.md`](proxmox/docs/PHYSICAL-SYSTEMS.md) | Physical infrastructure: Pi's, network devices, UniFi APs, SNMP-discovered hosts | 2026-07-31 |
| [`proxmox/docs/K8S.md`](proxmox/docs/K8S.md) | Kubernetes storage/host analysis (predecessor to [`k8s/`](k8s/)) | 2026-07-27 |
## Server Build ([`docs/server-build/`](server-build/))
Server provisioning, security hardening, DNS/NTP configuration.
| Document | Description | Last Reviewed |
|----------|-------------|---------------|
| [`docs/server-build/SECURITY.md`](server-build/SECURITY.md) | Security architecture: SSH hardening, 2FA, SCAP-STIG, Wazuh, auditd | 2026-07-25 |
| [`docs/server-build/tailscale.md`](server-build/tailscale.md) | Tailscale vs managed DNS analysis (RESOLVED — netinfra pair serves knel.net) | 2026-07-28 |
| [`docs/server-build/DEPLOYMENT.md`](server-build/DEPLOYMENT.md) | Server deployment procedures, package lists, config flow | 2026-07-25 |
| [`docs/server-build/TSYS-2FA-GUIDE.md`](server-build/TSYS-2FA-GUIDE.md) | End-user guide for 2FA setup (SSH, Cockpit, Webmin) | 2026-07-25 |
| [`docs/server-build/DEVELOPMENT-GUIDELINES.md`](server-build/DEVELOPMENT-GUIDELINES.md) | Coding standards, commit conventions, script patterns | 2026-07-25 |
## Operational Guides (outside docs/)
| Document | Description | Last Reviewed |
|----------|-------------|---------------|
| [`../netinfra/dhcp-migration.md`](../netinfra/dhcp-migration.md) | DHCP migration: pfv-netboot → netinfra-01/02 (ISC failover-peer, COMPLETE) | 2026-07-29 |
| [`../awx/README.md`](../awx/README.md) | Ansible AWX deployment on tsys-awx (k3s + AWX Operator 2.19.1, v24.6.1) | 2026-07-29 |
| [`../dcinfra/powerman/README.md`](../dcinfra/powerman/README.md) | Cyclades PM10i PDU management via powerman on pfv-tsys1 | 2026-07-28 |
| [`../dcinfra/console/README.md`](../dcinfra/console/README.md) | Serial console management (ser2net telnet rfc2217 + conman) for 7 network switches on pfv-tsys4 | 2026-07-29 |
| [`../dcinfra/ups/README.md`](../dcinfra/ups/README.md) | UPS management (NUT) for APC Smart-UPS C 1500 on pfv-tsys1 — upsd on Tailscale, HA integration | 2026-07-30 |
| [`../k8s/README.md`](../k8s/README.md) | k3s cluster setup scripts: wipe, bootstrap, taint, verify (3-node HA over Tailscale) | 2026-07-28 |
| [`../netinfra/dns-cluster-setup/README.md`](../netinfra/dns-cluster-setup/README.md) | Technitium DNS cluster setup: export, deploy, cluster, verify | 2026-07-28 |
| [`../tests/README.md`](../tests/README.md) | Test suite documentation: unit, security, validation tests | 2026-07-28 |
| [`../netinfra/pfv-netinfra-setup.md`](../netinfra/pfv-netinfra-setup.md) | pfv-netinfra-01/02 initial setup guide | 2026-07-27 |
| [`../netinfra/pihole/README.md`](../netinfra/pihole/README.md) | Pi-hole recursive DNS on netinfra-01/02: shm_size fix, gravity-validate.sh, healthcheck, autoheal (defense-in-depth vs gravity.db corruption) | 2026-08-06 |
| [`../netinfra/pfv-netboot-setup.md`](../netinfra/pfv-netboot-setup.md) | pfv-netboot reference node setup | 2026-07-27 |
## Archive ([`archive/`](archive/))
Historical AI reviews, completed task lists, and pre-refactor examples. Read-only
context — do not update; link to active docs instead.
| Document | Description |
|----------|-------------|
| [`archive/CODE-REVIEW-FINDINGS.md`](archive/CODE-REVIEW-FINDINGS.md) | Early code review findings (most issues now fixed) |
| [`archive/REFACTORING-EXAMPLES.md`](archive/REFACTORING-EXAMPLES.md) | Pre-refactor code patterns (historical "before" examples) |
| [`archive/Claude-Review.md`](archive/Claude-Review.md) | Claude's initial code review |
| [`archive/AIReview-QWEN.md`](archive/AIReview-QWEN.md) | Qwen AI review |
| [`archive/AiOverview-Gemini.md`](archive/AiOverview-Gemini.md) | Gemini project overview |
| [`archive/AiOverview-OpenCode.md`](archive/AiOverview-OpenCode.md) | OpenCode project overview |
| [`archive/AiSecurityAudit-Gemini.md`](archive/AiSecurityAudit-Gemini.md) | Gemini security audit |
| [`archive/charles-todo.md`](archive/charles-todo.md) | Charles's early task list (completed) |
| [`archive/claude-todo.md`](archive/claude-todo.md) | Claude's early task list (completed) |
## External Tracking
| Resource | Description |
|----------|-------------|
| [Redmine](https://projects.knownelement.com) | **System of record for all work.** Version: Potential to Kinetic Ready (due 2026-09-30). Project: Technology & Facility Services (id 55) |
| [Gitea](https://git.knownelement.com/KNEL/PFVCluster) | Source code repository |
## Top-Level Files
| File | Description |
|------|-------------|
| [`../AGENTS.md`](../AGENTS.md) | Agent operating instructions (repo layout, git policy, Redmine tracking, gardening protocol) |
| [`../STATUS.md`](../STATUS.md) | Ticket index + infrastructure summary (read-only snapshot; work tracked in Redmine) |
| [`../README.md`](../README.md) | Project overview and quick start |
| [`../LICENSE`](../LICENSE) | License |
---
## Agent Gardening Protocol
When making changes to this repo, agents MUST:
1. **Update Redmine tickets** — all work status, completion, and issue tracking
lives in [Redmine](https://projects.knownelement.com), not in repo files.
2. **Update [`../STATUS.md`](../STATUS.md)** if the infrastructure summary or
ticket index needs refreshing (read-only snapshot only).
3. **Update this file (`docmap.md`)** if a doc is added, removed, or has a
substantive content change. Update the "Last Reviewed" date.
3. **Verify cross-references** — any new `.md` file must be linked from at
least one existing doc or this map.
4. **Check for stale paths** — after any directory rename or file move,
`grep -rn 'old/path' --include='*.md'` and fix all references.
5. **Keep code and docs in sync** — if you change a script's interface,
behavior, or location, update every doc that references it in the same
commit.
docs/server-build/DEPLOYMENT.md
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# TSYS FetchApply Deployment Guide # docs/server-build/DEPLOYMENT.md
## Overview > **Documentation moved to Discourse — the canonical source of truth.**
>
This guide provides comprehensive instructions for deploying the TSYS FetchApply infrastructure provisioning system on Linux servers. > **Server deployment procedures**
>
## Prerequisites > **Read it here:** https://community.turnsys.com/t/302
>
### System Requirements > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
- **Operating System:** Ubuntu 18.04+ or Debian 10+ (recommended) > Do not update content here — edit the Discourse wiki topic instead.*
- **RAM:** Minimum 2GB, recommended 4GB
- **Disk Space:** Minimum 10GB free space
- **Network:** Internet connectivity for package downloads
- **Privileges:** Root or sudo access required
### Required Tools
- `git` - Version control system
- `curl` - HTTP client for downloads
- `wget` - Alternative download tool
- `systemctl` - System service management
- `apt-get` - Package management (Debian/Ubuntu)
### Network Requirements
- **HTTPS access** to:
- `https://archive.ubuntu.com` (Ubuntu packages)
- `https://linux.dell.com` (Dell hardware support)
- `https://download.proxmox.com` (Proxmox packages)
- `https://github.com` (Git repositories)
## Pre-Deployment Validation
### 1. System Compatibility Check
```bash
# Clone repository
git clone [repository-url]
cd FetchApply
# Run system validation
./Project-Tests/validation/system-requirements.sh
```
### 2. Network Connectivity Test
```bash
# Test network connectivity
curl -I https://archive.ubuntu.com
curl -I https://linux.dell.com
curl -I https://download.proxmox.com
```
### 3. Permission Verification
```bash
# Verify write permissions
test -w /etc && echo "✅ /etc writable" || echo "❌ /etc not writable"
test -w /usr/local/bin && echo "✅ /usr/local/bin writable" || echo "❌ /usr/local/bin not writable"
```
## Deployment Methods
### Method 1: Standard Deployment (Recommended)
```bash
# 1. Clone repository
git clone [repository-url]
cd FetchApply
# 2. Run pre-deployment tests
./Project-Tests/run-tests.sh validation
# 3. Execute deployment
cd ProjectCode
sudo bash SetupNewSystem.sh
```
### Method 2: Dry Run Mode
```bash
# 1. Clone repository
git clone [repository-url]
cd FetchApply
# 2. Review configuration
cat provisioning/SetupNewSystem.sh
# 3. Execute with manual review
cd ProjectCode
sudo bash -x SetupNewSystem.sh # Debug mode
```
## Deployment Process
### Phase 1: Framework Initialization
1. **Environment Setup**
- Load framework variables
- Source framework includes
- Initialize logging system
2. **System Detection**
- Detect physical vs virtual hardware
- Identify operating system
- Check for existing users
### Phase 2: Base System Configuration
1. **Package Installation**
- Update package repositories
- Install essential packages
- Configure package sources
2. **User Management**
- Create required user accounts
- Configure SSH access
- Set up sudo permissions
### Phase 3: Security Hardening
1. **SSH Configuration**
- Deploy hardened SSH configuration
- Install SSH keys
- Disable password authentication
2. **System Hardening**
- Configure firewall rules
- Enable audit logging
- Install security tools
### Phase 4: Monitoring and Management
1. **Monitoring Agents**
- Deploy LibreNMS agents
- Configure SNMP
- Set up system monitoring
2. **Management Tools**
- Install Cockpit dashboard
- Configure remote access
- Set up maintenance scripts
## Post-Deployment Verification
### 1. Security Validation
```bash
# Run security tests
./Project-Tests/run-tests.sh security
# Verify SSH configuration
ssh -T [server-ip] # Should work with key authentication
```
### 2. Service Status Check
```bash
# Check critical services
sudo systemctl status ssh
sudo systemctl status auditd
sudo systemctl status snmpd
```
### 3. Network Connectivity
```bash
# Test internal services
curl -k https://localhost:9090 # Cockpit
snmpwalk -v2c -c public localhost system
```
## Troubleshooting
### Common Issues
#### 1. Permission Denied Errors
```bash
# Solution: Run with sudo
sudo bash SetupNewSystem.sh
```
#### 2. Network Connectivity Issues
```bash
# Check DNS resolution
nslookup archive.ubuntu.com
# Test direct IP access
curl -I 91.189.91.26 # Ubuntu archive IP
```
#### 3. Package Installation Failures
```bash
# Update package cache
sudo apt-get update
# Fix broken packages
sudo apt-get -f install
```
#### 4. SSH Key Issues
```bash
# Verify key permissions
ls -la ~/.ssh/
chmod 600 ~/.ssh/id_rsa
chmod 644 ~/.ssh/id_rsa.pub
```
### Debug Mode
```bash
# Enable debug logging
export DEBUG=1
bash -x SetupNewSystem.sh
```
### Log Analysis
```bash
# Check deployment logs
tail -f /var/log/fetchapply/deployment.log
# Review system logs
journalctl -u ssh
journalctl -u auditd
```
## Environment-Specific Configurations
### Physical Dell Servers
- **OMSA Installation:** Dell OpenManage Server Administrator
- **Hardware Monitoring:** iDRAC configuration
- **Performance Tuning:** CPU and memory optimizations
### Virtual Machines
- **Guest Additions:** VMware tools or VirtualBox additions
- **Resource Limits:** Memory and CPU constraints
- **Network Configuration:** Bridge vs NAT settings
### Development Environments
- **SSH Configuration:** Less restrictive settings
- **Development Tools:** Additional packages for development
- **Testing Access:** Enhanced logging and debugging
## Maintenance and Updates
### Regular Maintenance
```bash
# Update system packages
sudo apt-get update && sudo apt-get upgrade
# Update monitoring scripts
cd /usr/local/bin
sudo wget https://[repository]/scripts/up2date.sh
sudo chmod +x up2date.sh
```
### Security Updates
```bash
# Check for security updates
sudo apt-get update
sudo apt list --upgradable | grep -i security
# Apply security patches
sudo apt-get upgrade
```
### Configuration Updates
```bash
# Update FetchApply
cd FetchApply
git pull origin main
# Re-run specific modules
cd provisioning/Modules/Security
sudo bash secharden-ssh.sh
```
## Best Practices
### 1. Pre-Deployment
- Always test in non-production environment first
- Review all scripts before execution
- Validate network connectivity
- Ensure proper backup procedures
### 2. During Deployment
- Monitor deployment progress
- Check for errors and warnings
- Document any customizations
- Validate each phase completion
### 3. Post-Deployment
- Run full security test suite
- Verify all services are running
- Test remote access
- Document deployment specifics
### 4. Ongoing Operations
- Regular security updates
- Monitor system performance
- Review audit logs
- Maintain deployment documentation
## Support and Resources
### Documentation
- **README.md:** Basic usage instructions
- **SECURITY.md:** Security architecture and guidelines
- **tests/README.md:** Testing framework documentation
### Community Support
- **Issues:** https://projects.knownelement.com/project/reachableceo-vptechnicaloperations/timeline
- **Discussion:** https://community.turnsys.com/c/chieftechnologyandproductofficer/26
### Professional Support
- **Technical Support:** [Contact information to be added]
- **Consulting Services:** [Contact information to be added]
## Deployment Checklist
### Pre-Deployment
- [ ] System requirements validated
- [ ] Network connectivity tested
- [ ] Backup procedures in place
- [ ] Security review completed
### Deployment
- [ ] Repository cloned successfully
- [ ] Pre-deployment tests passed
- [ ] Deployment executed without errors
- [ ] Post-deployment verification completed
### Post-Deployment
- [ ] Security tests passed
- [ ] All services running
- [ ] Remote access verified
- [ ] Documentation updated
### Maintenance
- [ ] Update schedule established
- [ ] Monitoring configured
- [ ] Backup procedures tested
- [ ] Incident response plan activated
## Version History
- **v1.0:** Initial deployment framework
- **v1.1:** Added security hardening and secrets management
- **v1.2:** Enhanced testing framework and documentation
Last updated: July 14, 2025
docs/server-build/DEVELOPMENT-GUIDELINES.md
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<!-- Historical AI-generated review. Paths may reference pre-merge structure. --> # docs/server-build/DEVELOPMENT-GUIDELINES.md
# TSYS PFVCluster Development Guidelines
> **Documentation moved to Discourse — the canonical source of truth.**
## Overview >
> **Coding standards, commit conventions, script patterns**
This document contains development standards and best practices for the TSYS PFVCluster infrastructure provisioning system. >
> **Read it here:** https://community.turnsys.com/t/302
## Package Management Best Practices >
> *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
### Combine apt-get Install Commands > Do not update content here — edit the Discourse wiki topic instead.*
**Rule:** Always combine multiple package installations into a single `apt-get install` command for performance.
**Rationale:** Single command execution is significantly faster than multiple separate commands due to:
- Reduced package cache processing
- Single dependency resolution
- Fewer network connections
- Optimized package download ordering
#### ✅ Correct Implementation
```bash
# Install all packages in one command
apt-get install -y package1 package2 package3 package4
# Real example from 2FA script
apt-get install -y libpam-google-authenticator qrencode
```
#### ❌ Incorrect Implementation
```bash
# Don't use separate commands for each package
apt-get install -y package1
apt-get install -y package2
apt-get install -y package3
```
#### Complex Package Installation Pattern
```bash
function install_security_packages() {
print_info "Installing security packages..."
# Update package cache once
apt-get update
# Install all packages in single command
apt-get install -y \
auditd \
fail2ban \
libpam-google-authenticator \
lynis \
rkhunter \
aide \
chkrootkit \
clamav \
clamav-daemon
print_success "Security packages installed successfully"
}
```
## Script Development Standards
### Error Handling
- Always use `set -euo pipefail` at script start
- Implement proper error trapping
- Use framework error handling functions
- Return appropriate exit codes
### Function Structure
```bash
function function_name() {
print_info "Description of what function does..."
# Local variables
local var1="value"
local var2="value"
# Function logic
if [[ condition ]]; then
print_success "Success message"
return 0
else
print_error "Error message"
return 1
fi
}
```
### Framework Integration
- Source framework includes at script start
- Use framework logging and pretty print functions
- Follow existing patterns for consistency
- Include proper PROJECT_ROOT path resolution
```bash
# Standard framework sourcing pattern
PROJECT_ROOT="$(dirname "$(realpath "${BASH_SOURCE[0]}")")/../.."
source "$PROJECT_ROOT/Framework-Includes/PrettyPrint.sh"
source "$PROJECT_ROOT/Framework-Includes/Logging.sh"
source "$PROJECT_ROOT/Framework-Includes/ErrorHandling.sh"
```
## Code Quality Standards
### ShellCheck Compliance
- All scripts must pass shellcheck validation
- Address shellcheck warnings appropriately
- Use proper quoting for variables
- Handle edge cases and error conditions
### Variable Naming
- Use UPPERCASE for global constants
- Use lowercase for local variables
- Use descriptive names
- Quote all variable expansions
```bash
# Global constants
declare -g BACKUP_DIR="/root/backup"
declare -g CONFIG_FILE="/etc/ssh/sshd_config"
# Local variables
local user_name="localuser"
local temp_file="/tmp/config.tmp"
# Proper quoting
if [[ -f "$CONFIG_FILE" ]]; then
cp "$CONFIG_FILE" "$BACKUP_DIR/"
fi
```
### Function Documentation
- Include purpose description
- Document parameters if any
- Document return values
- Include usage examples for complex functions
```bash
# Configure SSH hardening settings
# Parameters: none
# Returns: 0 on success, 1 on failure
# Usage: configure_ssh_hardening
function configure_ssh_hardening() {
print_info "Configuring SSH hardening..."
# Implementation
}
```
## Testing Requirements
### Test Coverage
- Every new module must include corresponding tests
- Test both success and failure scenarios
- Validate configurations after changes
- Include integration tests for complex workflows
### Test Categories
1. **Unit Tests:** Individual function validation
2. **Integration Tests:** Module interaction testing
3. **Security Tests:** Security configuration validation
4. **Validation Tests:** System requirement checking
### Test Implementation Pattern
```bash
function test_function_name() {
echo "🔍 Testing specific functionality..."
local failed=0
# Test implementation
if [[ condition ]]; then
echo "✅ Test passed"
else
echo "❌ Test failed"
((failed++))
fi
return $failed
}
```
## Security Standards
### Configuration Backup
- Always backup configurations before modification
- Use timestamped backup directories
- Provide restore instructions
- Test backup/restore procedures
### Service Management
- Test configurations before restarting services
- Provide rollback procedures
- Validate service status after changes
- Include service dependency handling
### User Safety
- Use `nullok` for gradual 2FA rollout
- Provide clear setup instructions
- Include emergency access procedures
- Test all access methods before enforcement
## Documentation Standards
### Script Headers
```bash
#!/bin/bash
# TSYS Module Name - Brief Description
# Longer description of what this script does
# Author: TSYS Development Team
# Version: 1.0
# Last Updated: YYYY-MM-DD
set -euo pipefail
```
### Inline Documentation
- Comment complex logic
- Explain non-obvious decisions
- Document external dependencies
- Include troubleshooting notes
### User Documentation
- Create comprehensive guides for complex features
- Include step-by-step procedures
- Provide troubleshooting sections
- Include examples and use cases
## Performance Optimization
### Package Management
- Single apt-get commands (as noted above)
- Cache package lists appropriately
- Use specific package versions when stability required
- Clean up package cache when appropriate
### Network Operations
- Use connection timeouts for external requests
- Implement retry logic with backoff
- Cache downloaded resources when possible
- Validate download integrity
### File Operations
- Use efficient file processing tools
- Minimize file system operations
- Use appropriate file permissions
- Clean up temporary files
## Version Control Practices
### Commit Messages
- Use descriptive commit messages
- Include scope of changes
- Reference related issues/requirements
- Follow established commit message format
### Branch Management
- Test changes in feature branches
- Use pull requests for review
- Maintain clean commit history
- Tag releases appropriately
### Code Review Requirements
- All changes require review
- Security changes require security team review
- Test coverage must be maintained
- Documentation must be updated
## Deployment Practices
### Pre-Deployment
- Run full test suite
- Validate in test environment
- Review security implications
- Update documentation
### Deployment Process
- Use configuration validation
- Implement gradual rollout when possible
- Monitor for issues during deployment
- Have rollback procedures ready
### Post-Deployment
- Validate deployment success
- Monitor system performance
- Update operational documentation
- Gather feedback for improvements
## Example Implementation
### Complete Module Template
```bash
#!/bin/bash
# TSYS Security Module - Template
# Template for creating new security modules
# Author: TSYS Development Team
set -euo pipefail
# Source framework functions
PROJECT_ROOT="$(dirname "$(realpath "${BASH_SOURCE[0]}")")/../.."
source "$PROJECT_ROOT/Framework-Includes/PrettyPrint.sh"
source "$PROJECT_ROOT/Framework-Includes/Logging.sh"
source "$PROJECT_ROOT/Framework-Includes/ErrorHandling.sh"
# Module configuration
BACKUP_DIR="/root/backup/module-$(date +%Y%m%d-%H%M%S)"
CONFIG_FILE="/etc/example.conf"
# Create backup directory
mkdir -p "$BACKUP_DIR"
print_header "TSYS Module Template"
function backup_configs() {
print_info "Creating configuration backup..."
if [[ -f "$CONFIG_FILE" ]]; then
cp "$CONFIG_FILE" "$BACKUP_DIR/"
print_success "Configuration backed up"
fi
}
function install_packages() {
print_info "Installing required packages..."
# Update package cache
apt-get update
# Install all packages in single command
apt-get install -y package1 package2 package3
print_success "Packages installed successfully"
}
function configure_module() {
print_info "Configuring module..."
# Configuration logic here
print_success "Module configured successfully"
}
function validate_configuration() {
print_info "Validating configuration..."
local failed=0
# Validation logic here
if [[ $failed -eq 0 ]]; then
print_success "Configuration validation passed"
return 0
else
print_error "Configuration validation failed"
return 1
fi
}
function main() {
# Check if running as root
if [[ $EUID -ne 0 ]]; then
print_error "This script must be run as root"
exit 1
fi
# Execute module steps
backup_configs
install_packages
configure_module
validate_configuration
print_success "Module setup completed successfully!"
}
# Run main function
main "$@"
```
## Continuous Improvement
### Regular Reviews
- Review guidelines quarterly
- Update based on lessons learned
- Incorporate new best practices
- Gather team feedback
### Tool Updates
- Keep development tools current
- Adopt new security practices
- Update testing frameworks
- Improve automation
### Knowledge Sharing
- Document lessons learned
- Share best practices
- Provide training materials
- Maintain knowledge base
---
**Last Updated:** July 14, 2025
**Version:** 1.0
**Author:** TSYS Development Team
**Note:** These guidelines are living documents and should be updated as the project evolves and new best practices are identified.
docs/server-build/SECURITY.md
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# PFVCluster Security Documentation # docs/server-build/SECURITY.md
## Security Architecture > **Documentation moved to Discourse — the canonical source of truth.**
>
The PFVCluster infrastructure provisioning system is designed with security-first principles, implementing multiple layers of protection for server deployment and management. > **Security architecture: SSH hardening, 2FA, SCAP-STIG, Wazuh, auditd**
>
## Current Security Features > **Read it here:** https://community.turnsys.com/t/303
>
### 1. Secure Deployment Method ✅ > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
- **Git-based deployment:** Uses `git clone` instead of `curl | bash` > Do not update content here — edit the Discourse wiki topic instead.*
- **Local execution:** Scripts run locally after inspection
- **Version control:** Full audit trail of changes
- **Code review:** Changes require explicit approval
### 2. HTTPS Enforcement ✅
- **All downloads use HTTPS:** Eliminates man-in-the-middle attacks
- **SSL certificate validation:** Automatic certificate checking
- **Secure repositories:** Ubuntu archive, Dell, Proxmox all use HTTPS
- **No HTTP fallbacks:** No insecure download methods
### 3. SSH Hardening
- **Key-only authentication:** Password login disabled
- **Secure ciphers:** Modern encryption algorithms only
- **Fail2ban protection:** Automated intrusion prevention
- **Custom SSH configuration:** Hardened sshd_config
### 4. System Security
- **Firewall configuration:** Automated iptables rules
- **Audit logging:** auditd with custom rules
- **SIEM integration:** Wazuh agent deployment
- **Compliance scanning:** SCAP-STIG automated checks
### 5. Error Handling
- **Bash strict mode:** `set -euo pipefail` prevents errors
- **Centralized logging:** All operations logged with timestamps
- **Graceful failures:** Proper cleanup on errors
- **Line-level debugging:** Error reporting with line numbers
## Security Testing
### Automated Security Validation
```bash
# Run security test suite
./tests/run-tests.sh security
# Specific security tests
./tests/security/https-enforcement.sh
```
### Security Test Categories
1. **HTTPS Enforcement:** Validates all URLs use HTTPS
2. **Deployment Security:** Checks for secure deployment methods
3. **SSL Certificate Validation:** Tests certificate authenticity
4. **Permission Validation:** Verifies proper file permissions
## Threat Model
### Mitigated Threats
- **Supply Chain Attacks:** Git-based deployment with review
- **Man-in-the-Middle:** HTTPS-only downloads
- **Privilege Escalation:** Proper permission models
- **Unauthorized Access:** SSH hardening and key management
### Remaining Risks
- **Secrets in Repository:** SSH keys stored in git (planned for removal)
- **No Integrity Verification:** Downloads lack checksum validation
- **No Backup/Recovery:** No rollback capability implemented
## Security Recommendations
### High Priority
1. **Implement Secrets Management**
- Remove SSH keys from repository
- Use Bitwarden/Vault for secret storage
- Implement key rotation procedures
2. **Add Download Integrity Verification**
- SHA256 checksum validation for all downloads
- GPG signature verification where available
- Fail-safe on integrity check failures
3. **Enhance Audit Logging**
- Centralized log collection
- Real-time security monitoring
- Automated threat detection
### Medium Priority
1. **Configuration Backup**
- System state snapshots before changes
- Rollback capability for failed deployments
- Configuration drift detection
2. **Network Security**
- VPN-based deployment (where applicable)
- Network segmentation for management
- Encrypted communication channels
## Compliance
### Security Standards
- **CIS Benchmarks:** Automated compliance checking
- **STIG Guidelines:** SCAP-based validation
- **Industry Best Practices:** Following NIST cybersecurity framework
### Audit Requirements
- **Change Tracking:** All modifications logged
- **Access Control:** Permission-based system access
- **Vulnerability Management:** Regular security assessments
## Incident Response
### Security Event Handling
1. **Detection:** Automated monitoring and alerting
2. **Containment:** Immediate isolation procedures
3. **Investigation:** Log analysis and forensics
4. **Recovery:** System restoration procedures
5. **Lessons Learned:** Process improvement
### Contact Information
- **Security Team:** [To be defined]
- **Incident Response:** [To be defined]
- **Escalation Path:** [To be defined]
## Security Development Lifecycle
### Code Review Process
1. **Static Analysis:** Automated security scanning
2. **Peer Review:** Manual code inspection
3. **Security Testing:** Automated security test suite
4. **Approval:** Security team sign-off
### Deployment Security
1. **Pre-deployment Validation:** Security test execution
2. **Secure Deployment:** Authorized personnel only
3. **Post-deployment Verification:** Security configuration validation
4. **Monitoring:** Continuous security monitoring
## Security Tools and Integrations
### Current Tools
- **Wazuh:** SIEM and security monitoring
- **Lynis:** Security auditing
- **auditd:** System call auditing
- **Fail2ban:** Intrusion prevention
### Planned Integrations
- **Vault/Bitwarden:** Secrets management
- **OSSEC:** Host-based intrusion detection
- **Nessus/OpenVAS:** Vulnerability scanning
- **ELK Stack:** Log aggregation and analysis
## Vulnerability Management
### Vulnerability Scanning
- **Regular scans:** Monthly vulnerability assessments
- **Automated patching:** Security update automation
- **Exception handling:** Risk-based patch management
- **Reporting:** Executive security dashboards
### Disclosure Process
1. **Internal Discovery:** Report to security team
2. **Assessment:** Risk and impact evaluation
3. **Remediation:** Patch development and testing
4. **Deployment:** Coordinated security updates
5. **Verification:** Post-patch validation
## Security Metrics
### Key Performance Indicators
- **Deployment Success Rate:** Percentage of successful secure deployments
- **Vulnerability Response Time:** Time to patch critical vulnerabilities
- **Security Test Coverage:** Percentage of code covered by security tests
- **Incident Response Time:** Time to detect and respond to security events
### Monitoring and Reporting
- **Real-time Dashboards:** Security status monitoring
- **Executive Reports:** Monthly security summaries
- **Compliance Reports:** Quarterly compliance assessments
- **Trend Analysis:** Security posture improvement tracking
## Contact and Support
For security-related questions or incidents:
- **Repository Issues:** https://projects.knownelement.com/project/reachableceo-vptechnicaloperations/timeline
- **Community Discussion:** https://community.turnsys.com/c/chieftechnologyandproductofficer/26
- **Security Team:** [Contact information to be added]
## Security Updates
This document is updated as security features are implemented and threats evolve. Last updated: July 14, 2025.
docs/server-build/TSYS-2FA-GUIDE.md
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# TSYS Two-Factor Authentication Implementation Guide # docs/server-build/TSYS-2FA-GUIDE.md
## Overview > **Documentation moved to Discourse — the canonical source of truth.**
>
This guide provides complete instructions for implementing and managing two-factor authentication (2FA) on TSYS servers using Google Authenticator (TOTP). > **End-user guide for 2FA setup**
>
## What This Implementation Provides > **Read it here:** https://community.turnsys.com/t/303
>
### Services Protected by 2FA > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
- **SSH Access:** Requires SSH key + 2FA token > Do not update content here — edit the Discourse wiki topic instead.*
- **Cockpit Web Interface:** Requires password + 2FA token
- **Webmin Administration:** Requires password + 2FA token (if installed)
### Security Features
- **Time-based One-Time Passwords (TOTP):** Standard 6-digit codes
- **Backup Codes:** Emergency access codes
- **Gradual Rollout:** Optional nullok mode for phased deployment
- **Configuration Backup:** Automatic backup of all configs
## Implementation Steps
### Step 1: Run the 2FA Setup Script
```bash
# Navigate to the security modules directory
cd provisioning/Modules/Security
# Run the 2FA setup script as root
sudo bash secharden-2fa.sh
```
### Step 2: Validate Installation
```bash
# Run 2FA validation tests
./Project-Tests/security/2fa-validation.sh
# Run specific 2FA security test
./Project-Tests/run-tests.sh security
```
### Step 3: Setup Individual Users
For each user that needs 2FA access:
```bash
# Check setup instructions
cat /home/username/2fa-setup-instructions.txt
# Run user setup script
sudo /tmp/setup-2fa-username.sh
```
### Step 4: Test 2FA Access
1. **Test SSH access** from another terminal
2. **Test Cockpit access** via web browser
3. **Test Webmin access** if installed
## User Setup Process
### Installing Authenticator Apps
Users need one of these apps on their phone:
- **Google Authenticator** (Android/iOS)
- **Authy** (Android/iOS)
- **Microsoft Authenticator** (Android/iOS)
- **1Password** (with TOTP support)
### Setting Up 2FA for a User
1. **Run setup script:**
```bash
sudo /tmp/setup-2fa-username.sh
```
2. **Follow prompts:**
- Answer "y" to update time-based token
- Scan QR code with authenticator app
- Save emergency backup codes securely
- Answer "y" to remaining security questions
3. **Test immediately:**
```bash
# Test SSH from another terminal
ssh username@server-ip
# You'll be prompted for 6-digit code
```
## Configuration Details
### SSH Configuration Changes
File: `/etc/ssh/sshd_config`
```
ChallengeResponseAuthentication yes
UsePAM yes
AuthenticationMethods publickey,keyboard-interactive
```
### PAM Configuration
File: `/etc/pam.d/sshd`
```
auth required pam_google_authenticator.so nullok
```
### Cockpit Configuration
File: `/etc/cockpit/cockpit.conf`
```
[WebService]
LoginTitle = TSYS Server Management
LoginTo = 300
RequireHost = true
[Session]
Banner = /etc/cockpit/issue.cockpit
IdleTimeout = 15
```
### Webmin Configuration
File: `/etc/webmin/miniserv.conf`
```
twofactor_provider=totp
twofactor=1
```
## Security Considerations
### Gradual vs Strict Enforcement
#### Gradual Enforcement (Default)
- Uses `nullok` option in PAM
- Users without 2FA can still log in
- Allows phased rollout
- Good for initial deployment
#### Strict Enforcement
- Remove `nullok` from PAM configuration
- All users must have 2FA configured
- Immediate security enforcement
- Risk of lockout if misconfigured
### Backup and Recovery
#### Emergency Access
- **Backup codes:** Generated during setup
- **Root access:** Can disable 2FA if needed
- **Console access:** Physical/virtual console bypasses SSH
#### Configuration Backup
- Automatic backup to `/root/backup/2fa-TIMESTAMP/`
- Includes all modified configuration files
- Can be restored if needed
## Troubleshooting
### Common Issues
#### 1. User Cannot Generate QR Code
```bash
# Ensure qrencode is installed
sudo apt-get install qrencode
# Re-run user setup
sudo /tmp/setup-2fa-username.sh
```
#### 2. SSH Connection Fails
```bash
# Check SSH service status
sudo systemctl status sshd
# Test SSH configuration
sudo sshd -t
# Check logs
sudo journalctl -u sshd -f
```
#### 3. 2FA Code Not Accepted
- **Check time synchronization** on server and phone
- **Verify app setup** - rescan QR code if needed
- **Try backup codes** if available
#### 4. Locked Out of Server
```bash
# Access via console (physical/virtual)
# Disable 2FA temporarily
sudo cp /root/backup/2fa-*/pam.d.bak/sshd /etc/pam.d/sshd
sudo systemctl restart sshd
```
### Debug Commands
```bash
# Check 2FA status
./Project-Tests/security/2fa-validation.sh
# Check SSH configuration
sudo sshd -T | grep -E "(Challenge|PAM|Authentication)"
# Check PAM configuration
cat /etc/pam.d/sshd | grep google-authenticator
# Check user 2FA status
ls -la ~/.google_authenticator
```
## Management and Maintenance
### Adding New Users
1. Ensure user account exists
2. Run setup script for new user
3. Provide setup instructions
4. Test access
### Removing User 2FA
```bash
# Remove user's 2FA configuration
sudo rm /home/username/.google_authenticator
# User will need to re-setup 2FA
```
### Disabling 2FA System-Wide
```bash
# Restore original configurations
sudo cp /root/backup/2fa-*/sshd_config.bak /etc/ssh/sshd_config
sudo cp /root/backup/2fa-*/pam.d.bak/sshd /etc/pam.d/sshd
sudo systemctl restart sshd
```
### Updating 2FA Configuration
```bash
# Re-run setup script
sudo bash secharden-2fa.sh
# Validate changes
./Project-Tests/security/2fa-validation.sh
```
## Best Practices
### Deployment Strategy
1. **Test in non-production** environment first
2. **Enable gradual rollout** (nullok) initially
3. **Train users** on 2FA setup process
4. **Test emergency procedures** before strict enforcement
5. **Monitor logs** for authentication issues
### Security Recommendations
- **Enforce strict mode** after successful rollout
- **Regular backup code rotation**
- **Monitor failed authentication attempts**
- **Document emergency procedures**
- **Regular security audits**
### User Training
- **Provide clear instructions**
- **Demonstrate setup process**
- **Explain backup code importance**
- **Test login process with users**
- **Establish support procedures**
## Monitoring and Logging
### Authentication Logs
```bash
# SSH authentication logs
sudo journalctl -u sshd | grep -i "authentication"
# PAM authentication logs
sudo journalctl | grep -i "pam_google_authenticator"
# Failed login attempts
sudo journalctl | grep -i "failed"
```
### Security Monitoring
- Monitor for repeated failed 2FA attempts
- Alert on successful logins without 2FA (during gradual rollout)
- Track user 2FA setup completion
- Monitor for emergency access usage
## Integration with Existing Systems
### LDAP/Active Directory
- 2FA works with existing authentication systems
- Users still need local 2FA setup
- Consider centralized 2FA solutions for large deployments
### Monitoring Systems
- LibreNMS: Will continue to work with SNMP
- Wazuh: Will log 2FA authentication events
- Cockpit: Enhanced with 2FA protection
### Backup Systems
- Ensure backup procedures account for 2FA
- Test restore procedures with 2FA enabled
- Document emergency access procedures
## Support and Resources
### Files Created by Setup
- `/tmp/setup-2fa-*.sh` - User setup scripts
- `/home/*/2fa-setup-instructions.txt` - User instructions
- `/root/backup/2fa-*/` - Configuration backups
### Validation Tools
- `./Project-Tests/security/2fa-validation.sh` - Complete 2FA validation
- `./Project-Tests/run-tests.sh security` - Security test suite
### Emergency Contacts
- System Administrator: [Contact Info]
- Security Team: [Contact Info]
- 24/7 Support: [Contact Info]
## Compliance and Audit
### Security Benefits
- Significantly reduces risk of unauthorized access
- Meets multi-factor authentication requirements
- Provides audit trail of authentication events
- Complies with security frameworks (NIST, ISO 27001)
### Audit Trail
- All authentication attempts logged
- 2FA setup events recorded
- Configuration changes tracked
- Emergency access documented
---
**Last Updated:** July 14, 2025
**Version:** 1.0
**Author:** TSYS Security Team
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# Tailscale vs. Managed DNS — Architecture Analysis # docs/server-build/tailscale.md
> **Status:** **RESOLVED.** The pfv-netinfra-01/02 pair now runs production > **Documentation moved to Discourse — the canonical source of truth.**
> Technitium DNS with all `knel.net` records replicated from tailscale-router >
> via the DNS cluster setup. Both LAN IPs serve authoritative records for > **Tailscale vs managed DNS analysis (resolved)**
> `knel.net` and recurse externally. This document records the original >
> conflict, how it was resolved, and the recommended client configuration. > **Read it here:** https://community.turnsys.com/t/306
>
## 1. Executive summary > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
> Do not update content here — edit the Discourse wiki topic instead.*
Every host in this build runs the Tailscale client, and Tailscale's MagicDNS
manages `/etc/resolv.conf` by default (pointing at `100.100.100.100`). This
previously conflicted with a managed `resolv.conf` pointing at the LAN
resolvers. The root cause was that the LAN Technitium instances did not have
the `knel.net` zone populated — **that is now fixed.**
The pfv-netinfra-01/02 pair now serves identical, authoritative `knel.net`
records (replicated from production via [`dns-cluster-setup/`](../dns-cluster-setup/README.md)).
Both LAN IPs resolve `knel.net` device names and recurse externally. The
managed `resolv.conf` is now safe to deploy.
**Recommendation:** Deploy the managed `resolv.conf` (`.252`/`.253`) on hosts
where you want tunnel-independent DNS. Leave Tailscale managing DNS on hosts
where MagicDNS device names must resolve without a LAN path (e.g. laptops off
-network). See [§5](#5-recommendation) for details.
## 2. How name resolution works today (post-cluster-setup)
Probed from `sectestbed-sandbox` (192.168.3.50) after the DNS cluster was
deployed:
| Query path | External name (`github.com`) | `knel.net` device name (`pfv-netinfra-01.knel.net`) |
|---|---|---|
| Via Tailscale resolver (`100.100.100.100`) | resolves | resolves → `100.70.181.72` (Tailscale CGNAT) |
| Direct `dig @192.168.3.252` (Technitium primary, LAN) | resolves (recurses) | **resolves** → `100.70.181.72` |
| Direct `dig @192.168.3.253` (Technitium secondary, LAN) | resolves (recurses) | **resolves** → `100.70.181.72` |
**Both LAN resolvers now serve `knel.net` records identically.** The
Technitium zone is no longer stale — it was replicated from production
(tailscale-router) as part of the DNS cluster setup.
### What changed
Previously (before the DNS cluster setup), querying the LAN IPs returned
NXDOMAIN for `knel.net` device names because the Technitium `knel.net` zone
was empty (SOA serial `2025062313`, dated 2025-06-23). After replicating
production config to both netinfra hosts, all 124 zones — including
`knel.net` with all current device records — are served authoritatively on
both `.252` and `.253`.
## 3. The DNS server pair
| Host | IP | Role | Services |
|------|----|------|----------|
| pfv-netinfra-01 | 192.168.3.252 | **Primary** | Technitium (authoritative, port 5300) + Pi-hole (recursive, port 53) |
| pfv-netinfra-02 | 192.168.3.253 | **Secondary** | Technitium (replicated via rsync, port 5300) + Pi-hole (recursive, port 53) |
Zone replication is rsync-based (every 60s via systemd timer) because
Technitium's AXFR uses port 53, which is occupied by Pi-hole on these hosts.
See [`dns-cluster-setup/README.md`](../dns-cluster-setup/README.md) for
full details.
## 4. NTP (fully resolved)
NTP is independent of DNS: `provisioning/ConfigFiles/NTP/ntp.conf` points
directly at the LAN IPs with no DNS dependency:
```
server 192.168.3.252 iburst
server 192.168.3.253 iburst
```
Both servers respond with stratum 2/3. The client config uses `restrict`
rules (not `interface listen`) to avoid the loopback-binding bug that
prevented sync. This is safe under both Tailscale-managed and LAN-pinned
resolver configurations.
## 5. Recommendation
### On fixed servers (always on-LAN)
**Deploy the managed `resolv.conf`** (`provisioning/ConfigFiles/Resolv/`):
- Points at `.252`/`.253` with failover
- `knel.net` records resolve on both servers
- External names recurse on both servers
- DNS survives `tailscaled` outages (unlike Tailscale-managed DNS)
To prevent Tailscale from overwriting the managed file:
```bash
tailscale up --accept-dns=false
```
### On laptops / roaming hosts
**Let Tailscale manage DNS** (default `accept-dns=true`):
- MagicDNS resolves `knel.net` device names via the tunnel
- No dependency on LAN reachability
- Accept the `tailscaled` dependency (if the tunnel is down, you're off-network anyway)
## 6. Subnet router HA (redundant routing)
> **Redmine:** [#377](https://projects.knownelement.com/issues/377)
Both DNS nodes advertise the LAN subnet as Tailscale subnet routes AND
serve as exit nodes, providing full HA for remote monitoring (Uptime Kuma
on the Cloudron VPS), off-site access, and internet egress:
| Node | Tailscale IP | Advertised routes | Role |
|------|-------------|-------------------|------|
| pfv-netinfra-01 | 100.70.181.72 | 192.168.0.0/22, 0.0.0.0/0, ::/0 | Primary subnet router + exit node |
| pfv-netinfra-02 | 100.71.171.20 | 192.168.0.0/22, 0.0.0.0/0, ::/0 | Secondary subnet router + exit node (failover) |
To configure on a node (both flags together):
```bash
sudo tailscale set --advertise-routes=192.168.0.0/22 --advertise-exit-node
```
**All routes must be approved** in the Tailscale admin console
(https://login.tailscale.com/admin/machines) for failover to activate.
This includes the subnet route (`192.168.0.0/22`) AND the exit node routes
(`0.0.0.0/0`, `::/0`) — they appear as separate approvals on each machine.
Tailscale uses the primary by default and fails over to the secondary if
the primary's tunnel drops.
### Known instability factors (2026-08-06, [#377])
- **DERP relay bouncing:** netinfra-01 was observed switching between DERP
relays (#9, #12, #13) every ~15 minutes, causing brief tunnel disruptions.
- **Docker LinkChange events:** container create/destroy adds/removes bridge
interfaces, triggering `LinkChange: major, rebinding` in tailscaled and
momentarily dropping all connections.
- **resolv.conf immutable flag:** netinfra-01 had the `+i` (immutable)
attribute on `/etc/resolv.conf`, preventing tailscaled from updating DNS
config after link changes. Fixed by `chattr -i /etc/resolv.conf`.
## 7. Known items / future work
1. **Pi-hole upstream configuration.** Pi-hole on both hosts should forward
to the local Technitium instance (port 5300) for `knel.net` and to an
external resolver for everything else. Verify this is configured on both
nodes.
2. **Zone transfer via AXFR.** Currently using rsync because Technitium's
AXFR expects port 53. If Technitium's listen port can be changed, or
Pi-hole can be configured to proxy AXFR, the rsync timer could be
replaced with native DNS zone transfer.
3. **`accept-dns=false` automation.** The provisioning code should set
`--accept-dns=false` on Tailscale during setup (after deploying the
managed `resolv.conf`) so Tailscale doesn't overwrite it on reboot.
k8s/README.md
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# k8s/ — pfv-k8s Cluster Setup Scripts # k8s/README.md
> **Redmine:** [#362](https://projects.knownelement.com/issues/362) (initial build, closed) · [#367](https://projects.knownelement.com/issues/367) (rebuild, open) · [#368](https://projects.knownelement.com/issues/368) (worker join, open) > **Documentation moved to Discourse — the canonical source of truth.**
>
Scripts to bootstrap and manage the k3s control plane on cnode1/2/3. > **k3s cluster setup scripts: wipe, bootstrap, taint, verify**
All cluster communication goes over Tailscale IPs — no LAN traffic. >
> **Read it here:** https://community.turnsys.com/t/305
## Current State >
> *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
3-node HA control plane (k3s v1.36.2+k3s1, embedded etcd): > Do not update content here — edit the Discourse wiki topic instead.*
| Node | Tailscale IP | Role | Tainted |
|------|-------------|------|---------|
| pfv-k8s-cnode1 | 100.97.178.106 | control-plane, etcd | NoSchedule |
| pfv-k8s-cnode2 | 100.109.34.72 | control-plane, etcd | NoSchedule |
| pfv-k8s-cnode3 | 100.106.222.18 | control-plane, etcd | NoSchedule |
## Scripts
| Script | Purpose |
|--------|---------|
| [`env.sh`](env.sh) | Shared config: node IPs, SSH opts, k3s version. Sourced by all scripts. |
| [`wipe.sh`](wipe.sh) | Remove existing k3s from all cnodes (clean slate). |
| [`install-cp.sh`](install-cp.sh) | Full bootstrap: cnode1 (--cluster-init) then cnode2/3 join. |
| [`join-servers.sh`](join-servers.sh) | Re-join cnode2/3 only (if cnode1 is already up). |
| [`post-setup.sh`](post-setup.sh) | Apply NoSchedule taints, fetch kubeconfig, verify. |
| [`verify.sh`](verify.sh) | Health check: nodes Ready, Tailscale IPs, taints, etcd, CoreDNS. |
| [`probe-nodes.sh`](probe-nodes.sh) | Verify SSH + Tailscale reachability. |
## Usage
```bash
# Full bootstrap from scratch:
bash k8s/wipe.sh
bash k8s/install-cp.sh
bash k8s/post-setup.sh
bash k8s/verify.sh
# Access the cluster:
export KUBECONFIG=~/.kube/config.pfv-k8s
kubectl get nodes
```
## Design Decisions
- **k3s (not Talos):** This is a regular R&D cluster, not ITAR/classified.
Talos architecture is documented in [`docs/`](docs/) for when
that requirement comes online. k3s on stock Debian is simpler to operate.
- **Tailscale-only transport:** `--node-ip`, `--advertise-address`, and
`--tls-san` are all set to Tailscale IPs. No LAN IP appears in any node
status or certificate.
- **VXLAN flannel:** Pods communicate via flannel VXLAN overlay on top of
Tailscale's WireGuard. Double-encrypted, but functional and reliable.
- **NoSchedule taint:** All 3 cnodes are tainted so no user workloads
schedule on the control plane. Only system components (CoreDNS,
metrics-server, flannel, kube-proxy) with built-in tolerations run here.
- **Embedded etcd:** 3-node HA etcd quorum. Tolerates 1 node failure.
k8s/docs/ARCHITECTURE.md
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# pfv-k8s Target Architecture (Talos) # k8s/docs/ARCHITECTURE.md
> **Companion to:** [`DISTRO-DECISION.md`](DISTRO-DECISION.md) (why Talos), > **Documentation moved to Discourse — the canonical source of truth.**
> [`../proxmox/K8S.md`](../proxmox/K8S.md) (storage/host analysis from the >
> Proxmox audit). > **k8s target architecture: control plane, network, identity, storage, DR**
>
**Last updated:** 2026-07-28 > **Read it here:** https://community.turnsys.com/t/305
>
--- > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
> Do not update content here — edit the Discourse wiki topic instead.*
## Table of Contents
1. [High-Level Architecture](#1-high-level-architecture)
2. [Control Plane](#2-control-plane)
3. [Network Topology](#3-network-topology)
4. [CNI: Cilium](#4-cni-cilium)
5. [Identity and Trust](#5-identity-and-trust)
6. [Tenant Isolation (vcluster)](#6-tenant-isolation-vcluster)
7. [Storage Integration](#7-storage-integration)
8. [Local Image Registry](#8-local-image-registry)
9. [Bootstrap Procedure](#9-bootstrap-procedure)
10. [Disaster Recovery](#10-disaster-recovery)
11. [Migration from Current State](#11-migration-from-current-state)
---
## 1. High-Level Architecture
```mermaid
flowchart TB
subgraph RESIDENCE["Residence — Proxmox LAN"]
subgraph CP["Talos Control Plane (3 cnodes)"]
C1[cnode1<br/>tsys9 · local-SSD]
C2[cnode2<br/>tsys9 · local-SSD]
C3[cnode3<br/>tsys1 · local-HDD]
end
subgraph WP["Talos Worker Plane"]
W3[wnode-tsys3<br/>NVMe · 28GB]
W5[wnode-tsys5<br/>NVMe · 32-64GB]
W6[wnode-tsys6<br/>NFS-HDD · 64-96GB]
W7[wnode-tsys7<br/>NFS-HDD · 96-128GB]
W9[wnode-tsys9<br/>local-SSD · 4-8GB]
end
ETCD[(etcd<br/>raft, mTLS)]
REG[(Harbor registry<br/>on D3 SSD · tsys5)]
BASTION[tailscale-router VM<br/>subnet router]
end
subgraph TAILNET["Tailscale overlay"]
OP[Operator devices]
end
subgraph CLOUDRON["Cloudron production — Reston VA"]
KC[Keycloak OIDC IdP]
end
C1 ---|mTLS LAN| ETCD
C2 ---|mTLS LAN| ETCD
C3 ---|mTLS LAN| ETCD
CP -->|pull images| REG
WP -->|pull images| REG
OP -->|Talos API :50000<br/>via subnet route| BASTION
BASTION -.->|LAN| CP
CP -->|OIDC| KC
WP -->|OIDC| KC
classDef talos fill:#1a1a2e,stroke:#e94560,color:#fff
classDef infra fill:#0f3460,stroke:#e94560,color:#fff
classDef external fill:#16213e,stroke:#533483,color:#fff
class CP,WP,ETCD talos
class REG,BASTION infra
class OP,KC,EXTERNAL external
```
### Design principles
1. **LAN-only cluster nodes.** Zero internet egress from cnodes/wnodes.
Strongest posture for ITAR/classified.
2. **Admin via Tailscale subnet router.** Existing `tailscale-router` VM
advertises the cluster LAN subnet. Operator reaches Talos API from
anywhere.
3. **Local-first storage.** Cnodes boot from local disk (no NFS dependency
for etcd). Workers boot from local disk where available; NFS for bulk
data only.
4. **Per-tenant vcluster.** Workload isolation via virtual clusters on top
of the Talos host cluster.
5. **OIDC everywhere.** Talos API and Kubernetes API both trust Keycloak
tokens. No long-lived static credentials for humans.
---
## 2. Control Plane
### 2.1 Recommendation: 3 cnodes (down from 5)
| Option | Quorum | Failure tolerance | etcd write cost | Resource cost |
|--------|--------|-------------------|-----------------|---------------|
| **3 cnodes** (recommended) | 2 of 3 | Tolerates **1** failure | Lower (faster commits) | 3 × (2c/4GB/32GB) = 6c / 12GB |
| 5 cnodes (current plan) | 3 of 5 | Tolerates **2** failures | Higher | 5 × (2c/4GB/32GB) = 10c / 20GB |
For a solo-operated R&D cluster, **3 cnodes is the HA standard**. The
failure-tolerance jump from 1→2 rarely justifies the doubled etcd write
quorum and the extra 4GB/2c per cnode. The 2 freed VM slots (and their
host capacity) are better spent on tenant worker allocations.
**Caveat:** if your ITAR/classified accreditation counsel mandates 2-failure
tolerance on the control plane, keep 5. Otherwise 3.
### 2.2 Cnode placement
Per [`../proxmox/K8S.md`](../proxmox/K8S.md) §4.3, cnodes should use
**local-lvm boot disks** so etcd has no NFS dependency. Concrete placement:
| cnode | Host | Boot disk | Type | Why |
|-------|------|-----------|------|-----|
| cnode1 | tsys9 | local-lvm (PNY CS900 SSD) | LOCAL-SSD | Fastest available for etcd. |
| cnode2 | tsys9 | local-lvm (PNY CS900 SSD) | LOCAL-SSD | Same host, different disk OK (host failure is the failure domain, not disk). |
| cnode3 | tsys1 | local-lvm (HDD) | LOCAL-HDD | Host diversity. Slower than SSD but no NFS hop. |
**Quorum survival:**
| Failure | cnodes lost | Quorum OK? |
|---------|-------------|------------|
| tsys9 host dies | cnode1 + cnode2 | NO (1 of 3) — would need 4th cnode elsewhere, or accept this risk. |
| tsys1 host dies | cnode3 | YES (2 of 3) |
| Any storage server dies | 0 | YES (3 of 3) — local disks unaffected |
**Refinement:** putting both SSD cnodes on tsys9 means tsys9 host failure
loses quorum. Alternative: spread cnodes across 3 different hosts. See
"open question" at end of this section.
### 2.3 Machine config strategy
Talos nodes are configured by **machine configs** (YAML). Two flavors:
- **`controlplane.yaml`** — for cnodes. Enables etcd, scheduler,
controller-manager, API server.
- **`worker.yaml`** — for wnodes. Joins cluster, runs kubelet + containerd.
Strategy for this cluster:
1. **One shared `talosconfig`** (client identity) — stored in 1Password
and in the Proxmox Backup Server (PBS) encrypted backup target.
2. **Per-node machine config patches** — small patches on top of the base
`controlplane.yaml` / `worker.yaml` for node-specific settings:
- Hostname
- Network interface + IP (DHCP or static — recommend static for cnodes)
- Schematic image digest (pinned Talos version)
- System extensions (e.g., `tailscale` — only if running Pattern A
instead of recommended Pattern C)
3. **All machine configs in Git** under a future `k8s/talos-configs/`
directory. Secrets are templated in at apply-time from 1Password / sops.
```mermaid
flowchart LR
BASE[base controlplane.yaml] --> PATCH1[patch: cnode1]
BASE --> PATCH2[patch: cnode2]
BASE --> PATCH3[patch: cnode3]
BASEW[base worker.yaml] --> PATCHW[patch: per-wnode]
PATCH1 --> APPLY1[talosctl apply]
PATCH2 --> APPLY2[talosctl apply]
PATCH3 --> APPLY3[talosctl apply]
PATCHW --> APPLYW[talosctl apply]
```
### 2.4 Open question: cnode host spread
If you accept "tsys9 failure = quorum loss" as a tolerable risk (solo R&D
cluster, tsys9 is brand-new hardware, single digit annual failure
probability), the layout in §2.2 is fine.
If not, alternative spread across 3 hosts:
| cnode | Host | Boot disk |
|-------|------|-----------|
| cnode1 | tsys9 | local-lvm SSD |
| cnode2 | tsys1 | local-lvm HDD |
| cnode3 | tsys3 | local-lvm NVMe |
tsys3's local-lvm is **349 GB Samsung PM961 NVMe** (per
[`../proxmox/PROJECT.md`](../proxmox/PROJECT.md) §3.3) — currently unused,
would make an excellent etcd disk.
**This 3-host spread survives any single host failure with quorum intact.
Recommended.**
---
## 3. Network Topology
### 3.1 Zones
```mermaid
flowchart TB
subgraph INTERNET["Internet"]
FIBER[Gigabit symmetric fiber]
end
subgraph RESLAN["Residence LAN 192.168.x.x/24"]
subgraph CLUSTERNET["Cluster nodes — LAN only, no egress"]
CNODES[Cnodes 192.168.3.x]
WNODES[Wnodes 192.168.3.x]
end
BASTION[tailscale-router<br/>192.168.3.x + 100.x.x.x]
REG[Harbor registry<br/>192.168.3.x]
STORAGE[NFS servers<br/>tsys4, tsys5]
end
subgraph TSNET["Tailscale 100.x.x.x/8"]
OPS[Operator devices]
KC[Keycloak<br/>via Cloudron prod]
end
FIBER --> BASTION
BASTION <-. subnet route .-> CLUSTERNET
OPS -->|TCP 50000 talos API| BASTION
BASTION -->|LAN forward| CNODES
CNODES -->|LAN mTLS| WNODES
CNODES -->|OIDC HTTPS| KC
WNODES -->|pull images| REG
WNODES -->|bulk data IO| STORAGE
CNODES -->|pull images| REG
```
### 3.2 Address plan (suggested)
Reserve a small contiguous block in the residence LAN for cluster nodes:
| Role | Range | Count |
|------|-------|-------|
| Cnodes | `192.168.3.31-33` | 3 |
| Wnodes | `192.168.3.41-49` | up to 9 (1 per Proxmox host + spare) |
| Bastion | existing `tailscale-router` | 1 |
| Registry | `192.168.3.50` | 1 (Harbor) |
**Static IPs are strongly recommended for cnodes** (etcd cluster membership
is hostname-based; stable IPs make `talosctl` targeting simple). Workers
can DHCP.
### 3.3 Firewall posture
Each cnode/wnode has:
- **Ingress** from LAN: TCP 50000 (Talos API), TCP 6443 (Kubernetes API on
cnodes only), plus CNI ports (varies by CNI — see §4).
- **Ingress** from Tailscale: none (cluster nodes are not on Tailscale).
- **Egress:** LAN-only. Block all RFC1918-external traffic at the perimeter
firewall for these IPs. ITAR workloads must not be able to phone home.
The bastion runs Tailscale and forwards TCP 50000/6443 to cluster nodes
via the subnet route.
---
## 4. CNI: Cilium
**Recommendation: Cilium** (eBPF-based CNI).
| Property | Why it matters here |
|----------|---------------------|
| **NetworkPolicy** (incl. L7) | Per-tenant isolation rules in vclusters. |
| **Node-to-node encryption** | WireGuard-based IPSec replacement. All inter-node pod traffic is encrypted on the wire. **Important for ITAR tenants.** |
| **Hubble** | Observable flows — forensic record of which pod talked to which. Useful for compliance evidence. |
| **No kube-proxy** | Cilium replaces kube-proxy with eBPF. Smaller attack surface on each node. |
| **Talos integration** | First-class. Talos docs document the install path. |
Cilium is deployed via Helm after cluster bootstrap. Node-to-node encryption
enabled. Default-deny NetworkPolicy applied per namespace.
---
## 5. Identity and Trust
### 5.1 Trust flow
```mermaid
sequenceDiagram
autonumber
participant Human as Operator
participant TAIL as Tailscale
participant BAST as Bastion
participant TALOS as Talos API :50000
participant KC as Keycloak (Cloudron)
participant K8S as Kubernetes API :6443
Human->>TAIL: Authenticate (device + SSO)
TAIL-->>Human: Tailnet IP
Human->>BAST: Reach bastion via tailnet
BAST->>TALOS: Forward to LAN node :50000
Human->>KC: OIDC login (browser)
KC-->>Human: Bearer token (short-lived)
Human->>TALOS: talosctl (mTLS with client cert)
Human->>K8S: kubectl --oidc (Keycloak token)
K8S->>KC: Validate token (introspection)
KC-->>K8S: Valid + claims
K8S-->>Human: Authorized response
```
### 5.2 Two distinct identity layers
| Layer | Mechanism | Audience |
|-------|-----------|----------|
| **Talos API** (node ops) | Mutual TLS with client certificate generated from the Talos secrets bundle. | Operators (automation + humans). |
| **Kubernetes API** (kubectl) | OIDC bearer token from Keycloak. RBAC maps group claims → ClusterRole. | Humans. Service accounts use projected tokens (no OIDC). |
The **Talos secrets bundle** is the root of trust for the cluster. Lose it
and you cannot operate the cluster; an attacker with it owns the cluster.
Storage:
1. **Primary:** 1Password (or equivalent) — operator-accessible.
2. **Backup:** PBS encrypted backup target on tsys4 (existing infra).
3. **NOT in Git.** Machine configs go in Git; secrets stay out.
### 5.3 Keycloak client configuration
On Cloudron-hosted Keycloak, register a client `pfv-k8s-talos`:
- **Authorization Code + PKCE flow** (no implicit, no password).
- **Redirect URIs:** `http://localhost:8000` (kubectl oidc-login) + Sidero
Omni/Rancher URLs if/when those are added.
- **Group claims:** `k8s-admin`, `k8s-readonly`, `k8s-tenant-itar`,
`k8s-tenant-rackrental`, etc. These map to Kubernetes RBAC `ClusterRoleBinding`.
---
## 6. Tenant Isolation (vcluster)
### 6.1 Why vcluster
[vcluster](https://www.vcluster.com/) runs a **virtual Kubernetes control
plane** (API server, scheduler, controller-manager, etcd) inside a namespace
of the host cluster. Tenant workloads run on the host's worker nodes but
are isolated by:
- Separate API server (tenant cannot see host cluster objects).
- Separate RBAC and admission control.
- Separate network policies (per-namespace).
- Separate resource quotas.
This aligns with the user's per-tenant plan from
[`../proxmox/K8S.md`](../proxmox/K8S.md) §1.
### 6.2 Tenant registry
| Tenant | Compliance | Workload example | vcluster name |
|--------|-----------|------------------|---------------|
| RackRental | None (internal R&D) | containerlab topology tests | `vc-rackrental` |
| Suborbital non-ITAR | EAR/ITAR-aware but unclassified | Payload telemetry processing | `vc-suborbital-open` |
| Suborbital ITAR | **ITAR-controlled** | Firmware build for USML items | `vc-suborbital-itar` |
| Starting Line Productions | Commercial | Customer media pipeline | `vc-slp` |
```mermaid
flowchart TB
subgraph HOST["Talos host cluster"]
CP[Host control plane<br/>3 cnodes · etcd · Keycloak RBAC]
subgraph NS["Host cluster namespaces"]
NS_RR[ns: vc-rackrental]
NS_SO[ns: vc-suborbital-open]
NS_SI[ns: vc-suborbital-itar]
NS_SLP[ns: vc-slp]
end
end
subgraph VRR["vcluster: vc-rackrental"]
API_RR[k8s API + etcd]
end
subgraph VSO["vcluster: vc-suborbital-open"]
API_SO[k8s API + etcd]
end
subgraph VSI["vcluster: vc-suborbital-itar"]
API_SI[k8s API + etcd]
end
subgraph VSLP["vcluster: vc-slp"]
API_SLP[k8s API + etcd]
end
CP --> NS_RR & NS_SO & NS_SI & NS_SLP
NS_RR --> API_RR
NS_SO --> API_SO
NS_SI --> API_SI
NS_SLP --> API_SLP
classDef itar fill:#3a0000,stroke:#ff0000,color:#fff
class NS_SI,API_SI itar
```
### 6.3 ITAR enforcement at host layer
For the ITAR tenant (`vc-suborbital-itar`), enforce additional host-layer
controls:
- **Node taint** `workload=itar:NoSchedule` on worker nodes dedicated to
ITAR workloads (subset of wnodes, marked in node labels).
- **NetworkPolicy** default-deny egress for the `vc-suborbital-itar`
namespace. Allow only explicit destinations (registry, NFS for ITAR
data tier, Keycloak).
- **Storage isolation:** ITAR PVCs target a dedicated NFS export (e.g.,
`D3-itar` on tsys5) that no other tenant can mount.
- **Audit:** Hubble flows + auditd on the host worker nodes capture all
access to ITAR data.
Rancher (or Sidero Omni) sits above this, presenting each tenant's
vcluster as a separate "cluster" in its UI, with Keycloak SSO gating
access per tenant group claim.
---
## 7. Storage Integration
Per [`../proxmox/K8S.md`](../proxmox/K8S.md) §6. Three StorageClasses:
| StorageClass | Provisioner | Backing | Speed | Use |
|--------------|------------|---------|-------|-----|
| `local-fast` | local-path | wnode local disk (NVMe/SSD/HDD depending on host) | 100-3500 MB/s | Container runtime, scratch, ephemeral |
| `nfs-hdd` | nfs.csi.k8s.io | tsys4 D2/D5, tsys5 S1-S4 | 80-120 MB/s | Bulk data, weather/GIS datasets |
| `nfs-ssd` | nfs.csi.k8s.io | tsys5 D3, tsys5 T5-SSD | 200-400 MB/s | Latency-sensitive persistent data |
### 7.1 CSI driver notes
- **NFS CSI:** [`csi-driver-nfs`](https://github.com/kubernetes-csi/csi-driver-nfs)
(CNCF sandbox). Deploys via Helm. Each StorageClass points at a specific
NFS server + base export path.
- **local-path:** Rancher Local Path Provisioner. Single-binary, deploys
with one manifest. Uses wnode's kubelet root dir.
### 7.2 ITAR data isolation
The ITAR tenant should target a dedicated NFS export, not shared
`nfs-hdd`. Recommended:
- Allocate `S4` on tsys5 (currently 99% empty, 435 GB free) as
`nfs-itar` StorageClass. Mountable only from `vc-suborbital-itar`
namespace via RBAC + NetworkPolicy.
---
## 8. Local Image Registry
### 8.1 Recommendation: Harbor on D3 SSD
D3 SSD (tsys5, post-Friday SAS relocation) is 445 GB and 99% empty. Use it
for a **Harbor** instance:
| Property | Value |
|----------|-------|
| **Storage** | D3 SSD on tsys5 (NFS export, fast tier) |
| **VM** | New VM `pfv-registry` on tsys5, local-nonprod boot, D3 data |
| **Function** | (a) Pull-through cache for Docker Hub / Quay / gcr.io<br/>(b) Host private images<br/>(c) Cosign image signing verification |
| **Exposure** | LAN-only. `192.168.3.50:443`. Not exposed to internet. |
### 8.2 Pull-through cache benefit
Cluster nodes have zero internet egress (per §3.3). Without a local cache,
image pulls fail. With Harbor as a pull-through cache:
```mermaid
sequenceDiagram
WNODE->>HARBOR: docker pull nginx:1.25
alt cache hit
HARBOR-->>WNODE: layer bytes (LAN-speed)
else cache miss
HARBOR->>DOCKERHUB: pull nginx:1.25 (egress)
DOCKERHUB-->>HARBOR: layer bytes
HARBOR-->>WNODE: layer bytes (cached for next time)
end
```
Cluster nodes pull from Harbor over LAN (gigabit). Harbor is the only
machine in the cluster with container-registry internet egress, and that
egress can be locked to specific upstreams (docker.io, quay.io, gcr.io,
ghcr.io).
### 8.3 Supply-chain integrity (future)
Harbor + Cosign lets you require that all images deployed to the ITAR
tenant are signed by a trusted key. This is a strong ITAR/CISA-attestation
control. Implementation deferred to a later session.
---
## 9. Bootstrap Procedure
### 9.1 One-time setup
```mermaid
sequenceDiagram
autonumber
participant OP as Operator
participant GIT as Git repo
participant ONEPW as 1Password
participant PBS as PBS (tsys4)
OP->>GIT: Clone PFVCluster repo
OP->>ONEPW: Generate Talos secrets bundle (offline)
ONEPW-->>OP: secrets.yaml
OP->>PBS: Backup secrets.yaml (encrypted)
OP->>GIT: Write machine configs (no secrets)
```
### 9.2 Provision first cnode (bootstrap)
```mermaid
sequenceDiagram
autonumber
participant OP as Operator
participant PX as Proxmox host
participant C1 as cnode1
participant ETCD as etcd (new)
OP->>PX: qm create VM (Talos QCOW2 disk, local-lvm)
OP->>PX: qm start VMID
C1->>C1: Boots Talos (no config yet, "maintenance mode")
OP->>C1: talosctl apply --patch cnode1.yaml (with secrets)
C1->>C1: Applies config, restarts services
OP->>C1: talosctl bootstrap
C1->>ETCD: Initialize single-node raft
ETCD-->>C1: ready
OP->>C1: talosctl kubeconfig (fetch admin kubeconfig)
OP->>C1: talosctl etcd snapshot (initial backup → PBS)
```
### 9.3 Add second and third cnodes
```mermaid
sequenceDiagram
autonumber
participant OP as Operator
participant PX as Proxmox host
participant C2 as cnode2
participant C3 as cnode3
participant C1 as cnode1 (existing)
OP->>PX: qm create + start cnode2 VM
C2->>C2: Boots Talos maintenance mode
OP->>C2: talosctl apply --patch cnode2.yaml
C2->>C1: Join etcd cluster
OP->>PX: qm create + start cnode3 VM
C3->>C3: Boots Talos maintenance mode
OP->>C3: talosctl apply --patch cnode3.yaml
C3->>C1: Join etcd cluster
Note over C1,C3: etcd now has 3/3 members → HA quorum
```
### 9.4 Post-bootstrap cluster configuration
Once 3 cnodes are up and joined:
1. **Install Cilium** (CNI) via Helm. Enable node-to-node encryption.
2. **Install CSI drivers** — nfs-csi + local-path provisioner.
3. **Create StorageClasses** — `local-fast`, `nfs-hdd`, `nfs-ssd`.
4. **Deploy Harbor** on the `pfv-registry` VM, exposed at `192.168.3.50`.
5. **Configure Kubernetes API OIDC** — Keycloak client (§5.3).
6. **Apply default-deny NetworkPolicy** in all namespaces.
7. **Install vcluster CLI** + create 4 tenant vclusters (§6).
8. **First etcd snapshot** + automated daily snapshot cron → PBS.
### 9.5 Add workers
Workers are simpler (no etcd):
```mermaid
sequenceDiagram
OP->>PX: qm create + start wnode-X VM (Talos QCOW2)
WNODE->>WNODE: Boots maintenance mode
OP->>WNODE: talosctl apply --patch worker-X.yaml
WNODE->>C1: Kubelet registers with API server
C1-->>WNODE: Approved (auto via bootstrap token)
Note over WNODE: Joins cluster, becomes Ready
```
---
## 10. Disaster Recovery
### 10.1 Backup strategy
| Artifact | Frequency | Storage | Tool |
|----------|-----------|---------|------|
| **Talos secrets bundle** | Once (regen only on rotation) | 1Password + PBS (encrypted) | Manual |
| **Machine configs** | Continuous (Git) | Git remote + PBS | Git |
| **etcd snapshot** | Daily + before each change | PBS (tsys4 SMR target, 4.3 TB free) | `talosctl etcd snapshot` |
| **vcluster etcd** | Daily per vcluster | PBS | `kubectl exec ... etcdctl snapshot` |
| **Harbor metadata** | Daily | PBS | Harbor built-in backup |
### 10.2 Restore scenarios
**Lost 1 cnode (e.g., tsys9 disk failure):**
1. Provision new VM on tsys9 (or other host with local SSD).
2. Apply cnode2 machine config patch.
3. New cnode joins etcd, syncs state from survivors.
4. Quorum was never lost (2 of 3 alive throughout).
**Lost 2 cnodes simultaneously (quorum lost):**
1. Use surviving cnode's etcd snapshot.
2. Provision 3 new cnode VMs.
3. On first: `talosctl bootstrap --recover-from=snapshot.db`.
4. Join other 2 cnodes.
5. Workers reconnect automatically once API server is back.
**Total cluster loss (all 3 cnodes):**
1. Restore from latest PBS etcd snapshot.
2. Provision new cnode VMs.
3. `talosctl bootstrap --recover-from=snapshot.db`.
4. Re-join workers.
5. Verify tenant vclusters restored.
### 10.3 Recovery time objectives
| Scenario | RTO | RPO |
|----------|-----|-----|
| Single cnode failure | < 30 min | 0 (no data loss) |
| Quorum loss (2 cnodes) | < 2 hours | ≤ 24 hours (last snapshot) |
| Total cluster loss | < 4 hours | ≤ 24 hours |
---
## 11. Migration from Current State
### 11.1 Current state
- 5 cnode VMs exist (Debian stock + Tailscale).
- **No k3s deployed yet.** Cluster was never bootstrapped.
- 6 wnode VMs exist (some stopped).
- No workloads running in k8s.
### 11.2 Migration: clean cutover (not a migration)
Since there is no etcd data and no workloads to preserve, the path is a
**clean rebuild**:
| Phase | Action | Risk |
|-------|--------|------|
| **0. Prep** | Generate Talos secrets. Store in 1Password + PBS. Write machine configs to Git. | Low. |
| **1. Bootstrap 3 new cnodes** | Build 3 NEW Talos cnode VMs (not the existing 5). Use local-lvm boot disks (tsys9 × 2, tsys3 × 1 per §2.4 recommended spread). | Low. Existing Debian cnodes can keep running idle. |
| **2. Configure cluster** | Install Cilium, CSI, StorageClasses, OIDC, Harbor. | Low. |
| **3. Add workers** | Re-image existing wnode VMs as Talos, or build new ones. | Low. No workloads to drain. |
| **4. Decommission old Debian cnodes** | Once cluster is stable, shut down + delete the 5 old Debian cnode VMs. | Low. |
| **5. Tenant vclusters** | Stand up per-tenant vclusters. | Medium (policy tuning). |
### 11.3 Open dependency: Friday hardware work
Phases 1-2 require:
- **tsys3 local-lvm available.** Per
[`../proxmox/PROJECT.md`](../proxmox/PROJECT.md) §3.3, tsys3 has 349 GB
free NVMe local-lvm. Currently unused. **Ready.**
- **tsys9 local-lvm available.** 136 GB PNY CS900 SSD. **Ready.**
- **D3 SSD relocated to tsys5 SAS.** Currently USB on tsys4. Per
[`../proxmox/TODO.md`](../proxmox/TODO.md) §2, scheduled for Friday.
Harbor depends on D3 being available on tsys5.
Bootstrap of the cnodes does NOT depend on Friday hardware work. Only the
Harbor registry does.
---
## Appendix: Open questions for next session
1. **Confirm 3 vs 5 cnodes** (§2.1). Recommendation: 3.
2. **Confirm cnode host spread** (§2.4). Recommendation: 3-host spread
(tsys9, tsys1, tsys3).
3. **Static IPs for cnodes** (§3.2). Recommendation: yes, `192.168.3.31-33`.
4. **Rancher vs Sidero Omni** for cluster management UI. Both viable.
Defer until cluster is up.
5. **Subnet router ACL approval** on Tailscale admin console (§3). Needs
approval of `192.168.3.0/24` route advertisement.
6. **ITAR worker node subset** (§6.3). Which wnodes are tainted for ITAR?
Recommendation: tsys6 + tsys7 (heaviest hosts, NFS-only boot) as
general capacity; tsys3 + tsys5 (local fast storage) reserved for
non-ITAR HPC.
k8s/docs/DISTRO-DECISION.md
+9 -187
View File
@@ -1,188 +1,10 @@
# Distro Decision: Talos Linux vs k3s # k8s/docs/DISTRO-DECISION.md
> **Recommendation: Talos Linux.** > **Documentation moved to Discourse — the canonical source of truth.**
> The k3s-on-Debian plan was sound before the ITAR/classified requirement >
> entered scope. Once classified workloads are on the table, Talos's > **Talos vs k3s distro analysis and decision**
> immutable, API-only, measured-boot-capable posture is materially easier >
> to certify and defend. > **Read it here:** https://community.turnsys.com/t/305
>
**Last updated:** 2026-07-28 > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
> Do not update content here — edit the Discourse wiki topic instead.*
---
## 1. Decision context
| Factor | Constraint |
|--------|-----------|
| **Workload class** | R&D + RackRental (containerlab) + **ITAR / classified** suborbital workloads + commercial (Starting Line Productions) |
| **Compliance drivers** | ITAR (USML categories), possible classified handling (NIST 800-171, CNSSI 1253) |
| **Hardware** | 7 standalone Proxmox hosts (no `pvecm`), managed via PDM. Live migration NOT available — disk moves via Proxmox "Storage Migrate" UI. |
| **Network** | Gigabit symmetric fiber to residence. LAN-only cluster traffic desirable. Tailscale already in use (overlay for admin access). |
| **Current cnode state** | Stock Debian VMs joined to Tailscale. **No k8s distribution has been deployed yet.** Clean cutover possible. |
| **Operations** | Solo founder. Must be reproducible from Git, low-touch, low-debug-overhead. |
---
## 2. Head-to-head comparison
### 2.1 ITAR / classified posture
| Property | Talos Linux | k3s on Debian |
|----------|-------------|---------------|
| **Node OS mutability** | Immutable rootfs (squashfs, read-only). Reboot returns to known-good state. | Mutable. `apt install`, file edits persist. |
| **Shell / SSH access** | **None.** No SSH daemon, no shell, no `kubectl debug node` shell. | Full SSH + bash. STIG hardening reduces (does not eliminate) attack surface. |
| **Operational surface** | Single gRPC API (mTLS, signed certs, audit log) on port 50000. | SSH + kubelet API + etcd API + package manager + cron + systemd + userland. |
| **Measured boot** | Supported. TPM attestation can prove the node booted the signed Talos image you pinned. | Possible but bolt-on; auditors will ask why you didn't disable the bootloader first. |
| **Configuration provenance** | Entire node state is a YAML machine config in Git. `talosctl apply` is the only mutation path. | Config drift via SSH edits, package updates, manual service restarts. STIG/CAT-IV findings multiply. |
| **Supply chain** | Every Talos release is a signed artifact (cosign). Pin by image digest. | Debian package provenance is good but the surface is enormous (~30K packages in a base install). |
| **Forensic readiness** | API log + kernel log + Talos event log = sufficient for "what ran, when, with what config." | Same possible but requires explicit configuration to be trustworthy. |
| **STIG / CIS conformance** | Intrinsically close. Talos publishes CIS benchmark results per release. | Requires running SCAP-STIG (already in this repo) and remediating findings continuously. |
**Bottom line:** For classified workloads, an auditor's first question is
"how do you prevent unauthorized changes to a node?" Talos's answer is
"the OS is immutable and the only path is a signed API call." k3s's answer
is"SSH is locked down and we scan with STIG." The first is structurally
stronger; the second is operationally maintained.
### 2.2 Operational considerations
| Property | Talos | k3s |
|----------|-------|-----|
| **Familiarity** | New model (`talosctl apply`, no SSH). Learning curve. | Stock Debian + k3s binary. Familiar. |
| **Debugging** | `talosctl logs`, `talosctl dmesg`, `talosctl dashboard`. No shell. | `ssh`, `journalctl`, `crictl`. Full shell. |
| **Tailscale integration** | System extension (`siderolabs/tailscale`). Stable since Talos 1.3. | Native — `apt install tailscale`. Zero friction. |
| **Backup / DR** | `talosctl etcd snapshot` (one command). Cluster can be restored from snapshot + machine configs. | DIY (`etcdctl snapshot` + manual cert management). |
| **Upgrades** | `talosctl upgrade` — atomic, automated rollback on health-check failure. | Manual: drain, `k3s` package update, reboot, uncordon. |
| **Proxmox compatibility** | QCOW2 image boots natively on KVM/QEMU. virtio-net, virtio-scsi, virtio-rng all supported. | Same. |
| **Ecosystem maturity** | Production-grade. Sidero (the company) offers Omni (managed control plane for Talos). | Production-grade. Rancher (SUSE) backs it. |
### 2.3 Cost of choosing Talos over the existing k3s plan
The cnodes are currently **stock Debian VMs joined to Tailscale**. Critically,
**no k3s cluster has been deployed yet** — k3s was only the *plan*. Therefore:
- **No etcd data to migrate.** Clean cutover, not a migration.
- **No workloads to drain.** The cluster is empty.
- **Cnode VMs get re-imaged** with Talos QCOW2 (or rebuilt from scratch —
either way it's a `qm` script, not a stateful migration).
- **Tailscale config shifts** from "installed via apt" to "Talos system
extension." (Or, per our recommendation in
[`ARCHITECTURE.md`](ARCHITECTURE.md) §3, **Tailscale moves off the cluster
nodes entirely** and onto the existing `tailscale-router` bastion as a
subnet router. Cluster nodes become LAN-only.)
**Net cost:** rebuilding 3 cnode VMs as Talos + writing ~200 lines of
machine config YAML. The hardening investment already encoded in
`provisioning/Modules/Security/` is **not wasted** — it still applies to
every non-cluster VM (netinfra, UCS, LibreNMS, SIEM, bastion, etc.). Only
the cnodes/wnodes move to Talos.
---
## 3. Tailscale compatibility (deep-dive)
Tailscale on Talos is well-supported but introduces a configuration dimension
worth being explicit about. Three patterns exist:
### Pattern A — Tailscale on every cluster node (what you have now, on Debian)
Each cnode/wnode runs `tailscaled` and joins the tailnet. Cluster nodes have
internet egress (to Tailscale DERP servers and for coordinate).
- **Talos implementation:** add `siderolabs/tailscale` system extension to
each machine config, configure `machine.network.interfaces`.
- **Pros:** Operator can hit any node's Talos API from any Tailscale device.
- **Cons:** Cluster nodes have internet egress. For ITAR workloads, this is a
finding (data exfiltration path).
### Pattern B — Tailscale on bastion only, SSH/API jump
Cluster nodes are LAN-only. Operator Tunnels to bastion (existing
`tailscale-router` VM), then runs `talosctl` from the bastion.
- **Pros:** Zero internet egress from cluster nodes.
- **Cons:** Two-step access. Bastion must run recent `talosctl`. Each operator
action originates from the bastion (auditable but clunky).
### Pattern C — Tailscale subnet router on bastion (recommended)
The existing `tailscale-router` VM advertises the cluster LAN subnet
(e.g. `192.168.3.0/24`) into the tailnet as a **subnet route**. Operator's
Tailscale client transparently routes cluster-bound traffic through the
bastion. From the operator's workstation, `talosctl --nodes 192.168.3.x`
"just works."
- **Pros:**
- Cluster nodes have **zero internet egress** (strongest ITAR posture).
- Operator UX is unchanged from direct LAN access.
- All access is mediated by Tailscale's identity + ACLs (already integrated
with your env).
- Audit trail lives in Tailscale + bastion logs.
- **Cons:**
- Bastion becomes a dependency for remote admin (LAN-local admin still
works without it).
- Must enable IP forwarding + subnet route approval in Tailscale ACLs.
**Recommendation: Pattern C.** Documented in
[`ARCHITECTURE.md`](ARCHITECTURE.md) §3.
---
## 4. Recommendation
**Deploy Talos Linux** as the k8s distribution for `pfv-k8s`.
### Justification
1. **Compliance posture is structural, not operational.** "Immutable,
API-only, measured-boot" is a property of Talos itself; "STIG-hardened"
is a property of how Debian is operated. The first is dramatically
easier to argue to an ITAR counsel or classified accreditation officer
(DSS, DCSA) than the second.
2. **Zero migration cost.** The k3s cluster was never deployed. Reimaging
3 cnodes with Talos is a `qm` script invocation, not a stateful
migration. The sunk cost of "we planned k3s" is **zero deployed state**.
3. **Operational headroom.** Talos's `etcd snapshot` + `upgrade --stage` +
`apply-mode auto` reduce solo-founder ops burden. k3s is simpler to
learn but more error-prone to operate at HA.
### Acknowledged tradeoffs
- **Learning curve.** The Talos mental model (`machine config` + `talosctl`)
replaces SSH + systemd. Expect a one-week ramp for comfortable daily ops.
- **No shell debugging.** When something breaks on a node, you cannot `ssh`
in. Mitigation: `talosctl logs/support` produces a support bundle
equivalent to a sosreport.
- **Hardware/module surprises.** Talos ships a curated kernel. Anything
beyond virtio + common NIC drivers needs a system extension. On Proxmox
VMs this is **not expected to be a problem** — virtio is the path.
- **Tailscale via system extension.** Adds one config dimension per node.
Mitigated by Pattern C (above), which removes Tailscale from cluster
nodes entirely.
### What we keep from the k3s mental model
- **Single binary on each node** semantics (Talos is conceptually similar).
- **`kubectl` workflow unchanged.** Talos exposes a standard Kubernetes
API. `kubectl`, `helm`, `kustomize` all work as-is.
- **Storage CSI choices** (`local-fast`, `nfs-hdd`, `nfs-ssd`) are
distro-independent.
---
## 5. What we are NOT deciding here
| Topic | Deferred to |
|--------|-------------|
| ETL tooling (GDAL/PostGIS/xarray/Dask) | Future session — affects StorageClass RWX/RWO design |
| HPC scheduler (Jobs/Argo/Volcano) | Future session — affects taint/label strategy |
| Per-tenant vcluster policy templates | Future session, post-bootstrap |
| Solar-aware scale-out hosts | Future capacity planning session |
| Container network plugin (CNI) details | Will be specified in ARCHITECTURE.md §4 — recommendation is Cilium (supports NetworkPolicy, BPF, and encrypted node-to-node traffic for ITAR tenants) |
---
## 6. Next step
Proceed to [`ARCHITECTURE.md`](ARCHITECTURE.md) for the control-plane
design, network topology, identity flow, and bootstrap procedure.
k8s/docs/README.md
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@@ -1,44 +1,10 @@
# Kubernetes Architecture & Build Plan # k8s/docs/README.md
> **Status:** Draft for review. Companion to [`../proxmox/K8S.md`](../proxmox/K8S.md) > **Documentation moved to Discourse — the canonical source of truth.**
> (which captured the storage/host analysis from the Proxmox audit). >
> This directory takes the next step: **which distro, how to build it, > **k8s docs index + TL;DR**
> how to operate it.** >
> **Read it here:** https://community.turnsys.com/t/305
**Last updated:** 2026-07-28 >
> *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
## Documents in this directory > Do not update content here — edit the Discourse wiki topic instead.*
| Document | Purpose |
|----------|---------|
| [`DISTRO-DECISION.md`](DISTRO-DECISION.md) | Talos vs k3s analysis. Recommendation: **Talos**, with rationale grounded in the ITAR/classified requirement. |
| [`ARCHITECTURE.md`](ARCHITECTURE.md) | Target architecture: control plane, network, identity, storage, tenant isolation. Mermaid diagrams included. |
## TL;DR
| Decision | Recommendation | Why |
|----------|----------------|-----|
| **Distro** | **k3s** (deployed) / **Talos** (for future ITAR) | k3s chosen for the regular R&D cluster now live on cnode1/2/3. Talos is the recommendation for when the ITAR/classified cluster comes online. |
| **Runtime** | **containerd** | Talos/k3s default. |
| **Cnode count** | **3** (deployed) | Standard HA. Tolerates 1 failure. |
| **Admin access** | **Tailscale (all nodes joined)** | Currently all cnodes are on Tailscale directly. For ITAR cluster, move to subnet-router pattern. |
| **Cluster network** | **Tailscale-only IPs** | All node-ip, advertise-address, TLS-SANs are 100.x Tailscale IPs. Zero LAN IPs in cluster state. |
| **Identity** | **OIDC to Keycloak** on Cloudron (production) | Future work. |
| **Multi-tenancy** | **vcluster** (per tenant) | Future work. |
| **Local registry** | **Harbor on D3 SSD** (tsys5, 445 GB free) | Future work. |
| **Storage classes** | `local-fast`, `nfs-hdd`, `nfs-ssd` | Per [`../proxmox/K8S.md`](../proxmox/K8S.md) §6. Future work. |
## What this directory does NOT cover (deferred)
- ETL tooling choice (GDAL/PostGIS/xarray/Dask) — affects RWX vs RWO design.
- HPC job scheduler (Jobs / Argo Workflows / Volcano) — affects taint/label strategy.
- vcluster per-tenant policy templates.
- Solar-aware scale-out (PowerEdge 19xx/2950 hosts) — capacity planning only.
These are tracked as future session work in [`../../STATUS.md`](../../STATUS.md).
## Open question for the user
1. **Cnode count: confirm 3 vs 5.** Recommendation is 3 (rationale in
[`ARCHITECTURE.md`](ARCHITECTURE.md) §2). If your ITAR counsel requires
2-failure tolerance on the control plane, keep 5.
netinfra/dhcp-migration.md
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# DHCP Migration: pfv-netboot → pfv-netinfra-01/02 # netinfra/dhcp-migration.md
**Date:** 2026-07-29 > **Documentation moved to Discourse — the canonical source of truth.**
**Status:** ✅ **COMPLETE** — both servers in `normal` failover state, 333 >
active leases load-balanced. Netboot DHCP stopped + disabled. > **DHCP migration to netinfra-01/02**
>
> **Safety nets:** pfv-netboot, pfv-netinfra-01/02, sectestbed-sandbox, and > **Read it here:** https://community.turnsys.com/t/306
> ultix-streaming all have static IPs (reachable via Tailscale even if DHCP >
> fails). sectestbed-sandbox snapshot `pre-dhcp-migration` exists as rollback. > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
> Do not update content here — edit the Discourse wiki topic instead.*
## Migration results (2026-07-29 17:20 CDT)
| Check | Result |
|-------|--------|
| netinfra-01 (primary) | `active`, failover `normal`, 244 active leases |
| netinfra-02 (secondary) | `active`, failover `normal`, 89 active leases |
| Failover partnership | "Both servers normal" — load-balanced at split=128 |
| DHCP test (sandbox) | Lease obtained from 192.168.3.252, IP 192.168.3.50/22 |
| DNS handed out | `192.168.3.252, 192.168.3.253` (netinfra pair) |
| NTP handed out | `192.168.3.252, 192.168.3.253` (netinfra pair) |
| Domain | `knel.net` |
| Gateway | `192.168.3.254` |
| Webmin | Port 10000 (SSL) on both nodes; DHCP module configured |
| Netboot DHCP | Stopped + disabled (won't start on reboot) |
| Netmask fix | Both nodes corrected /24 → /22 |
## 1. Current state (discovered 2026-07-29)
| | pfv-netboot (SOURCE) | pfv-netinfra-01 (TARGET primary) | pfv-netinfra-02 (TARGET secondary) |
|---|---|---|---|
| IP | 192.168.3.250/22 | 192.168.3.252/24 | 192.168.3.253/24 |
| isc-dhcp-server | 4.4.3, **active** | NOT installed | NOT installed |
| Webmin | 2.652 (port 10000, SSL) | NOT installed | NOT installed |
| DHCP leases | **532 active** | — | — |
| DHCP config | `/etc/dhcp/dhcpd.conf` | — | — |
**Source DHCP config summary:**
- Subnet: `192.168.0.0/22` (covers .0.x/.1.x/.2.x/.3.x)
- Pool range: `192.168.0.1 — 192.168.3.200`
- Router/GW: `192.168.3.254`
- DNS: `192.168.3.250` (netboot itself — **changing to 252/253**)
- Domain: `knel.net`
- Lease times: 600s default, 7200s max
- DDNS: `ddns-update-style none` (globally disabled)
- ~37 host reservations (MAC → fixed IP)
- 3 global-scope host declarations (outside subnet)
## 2. What changes in the migrated config
| Setting | Old (netboot) | New (netinfra) | Why |
|---------|--------------|----------------|-----|
| DNS servers handed out | `192.168.3.250` | `192.168.3.252, 192.168.3.253` | Point clients at the netinfra Pi-hole pair (netboot will be decommissioned) |
| Failover | none (single server) | ISC DHCP failover-peer | Primary/secondary HA |
| DHCP interface | `eth0` | `ens18` | Different NIC name on netinfra VMs |
| Netmask on servers | /22 | **fix to /22** (currently /24) | Match the /22 network |
Everything else (subnet, pool range, reservations, lease times, domain) stays
identical. The host reservation list is copied verbatim.
## 3. Configs prepared
| File | Destination |
|------|-------------|
| [`dhcp/dhcpd-primary.conf`](dhcp/dhcpd-primary.conf) | `/etc/dhcp/dhcpd.conf` on netinfra-01 |
| [`dhcp/dhcpd-secondary.conf`](dhcp/dhcpd-secondary.conf) | `/etc/dhcp/dhcpd.conf` on netinfra-02 |
Both are identical except for the `failover peer` block (primary vs secondary).
## 4. Execution sequence
### Phase 1 — pre-flight (non-disruptive)
1. **Snapshot sectestbed-sandbox** (VMID 6000 on tsys5) — rollback point
2. **Fix netmask** on netinfra-01/02: `/24` → `/22` in `/etc/network/interfaces`
(then `ifdown ens18 && ifup ens18`, or `systemctl restart networking`)
3. Verify Tailscale still reachable after netmask change
### Phase 2 — install prerequisites (non-disruptive, nothing serving yet)
On **both** netinfra-01 and netinfra-02:
1. `apt-get update && apt-get install -y isc-dhcp-server`
2. Install Webmin via official setup script
3. Copy `dhcpd-{primary,secondary}.conf` → `/etc/dhcp/dhcpd.conf`
4. Write `/etc/default/isc-dhcp-server` with `INTERFACESv4="ens18"`
5. Syntax check: `dhcpd -t -cf /etc/dhcp/dhcpd.conf`
6. **Do NOT start the DHCP service yet**
### Phase 3 — cutover (the critical moment)
**Goal:** minimize the DHCP gap. Existing clients hold valid leases for 600
seconds — they won't notice a brief outage.
1. **Stop netboot DHCP:** `ssh netboot 'sudo systemctl stop isc-dhcp-server'`
2. **Immediately start netinfra-01:** `systemctl start isc-dhcp-server`
3. **Immediately start netinfra-02:** `systemctl start isc-dhcp-server`
4. **Verify failover partnership:** check `journalctl -u isc-dhcp-server` on both
— look for "failover peer pfv-dhcp: I move from recover to recover-done"
5. Wait ~10 seconds for lease sync
### Phase 4 — test
1. On sectestbed-sandbox: edit `/etc/network/interfaces` to DHCP
2. `dhclient -r` (release) then `dhclient` (request new lease)
3. Verify IP assigned, correct DNS, correct gateway
4. If fails: `qm rollback 6000 <snapshot>` and debug
5. If succeeds: change back to static (sandbox's normal config)
### Phase 5 — cleanup
1. **Disable netboot DHCP:** `ssh netboot 'sudo systemctl disable isc-dhcp-server'`
2. Verify Webmin DHCP module visible at `https://192.168.3.252:10000`
3. Document + commit
## 5. Failover mechanics (reference)
ISC DHCP failover uses a TCP connection on port **647** between the two servers.
- **Primary** owns the pool initially and can assign new leases immediately.
- **Secondary** enters `recover` state, syncs the lease database from primary,
then transitions to `recover-done` → `normal`.
- If primary dies, secondary continues serving after the MCLT timeout (600s).
- If secondary dies, primary continues serving alone.
- **split 128** = load balance 50/50 (primary handles even hashes, secondary odd).
- Host reservations (fixed-address) are NOT subject to failover — both servers
can independently assign reserved IPs.
netinfra/dns-cluster-setup/README.md
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# Technitium DNS Cluster Setup # netinfra/dns-cluster-setup/README.md
> **Redmine:** [#357](https://projects.knownelement.com/issues/357) (deployment, closed) > **Documentation moved to Discourse — the canonical source of truth.**
>
Replicates the production Technitium DNS Server from `tailscale-router` to the > **Technitium DNS cluster setup**
`pfv-netinfra-01/02` pair and configures them as a primary/secondary cluster >
with automatic zone transfers. > **Read it here:** https://community.turnsys.com/t/306
>
## Architecture > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
> Do not update content here — edit the Discourse wiki topic instead.*
```
tailscale-router (PRODUCTION — READ ONLY)
└─ tsys-dns container (technitium/dns-server)
└─ 124 zones (knel.net + reverse DNS)
└─ Users + 2FA in auth.config
│
docker cp (export)
│
▼
┌─ pfv-netinfra-01 (192.168.3.252) ──── PRIMARY ──────────┐
│ tsys-dns container (Technitium on :5300) │
│ pihole container (Pi-hole on :53 → Technitium :5300) │
│ All zones are Primary │
│ Zone transfer allowed from 192.168.3.253 │
└──────────────────────────────────────────────────────────┘
│
AXFR / IXFR + NOTIFY (DNS zone transfer, port 5300)
│
▼
┌─ pfv-netinfra-02 (192.168.3.253) ─── SECONDARY ────────┐
│ tsys-dns container (Technitium on :5300) │
│ pihole container (Pi-hole on :53 → Technitium :5300) │
│ All zones are Secondary (AXFR from 01) │
└──────────────────────────────────────────────────────────┘
```
### How clustering works
Technitium uses standard DNS zone transfers (AXFR/IXFR) for primary/secondary
replication, not a proprietary protocol:
1. **Primary (01)** holds all zones as authoritative primary zones.
2. **Secondary (02)** holds each zone as a secondary zone configured with
`primaryServer=192.168.3.252:5300`.
3. On startup, the secondary immediately AXFRs the full zone from the primary.
4. On subsequent record changes, the primary sends a **DNS NOTIFY** to the
secondary, which triggers an **IXFR** (incremental transfer).
5. If the primary is down, the secondary continues serving the last-known zone
data independently.
### Credentials and 2FA
The production `auth.config` (containing all user accounts, passwords, and 2FA
secrets) is copied verbatim to both nodes. This means:
- The **same username, password, and 2FA device** work on all three servers.
- The web console is at `http://<host>:5380/` on each node.
- No credential changes are needed.
During the clustering configuration step, a temporary admin password is used
briefly (to access the API without 2FA), then the production `auth.config` is
restored. See "Security notes" below.
## Prerequisites
- SSH key access to all hosts as `localuser` with passwordless sudo.
- The `remote-dns.sh` wrapper must be able to reach all hosts via Tailscale FQDN.
- Docker + Docker Compose on netinfra-01/02 (already installed).
- The production Technitium on tailscale-router must be running.
## Usage
```bash
cd dns-cluster-setup/
# Step-by-step (recommended for first run):
./setup.sh export # 1. Export config from tailscale-router (READ-ONLY)
./setup.sh deploy01 # 2. Deploy to netinfra-01 as primary
./setup.sh deploy02 # 3. Deploy to netinfra-02 as secondary clone
./setup.sh cluster # 4. Configure clustering (01→02 zone transfers)
./setup.sh verify # 5. Run all verification tests
# Or all at once:
./setup.sh all
```
### Configuration overrides
All defaults can be overridden via environment variables:
| Variable | Default | Description |
|---|---|---|
| `PRIMARY_IP` | `192.168.3.252` | netinfra-01 LAN IP |
| `SECONDARY_IP` | `192.168.3.253` | netinfra-02 LAN IP |
| `TECH_PORT` | `5300` | Technitium DNS port on host (from compose mapping) |
| `CONFIG_DIR` | `/home/localuser/services/technitium/config` | Config bind-mount dir |
| `COMPOSE_FILE` | `/home/localuser/services/technitium/docker-compose.yml` | Compose file |
| `TEMP_ADMIN_PW` | `KnelClusterSetup!2026` | Temp admin password (used only during clustering, then discarded) |
## Scripts
| Script | Purpose |
|---|---|
| `remote-dns.sh` | SSH/SCP chokepoint for all DNS host access (tsrouter, netinfra01, netinfra02, netboot, sandbox) |
| `setup.sh` | Master orchestrator: export → deploy → cluster → verify |
| `verify.sh` | Comprehensive 10-section verification suite |
| `discover*.sh` | Read-only discovery probes (used during development, safe to keep) |
## What gets copied
From production `/etc/dns/` (inside the container), **excluding** runtime data:
| Copied (configuration) | Excluded (runtime) |
|---|---|
| `auth.config` (users, passwords, 2FA) | `cache.bin` (DNS cache) |
| `dns.config` (server settings) | `stats/` (query statistics) |
| `webservice.config` (web console) | `logs/` (log files) |
| `allowed.config` (zone transfer ACL) | |
| `blocked.config` (blocked domains) | |
| `blocklist.config` (blocklist settings) | |
| `blocklists/` (blocklist data) | |
| `zones/` (all 124 zone files) | |
| `scopes/` (DHCP scopes) | |
| `apps/` (Technitium apps) | |
## Verification tests
The `verify.sh` script runs 10 categories of tests:
1. **Container health** — both Technitium containers are Up
2. **API responds** — web console API is reachable on both nodes
3. **Zone count** — primary matches production; secondary matches primary
4. **Forward DNS** — known knel.net records resolve identically on both nodes
5. **External DNS** — both nodes can resolve external domains (github.com)
6. **Zone transfer (AXFR)** — secondary can AXFR knel.net from primary
7. **Reverse DNS** — PTR zones have SOA records on both nodes
8. **Production untouched** — container still running, zone count unchanged
9. **Failover** — secondary serves SOA independently (no primary dependency)
10. **Credentials** — `auth.config` byte-size matches across all three nodes
## Security notes
- **tailscale-router is never modified.** The only operation is `docker cp`
(read) to export the config. No writes, no restarts, no config changes.
- The temporary admin password (`TEMP_ADMIN_PW`) exists only during the
clustering step. After configuration, the production `auth.config` (with 2FA)
is restored. The temp password is never persisted.
- The export tarball (`.export/technitium-production-config.tar.gz`) contains
production credentials. It is in `.gitignore` and should be deleted after
setup: `rm -rf dns-cluster-setup/.export/`
- Each node's existing config is backed up to `config.backup-<timestamp>` before
replacement, so the change is reversible.
## Recovery
If something goes wrong, each node has a backup:
```bash
# On netinfra-01 or netinfra-02:
cd /home/localuser/services/technitium/
docker compose down
mv config config.failed
mv config.backup-<timestamp> config
docker compose up -d
```
## Validation on sandbox
After cluster setup, validate that client hosts use the pair correctly:
```bash
# From sectestbed-sandbox (or any client):
# Query primary directly:
dig @192.168.3.252 pfv-netinfra-01.knel.net
# Query secondary directly:
dig @192.168.3.253 pfv-netinfra-01.knel.net
# Both should return the same answer.
```
The KNELServerBuild provisioning code (`provisioning/ConfigFiles/NTP/ntp.conf`
and `provisioning/ConfigFiles/Resolv/resolv.conf`) points clients at both
servers for DNS and NTP redundancy. See `docs/server-build/tailscale.md` for the
full DNS architecture analysis.
netinfra/pfv-netboot-setup.md
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# pfv-netboot — Reference Network Infrastructure (READ-ONLY reference) # netinfra/pfv-netboot-setup.md
> **Status:** REFERENCE SOURCE ONLY. This node is production infrastructure. > **Documentation moved to Discourse — the canonical source of truth.**
> Do **not** modify it. This document describes it as audited so its services can >
> be replicated to `pfv-netinfra-01` / `pfv-netinfra-02`. All data below was > **pfv-netboot reference node setup**
> collected by **read-only** audit scripts (`audit-netboot.sh`, >
> `deep-audit-netboot.sh`, `gather-configs.sh`) on 2026-07-27/28. > **Read it here:** https://community.turnsys.com/t/306
>
## 1. Host > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
> Do not update content here — edit the Discourse wiki topic instead.*
| Item | Value |
|---|---|
| Hostname / FQDN | `pfv-netboot` / `pfv-netboot.knel.net` |
| OS | Debian GNU/Linux 12 (bookworm), kernel 6.1.0-44-amd64 |
| Hardware | 2 vCPU, ~1.9 GiB RAM, 491 GB disk (18 GB used) |
| Timezone | `America/Chicago` (US/Central) |
| LAN | `eth0` static `192.168.3.250/22`, gw `192.168.3.254` (`/etc/network/interfaces`) |
| Tailscale | `100.103.64.82` (`tailscale0`) |
| DNS resolver | Tailscale MagicDNS — `/etc/resolv.conf` → `100.100.100.100` |
| Docker | Docker Engine 29.6.2 (containerd v2.2.6, runc 1.3.6) |
| Access | `localuser` has passwordless sudo; **not** in `docker` group (uses `sudo docker`) |
`eth1` is up but unconfigured; many docker bridges exist (`pihole_default`,
`ntp_default`, `dns_default`, and several stale ones).
## 2. Services overview
| Service | Form | Running? |
|---|---|---|
| **Pi-hole** (DNS sinkhole, recursive resolver) | Docker container `pihole` | ✅ healthy |
| **NTP** — overlay on Tailscale IP | Docker container `tsys-ntp` (`dockurr/chrony`) | ✅ healthy |
| **NTP** — system clock + LAN serving | bare-metal `ntpsec` (`ntpd`) | ✅ active, enabled |
| **Technitium DNS** (authoritative for `knel.net`) | Docker container | ❌ **not running**; config preserved in orphaned volume |
## 3. Pi-hole (container)
- **Compose:** `/root/pihole/docker-compose.yml` (compose project `pihole`)
- **Image:** `pihole/pihole:latest` — Core **v6.1.2**, Web v6.2.1, FTL v6.2.2
- **Container:** `pihole`, `restart: always`, `cap_add: [SYS_NICE]`, network `pihole_default`
- **Ports (host):**
| Host | Container | Purpose |
|---|---|---|
| `53/tcp`, `53/udp` | 53 | DNS |
| `10002/tcp` | 80 | Web admin (HTTP) |
| `10003/tcp` | 443 | Web admin (HTTPS, self-signed) |
- **Environment:** `TZ=America/Chicago`, `FTLCONF_webserver_api_password=REDACTED_PASSWORD`, `FTLCONF_dns_listeningMode=all`
- **Data:** bind mount `/root/pihole/etc-pihole:/etc/pihole` (dir owned by `localuser`; files by container `pihole` uid)
- **Config (Pi-hole v6 TOML):** `pihole.toml`. Key settings:
- Upstream DNS: `192.168.3.16`, `8.8.8.8`, `2001:4860:4860::8888`
- `listeningMode = "ALL"`, `interface = "eth0"`, `dns.port = 53`, `dns.domain = "lan"`
- `queryLogging = true`, DNSSEC off
- **Adlists:** one entry — `https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts` (in `gravity.db`/`adlists.list`)
- **Gravity DB:** `/etc/pihole/gravity.db` (~5.5 MB) holds adlists/domainlists/clients/groups
- **Web admin:** `http://pfv-netboot:10002/admin/` (password `REDACTED_PASSWORD`)
- Note: query history `pihole-FTL.db` (~2.5 GB) is transient and **excluded** from replication.
## 4. NTP (two layers)
### 4a. chrony container (`tsys-ntp`) — overlay on the Tailscale IP
- **Compose:** `/root/NTP/docker-compose.yml` (project `ntp`)
- **Image:** `dockurr/chrony`
- **Env:** `NTP_SERVERS=pool.ntp.org`
- **Ports:** `100.103.64.82:123:123/udp` — bound specifically to the **Tailscale IP**
- `restart: always`
- chrony.conf (generated): `server pool.ntp.org iburst`, `allow all`, `rtcsync`
- On netboot this coexists with bare-metal ntpsec because ntpsec here does **not** pre-bind the specific Tailscale-IP socket, letting Docker claim it.
### 4b. bare-metal `ntpsec`
- Unit `ntpsec.service` — active, enabled; `/usr/sbin/ntpd -c /etc/ntpsec/ntp.conf -g -N -u ntpsec:ntpsec`
- **Config** (`/etc/ntpsec/ntp.conf`):
```
driftfile /var/lib/ntp/ntp.drift
leapfile /usr/share/zoneinfo/leap-seconds.list
server pfvsvrpi.knel.net
restrict 127.0.0.1
restrict ::1
```
- Listens on all local addresses (incl. Tailscale) for UDP/123; serves LAN clients.
## 5. Technitium DNS (currently stopped)
- **Not running** — no container and **no compose file** exists for it.
- A previous deployment left an **orphaned Docker volume** `dns_tsys-dns-config`
(mountpoint `/var/lib/docker/volumes/dns_tsys-dns-config/_data`) whose contents
are intact (last activity 2025-06-23). A second typo'd volume
`dns_tyss-dns-config` is empty.
- Config files are **binary** (Technitium's own serialization), but copy verbatim:
`dns.config`, `auth.config`, `log.config`, `scopes/Default.scope`,
`self-signed-cert.pfx`, `cache.bin`, `zones/`, `stats/`, `logs/`.
- **Zones present** (12 reverse + 1 forward):
- `knel.net.zone` — forward zone; SOA `dns.knel.net. hostadmin.knel.net.` (serial `2025062313`). A-records for the internal fleet, including: `tsys1`, `rr-middleware`, `pfv-netboot`, `pfv-k8s-cnode1`…`cnode5`, `pfv-k8s-wnode3`, `tsys-k8scloud-netcup-1`, `tsys-kali-vptechops`, `tsys-kali-dev`; NS `dns.knel.net`.
- Reverse zones for Tailscale CGNAT ranges (`100.x.in-addr.arpa`): `199.86`, `145.105`, `181.103`, `184.108`, `194.67`, `2.108`, `211.114`, `46.96`, `64.103`, `75.110`, `97.82`, `119.127`.
- **Auth:** `auth.config` defines user `admin` (Administrators group) with a stored password hash; the plaintext password is whatever was set on the original Technitium instance.
- The compose project name historically was `dns` (network `dns_default` still exists).
## 6. Firewall / misc
- nftables/iptables: mostly Docker + Tailscale chains (`ts-input`, `ts-forward`,
`DOCKER`, `DOCKER-FORWARD`); default `INPUT ACCEPT`, `FORWARD DROP`,
`OUTPUT ACCEPT`. No UFW / firewalld.
- Also runs (out of scope for this replication): Samba (137/138/139, 445), NFS
(2049), rpcbind (111), Postfix (25), Cockpit (9090), Beszel agent, webmin/
usermin (10000/10002/20000), Tailscale (41641).
- SELinux absent; AppArmor default docker profile.
## 7. How it was audited (no changes made)
```bash
ssh localuser@pfv-netboot 'bash -s' < audit-netboot.sh # broad read-only sweep
ssh localuser@pfv-netboot 'bash -s' < deep-audit-netboot.sh # docker inspect + compose
ssh localuser@pfv-netboot 'bash -s' < gather-configs.sh # pihole.toml + technitium
```
Artifacts: `netboot-audit.txt`, `netboot-deep-audit.txt`, `netboot-configs.txt`.
netinfra/pfv-netinfra-setup.md
+9 -219
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@@ -1,220 +1,10 @@
# pfv-netinfra-01 / pfv-netinfra-02 — Network Services Setup # netinfra/pfv-netinfra-setup.md
These two nodes replicate the network-infrastructure services of **pfv-netboot** > **Documentation moved to Discourse — the canonical source of truth.**
(Pi-hole, Technitium DNS, NTP). They were deployed by `setup-netinfra.sh`, which >
reads config from pfv-netboot (read-only) and relays it to each target. > **pfv-netinfra-01/02 initial setup**
>
## 1. Nodes > **Read it here:** https://community.turnsys.com/t/306
>
| | pfv-netinfra-01 | pfv-netinfra-02 | > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
|---|---|---| > Do not update content here — edit the Discourse wiki topic instead.*
| OS | Debian 13 (trixie), kernel 6.12.96+deb13 | Debian 13 (trixie) |
| LAN | `ens18` `192.168.3.252/24` | `ens18` `192.168.3.253/24` |
| Tailscale | `100.70.181.72` | `100.93.194.82` |
| RAM / Disk | 1.9 GiB / 30 GB (27 GB free) | 3.7 GiB / 30 GB (27 GB free) |
| Resolver | Tailscale MagicDNS (`100.100.100.100`) | same |
| Docker | 29.6.2 (pre-installed, enabled) | 29.6.2 |
| Access | `ssh localuser@pfv-netinfra-0X`, passwordless sudo; `localuser` **not** in docker group → use `sudo docker` | same |
## 2. Service layout
All services live under `/home/localuser/services/<svc>/` (owned by `localuser`
so the compose files are directly editable; data dirs keep container uids):
```
/home/localuser/services/
├── pihole/
│ ├── docker-compose.yml
│ └── etc-pihole/ # copied from netboot /root/pihole/etc-pihole
│ ├── pihole.toml # Pi-hole v6 config (upstreams, etc.)
│ ├── gravity.db # adlists / domainlists / clients / groups
│ ├── adlists.list
│ ├── dnsmasq.conf
│ ├── tls.{crt,pem,crt_ca}
│ └── versions
├── ntp/
│ └── docker-compose.yml # chrony container (see §5 — not used; host ntpsec serves)
└── technitium/
├── docker-compose.yml
└── config/ # copied from netboot orphaned volume dns_tsys-dns-config/_data
├── dns.config
├── auth.config
├── scopes/Default.scope
├── self-signed-cert.pfx
└── zones/ # knel.net.zone + 12 Tailscale reverse zones
```
## 3. Pi-hole (container `pihole`)
Image `pihole/pihole:latest`; `restart: always`; `cap_add: [SYS_NICE]`.
| Host port | Container | Purpose |
|---|---|---|
| `53/tcp`, `53/udp` | 53 | DNS (the LAN/Tailscale recursive resolver) |
| `10002/tcp` | 80 | Web admin (HTTP) |
| `10003/tcp` | 443 | Web admin (HTTPS) |
`docker-compose.yml`:
```yaml
services:
pihole:
container_name: pihole
image: pihole/pihole:latest
hostname: pihole
ports:
- "53:53/tcp"
- "53:53/udp"
- "10002:80/tcp"
- "10003:443/tcp"
environment:
TZ: 'America/Chicago'
FTLCONF_webserver_api_password: 'REDACTED_PASSWORD'
FTLCONF_dns_listeningMode: 'all'
volumes:
- './etc-pihole:/etc/pihole'
cap_add:
- SYS_NICE
restart: always
```
- Upstream DNS (from copied `pihole.toml`): `192.168.3.16`, `8.8.8.8`, `2001:4860:4860::8888`.
- Adlist: `https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts`.
- `pihole.toml` `interface` was adapted from netboot's `eth0` to the target's `ens18`.
- Web admin: `http://<node>:10002/admin/` — password **`REDACTED_PASSWORD`** (same as netboot).
- Web UI URL per node: `http://100.70.181.72:10002/admin/` (-01), `http://100.93.194.82:10002/admin/` (-02).
## 4. Technitium DNS (container `tsys-dns`)
Image `technitium/dns-server`; `restart: always`. Authoritative DNS for
`knel.net` (and Tailscale reverse zones), config copied verbatim from netboot's
orphaned `dns_tsys-dns-config` volume.
| Host port | Container | Purpose |
|---|---|---|
| `5300/tcp`, `5300/udp` | 53 | DNS (remapped — see note) |
| `5380/tcp` | 5380 | Web console (HTTP) |
| `53443/tcp` | 53443 | Web console (HTTPS) |
`docker-compose.yml`:
```yaml
services:
technitium:
image: technitium/dns-server
container_name: tsys-dns
ports:
- "5300:53/tcp"
- "5300:53/udp"
- "5380:5380/tcp"
- "53443:53443/tcp"
volumes:
- './config:/etc/dns'
restart: always
```
- Zones loaded (verified): `knel.net` SOA → `dns.knel.net. hostadmin.knel.net. 2025062313 900 300 604800 900`, plus 12 Tailscale reverse zones.
- Web console: `http://<node>:5380/` → user **`admin`** + the original Technitium
password (carried over via `auth.config`). If the password is unknown, reset it
from the console or by removing `config/auth.config` and recreating the container.
- **Port note:** Technitium's native DNS port (53) is remapped to host **5300**
because Pi-hole already owns host :53 (they cannot both bind 0.0.0.0:53). To
query the authoritative server: `dig -p 5300 @<node> knel.net SOA`. To make
Pi-hole resolve `knel.net` via Technitium, add a conditional/local upstream in
Pi-hole pointing to the container (e.g. `127.0.0.1#5300` is not host-reachable
from Pi-hole's netns — use the docker bridge IP of `tsys-dns`, or add
`knel.net` A-records directly in Pi-hole's Local DNS).
## 5. NTP (host `ntpsec`, not a container)
Both targets **already run a bare-metal `ntpsec` daemon** (active, enabled) that
serves NTP on every local address — including the Tailscale IP — and keeps the
system clock synced. This is the **same daemon family as netboot's own bare-metal
ntpsec**.
- **Why no chrony container?** netboot's chrony container (`tsys-ntp`) binds the
Tailscale IP `100.103.64.82:123`; on netboot that works only because its ntpsec
does **not** pre-bind the specific Tailscale-IP socket. On these targets ntpsec
**does** bind the Tailscale IP, so the container cannot claim it (`address
already in use`) and would be a non-functional duplicate (verified: the
container started but never synced — Stratum 0). It is therefore intentionally
**omitted**; host ntpsec provides NTP. `setup-netinfra.sh` detects an active
host NTP unit and removes any stale `tsys-ntp` container.
- ntpsec config (`/etc/ntpsec/ntp.conf`): Debian NTP pool (`0-3.debian.pool.ntp.org`),
`restrict default kod nomodify noquery limited` (serves time, blocks mgmt queries).
- Verified sync: -01 stratum 2 (~2 ms offset), -02 stratum 3 (~0.2 ms offset),
leap normal.
The `ntp/docker-compose.yml` is still written on each node for parity/reference
(and in case the host NTP is ever disabled — then `sudo docker compose -f
/home/localuser/services/ntp/docker-compose.yml up -d` brings up chrony).
## 6. Verification results (2026-07-28)
| Check | pfv-netinfra-01 | pfv-netinfra-02 |
|---|---|---|
| `pihole` health | healthy | healthy |
| `dig @127.0.0.1:53 pi.hole` | `172.18.0.2` | `172.18.0.2` |
| Pi-hole web `:10002` | HTTP 302 (→login) | HTTP 302 |
| `dig @127.0.0.1:5300 knel.net SOA` | SOA answered | SOA answered |
| Technitium web `:5380` | HTTP 200 | HTTP 200 |
| NTP daemon | ntpsec, stratum 2, synced | ntpsec, stratum 3, synced |
## 7. Operating the services
```bash
# status
sudo docker ps
# Pi-hole
sudo docker compose -f /home/localuser/services/pihole/docker-compose.yml ps
sudo docker compose -f /home/localuser/services/pihole/docker-compose.yml logs -f
sudo docker exec pihole pihole -v # version
sudo docker exec pihole pihole -g # rebuild gravity
sudo docker exec pihole pihole -a -p # set/change web password
# Technitium
sudo docker compose -f /home/localuser/services/technitium/docker-compose.yml logs -f
sudo docker exec tsys-dns sh # explore /etc/dns
# NTP (host)
systemctl status ntpsec
ntpq -pn
```
## 8. Differences from pfv-netboot (intentional)
1. **Layout** under `/home/localuser/services/` instead of `/root` (so `localuser`
can manage compose files); Pi-hole data dir still owned by `localuser`, as on netboot.
2. **Pi-hole `interface`** set to `ens18` (targets' NIC) instead of netboot's `eth0`.
3. **NTP:** host `ntpsec` (Debian pool) used instead of netboot's chrony container
(the container cannot bind the Tailscale IP here; see §5).
4. **Technitium DNS** host port remapped `53 → 5300` to avoid clashing with Pi-hole
on `:53`. The `knel.net` zone and all reverse zones are identical to netboot's.
5. Pi-hole query logs (`pihole-FTL.db*`) and regenerable caches/backups are not
copied (transient); gravity DB and all configuration are.
## 9. Re-running / reproducing
`setup-netinfra.sh` is **idempotent** — it skips re-copying config if already
present and uses `docker compose up -d` (no-ops when unchanged). It reads
pfv-netboot read-only and never mutates it.
```bash
./setup-netinfra.sh # deploy to both nodes
./setup-netinfra.sh pfv-netinfra-01 # deploy one node
./setup-netinfra.sh pfv-netinfra-01 verify # verify only
```
Prerequisites: SSH key access to all three hosts as `localuser` with passwordless
sudo; the targets reach `192.168.3.16`/`8.8.8.8` for Pi-hole upstream and the
internet for image pulls.
## 10. Files in this directory
| File | Purpose |
|---|---|
| `setup-netinfra.sh` | orchestrator: deploys + verifies the clone on -01/-02 |
| `audit-netboot.sh` | broad read-only audit of pfv-netboot |
| `deep-audit-netboot.sh` | docker inspect / compose / volume deep audit (read-only) |
| `gather-configs.sh` | targeted config pull (pihole.toml, technitium) (read-only) |
| `baseline.sh` | read-only baseline of a target node |
| `netboot-audit.txt`, `netboot-deep-audit.txt`, `netboot-configs.txt` | audit output |
| [`pfv-netboot-setup.md`](pfv-netboot-setup.md) | reference-node documentation |
| [`pfv-netinfra-setup.md`](pfv-netinfra-setup.md) | this document |
netinfra/pihole/README.md
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# netinfra/pihole/ — Pi-hole recursive DNS (pfv-netinfra-01/02) # netinfra/pihole/README.md
> **Redmine:** [#376](https://projects.knownelement.com/issues/376) (up/down alerts + commit hardening) · [#357](https://projects.knownelement.com/issues/357) (cluster build, closed) > **Documentation moved to Discourse — the canonical source of truth.**
>
Pi-hole v6 runs as the recursive resolver on port 53 of both DNS nodes. > **Pi-hole recursive DNS hardening**
Technitium (`tsys-dns`) runs as the authoritative server on port 5300; the two >
share the `dnsnet` Docker network so Pi-hole can conditional-forward `knel.net` > **Read it here:** https://community.turnsys.com/t/306
zones to Technitium. >
> *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
## Hardening (defense-in-depth against gravity.db corruption) > Do not update content here — edit the Discourse wiki topic instead.*
The operator hit a production outage when Pi-hole's `/dev/shm` was too small,
corrupting `gravity.db`. The live config on both nodes now includes:
- **`shm_size: 1024M`** — fixes the root cause (default 64M was too small).
- **`gravity-validate.sh`** — entrypoint that checks the SQLite header of
`gravity.db` before start; auto-moves a corrupt/empty DB aside so Pi-hole
can regenerate it cleanly.
- **Healthcheck** — `dig +norecurse @127.0.0.1 pi.hole` + gravity.db non-empty;
fails the container if DNS or the DB is broken.
- **`autoheal`** sidecar — restarts any container labeled `autoheal=true` that
goes unhealthy.
## Deploy
The compose reads the web UI password from a gitignored `.env`:
```bash
cd netinfra/pihole/
cp .env.example .env # then edit .env and set PIHOLE_WEB_PASSWORD
docker compose up -d
```
Files are deployed to `/home/localuser/services/pihole/` on each node. Volumes
(`./etc-pihole`, `./etc-dnsmasq.d`) hold the persistent state.
## IPv6 disabled + Rate-limiting disabled
### IPv6
Both netinfra nodes run **IPv4-only**. IPv6 is disabled at the kernel level
(`/etc/sysctl.d/99-disable-ipv6.conf`) because netinfra-01 has no IPv6 internet
route, and Pi-hole's default IPv6 upstream (Google `2001:4860:4860::8888`) was
causing continuous "Network unreachable" errors + intermittent DNS failures
detected by Uptime Kuma. The upstream is now `8.8.8.8` (IPv4 only).
### Rate-limiting
Pi-hole's default rate-limit (1000 queries / 60 seconds per client) was
**the root cause of Uptime Kuma DNS flapping**. Uptime Kuma runs on the
Cloudron VPS (`tsys-cloudron`, `100.107.35.78`) and sends high-volume DNS
queries to monitor dozens of hosts. When it exceeded 1000 queries/60s,
Pi-hole responded with REFUSED, which Uptime Kuma detected as DNS being
down. Rate-limiting is now disabled (`count=0, interval=0`) since this is a
private tailnet with no risk of DNS amplification attacks.
## Verify
```bash
dig @127.0.0.1 +short google.com # recursive
dig @127.0.0.1 +short git.knownelement.com # knel.net via Technitium forward
docker inspect pihole --format '{{.State.Health.Status}}'
```
proxmox/docs/AUDIT-2026-07-29.md
+10 -452
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@@ -1,452 +1,10 @@
# Fleet Audit — 2026-07-29 (consolidated, storage-corrected) # proxmox/docs/AUDIT-2026-07-29.md
> **The single authoritative audit.** Supersedes all prior audits and the > **Documentation moved to Discourse — the canonical source of truth.**
> placement data in [`PROJECT.md`](PROJECT.md) §4-§8 where they conflict. >
> Capacity targets are codified in [`CAPACITY-GOALS.md`](CAPACITY-GOALS.md). > **Audit snapshot 2026-07-29**
>
**Audit time:** 2026-07-29, fresh data from all 7 hosts (~05:09 CDT hardware > **Read it here:** https://community.turnsys.com/t/298
dumps + ~05:40 CDT capacity probe). Storage configs read directly from >
`/etc/pve/storage.cfg`, `/etc/exports`, `/etc/fstab` on every host. > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
**Hosts online:** tsys1, tsys3, tsys4, tsys5, tsys6, tsys7, tsys9 > Do not update content here — edit the Discourse wiki topic instead.*
**Hosts offline:** tsys2 (Win10, pending rebuild), tsys8 (retired / permanently offline)
---
## 1. Executive summary
| Goal | Status | Detail |
|------|--------|--------|
| **Memory ≤ 80% actual steady-state** | **PASS (all 7 hosts)** | Highest is tsys1 at 73%. Fleet is healthy. |
| **CPU ~50% at idle** | **MISS (all 7 hosts)** | Every host idles at **0-5% busy**. Under-utilized, not over-loaded. |
| Finding | Severity | § |
|---------|----------|---|
| **D2 carries 17 VMs** — the worst IOPS hotspot in the fleet | High | 5 |
| **S1 is NOT empty — it carries 16 sectestbed VMs via `local-nonprod`** (previous audit was wrong) | High | 4, 5 |
| ~~tsys6 S1 NFS export typo~~ (`S21`) — **FIXED by operator 2026-07-29**; all 8 stores active | Resolved | 6 |
| ~~tsys9 missing S1~~ in storage.cfg — **FIXED by operator 2026-07-29**; S1 active | Resolved | 6 |
| **`local-nonprod` on tsys5 = the S1 physical disk** (dir storage, not a separate disk) | Topology | 4 |
| **tsys5 is single-CPU** (CPU2 socket unpopulated; prior "dual E5620" was wrong) | Medium | 9 |
| **cnode4 (601) stopped, cnode5 (706) deleted** (user action this session) | Resolved | 10 |
---
## 2. Host capacity (live, 2026-07-29 ~05:40 CDT)
| Host | CPU (era) | Threads | RAM | Running VMs | Alloc RAM | Alloc% | **Actual%** | Swap used | CPU busy | Load |
|------|-----------|---------|-----|-------------|-----------|--------|------------|-----------|----------|------|
| tsys1 | i7-4770 Haswell (2013) | 8 | 31 GB | 11 | 36 GB | 115% | **73%** | 0 | 4% | 1.1 |
| tsys3 | Xeon E3-1535M v5 Skylake (2015) | 8 | 31 GB | 1 | 28 GB | 90% | **10%** | 0 | 0% | 0.3 |
| tsys4 | Xeon E3-1246 v3 Haswell (2013) | 8 | 16 GB | 1 | 2 GB | 13% | **14%** | 1.1 GB | 0% | 1.3 |
| tsys5 | Xeon E5620 Westmere (2010) **single CPU** | 8 | 94 GB | 17 | 126 GB | 134% | **37%** | 0 | 5% | 4.0 |
| tsys6 | 2× Xeon E5530 Nehalem (2009) | 16 | 126 GB | 2 | 44 GB | 35% | **4%** | 0 | 0% | 0.6 |
| tsys7 | 2× Xeon E5-2630 v2 Ivy Bridge (2013) | 24 | 189 GB | 5 | 52 GB | 28% | **7%** | 0 | 1% | 0.9 |
| tsys9 | i5-10500 Comet Lake (2020) | 12 | 23 GB | 6 | 30 GB | 129% | **62%** | 0 | 1% | 0.3 |
**Changes since first collection (~05:09):** cnode4 (601) stopped on tsys6,
cnode5 (706) deleted from tsys7. No host migrations performed yet.
---
## 3. Storage topology (CORRECTED — read from live configs)
> **`storage.cfg` is per-host, not cluster-wide.** Each Proxmox node defines its
> own storage entries. The same physical disk can appear under different storage
> IDs on different hosts. This was the source of the prior audit's errors.
### 3.1 Physical disk → Proxmox storage ID mapping
| Physical disk | Server | NFS export | NFS ID (clients) | Local ID (on tsys5) | Type |
|---------------|--------|------------|-----------------|---------------------|------|
| WDC Red 3TB | tsys4 | `/mnt/tsys4/D2` | `D2` | — | HDD |
| SK hynix SC300 512GB | tsys4 | `/mnt/tsys4/D3` | `D3` | — | SSD (USB) |
| Hitachi 2TB | tsys4 | `/mnt/tsys4/D5` | `D5` | — | HDD |
| *(disk1)* | tsys4 | `/mnt/tsys4/D1` | *(not in most storage.cfg)* | — | unknown |
| *(disk7)* | tsys4 | `/mnt/tsys4/D7` | *(not in most storage.cfg)* | — | unknown |
| **Seagate 916GB** | **tsys5** | **`/mnt/pfv-tsys5/S1`** | **`S1`** | **`local-nonprod`** | **HDD** |
| Seagate 916GB | tsys5 | `/mnt/pfv-tsys5/S2` | `S2` | `S2` (NFS client) | HDD |
| Seagate 916GB | tsys5 | `/mnt/pfv-tsys5/S3` | `S3` | `S3` (NFS client) | HDD |
| Toshiba 458GB | tsys5 | `/mnt/pfv-tsys5/S4` | `S4` | `S4` (NFS client) | HDD |
| **Samsung 860 PRO 234GB** | **tsys5** | **`/mnt/pfv-tsys5/ssd`** | **`T5-SSD`** | **`SSD`** (dir, local-only) | **SSD** |
### 3.2 Critical correction: `local-nonprod` = S1
On tsys5, the storage entry is:
```
dir: local-nonprod
path /mnt/pfv-tsys5/S1
```
**`local-nonprod` is NOT a separate disk.** It is the **S1 Seagate 916GB HDD**,
accessed locally as a directory storage instead of via NFS. The 16 sectestbed
and preprod VMs "on local-nonprod" are physically on S1. They appear locked to
tsys5 because Proxmox treats `local-nonprod` (dir type) as a different storage
than `S1` (NFS type), even though they point to the same directory.
**Implication:** S1 has **16 VMs of IOPS load**, not 0. The prior audit's plan
to move production VMs onto S1 would have stacked them on top of 16 sandboxes.
### 3.3 Disk speed tiers (HDD only — SSD/NVMe deferred to Friday)
| Tier | Spindles | Speed | Current use |
|------|----------|-------|-------------|
| NFS-HDD (tsys4) | D2, D5 | 80-120 MB/s | Production VMs |
| NFS-HDD (tsys5) | S1, S2, S3, S4 | 80-120 MB/s | Production + sectestbed VMs |
| Local HDD (tsys5) | local-nonprod (=S1) | 80-120 MB/s | Sectestbed suite (locked to tsys5) |
| SSD (tsys4 USB) | D3 | unreliable (USB 2.0) | Empty — do not use until Friday |
| SSD (tsys5 local) | SSD dir (=Samsung 860 PRO) | 200-400 MB/s | ultix-streaming only |
---
## 4. Per-spindle IOPS load (CORRECTED)
| Spindle | Server | NFS-visible VMs | Local-only VMs | **Total physical load** |
|---------|--------|----------------|----------------|------------------------|
| **D2** (3TB) | tsys4 | **17** | 0 | **17 — worst hotspot** |
| D5 (2TB) | tsys4 | 3 | 0 | 3 |
| **S1** (916GB) | tsys5 | 0 | **16** (via local-nonprod) | **16 — second worst** |
| S2 (916GB) | tsys5 | 4 | 0 | 4 |
| S3 (916GB) | tsys5 | 3 | 0 | 3 |
| S4 (458GB) | tsys5 | 1 | 0 | 1 — most spare capacity |
**D2 and S1 are both overloaded. S2/S3/S4 and D5 have room.**
The 16 sectestbed VMs on S1 are idle sandboxes — they don't generate much real
IOPS, but they're all on one spindle. If any of them wake up simultaneously (CI
pipeline, test suite), S1 becomes a bottleneck. **Do not add production VMs to
S1.** Target S2, S3, S4, and D5 for IOPS spreading.
---
## 5. Storage bugs and config gaps found
### 5.1 BUG: tsys6 S1 export path typo (S21) — RESOLVED ✓
**Fixed by operator 2026-07-29.** The export path was corrected from `S21` to
`S1`. Verified: `pvesm status` on tsys6 shows all 8 NFS stores active, including
S1 (96 GB, 10.3% used by the sectestbed VMs visible via NFS).
### 5.2 GAP: tsys9 missing S1 in storage.cfg — RESOLVED ✓
**Fixed by operator 2026-07-29.** S1 entry added to tsys9's storage.cfg.
Verified: all 8 NFS stores active on tsys9, S1 listing identical to tsys6.
### 5.3 ORPHANED: D1 and D7 exports on tsys4
tsys4 exports D1 and D7 via NFS, but neither appears in most hosts' storage.cfg.
- **D1** holds KNELTemplate (4000) and RestoreTemplate (5500) — stopped
templates only, no running VMs.
- **D7** holds a disk for DellOpenManageEnterprise (500) — stopped.
These aren't causing problems but are underdocumented. Not actionable now.
---
## 6. Current VM inventory (host + disk, post-user-changes)
> cnode4 (601) = stopped. cnode5 (706) = deleted. All other VMs unchanged from
> start of session. `Disk` = NFS export or local storage holding the primary
> qcow2.
### tsys1 — Infrastructure (11 running)
| VMID | Name | vCPU | RAM | Disk | Server |
|------|------|------|-----|------|--------|
| 100 | pfv-bms (HomeAssistant) | 2 | 4 GB | D2 | tsys4 |
| 101 | tsys-ca | 2 | 2 GB | D2 | tsys4 |
| 102 | pfv-k8s-wnode-tsys1 | 4 | 4 GB | S3 | tsys5 |
| 103 | **pfv-netinfra-01** | 2 | 2 GB | S2 | tsys5 |
| 104 | tsys-librenms | 2 | 2 GB | D2 | tsys4 |
| 105 | tsys-proxmox-datacenter | 2 | 2 GB | D2 | tsys4 |
| 106 | pfv-k8s-cnode3 | 2 | 4 GB | D5 | tsys4 |
| 108 | **tsys-ucs-01** | 4 | 8 GB | D2 | tsys4 |
| 109 | tailscale-router | 2 | 2 GB | D2 | tsys4 |
| 114 | kali-tsys | 2 | 2 GB | D2 | tsys4 |
| 117 | tsys-secure-workbench | 2 | 4 GB | D2 | tsys4 |
### tsys3 — Compute (1 running)
| VMID | Name | vCPU | RAM | Disk | Server |
|------|------|------|-----|------|--------|
| 313 | pfv-k8s-wnode-tsys3 | 8 | 28 GB | D5 | tsys4 |
### tsys4 — Storage (1 running)
| VMID | Name | vCPU | RAM | Disk | Server |
|------|------|------|-----|------|--------|
| 400 | pfv-proxmox-backup-server | 2 | 2 GB | local-lvm | LOCAL |
### tsys5 — Storage + sandboxes (17 running)
| VMID | Name | vCPU | RAM | Disk | Server | Migratable? |
|------|------|------|-----|------|--------|-------------|
| 509 | pfv-k8s-wnode-tsys5 | 8 | 32 GB | D2 | tsys4 | Yes (NFS) |
| 5111 | ultix-streaming | 4 | 9 GB | SSD (local dir) | LOCAL | No (local) |
| 5112 | ultix-offstage | 4 | 6 GB | local-lvm | LOCAL | No (local) |
| 5101 | sectestbed-siem | 4 | 10 GB | local-nonprod (=S1) | LOCAL* | No (dir storage) |
| 53100 | tsys-preprod-awx | 4 | 9 GB | local-nonprod (=S1) | LOCAL* | No |
| 53101 | tsys-preprod-siem | 4 | 12 GB | local-nonprod (=S1) | LOCAL* | No |
| 53102 | tsys-preprod-rancherplatform | 4 | 8 GB | local-nonprod (=S1) | LOCAL* | No |
| ×10 | sectestbed suite | 4 ea | 4 GB ea | local-nonprod (=S1) | LOCAL* | No |
> *\*LOCAL = locked to tsys5. The local-nonprod VMs are on the S1 physical disk
> but accessed via dir storage, not NFS — Proxmox will not migrate them. To
> unlock, move disk from `local-nonprod` → `S1` (same physical disk, changes the
> storage ID to the NFS-shared one). Low priority — these are idle sandboxes.*
### tsys6 — RackRental-ready (2 running, 1 stopped)
| VMID | Name | vCPU | RAM | Disk | Server | Status |
|------|------|------|-----|------|--------|--------|
| 100 | pfv-k8s-wnode-tsys6 | 4 | 32 GB | S4 | tsys5 | running |
| 600 | tsys-awx | 4 | 12 GB | D2 | tsys4 | running |
| 601 | pfv-k8s-cnode4 | 4 | 4 GB | D2 | tsys4 | **STOPPED** |
### tsys7 — RackRental-ready (5 running)
| VMID | Name | vCPU | RAM | Disk | Server |
|------|------|------|-----|------|--------|
| 701 | pfv-k8s-wnode-tsys7 | 4 | 32 GB | S3 | tsys5 |
| 702 | hfnoc-uisp | 4 | 8 GB | D2 | tsys4 |
| 703 | rr-middleware | 2 | 2 GB | D2 | tsys4 |
| 704 | TCTC | 4 | 6 GB | D2 | tsys4 |
| 705 | pfv-k8s-cnode2 | 4 | 4 GB | D2 | tsys4 |
### tsys9 — Infra + control plane (6 running)
| VMID | Name | vCPU | RAM | Disk | Server |
|------|------|------|-----|------|--------|
| 901 | tsys-siem | 2 | 8 GB | D2 | tsys4 |
| 902 | **tsys-ucs-02** | 4 | 8 GB | S2 | tsys5 |
| 903 | kali-rd | 2 | 2 GB | D5 | tsys4 |
| 904 | **pfv-netinfra-02** | 2 | 4 GB | D2 | tsys4 |
| 905 | pfv-k8s-wnode-tsys9 | 4 | 4 GB | S2 | tsys5 |
| 906 | pfv-k8s-cnode1 | 2 | 4 GB | S3 | tsys5 |
### k3s control plane (ground truth via `kubectl`)
3 cnodes joined: cnode1 (906/tsys9), cnode2 (705/tsys7), cnode3 (106/tsys1).
All control-plane,etcd role. CPU 2%, mem ~1.1 GB each. **No wnodes joined yet.**
---
## 7. Workload placement model
| Workload family | Needs | Best hosts | Why |
|-----------------|-------|-----------|-----|
| **ETL / HPC / cross-compile** | High IPC + fast storage | **tsys9, tsys3, tsys2(in)** | Newest CPUs + local SSD/NVMe |
| **RackRental.net** | Massive RAM, CPU-light | **tsys7, tsys6** | 189/126 GB RAM; weak CPU fine for idle labs |
| **Infra + k8s control plane** | Always-on, low resource | **tsys1, tsys9** | Efficient enough; cnodes spread for etcd diversity |
---
## 8. Answers to operator's questions
### 8.1 "Should I make the k8s wnode VMs bigger on tsys1/9 for ETL/HPC?"
**tsys9 — YES.** Newest CPU (i5-10500, 12 threads) + local SSD. Currently 4c/4GB.
After moving tsys-siem (8 GB) to tsys6, grow to **6c/8-16 GB**.
**tsys1 — NO.** The i7-4770 is Haswell-2013 (2nd-oldest). tsys1 is the most
RAM-loaded host (73% actual, 115% alloc). It should shed VMs, not grow its wnode.
### 8.2 "Are tsys6/7 better for RackRental.net?"
**Yes.** RAM-bound, CPU-light labs fit 126/189 GB perfectly. They don't need
more RAM (4%/7% actual). Their bottleneck is disk (USB 2.0 local-lvm ≈ 30 MB/s)
— deferred to Friday + StorageClass work.
### 8.3 "How should I deploy the DDR3?"
Verify type first. tsys5/6/7 require **RDIMM ECC** (consumer UDIMM won't POST).
tsys1 is maxed (32 GB, caps at 8 GB/slot). tsys4 caps at 8 GB/slot (max 32 GB).
Most likely only useful for tsys4 16→32 GB. The real RAM lever is **free VM
migration**, not sticks. See [`CAPACITY-GOALS.md`](CAPACITY-GOALS.md) §5.
---
## 9. Hardware corrections
**tsys5 is single-CPU.** dmidecode: `CPU2: Status Unpopulated`. The T7500 has
one E5620 (4c/8t), not two. The 6 empty DIMM slots are on the CPU2 branch —
useless without a 2nd CPU. Seating a spare LGA771 Xeon would double CPU capacity
and activate the CPU2 DIMM branch.
**tsys4 is using ~1.1 GB of swap.** Only host with active swap. Minor, but
monitor after the planned RAM upgrade.
---
## 10. Target end-state inventory (RAM/CPU + HDD IOPS balanced)
> All disks stay on **HDD** (SSD/NVMe deferred to Friday). Goals: (a) relieve
> tsys1/9 RAM over-allocation, (b) relieve D2 (17→5 VMs), (c) spread to S2/S3/S4
> (currently 4/3/1), (d) **avoid S1** (already has 16 local VMs), (e) keep HA
> pairs split across storage servers.
### tsys1 — Infrastructure (6 running, ~24 GB alloc → 77%)
| VMID | Name | vCPU | RAM | Disk | Server | Change |
|------|------|------|-----|------|--------|--------|
| 100 | pfv-bms | 2 | 4 GB | D2 | tsys4 | none |
| 101 | tsys-ca | 2 | 2 GB | D2 | tsys4 | none |
| 102 | pfv-k8s-wnode-tsys1 | 4 | 4 GB | S3 | tsys5 | none |
| 103 | **pfv-netinfra-01** | 2 | 2 GB | S2 | tsys5 | none |
| 106 | pfv-k8s-cnode3 | 2 | 4 GB | D5 | tsys4 | none |
| 108 | **tsys-ucs-01** | 4 | 8 GB | D2 | tsys4 | none |
### tsys3 — Compute (1 running)
| VMID | Name | vCPU | RAM | Disk | Server | Change |
|------|------|------|-----|------|--------|--------|
| 313 | pfv-k8s-wnode-tsys3 | 8 | 28 GB | D5 | tsys4 | none |
### tsys4 — Storage (1 running)
| VMID | Name | vCPU | RAM | Disk | Change |
|------|------|------|-----|------|--------|
| 400 | pfv-proxmox-backup-server | 2 | 2 GB | local-lvm | none |
### tsys5 — Storage + sandboxes (17 running, unchanged)
All 17 stay. wnode-tsys5 (509) disk moves D2→S4. The 16 local-nonprod VMs stay
locked (idle sandboxes, low priority).
### tsys6 — RackRental-ready (3 running, ~52 GB alloc → 41%)
| VMID | Name | vCPU | RAM | Disk | Server | Change |
|------|------|------|-----|------|--------|--------|
| 100 | pfv-k8s-wnode-tsys6 | 4 | 32 GB | S4 | tsys5 | none |
| 600 | tsys-awx | 4 | 12 GB | **D5** | tsys4 | **disk D2→D5** |
| 901 | tsys-siem | 2 | 8 GB | **S2** | tsys5 | **host tsys9→tsys6, disk D2→S2** |
| ~~601~~ | ~~cnode4~~ | — | — | — | — | **DELETE (stopped, stale)** |
### tsys7 — RackRental-ready (10 running, ~64 GB alloc → 34%)
| VMID | Name | vCPU | RAM | Disk | Server | Change |
|------|------|------|-----|------|--------|--------|
| 701 | pfv-k8s-wnode-tsys7 | 4 | 32 GB | S3 | tsys5 | none |
| 702 | hfnoc-uisp | 4 | 8 GB | **S4** | tsys5 | **disk D2→S4** |
| 703 | rr-middleware | 2 | 2 GB | **S4** | tsys5 | **disk D2→S4** |
| 704 | TCTC | 4 | 6 GB | **S3** | tsys5 | **disk D2→S3** |
| 705 | pfv-k8s-cnode2 | 4 | 4 GB | **S2** | tsys5 | **disk D2→S2** |
| 104 | tsys-librenms | 2 | 2 GB | **S3** | tsys5 | **host tsys1→tsys7, disk D2→S3** |
| 105 | tsys-proxmox-datacenter | 2 | 2 GB | **S4** | tsys5 | **host tsys1→tsys7, disk D2→S4** |
| 109 | tailscale-router | 2 | 2 GB | D2 | tsys4 | **host tsys1→tsys7** (disk stays D2) |
| 114 | kali-tsys | 2 | 2 GB | **S2** | tsys5 | **host tsys1→tsys7, disk D2→S2** |
| 117 | tsys-secure-workbench | 2 | 4 GB | **S3** | tsys5 | **host tsys1→tsys7, disk D2→S3** |
### tsys9 — Infra + control + compute (5 running, ~22 GB alloc → 94%)
| VMID | Name | vCPU | RAM | Disk | Server | Change |
|------|------|------|-----|------|--------|--------|
| 902 | **tsys-ucs-02** | 4 | 8 GB | S2 | tsys5 | none |
| 903 | kali-rd | 2 | 2 GB | D5 | tsys4 | none |
| 904 | **pfv-netinfra-02** | 2 | 4 GB | D2 | tsys4 | none |
| 905 | pfv-k8s-wnode-tsys9 | **6** | **8 GB** | S2 | tsys5 | **grow 4c/4G→6c/8G** |
| 906 | pfv-k8s-cnode1 | 2 | 4 GB | S3 | tsys5 | none |
| ~~901~~ | ~~tsys-siem~~ | — | — | — | — | **move→tsys6** |
### End-state per-spindle IOPS load
| Spindle | Server | # VMs | VMs on it |
|---------|--------|-------|-----------|
| **D2** (3TB) | tsys4 | **5** | bms, ca, ucs01, tailscale, netinfra02 |
| D5 (2TB) | tsys4 | 4 | cnode3, wnode3, awx, kali-rd |
| S1 (916GB) | tsys5 | **16** (unchanged) | sectestbed suite (local-nonprod, idle) |
| **S2** (916GB) | tsys5 | **7** | netinfra01, ucs02, wnode9, cnode2, siem, kali, pdm* |
| **S3** (916GB) | tsys5 | **7** | wnode1, wnode7, cnode1, uisp, TCTC, librenms, workbench |
| **S4** (458GB) | tsys5 | **5** | wnode5, wnode6, rr-middleware, uisp*... |
> *S2/S3 carry 7 each because the sectestbed load on S1 is idle. If those 16
> sectestbed VMs ever become active, rebalance — but for now S2/S3 at 7
> production VMs each is fine (they're 916 GB disks with light per-VM I/O).*
**D2: 17→5. No VMs added to S1. S2/S3/S4 absorb the load.**
HA pairs stay split:
- netinfra: 01 on S2 (tsys5), 02 on D2 (tsys4) ✓
- ucs: 01 on D2 (tsys4), 02 on S2 (tsys5) ✓
---
## 11. Action checklist (do in this order)
### Phase 0 — fix storage config bugs first — DONE ✓
- ~~Fix tsys6 S1 typo~~ — **operator fixed 2026-07-29** (verified: 8/8 stores active)
- ~~Add S1 to tsys9 storage.cfg~~ — **operator fixed 2026-07-29** (verified)
### Phase 1 — cleanup
- **Delete cnode4 (VMID 601) on tsys6** — stopped, stale, not in cluster
- **Confirm cnode5 (706) gone** — already deleted by operator ✓
### Phase 2 — disk migrations off D2 (IOPS rebalancing)
> Do disk moves on VMs that are staying on their current host first.
- **wnode-tsys5 (509):** disk **D2 → S4** (host stays tsys5)
- **tsys-awx (600):** disk **D2 → D5** (host stays tsys6)
- **hfnoc-uisp (702):** disk **D2 → S4** (host stays tsys7)
- **rr-middleware (703):** disk **D2 → S4** (host stays tsys7)
- **TCTC (704):** disk **D2 → S3** (host stays tsys7)
- **cnode2 (705):** disk **D2 → S2** (host stays tsys7)
### Phase 3 — host + disk migrations (RAM/CPU relief, 6 VMs)
- **tsys-librenms (104):** host **tsys1 → tsys7**, disk **D2 → S3**
- **tsys-proxmox-datacenter (105):** host **tsys1 → tsys7**, disk **D2 → S4**
- **tailscale-router (109):** host **tsys1 → tsys7** (disk stays **D2**)
- **kali-tsys (114):** host **tsys1 → tsys7**, disk **D2 → S2**
- **tsys-secure-workbench (117):** host **tsys1 → tsys7**, disk **D2 → S3**
- **tsys-siem (901):** host **tsys9 → tsys6**, disk **D2 → S2**
### Phase 4 — grow the compute wnode
- **wnode-tsys9 (905):** resize **4c/4GB → 6c/8GB** (stop/start required)
### Phase 5 — join workers to k3s
- Join wnodes via `k8s/join-servers.sh`
- Label: `workload=compute` (tsys3/9), `workload=rackrental` (tsys6/7), `workload=light` (tsys1/5)
### Verification after each phase
- `qm list` per host — confirm VM count + status
- `cat /proc/meminfo` — confirm actual RAM ≤ 80%
- `kubectl top nodes` — confirm cnodes healthy
- `ssh root@pfv-tsys4 'df -h /mnt/tsys4/D2'` — confirm D2 frees up
- `ssh root@pfv-tsys5 'df -h /mnt/pfv-tsys5/S2 /mnt/pfv-tsys5/S3 /mnt/pfv-tsys5/S4'` — confirm fills
---
## 12. Future: local storage as ephemeral scratch
> Codified as standing policy in [`CAPACITY-GOALS.md`](CAPACITY-GOALS.md) §6.
The fleet has substantial **unused local storage IOPS** on several hosts. OS
drives stay on NFS (no per-node disk redundancy — see policy), but local storage
is ideal for **ephemeral scratch** (container image cache, build artifacts,
`emptyDir` volumes) where data loss on node failure is acceptable.
**Per-host opportunity:**
| Host | Local | Available | Scratch-suitable? |
|------|-------|-----------|-------------------|
| tsys3 | NVMe (PM961) | 349 GB | **Yes — best existing** |
| tsys9 | SSD (PNY CS900) | 136 GB | **Yes** |
| tsys2 | NVMe + SSD | 512 GB + 1 TB | **Yes (incoming)** |
| tsys5 | HDD (Hitachi) | ~1.7 TB | Yes (bulk) |
| tsys6 | USB 2.0 HDD | 1.7 TB | **NO (30 MB/s)** |
| tsys7 | USB 2.0 HDD | 1.7 TB | **NO (30 MB/s)** |
**The tsys6/7 problem:** they are the RackRental hosts (most in need of fast
image pulls) but their local storage is USB 2.0 — slower than NFS. The real fix
is installing internal drives (tsys6 has a disabled SAS controller; tsys7 has 5
empty SATA ports). Deferred to a physical-hardware session.
**Implementation:** post-Friday, once SSD/NVMe tiers are installed and the k8s
StorageClass design is finalized. Wnodes with local storage get a `/scratch`
mount for ephemeral data; persistent data stays on NFS. See
[`CAPACITY-GOALS.md`](CAPACITY-GOALS.md) §6.4 for the StorageClass mapping.
proxmox/docs/AUDIT-2026-07-30.md
+10 -478
View File
@@ -1,478 +1,10 @@
# Fleet Audit — 2026-07-30 (full ground-truth: network + storage + compute) # proxmox/docs/AUDIT-2026-07-30.md
> **The single authoritative audit.** Supersedes [`AUDIT-2026-07-29.md`](AUDIT-2026-07-29.md) > **Documentation moved to Discourse — the canonical source of truth.**
> and [`PROJECT.md`](PROJECT.md) where they conflict. Capacity targets are >
> codified in [`CAPACITY-GOALS.md`](CAPACITY-GOALS.md). > **Audit snapshot 2026-07-30**
>
**Audit time:** 2026-07-30, fresh data from all 7 online hosts (~03:30–03:45 UTC) > **Read it here:** https://community.turnsys.com/t/298
+ switch SNMP/conman captures (~03:50–04:00 UTC). >
**Method:** `perf/scripts/probe-storage.sh`, `perf/scripts/probe-network.sh`, > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
`perf/scripts/snmp-switch-audit.py`, `perf/scripts/conman-console.py` — all > Do not update content here — edit the Discourse wiki topic instead.*
read-only. No changes made to any system.
**Hosts online:** tsys1, tsys3, tsys4, tsys5, tsys6, tsys7, tsys9
**Hosts retired:** tsys8 (permanently), tsys2 (Win10, pending rebuild)
---
## 1. Physical network topology
### 1.1 Diagram
```
RACK 5 (core/data) RACK 3 (compute/RackRental)
┌─────────────────────────┐ ┌──────────────────────────┐
│ │ │ │
│ pfv-core-sw01 │ ch1 LAG │ pfv-tor3-stor │
│ PowerConnect 5448 │◄───3×1G──────────►│ Neyland 24T (PC5324) │
│ (mgmt+storage VLAN) │ (g13-15) │ (storage TOR) │
│ │ g16 UP, not │ │
│ VLAN1 (mgmt) │ in LAG; g17 │ g8-9 → tsys6 bond0 │
│ VLAN1000 (storage) │ DOWN │ g10-11 → tsys7 bond0 │
│ │ │ g20-23 → ch1 (3 active) │
│ g8 → tsys4 nic0 │ │ │
│ g19 → tsys5 nic0 │ │ pfv-tor3-mgmt │
│ g31 → tsys4 enx (USB) │ │ Neyland 24T (PC5324) │
│ g33-34 → tsys5 ch3 │ │ (mgmt TOR) │
│ ch3 → tsys5 bond (1 ln)│ │ g7 → tsys6 nic0 │
│ │ │ g3 → tsys7 nic0 │
│ tsys4 (storage+PBS) │ │ │
│ tsys5 (storage+sectest)│ │ tsys6 (RackRental) │
│ tsys1 (infra) │ │ tsys7 (RackRental) │
│ tsys3 (compute) │ │ │
│ tsys9 (infra+compute) │ │ │
└─────────────────────────┘ └──────────────────────────┘
```
### 1.2 Cross-rack trunk detail (ch1) — THE BOTTLENECK
| Property | core-sw01 (rack5) | tor3-stor (rack3) | Problem? |
|----------|-------------------|--------------------|----------|
| **Physical ports** | g13, g14, g15 (UP) | g20, g21, g22, g23 (all UP) | Asymmetry — see below |
| **LAG config** | `g(13-15,17)` mode on | `g(20-23)` mode on | g17 DOWN; g16 UP but not in LAG |
| **Active links** | **3 of 4** | **4 of 4** | Mismatch: only 3 links negotiate |
| **Hash policy** | **layer-2-3** | **layer-2-3-4** | **ASYMMETRIC** — core lacks L4 |
| **Mode** | `on` (static) | `on` (static) | No LACP negotiation/failure detection |
| **VLAN** | access vlan 1000 | access vlan 1000 | OK |
**Three root causes of cross-rack underperformance:**
1. **g16/g17 cable mismatch.** core-sw01 config says `channel-group 1` on
`g(13-15,17)`. But g17 is DOWN and g16 is UP (live, 1000/Full). The 4th
physical cable landed on g16, not g17. Result: **only 3 links active** (3 Gbps,
not the intended 4).
2. **LAG hash asymmetry.** tor3-stor uses `port-channel load-balance layer-2-3-4`
(includes TCP/UDP source+dest ports — correct for NFS with nconnect).
core-sw01 uses `port-channel load-balance layer-2-3` (no L4 ports). With
layer-2-3 hashing, **all NFS traffic between a given host pair hashes to one
physical link**. Even though the clients use `nconnect=4` (4 TCP connections
per mount), they share the same src/dst IP → same hash → **max 1 Gbps per
server pair**. This is why tsys6/7 read from tsys4/5 at ~1 Gbps, not 3-4 Gbps.
3. **Static mode (`on`) instead of LACP.** Neither switch runs LACP on the
cross-rack trunk. `mode on` provides no link-failure detection, no partner
validation, no dynamic negotiation. A dead cable stays "active" until
manually discovered.
### 1.3 Per-host network state (ground truth)
| Host | Rack | mgmt NIC | storage NIC | bond0 | Hash | Active slaves | Speed | Storage IP |
|------|------|----------|-------------|-------|------|---------------|-------|------------|
| tsys1 | 5 | nic0 → core g8 | enx (USB dongle) | bond0 (1×USB) | layer2+3 | 1 | 1G | 10.100.100.1 |
| tsys3 | 5 | nic0 → core | — (no bond) | — | — | — | — | 10.100.100.3 |
| tsys4 | 5 | nic0 → core g8 | enx8cae4ccda926 (USB) → core g31 | bond0 (1×USB) | layer2+3 | 1 | 1G | 10.100.100.4 |
| tsys5 | 5 | nic0 → core g19 | nic1 → core g34 (ch3) | bond0 | layer2+3 | **1 of 2** (nic2 DOWN) | 1G | 10.100.100.5 |
| tsys6 | 3 | nic0 → tor3-mgmt g7 | nic1+nic2 → tor3-stor g8/g9 (ch2) | bond0 | **layer3+4** | **2 of 2** | **2G** | 10.100.100.6 |
| tsys7 | 3 | nic0 → tor3-mgmt g3 | nic1+nic2 → tor3-stor g10/g11 (ch3) | bond0 | **layer3+4** | **2 of 2** | **2G** | 10.100.100.7 |
| tsys9 | 5 | nic0 → core | enx (USB dongle) | bond0 (1×USB) | layer2+3 | 1 | 1G | 10.100.100.9 |
**Key observations:**
- **tsys6/7 are the ONLY hosts with working 2G LACP** (layer3+4, 2 active slaves). Validated previously.
- **tsys4/9 use USB dongles** for storage — single 1G, no bond redundancy.
- **tsys5 bond is degraded** — nic2 is DOWN (no cable). Only nic1 active. This is
the LACP problem the operator has been struggling with. The switch side (core-sw01
ch3) shows 1 active member (g34), and tsys5's bond0 reports 1 active slave.
- **tsys1 also uses a USB dongle** for storage.
- **Hash inconsistency:** tsys6/7 use layer3+4 (correct for nconnect), tsys4/5
use layer2+3 (suboptimal for NFS multi-connection).
### 1.4 Switch inventory (SNMP + conman ground truth)
| Switch | IP | Model | Firmware | Role | Console |
|--------|----|-------|----------|------|---------|
| pfv-core-sw01 | 192.168.0.12 | Dell PowerConnect 5448 | 2.0.0.46 | Core (rack5, combined mgmt+storage) | conman port 2001 |
| pfv-tor3-stor | 192.168.0.9 | Dell PowerConnect 5324 (Neyland 24T) | 2.0.1.4 | Rack3 storage TOR | conman port 2003 |
| pfv-tor3-mgmt | 192.168.0.7 | Dell PowerConnect 5324 (Neyland 24T) | (same family) | Rack3 mgmt TOR | conman port 2002 |
| (unknown) | 192.168.0.8 | Dell PowerConnect 5324 (Neyland 24T) | (same family) | Unidentified — possibly pfv-r2-tor-top | conman port 2005? |
**Switch SNMP community:** `kn3lmgmt` (read-only). All switches respond to SNMPv2c.
**Console access:** conman on pfv-tsys4:7890 (7 consoles). Fixed during this audit
(udev symlink naming bug — singular vs plural — prevented consoles from working
after reboot).
### 1.5 Port error counters (core-sw01)
| Port | In Errors | Notes |
|------|-----------|-------|
| **g9** | **2902** | Connected to 192.168.0.21 (device unknown). Investigate CRC/cable. |
| **g38** | **590** | On VLAN 1000 (storage). Connected to a host on the storage VLAN. |
| **g26** | **73** | Connected to a management-network device. |
| All others | 0 | Healthy. |
tor3-stor shows **zero errors** on all active ports.
---
## 2. Storage topology (CORRECTED — current ground truth)
### 2.1 Storage tier definitions
| Tier | Definition | Performance | Use case |
|------|-----------|-------------|----------|
| **Tier 1** | NVMe / SSD on internal SATA/SAS | 200-3000 MB/s, high IOPS | OS drives, high-IOPS workloads |
| **Tier 2** | HDD on internal SATA/SAS | 80-150 MB/s, moderate IOPS | Production VM OS drives |
| **Tier 3** | HDD/SSD on USB "toaster" / USB adapter | 30-60 MB/s, low IOPS, unreliable | Bulk/backup/scratch only |
### 2.2 tsys4 disk inventory (CHANGED since last audit)
| Device | Model | Size | Interface | Mount | NFS export | Tier | Notes |
|--------|-------|------|-----------|-------|------------|------|-------|
| sda | Hitachi HDS723020BLA642 | 2.0 TB | Internal SATA | /mnt/albert | (not exported) | **Tier 2** | NEW — not in Proxmox storage.cfg, not exported. 0% used. |
| sdb | HITACHI HUA723020ALA640 | 2.0 TB | Internal SATA | /mnt/tsys4/D5 | D5 | Tier 2 | 13% used (220 GB). 7200 rpm. |
| sdc | WDC WD30EFRX (Red) | 3.0 TB | Internal SATA | /mnt/tsys4/D2 | D2 | Tier 2 | 7% used (170 GB). 5400 rpm. **17 VMs on this spindle.** |
| sdd | WDC WD10EZRX | 1.0 TB | Internal SATA | (pve boot/swap/local-lvm) | — | Tier 2 | Proxmox OS disk. |
| sde | ST500LM021 (Seagate) | 500 GB | **USB** | /mnt/tsys4/D3 | D3 | **Tier 3** | **CHANGED from SK hynix SSD to Seagate HDD.** 0% used. |
| sdf | WDC WD10EARS | 1.0 TB | **USB** | /mnt/tsys4/D1 | D1 | **Tier 3** | 0% used. 1 reallocated sector (SMART). |
| sdg | WDC WD50NDZW (easystore) | 5.0 TB | **USB** | /mnt/backup | (not exported) | **Tier 3** | NEW — bulk backup disk. 0% used. |
**Changes from AUDIT-2026-07-29:**
- **D3 changed:** SK hynix SC300 512GB SSD → Seagate ST500LM021 500GB HDD (still on USB).
D3 is now Tier 3 (was previously listed as unreliable USB SSD).
- **/mnt/albert added:** Hitachi 2TB internal SATA. Not exported, not in Proxmox.
Potential new Tier 2 storage.
- **/mnt/backup added:** WD 5TB USB easystore. Tier 3 bulk backup.
- **D7 removed:** Previously orphaned export (held DellOpenManageEnterprise). Now gone.
### 2.3 tsys5 disk inventory (MAJOR CHANGES — new NVMe + SSD)
| Device | Model | Size | Interface | Mount | NFS/Local | Tier | Notes |
|--------|-------|------|-----------|-------|-----------|------|-------|
| sda | ST1000VN002 (IronWolf) | 1.0 TB | Internal SATA | (not mounted) | — | Tier 2 | **Was S3.** Not in fstab, not mounted. Stale export remains in /etc/exports. |
| sdb | SK hynix SC300B | 512 GB | Internal SATA | (not mounted) | — | **Tier 1** | **NEW — relocated from tsys4 USB enclosure.** Not mounted, not in fstab, not in storage.cfg. |
| sdc | HITACHI HUS724020ALA640 | 2.0 TB | Internal SAS | (pve boot/swap/local-lvm) | — | Tier 2 | Proxmox OS disk. |
| sdd | Samsung SSD 860 PRO | 256 GB | Internal SAS | /mnt/pfv-tsys5/ssd | `ssd` dir (local) | **Tier 1** | **93% full!** Used by ultix-streaming (5111). |
| sde | ST1000VN002 (IronWolf) | 1.0 TB | Internal SAS | /mnt/pfv-tsys5/S1 | S1 (NFS + local-nonprod) | Tier 2 | 11% used. 5900 rpm. |
| sdf | ST1000VN002 (IronWolf) | 1.0 TB | Internal SAS | /mnt/pfv-tsys5/S2 | S2 (NFS) | Tier 2 | 4% used. |
| **nvme0n1** | **CT500P1SSD8 (Crucial)** | **500 GB** | **NVMe** | **(not mounted)** | — | **Tier 1** | **NEW — not mounted, not in fstab, not in storage.cfg.** 34K power-on hours. Healthy. |
**Changes from AUDIT-2026-07-29:**
- **NVMe added:** Crucial CT500P1 500GB. Not yet configured. This is the highest-
performance local storage in the fleet (true NVMe).
- **SK hynix SSD relocated:** Moved from tsys4 USB enclosure to tsys5 internal
SATA. Not yet mounted/configured.
- **S3 unmounted:** ST1000VN002 (was S3) is present but fstab entry is commented
out. /etc/exports still exports S3 (stale).
- **S4 gone:** Old Toshiba 458GB is no longer present. fstab entry commented.
storage.cfg still has a broken `dir: S4` entry (points to root filesystem).
- **S1/S2 drives changed:** Both are now ST1000VN002 IronWolf 1TB (were "Seagate
916GB" in old audit).
- **SSD nearly full:** Samsung 860 PRO at 93% — needs attention.
### 2.4 NFS export map (current, verified)
| Server | Export | NFS ID | Disk | Tier | Used |
|--------|--------|--------|------|------|------|
| tsys4 | /mnt/tsys4/D1 | D1 | WDC WD10EARS 1TB | Tier 3 (USB) | 0% |
| tsys4 | /mnt/tsys4/D2 | D2 | WDC Red 3TB | Tier 2 | 7% (170 GB) |
| tsys4 | /mnt/tsys4/D3 | D3 | Seagate 500GB | Tier 3 (USB) | 0% |
| tsys4 | /mnt/tsys4/D5 | D5 | Hitachi 2TB | Tier 2 | 13% (220 GB) |
| tsys5 | /mnt/pfv-tsys5/S1 | S1 | IronWolf 1TB | Tier 2 | 11% (96 GB) |
| tsys5 | /mnt/pfv-tsys5/S2 | S2 | IronWolf 1TB | Tier 2 | 4% (32 GB) |
| tsys5 | /mnt/pfv-tsys5/S3 | S3 | (stale — disk not mounted) | — | — |
### 2.5 NFS client mount status (nconnect)
| Host | Mounts from tsys4 | Mounts from tsys5 | nconnect=4? | Hash |
|------|-------------------|-------------------|-------------|------|
| tsys4 | (NFS server, no client mounts) | — | — | layer2+3 |
| tsys5 | D2, D3, D5 | (NFS server) | **NO nconnect** | layer2+3 |
| tsys6 | D1, D2, D3, D5 | S1, S2, S3, S4, T5-SSD | **YES** (9 mounts) | layer3+4 |
| tsys7 | D1, D2, D3, D5 | S1, S2, S3, S4, T5-SSD | **YES** (9 mounts) | layer3+4 |
**tsys5 is missing nconnect** on its 3 NFS client mounts (D2/D3/D5 from tsys4).
**tsys4 is missing nconnect** entirely (but it's primarily an NFS server, not a client).
### 2.6 Per-spindle IOPS load (running VMs only)
| Spindle | Server | NFS-visible VMs | Local-only VMs | Total | Tier | Notes |
|---------|--------|-----------------|----------------|-------|------|-------|
| **D2** (3TB Red) | tsys4 | **13** | 0 | **13** | Tier 2 | Still the worst hotspot. VMs: 100,101,104,105,108,114,117,509,600,702,704,901,904 |
| D5 (2TB Hitachi) | tsys4 | 4 | 0 | 4 | Tier 2 | VMs: 106,313,600(disk0),903 |
| S1 (1TB IronWolf) | tsys5 | 1 | 0 | 1 | Tier 2 | VM: 702 (hfnoc-uisp, 100GB) |
| S2 (1TB IronWolf) | tsys5 | 4 | 0 | 4 | Tier 2 | VMs: 103,703,705,902,905 |
| S4 (local-nonprod) | tsys5 | 0 | **12** (stopped sandboxes) | 12 idle | Tier 2 | All stopped. Low priority. |
| D3 (500GB Seagate USB) | tsys4 | 0 | 0 | 0 | **Tier 3** | Empty |
| D1 (1TB WD USB) | tsys4 | 0 | 0 | 0 | **Tier 3** | Empty |
| ssd (Samsung 860 PRO) | tsys5 | 0 | 1 | 1 | Tier 1 | VM 5111 (ultix-streaming, 288GB) |
**D2 still carries 13 running VMs** — the IOPS hotspot persists.
---
## 3. Host capacity (live ground truth, 2026-07-30)
| Host | CPU | Threads | RAM | Running VMs | Actual RAM% | Load | CPU busy |
|------|-----|---------|-----|-------------|-------------|------|----------|
| tsys1 | i7-4770 Haswell (2013) | 8 | 31 GB | 9 | **57%** | 1.1 | ~4% |
| tsys3 | Xeon E3-1535M v5 Skylake (2015) | 8 | 31 GB | 1 | 10% | 0.3 | 0% |
| tsys4 | Xeon E3-1246 v3 Haswell (2013) | 8 | 16 GB | 1 | 15% | 1.8 | 0% |
| tsys5 | Xeon E5620 Westmere (2010) **single CPU** | 8 | 94 GB | 4 (+22 stopped) | 15% | 3.3 | ~5% |
| tsys6 | 2× Xeon E5530 Nehalem (2009) | 16 | 126 GB | 2 | 12% | 0.7 | 0% |
| tsys7 | 2× Xeon E5-2630 v2 Ivy Bridge (2013) | 24 | 189 GB | 5 | 7% | 1.0 | ~1% |
| tsys9 | i5-10500 Comet Lake (2020) | 12 | 23 GB | 6 | **69%** | 0.3 | ~1% |
**Changes since AUDIT-2026-07-29:**
- **tsys1 RAM dropped 73%→57%** — some VMs apparently migrated/stopped.
- **tsys9 RAM 62%→69%** — approaching 80% goal.
- **tsys6 wnode-tsys6 grew to 64GB RAM** (was 32GB in old audit).
- **All other hosts healthy** — well under 80%.
---
## 4. Fleet consistency audit
### 4.1 PVE/kernel versions
| Host | PVE | Kernel | Status |
|------|-----|--------|--------|
| tsys1 | 9.2.5 | 7.0.14-6-pve | Current ✓ |
| tsys3 | 9.2.5 | 7.0.14-6-pve | Current ✓ |
| **tsys4** | **9.1.5** | **6.17.9-1-pve** | **BEHIND — needs upgrade** |
| tsys5 | 9.2.5 | 7.0.14-6-pve | Current ✓ |
| tsys6 | 9.2.5 | 7.0.14-6-pve | Current ✓ |
| tsys7 | 9.2.5 | 7.0.14-6-pve | Current ✓ |
| tsys9 | 9.2.5 | 7.0.14-6-pve | Current ✓ |
### 4.2 Performance tuning state
| Host | Governor | Swappiness | TCP CC | rmem/wmem_max | Tuned profile | Bond hash | nconnect |
|------|----------|------------|--------|---------------|---------------|-----------|----------|
| tsys1 | performance | 10 | bbr | 128MB | virtual-host | layer2+3 | N/A (client) |
| tsys3 | performance | 10 | bbr | 128MB | virtual-host | — | N/A |
| **tsys4** | **performance** | **1** | **bbr** | **16MB** | **throughput-performance** | **layer2+3** | **0** |
| **tsys5** | **N/A** (no driver) | **1** | **bbr** | **128MB** | **network-throughput** | **layer2+3** | **0** |
| tsys6 | performance | 10 | bbr | 128MB | virtual-host | **layer3+4** | **24** (9 mounts × 4... actually 6 options lines) |
| tsys7 | performance | 10 | bbr | 128MB | virtual-host | **layer3+4** | **24** |
| tsys9 | performance | 10 | bbr | 128MB | virtual-host | layer2+3 | N/A |
**Inconsistencies:**
- **tsys4:** rmem/wmem = 16 MB (fleet standard: 128 MB). Tuned profile wrong
(`throughput-performance` should be `network-throughput`). Missing nconnect.
- **tsys5:** Missing nconnect on NFS client mounts. No cpufreq driver (Westmere —
expected, not a bug).
- **tsys4/5 bond hash = layer2+3** — should be layer3+4 (like tsys6/7).
---
## 5. VM inventory + config audit (running VMs only)
### 5.1 Per-VM disk + CPU + network settings
> `cpu: host` = best (full instruction set passthrough). `x86-64-v2-AES` = good
> (nested-virt-safe baseline). `cache=writethrough` = safe but slow for NFS.
> `iothread=1` = present on most. `agent: 1` = qemu-guest-agent enabled.
| VMID | Name | Host | vCPU | CPU type | RAM | Disk store | Cache | iothread | qga | Notes |
|------|------|------|------|----------|-----|-----------|-------|----------|-----|-------|
| 100 | pfv-bms | tsys1 | 2 | host | 4G | D2 (raw) | — | — | ✓ | discard=on,ssd=1 |
| 101 | tsys-ca | tsys1 | 2 | v2-AES | 2G | D2 (virtio) | — | ✓ | — | no nested-virt |
| 103 | netinfra-01 | tsys1 | 2 | v2-AES | 4G | S2 | — | ✓ | — | |
| 104 | librenms | tsys1 | 2 | host | 2G | D2 | — | ✓ | ✓ | |
| 105 | proxmox-dc | tsys1 | 2 | host | 2G | D2 | — | ✓ | ✓ | |
| 106 | cnode3 | tsys1 | 4 | host | 4G | D5 | **writethrough** | ✓ | ✓ | |
| 108 | ucs-01 | tsys1 | 2 | host | 8G | D2 | **writethrough** | ✓ | ✓ | |
| 114 | kali-tsys | tsys1 | 2 | host | 2G | D2 | **writethrough** | ✓ | ✓ | |
| 117 | workbench | tsys1 | 2 | host | 4G | D2 | **writethrough** | ✓ | ✓ | |
| 313 | wnode-tsys3 | tsys3 | 8 | host | 28G | D5 | **writethrough** | ✓ | ✓ | |
| 400 | PBS | tsys4 | 2 | — | 2G | local-lvm | — | — | — | backup server |
| 509 | wnode-tsys5 | tsys5 | 2 | host | 32G | D2 (virtio) | — | ✓ | — | low vCPU (2) for k8s wnode |
| 5111 | ultix-streaming | tsys5 | 4 | — | 9G | ssd (local) | — | — | — | 288GB on SSD (93% full) |
| 5112 | ultix-offstage | tsys5 | 4 | — | 6G | local-lvm | — | — | — | 288GB |
| 100 | wnode-tsys6 | tsys6 | 2 | host | 64G | S4 | — | ✓ | — | low vCPU (2), high RAM |
| 600 | tsys-awx | tsys6 | 2 | host | 12G | D5 | **writethrough** | ✓ | ✓ | |
| 701 | wnode-tsys7 | tsys7 | 4 | host | 32G | S3 (virtio) | — | ✓ | — | |
| 702 | hfnoc-uisp | tsys7 | 2 | host | 8G | S1 | — | ✓ | ✓ | 100GB disk |
| 703 | rr-middleware | tsys7 | 2 | host | 2G | S2 | **writethrough** | ✓ | ✓ | |
| 704 | TCTC | tsys7 | 4 | host | 6G | D2 (virtio) | — | ✓ | — | |
| 705 | cnode2 | tsys7 | 4 | host | 4G | S2 | **writethrough** | ✓ | ✓ | |
| 901 | tsys-siem | tsys9 | 2 | host | 8G | D2 | **writethrough** | ✓ | ✓ | 132GB disk |
| 902 | ucs-02 | tsys9 | 2 | host | 8G | S2 | — | ✓ | ✓ | 50GB disk |
| 903 | kali-rd | tsys9 | 2 | host | 2G | D5 | **writethrough** | ✓ | ✓ | |
| 904 | netinfra-02 | tsys9 | 2 | v2-AES | 4G | D2 | — | ✓ | — | |
| 905 | wnode-tsys9 | tsys9 | 4 | v2-AES | 4G | S2 | — | ✓ | ✓ | target: grow to 6c/8G |
| 906 | cnode1 | tsys9 | 2 | host | 4G | S3 | — | ✓ | — | |
### 5.2 VM optimization findings
| Finding | VMs affected | Impact | Fix |
|---------|-------------|--------|-----|
| **cache=writethrough on NFS** | 106,108,114,117,313,600,703,705,901,903 | Writethrough forces synchronous writes — slow on NFS. `writeback` or `none` is better for NFS-backed qcow2. | Change cache mode (requires VM stop/start) |
| **Mixed CPU types** | Some `host`, some `x86-64-v2-AES` | Prevents migration between hosts with different CPU types. K8s cnodes/wnodes should match. | Standardize per workload tier |
| **Low vCPU on k8s wnodes** | wnode-tsys5 (2c), wnode-tsys6 (2c) | K8s workers undersized for compute workloads | Grow after migrations free RAM |
| **VM 500 references D7** | DellOpenManageEnterprise (stopped) | D7 export no longer exists on tsys4 | Delete or re-disk before starting |
| **qga inconsistent** | Several VMs missing agent:1 | No guest-agent communication | Enable qga fleet-wide |
---
## 6. Console infrastructure status (fixed during this audit)
**Bug found + fixed:** `console/generate-config.sh` wrote udev rules with
`SYMLINK+="console/$name"` (singular) but ser2net.yaml opened
`/dev/consoles/$name` (plural). They never matched. After every reboot, all 7
console ports failed until `setup.sh`'s manual fallback re-created symlinks.
**Fix applied:** Changed udev rule to `SYMLINK+="consoles/$name"`. Re-created
all 7 symlinks manually on pfv-tsys4. Restarted ser2net + conmand. All 7
consoles now working (verified via conman-console.py).
**Also fixed:** stale conmand process (pid 988) holding config lock, preventing
conmand systemd service from starting.
---
## 7. Findings summary (prioritized)
### Critical (cross-rack performance)
| # | Finding | Impact | Type |
|---|---------|--------|------|
| 1 | **core-sw01 LAG hash = layer-2-3** (no L4 ports) | All NFS traffic between a given host pair caps at 1 Gbps | Switch config |
| 2 | **core-sw01 ch1 cable on g16, not g17** | Only 3 of 4 cross-rack links active (3 Gbps, not 4) | Switch config |
| 3 | **Both switches use `mode on`** (static, no LACP) | No failure detection, no partner validation | Switch config |
| 4 | **tsys5 bond0 degraded** (1 of 2 slaves) | Single link to storage, no redundancy | Physical (cable) |
### High (storage configuration)
| # | Finding | Impact | Type |
|---|---------|--------|------|
| 5 | **tsys5 NVMe not configured** (CT500P1 500GB) | Best local storage in fleet sitting unused | Config |
| 6 | **tsys5 SK hynix SSD not configured** (512GB) | Relocated from tsys4, not mounted | Config |
| 7 | **D2 still carries 13 running VMs** | IOPS hotspot persists | VM placement |
| 8 | **tsys5 SSD 93% full** | Samsung 860 PRO nearly exhausted | Capacity |
| 9 | **S3/S4 stale on tsys5** | Broken exports, stale storage.cfg | Config |
### Medium (fleet consistency)
| # | Finding | Impact | Type |
|---|---------|--------|------|
| 10 | **tsys4 on PVE 9.1.5/kernel 6.17** | Behind fleet (9.2.5/7.0.14) | Upgrade |
| 11 | **tsys4 rmem/wmem = 16MB** | Suboptimal TCP buffers for NFS | Tuning |
| 12 | **tsys4/5 bond hash = layer2+3** | Suboptimal for nconnect NFS | Tuning |
| 13 | **tsys5 missing nconnect** | NFS client mounts to tsys4 lack multi-connection | Tuning |
| 14 | **cache=writethrough on 10+ VMs** | Synchronous writes slow NFS | VM config |
| 15 | **Stale tsys8 switch config** (tor3-stor ch4) | Dead LAG group for retired host | Cleanup |
### Low (monitoring / investigation)
| # | Finding | Impact | Type |
|---|---------|--------|------|
| 16 | **core-sw01 port errors** (g9:2902, g38:590, g26:73) | Possible cable/CRC issues | Investigate |
| 17 | **No continuous observability** | Only point-in-time check.sh snapshots | Monitoring |
| 18 | **/mnt/albert unused** (tsys4 Hitachi 2TB) | Potential new Tier 2 storage | Config |
| 19 | **VM 500 references non-existent D7** | Would fail on boot | Cleanup |
---
## 9. Observability stack (operator direction)
The operator has defined a clear monitoring architecture with three tools,
each serving a distinct role. Do NOT duplicate functionality across tools.
### 9.1 Current architecture
| Tool | Where it runs | Scope | Role |
|------|---------------|-------|------|
| **Beszel** | Cloudron VPS (Reston, VA) | Tailscale-connected hosts | CPU/RAM/disk/time-series metrics on all Proxmox hosts |
| **Uptime Kuma** | Cloudron VPS (Reston, VA) | All hosts + services | Up/down status + alerting via Pushover |
| **LibreNMS** (VMID 104, tsys1) | On-prem (R&D cluster) | Non-Tailscale devices only | SNMP polling for switches + devices that can't run Beszel agent |
| **Home Assistant** (VMID 100, tsys1) | On-prem (R&D cluster) | Physical infrastructure | Power/temperature instrumentation + alerting (UPS, PDU outlets, etc.) |
### 9.2 Division of responsibility (no duplication)
| Metric class | Tool | Notes |
|-------------|------|-------|
| CPU / RAM / disk / network time-series | **Beszel** | All Proxmox hosts (Tailscale-connected) |
| Up/down alerting (hosts + services) | **Uptime Kuma** | Pushover notifications |
| SNMP polling (switches, non-Tailscale gear) | **LibreNMS** | Port counters, LAG status, interface errors, switch health. Fill the gap Beszel can't cover (switches have no Beszel agent) |
| Power / temperature / physical env | **Home Assistant** | UPS (NUT), PDU outlets, temperature sensors. Alerting via HA automations |
### 9.3 Saturday "OAM Day" plan (2026-08-01)
The operator has designated Saturday as a dedicated operations/admin/management
day with the goal of achieving **100% instrumentation coverage**:
- [ ] Up/down alerting on ALL hosts + key services (Uptime Kuma → Pushover)
- [ ] Centralized syslog (tool TBD — candidates: dedicated syslog VM, rsyslog
relay, or Loki/Grafana stack)
- [ ] SNMP instrumentation: wire LibreNMS for all 4 switches + any non-Tailscale
devices (community: `kn3lmgmt`, IPs: 192.168.0.7/8/9/12)
- [ ] Beszel agent coverage on all 7 Proxmox hosts
- [ ] Home Assistant: wire power/temp alerting (UPS via NUT already live, PDU
via powerman, any temp sensors)
- [ ] Verify alerting paths end-to-end (test each alert fires correctly)
> Much of the groundwork is already done: NUT is live on tsys1, powerman is
> live on tsys1, LibreNMS (VMID 104) is running, conman console logging is live
> on tsys4, check.sh provides point-in-time snapshots. Saturday is about wiring
> continuous monitoring + alerting on top of these.
---
## 8. Recommendations (for operator review — NO changes applied)
### 8.1 Switch changes (require maintenance window + operator approval)
1. **Fix core-sw01 ch1 member list:** `g(13-15,17)` → `g(13-16)`. This makes
the 4th live cable (g16) part of the LAG.
2. **Fix core-sw01 LAG hash:** `layer-2-3` → `layer-2-3-4` (match tor3-stor).
This unlocks multi-link distribution for nconnect NFS traffic.
3. **Convert trunk to LACP:** Change `mode on` → `mode active` on both switches
for the cross-rack trunk (ch1). Enables failure detection + auto-negotiation.
4. **Remove stale tsys8 config:** Delete ch4 + g13/g14 channel-group on tor3-stor.
5. **Investigate port errors:** g9 (2902 inErr), g38 (590 inErr), g26 (73 inErr)
on core-sw01.
> **Recommended order:** Fix #2 (hash) + #1 (member) first — these are the
> highest-impact changes with the lowest risk. LACP conversion (#3) is optional
> if the static trunk is working reliably otherwise. All changes can be done
> read-only-verified via the conman + SNMP tooling in this repo.
### 8.2 Storage configuration (host-side, no switch changes needed)
1. **Mount + configure tsys5 NVMe** (CT500P1 500GB) as LVM-thin (`nvme-local`)
per [`TODO.md`](TODO.md) §3. Use for wnode-tsys5 boot disk (highest impact)
and sectestbed scratch.
2. **Mount + configure tsys5 SK hynix SSD** (512GB). Add as `dir: ssd2` or
similar. Offloads the 93%-full Samsung 860 PRO.
3. **Clean S3/S4:** Remove stale S3 export from /etc/exports. Fix/remove broken
`dir: S4` entry in storage.cfg.
4. **Decide on /mnt/albert** (tsys4 Hitachi 2TB): export as new NFS storage or
keep local-only for PBS scratch.
### 8.3 Fleet consistency + tuning (host-side)
1. **Upgrade tsys4** to PVE 9.2.5 / kernel 7.0.14 (matches fleet).
2. **Apply apply-tunings.sh --apply** to tsys4 and tsys5:
- Fix rmem/wmem to 128MB (tsys4)
- Fix tuned profile (tsys4 → network-throughput)
- Add nconnect=4 to tsys5 NFS client mounts
- Fix bond hash to layer3+4 (tsys4/5 — requires ifreload, brief network drop)
3. **Audit VM cache modes:** Change writethrough → writeback or none for NFS-
backed qcow2 disks (requires VM stop/start).
### 8.4 VM placement rebalancing (refer to [`CAPACITY-GOALS.md`](CAPACITY-GOALS.md))
The new NVMe + SSD on tsys5, the unmounted /mnt/albert on tsys4, and the 3 empty
Tier 3 USB disks (D1, D3, /mnt/backup) create opportunities for IOPS spreading
that didn't exist in the 07-29 audit. Detailed placement plan deferred to the
operator review of this document.
proxmox/docs/AUDIT-2026-08-05.md
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# Ground-Truth Audit — 2026-08-05 # proxmox/docs/AUDIT-2026-08-05.md
> **Authoritative fleet audit** performed by Crush (GLM-5.2) via read-only > **Documentation moved to Discourse — the canonical source of truth.**
> network discovery (nmap, SNMP, SSH, API queries). Supersedes
> [`AUDIT-2026-07-30.md`](AUDIT-2026-07-30.md) for all fleet state.
> >
> **Method:** Tailscale `status`, nmap ping sweep (192.168.0-3.0/24), SNMP > **Audit snapshot 2026-08-05 (current authoritative)**
> walks (`kn3lmgmt` community), SSH via `tests/remote.sh` + `netinfra/dns-cluster-setup/remote-dns.sh`, >
> Proxmox `qm list`/`pvecm`, Docker/container inspection. > **Read it here:** https://community.turnsys.com/t/298
>
## TL;DR — What Changed Since 2026-07-30 > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
> Do not update content here — edit the Discourse wiki topic instead.*
The fleet grew significantly and the repository was restructured into a
module/subproject layout. Headline deltas:
| Metric | 2026-07-30 | 2026-08-05 | Δ |
|--------|-----------|-----------|---|
| VMs (running) | 28 | **63** | +125% |
| DNS zones | 124 | **167** | +35% |
| DHCP active leases | 333 | **98** (unique active) | 431 total active binding-state entries |
| Proxmox hosts | 7 | 7 | — |
| PVE version (fleet) | mixed (9.1.5–9.2.5) | **all 9.2.5** | tsys4 upgraded |
| Tailscale nodes | ~30 | **80** | full 3-tier env mirror |
| k8s cluster | LIVE (3-node HA) | **DOWN** | cnode wiped, no quorum |
| netinfra-02 | redundant secondary | **WIPED** | needs rebuild |
## Repository Restructure (DONE by operator)
Top-level dirs were consolidated into modules. **Old flat dirs no longer
exist** at the repo root:
| Was (repo root) | Now |
|-----------------|-----|
| `provisioning/` | `archive/provisioning/` — superseded by **KNELIAC** project (`/home/reachableceo/projects/KNELIAC`) |
| `powerman/` `console/` `ups/` | `dcinfra/{powerman,console,ups}/` |
| `dns-cluster-setup/` `switches/` `dhcp/` | `netinfra/{dns-cluster-setup,switches,dhcp}/` |
| `perf/` | `proxmox/perf/` (+ `proxmox/perf/scripts/`) |
Current repo root: `archive/ awx/ dcinfra/ docs/ k8s/ netinfra/ proxmox/ tests/ vendor/` + `logs/ returned-logs/`.
> **WARNING:** `README.md`, `AGENTS.md`, and `docs/docmap.md` still reference
> the OLD paths. These are being updated in this same session.
## Network Switches
SNMP community: `kn3lmgmt` (read) / `kn3lwrite` (write). SNMP responds from
the workstation LAN (no ACL — earlier "filtered" was just a wrong community).
| IP | sysName | Model | Status |
|----|---------|-------|--------|
| 192.168.0.12 | pfv-core-sw01 | PowerConnect 5448 | **UP** (Dell, core, rack5) |
| 192.168.0.7 | pfv-r3-tor-mgmt | Neyland 24T (PC5324) | **UP** (rack3 mgmt TOR) |
| 192.168.0.9 | pfv-r3-tor-stor | Neyland 24T (PC5324) | **UP** (rack3 storage TOR) |
| 192.168.0.8 | subodev-torsw01 | Neyland 24T (PC5324) | **UP** (was "unidentified" — now named) |
| 192.168.0.5 | pfv-r2-tor-top | (unknown) | **OFFLINE** — no ping, no SNMP |
**Ports open on switches:** TCP 22 (ssh), 23 (telnet), 80 (http web UI). UDP
161 (SNMP) responds with `kn3lmgmt`.
### LACP / Cross-Rack Trunk (core-sw01 ch1)
- Operator reports **LACP is fixed** (was static `mode on`, hash layer-2-3).
- SNMP confirms **ch1 ifIndex=49 is UP**; ch3 ifIndex=51 also UP.
- ch1 reports ifSpeed=1000Mbps — the Dell FastPath switch does not report
aggregate bundle speed via standard ifSpeed, so **member count + hash
algorithm need console verification** (conman requires a PTY — run manually):
```bash
conman -d pfv-tsys4:7890 -f pfv-core-sw01
# then: show interfaces status port-channel 1
# show running-config | begin port channel
```
## Proxmox Hosts (7 standalone, managed via PDM)
All **PVE 9.2.5** (tsys4 upgraded from 9.1.5 — resolves old STATUS item).
**Not clustered** — standalone installs (corosync Expected votes=1 each).
| Host | RAM used/total | VMs | Uptime | Notes |
|------|---------------|-----|--------|-------|
| pfv-tsys1 | 71% (22.7/32 GB) | 8 | 6d | Highest RAM use in fleet |
| pfv-tsys3 | 12% (3.7/32 GB) | 2 | 9d | under-utilized |
| pfv-tsys4 | 18% (2.8/16 GB) | 2 | 5d | storage server, kernel 7.0.14-8 |
| pfv-tsys5 | 48% (46.8/97 GB) | **32** | 6d | sectestbed+preprod host |
| pfv-tsys6 | 14% (18/129 GB) | 5 | 10d | 129 GB RAM, wnode+cnode3 |
| pfv-tsys7 | 30% (58.8/193 GB) | 11 | 10d | **193 GB RAM**, prod workloads |
| pfv-tsys9 | 30% (7.2/24 GB) | 3 | 9d | netinfra-02 + wnode |
**Memory capacity goal (≤80%): PASS fleet-wide.** Highest is tsys1 at 71%.
### tsys5 Storage (RESOLVED)
Old STATUS item "NVMe + SSD not configured" is **FIXED**. All storage active:
| Disk | Mount | Use |
|------|-------|-----|
| nvme0n1 (CT500P1 500GB) | /mnt/nvme (PVE: NVME dir) | 49% used |
| sdb (SK hynix 512GB SSD) | /mnt/ssd2 (PVE: ssd2 dir) | 14% used |
| sdd (Samsung 860 PRO 256GB) | /mnt/pfv-tsys5/ssd (PVE: SSD dir) | 1% |
| sde (ST1000VN002 1TB) | /mnt/pfv-tsys5/S1 | 6% |
| sdf (ST1000VN002 1TB) | /mnt/pfv-tsys5/S2 | 7% |
| local-lvm (1.67 TB thin) | LVM | 6.9% |
NFS from tsys4: D2, D3, D5 all mounted and active.
## DNS / NTP / DHCP (netinfra)
### pfv-netinfra-01 (PRIMARY — 192.168.3.252, TS 100.70.181.72)
| Service | State | Detail |
|---------|-------|--------|
| **Technitium DNS** | UP (Docker `tsys-dns`, 5d) | Container, NOT systemd. Config: `/home/localuser/services/technitium/config` → `/etc/dns`. **167 zones.** Port 5380 via docker-proxy. |
| **Pi-hole** | UP (healthy, 26h) | `/dev/shm` = **1.0 GB** (operator hotfix applied). Healthcheck = `dig pi.hole` (DNS-resolution based). |
| **NTP** | UP (`ntpsec`, NOT chrony) | Clock synchronized. |
| **DHCP** | UP (`isc-dhcp-server`) | **753 active leases** (was 333). |
### pfv-netinfra-02 (SECONDARY — 192.168.3.253, TS 100.71.171.20)
**WIPED.** Reachable on Tailscale (host key changed, cleared from known_hosts)
but **SSH key auth fails** (`Permission denied (publickey,password)`). Needs
full rebuild as redundant node — see Pending.
## Kubernetes (pfv-k8s) — DOWN
| Node | Tailscale IP | k3s API :6443 | Location |
|------|-------------|---------------|----------|
| pfv-k8s-cnode1 | 100.125.134.53 | **closed** | VM 102 on tsys1 |
| pfv-k8s-cnode2 | 100.109.34.72 | **OPEN** | VM 705 on tsys7 |
| pfv-k8s-cnode3 | 100.106.222.18 | **closed** | VM 603 on tsys6 |
- **No etcd quorum** (≤1 of 3 members). cnode1 and cnode3 k3s not listening.
- **kubeconfig stale**: `~/.kube/config.pfv-k8s` points to `100.97.178.106:6443`
— an IP matching NO current cnode. Cluster must be rebuilt.
- Worker nodes (5) all online on Tailscale, **not joined**:
pfv-k8s-wnode-tsys3/5/6/7/9.
## Monitoring / Observability Stack
| System | Host | Status | Access |
|--------|------|--------|--------|
| LibreNMS | tsys-librenms (100.86.204.77) | UP (Tailscale) | API needs token (401) — SSH in to create |
| Uptime Kuma | status.knownelement.com | UP | API key in `~/.secrets/api-keys.env`; `/metrics` needs auth |
| Beszel | (fleet) | deployed (per STATUS) | metrics host TBD |
| Home Assistant | (HAOS VM) | configured (per STATUS) | NUT integration live |
| **Vault** | vault.knownelement.com | **Deployed, UNCONFIGURED** | API keys migration = HIGH priority TODO |
## Console Management (pfv-tsys4)
ser2net listening on all 7 ports (2001-2007) bound to Tailscale 100.70.77.93.
All 7 `/dev/consoles/<name>` symlinks present:
```
pfv-core-sw01→ttyUSB2 pfv-tor3-mgmt→ttyUSB1 pfv-tor3-stor→ttyUSB6
pfv-rrinfra-rtr→ttyUSB5 pfv-r2-tor-top→ttyUSB7 subodev-torsw→ttyUSB0
pfv-r2-sw→ttyUSB3
```
**conman requires a PTY** — cannot be driven via stdin pipe from Crush. Use an
interactive terminal, or the conman client directly.
## Tailscale Fleet (80 nodes)
Three full environment tiers now exist, each mirroring the same service set:
- **`tsys-*` (production):** tsys-awx, tsys-ca, tsys-cloudron, tsys-librenms,
tsys-proxmox-datacenter, tsys-proxmox-mailgw-01/02, tsys-siem, tsys-ucs-01/02,
tsys-umbrel, tsys-voip
- **`preprod-*`:** preprod-awx, preprod-ca, preprod-cloudron, preprod-hfnoc-uisp,
preprod-librenms, preprod-proxmox-datacenter, preprod-proxmox-mailgw,
preprod-rancherplatform, preprod-siem, preprod-voip
- **`sectestbed-*`:** sectestbed-awx, sectestbed-ca, sectestbed-cloudron,
sectestbed-hfnoc-uisp, sectestbed-k8s-cnode, sectestbed-k8s-wnode,
sectestbed-librenms, sectestbed-netinfra, sectestbed-proxmox-datacenter,
sectestbed-proxmox-mailgw, sectestbed-proxmox-pbs, sectestbed-proxmox-pve,
sectestbed-rancherplatform, sectestbed-sandbox, sectestbed-siem, sectestbed-voip
Plus: pfv-tsys1/3/4/5/6/7/9, pfv-k8s-cnode1/2/3, pfv-k8s-wnode-tsys3/5/6/7/9,
pfv-netinfra-01/02, pfv-proxmox-backup-server, pfv-rr-middleware-01/02,
pfv-bms, pfv-jetson-nano-1, pfvsvrpi, devbox-cloudron, hfnoc-uisp,
kali-rd, kali-tsys, netbird, preprod-awx, subopi-dev-3/4, subopi3,
stlpc-artroom/garage, siter-bizoffice, ultix-* (endpoints).
> **Note:** Tailscale reports `--accept-routes is false` on this workstation.
## Identified LAN Hosts (non-switch)
| IP | Identity | Evidence |
|----|----------|----------|
| 192.168.0.100 | stlpc-garage.knel.net | Linux + Postfix + xrdp |
| 192.168.0.250 | Linux storage (NFS) | SSH + rpcbind |
| 192.168.1.166 | pfv-stor1 (NAS) | Samba smbd 4 + Golang HTTP + SSH |
| 192.168.3.1 | gateway/router | Linux + xrdp |
## Divergences vs STATUS.md (2026-07-30)
1. **VM count 28→63** — sectestbed (16) + preprod (8) + new prod VMs added
2. **DNS zones 124→167**, **DHCP leases 333→753**
3. **tsys4 PVE 9.1.5→9.2.5** (was "behind fleet")
4. **tsys5 NVMe+SSD** now configured (was "not configured")
5. **tsys-umbrel + tsys-sipwise** deployed (new VMs)
6. **LACP core↔r3-stor** operator reports fixed (was #1 known issue)
7. **k8s cluster** now DOWN (was LIVE)
8. **netinfra-02** wiped (was redundant secondary)
9. **Technitium** now Docker container (was systemd dnsServer)
10. **NTP** is ntpsec (STATUS assumed chrony)
11. **Pi-hole /dev/shm** = 1 GB (operator hotfix; gravity.db healthcheck still DNS-based)
12. **Tailscale fleet** 3× larger with 3 environment tiers
## Pending / Recommended Next Actions
*(From `nextprompt` — reference only; awaiting operator direction)*
- **netinfra-02 rebuild** as redundant secondary (SSH key deploy + Technitium
zone sync + DHCP failover-peer)
- **k8s cluster rebuild** (fix wiped cnode, restore quorum, join 5 wnodes)
- **Pi-hole** add gravity.db healthcheck to compose (current check is DNS-only)
- **Vault** migrate all API keys (HIGH priority)
- **Monitoring**: deploy unpoller + netdisco to LibreNMS VM; add weathermap/smokeping
- **Home Assistant**: own all environmental monitoring/reporting
- **Benchmarking**: iperf (1gbps-per-flow verification) + fio + CPU/RAM across cluster
- **Repo gardening**: README/AGENTS/docmap path fixes (this session)
proxmox/docs/CAPACITY-GOALS.md
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# Capacity & Sizing Goals # proxmox/docs/CAPACITY-GOALS.md
**Date:** 2026-07-29 > **Documentation moved to Discourse — the canonical source of truth.**
**Status:** Authoritative. These are the operator's standing targets. Every >
fleet audit and VM-placement decision is evaluated against them. > **Capacity targets + workload placement model**
>
> Companion to [`AUDIT-2026-07-29.md`](AUDIT-2026-07-29.md) (the current > **Read it here:** https://community.turnsys.com/t/304
> placement analysis) and [`PROJECT.md`](PROJECT.md) (the fleet hardware report). >
> *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
--- > Do not update content here — edit the Discourse wiki topic instead.*
## 1. Memory target: 80% steady-state
**Rule:** Keep each node at or below **80% physical RAM utilization at steady
state.** Occasional bursts above 80% are acceptable (that is what swap is for);
the *sustained* idle-to-average load must sit at ~80% or below.
**Two metrics must both be tracked:**
| Metric | Definition | Target |
|--------|-----------|--------|
| **Actual usage** | `MemTotal - MemAvailable` from `/proc/meminfo` | **≤ 80%** steady state (the real rule) |
| **Allocation commitment** | sum of running-VM `memory:` vs host RAM | planning ceiling — keep < 100% where possible |
**Why both:** KSM (same-page merging) and virtio-balloon mean *actual* usage is
often well below the sum of VM allocations (e.g. tsys1 allocates 115% but uses
72% actual). Actual usage is the steady-state truth; allocation is the
worst-case ceiling if every VM suddenly fills its reservation. A host is
"healthy" when actual ≤ 80% **and** allocation isn't so far over 100% that a
balloon-deflate storm could OOM it.
**Tolerance:** brief actual spikes to 90-100% are fine. Persistent swap use
(>~1 GB on a steady basis) means the host is over-committed and VMs should
migrate off.
## 2. CPU target: ~50% utilization at idle
**Rule:** Ideally, nodes sit around **50% CPU utilization at idle.**
This is a *utilization* goal, not a headroom goal. The fleet is
**CPU-underutilized** (most hosts idle at 0-6%). On a shoestring budget, idle
silicon is wasted investment and (for the PowerEdge hosts) wasted electricity.
The intent is to **pack workloads** so the baseline load consumes roughly half
the compute, reserving the other half for bursts.
**Practical implications:**
- The older, power-hungry hosts (tsys6 Nehalem, tsys5 Westmere) should either be
doing useful work at ~50% or be candidates to power down / solar-gate when
idle. Running them at 0-6% wastes power per core.
- The newer, efficient hosts (tsys9 Comet Lake, tsys3 Skylake) are cheap to run
idle and are the natural home for always-on control-plane + infra.
- vCPU overcommit is fine for idle workloads; the 50% target is about *actual*
utilization, not vCPU ratios.
## 3. Workload placement model
The fleet serves three distinct workload families. Placement should follow CPU
quality + storage speed + RAM size, in that order of relevance per family.
### 3.1 ETL / HPC / cross-compile (CPU + storage bound)
Large geospatial/weather ETL, RTL/firmware simulation, cross-compile pipelines.
**Needs high IPC (modern cores) + fast storage (SSD/NVMe).** RAM is moderate
(8-32 GB per job).
| Host | CPU | Storage | Fit |
|------|-----|---------|-----|
| **tsys9** | i5-10500 Comet Lake (2020) — **best IPC in fleet** | local SSD (PNY CS900) | **Primary compute node** |
| **tsys3** | Xeon E3-1535M v5 Skylake (2015) | local NVMe (Samsung PM961) | **Fast compute node** |
| tsys2 (incoming) | i7-7820HQ Kaby Lake (2017) | NVMe 960 PRO + SSD 850 EVO | **Fast compute node** (post-rebuild) |
These three hosts have the newest CPUs and the only fast local storage. Their
wnodes should be the **compute-tier** workers, sized larger (more cores/RAM) and
labeled `workload=compute`.
### 3.2 RackRental.net — network labs on demand (RAM + IOPS bound, CPU-light)
Business idea: rent out ephemeral network labs (containerlab topologies) on
demand. Many containers / network namespaces, short-lived, mostly idle once up.
**Needs massive RAM + fast container-image pulls. CPU quality is secondary**
(labs are idle between keystrokes).
| Host | CPU | RAM | Fit |
|------|-----|-----|-----|
| **tsys7** | 2× E5-2630 v2 Ivy Bridge (2013), 24 threads | **189 GB** | **Primary RackRental host** |
| **tsys6** | 2× E5530 Nehalem (2009), 16 threads | **126 GB** | **Secondary RackRental host** |
**Verdict: tsys6/7 are the correct RackRental hosts.** Their weak CPUs are
irrelevant for idle network labs; their RAM is unmatched. Their wnodes should be
labeled `workload=rackrental`.
**Caveat (deferred):** their local-lvm is USB 2.0 portable HDD (~30 MB/s), which
is terrible for container image pulls. This is a *disk* problem, not a RAM/CPU
problem, and is deferred to the post-Friday storage-class work. RAM-wise they are
ready today.
### 3.3 Infrastructure + k8s control plane (always-on, low resource)
netinfra, UCS, LibreNMS, SIEM, tailscale-router, PBS, k3s cnodes. Lightweight,
must stay up. Lives on tsys1 + tsys9 (and the cnodes spread across hosts for
etcd diversity).
---
## 4. Host role summary (target)
| Host | CPU era | RAM | Primary role | Wnode class |
|------|---------|-----|--------------|-------------|
| tsys1 | Haswell 2013 | 32 GB (maxed) | Infra + control plane | light (4c/4G) |
| tsys2 | Kaby Lake 2017 | 32 GB | Compute (incoming) | compute |
| tsys3 | Skylake 2015 | 32 GB | Compute | compute |
| tsys4 | Haswell 2013 | 16 GB | Storage (NFS + PBS) | — |
| tsys5 | Westmere 2010 | 96 GB | Storage + fast-tier hub | compute (NVMe, post-Friday) |
| tsys6 | Nehalem 2009 | 126 GB | RackRental | rackrental |
| tsys7 | Ivy Bridge 2013 | 189 GB | RackRental | rackrental |
| tsys9 | Comet Lake 2020 | 24 GB | Infra + control plane + compute | compute (growable) |
## 5. DDR3 memory policy
**Do not blindly add RAM to tsys6/7.** They idle at 6%/9% actual usage with
117/171 GB free — they are RAM-saturated in the wrong direction (over-provisioned,
not starved). The fleet's RAM pressure is on the *infra* hosts (tsys1/5/9
over-allocated), and that is solved by **migrating VMs** to tsys6/7's existing
free RAM, not by installing sticks.
Compatibility is decisive and is documented per-host in
[`AUDIT-2026-07-29.md`](AUDIT-2026-07-29.md) §5. Short version: tsys5/6/7 require
**Registered ECC (RDIMM)**; only RDIMM sticks will POST. Consumer UDIMM
(Patriot / most Kingston) fits essentially nowhere useful here.
---
## 6. Local storage policy: ephemeral scratch, not OS drives
**Principle:** Local disk storage is a **scratch tier**, not a boot/OS tier.
VM OS drives stay on NFS (tsys4/tsys5) where redundancy is handled by spreading
across physical disks and -01/-02 HA pairs. Local storage is used for ephemeral
workloads where data loss on node failure is acceptable by definition.
### 6.1 Why OS drives stay on NFS
Individual Proxmox nodes have **no local disk redundancy** (single disk, no
RAID, no ZFS mirror). If a host's local disk dies, every VM on it is gone.
Redundancy is instead achieved at the **storage-server + application layer**:
- **-01/-02 HA pairs** (netinfra, UCS): each half on a different NFS server
- **k8s spreading**: cnode/wnode disks spread across D2/D5/S2/S3/S4 so no
single disk or server failure takes down the whole cluster
- **PBS backups**: all VMs are backed up to Proxmox Backup Server regardless of
disk tier
This is deliberate. Moving OS drives to local storage would trade NFS network
latency for single-disk-failure risk. Not worth it for persistent workloads.
### 6.2 What local storage IS good for: ephemeral scratch
Workloads that produce or consume temporary data that can be discarded on node
failure. These are exactly the workloads where NFS latency hurts most and local
IOPS help most:
| Use case | Why local scratch helps | Examples |
|----------|------------------------|---------|
| **Container image pulls** | Image layers write to local disk during pull; NFS-over-HDD is seek-bound and slow | RackRental labs, any pod startup |
| **Build artifacts** | Cross-compile / firmware builds write hundreds of small files; local SSD/NVMe is 10-100x faster than NFS-HDD | ETL, cross-compile, CI pipelines |
| **Temporary processing** | Intermediate data that doesn't need to survive a reboot | Weather/GIS transform scratch, log rotation |
| **kubelet ephemeral storage** | `emptyDir` volumes, container writable layers | All k8s pods |
### 6.3 Per-host local storage inventory and suitability
| Host | Local storage | Type | Available | Scratch-suitable? | Notes |
|------|--------------|------|-----------|-------------------|-------|
| **tsys2** | NVMe 960 PRO + SSD 850 EVO | NVMe + SSD | 512 GB + 1 TB | **Yes — best in fleet** | Incoming (post-rebuild). No NFS needed at all |
| **tsys3** | local-lvm (Samsung PM961) | NVMe | 349 GB | **Yes — excellent** | Fastest existing local storage. 0% used |
| **tsys9** | local-lvm (PNY CS900) | SSD | 136 GB | **Yes — excellent** | Low latency. 0% used |
| **tsys5** | local-lvm (Hitachi) | HDD | ~1.7 TB | Yes (bulk) | Large capacity, HDD speed. Storage host — scratch is secondary |
| **tsys1** | local-lvm | HDD | ~90 GB | Marginal (small) | Barely worth it; tsys1 is infra-loaded anyway |
| **tsys4** | local-lvm | HDD | ~62 GB | No | PBS host; minimal free space |
| **tsys6** | local-lvm (WD My Passport) | **USB 2.0 HDD** | 1.7 TB | **NO — 30 MB/s** | Slower than NFS. Do not use for VMs |
| **tsys7** | local-lvm (WD portable) | **USB 2.0 HDD** | 1.7 TB | **NO — 30 MB/s** | Slower than NFS. Do not use for VMs |
**tsys6/7 are the hard problem.** They are the RackRental hosts — exactly the
workload that benefits most from local scratch (fast container image pulls) —
but their local storage is USB 2.0 portable HDD, which is slower than
NFS-over-HDD. Options for the future:
1. **Install internal drives** (tsys6 has a disabled SAS controller; tsys7 has
5 empty SATA ports). This is the real fix — gives both RackRental hosts proper
local scratch. Deferred to a physical-hardware session.
2. **Accept NFS for image pulls** and use local-lvm only for swap/temp that
tolerates 30 MB/s. Functional but sluggish for lab spin-up.
### 6.4 How this maps to k8s StorageClasses (future, post-Friday)
The scratch tier maps to two k8s concepts:
```
StorageClass: local-fast
provisioner: local-path
where: tsys3 (NVMe), tsys9 (SSD), tsys2 (NVMe+SSD), tsys5 (HDD)
use: emptyDir replacement, build artifacts, container runtime cache
redundancy: none — ephemeral, dies with the pod
StorageClass: nfs-hdd (existing concept)
provisioner: nfs-subdir-external
where: D2/D5 (tsys4), S1/S2/S3/S4 (tsys5)
use: persistent bulk data, VM OS drives, anything that must survive restarts
redundancy: cross-server spreading + PBS backup
```
A wnode with local scratch gets a second disk (or a partition on local-lvm)
mounted as `/scratch`. ETL jobs write intermediate data to `/scratch`
(local-fast) and final output to `/data` (nfs-hdd). Pods that need ephemeral
fast storage request `local-fast` PVCs; pods that need persistence request
`nfs-hdd`.
**This is forward-looking.** The concrete implementation (formatting local-lvm,
adding to Proxmox as VM disk targets, defining StorageClasses, labeling nodes)
happens after the Friday maintenance window when the SSD/NVMe tiers are
physically installed and the storage architecture is finalized.
proxmox/docs/DRIFT-2026-07-30.md
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@@ -1,175 +1,10 @@
# Fleet Drift Report # proxmox/docs/DRIFT-2026-07-30.md
> **Data gathered:** 2026-07-30 ~04:15 UTC (live, via `tests/remote.sh` from all 7 hosts) > **Documentation moved to Discourse — the canonical source of truth.**
> **Probe script:** `/tmp/pfv-probe-drift.sh` (read-only, all 7 hosts in parallel) >
> **Report generated:** 2026-07-30 > **Fleet drift report 2026-07-30**
>
--- > **Read it here:** https://community.turnsys.com/t/298
>
## Executive Briefing > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
> Do not update content here — edit the Discourse wiki topic instead.*
### What needs your decision now
| # | Issue | Impact | Recommendation |
|---|-------|--------|---------------|
| **1** | **lldpd INACTIVE on tsys1** | No LLDP neighbor data from tsys1 — blind spot in network topology map | Enable: `systemctl enable --now lldpd` |
| **2** | **tsys9 missing 2 SSH keys** | Only 3 authorized_keys vs 5 on every other host — possible access gap | Verify which keys should be present; add missing |
| **3** | **iperf3 missing on tsys9** | Can't run throughput tests from the best compute host | Install: `apt install iperf3` |
| **4** | **net-tools missing on tsys1/6/7** | `ifconfig`/`netstat` unavailable (minor — `ip` command works) | Install for consistency: `apt install net-tools` |
| **5** | **sysstat missing on tsys5** | No `iostat`/`mpstat`/`sar` on a storage host | Install: `apt install sysstat` |
| **6** | **nvme-cli missing on tsys4/5** | Can't query NVMe health/SMART on the storage servers that have NVMe | Install: `apt install nvme-cli` |
| **7** | **tsys4 tuning drift** | rmem/wmem=16MB (fleet: 128MB), tcp_max_syn_backlog=1024 (fleet: 2048+), netdev_max_backlog=5000 (fleet: 250000), tuned=throughput-performance (should be network-throughput) | Run `apply-tunings.sh --apply` on tsys4 |
| **8** | **noatime only on tsys5 root** | All other hosts use relatime on root fs — minor perf difference | Standardize (noatime preferred for storage hosts) |
| **9** | **rsyslog inactive fleet-wide** | No syslog forwarding/receiving anywhere | Saturday OAM Day: set up centralized syslog |
| **10** | **snmpd inactive fleet-wide** | No SNMP polling on hosts (switches have it) | Saturday OAM Day: wire snmpd for LibreNMS |
| **11** | **beszel not deployed** | No metrics agent on any host yet | Saturday OAM Day: deploy Beszel agent fleet-wide |
### Consistent across the fleet (good)
These items are the SAME on all 7 hosts — no drift:
- **PVE version:** 9.2.5 / kernel 7.0.14-6-pve (except tsys4: 9.1.5 / 6.17.9 — known, separate upgrade task)
- **Debian version:** all on trixie/13
- **tcp_congestion_control:** bbr everywhere
- **CPUs scaling_governor:** performance everywhere (except tsys5: no cpufreq driver — Westmere, expected)
- **ethtool:** same version everywhere
- **nfs-common:** same version everywhere
- **tcpdump:** same version everywhere
- **smartmontools:** 7.5 everywhere, smartd active everywhere
- **tuned:** installed everywhere
- **SSHD config:** PermitRootLogin=yes, KbdInteractiveAuthentication=no everywhere (pubkey+2FA via PAM)
- **PasswordAuthentication:** not explicitly set (default) — relies on 2FA PAM module
### Quick severity summary
- **Fix now (5 min each, no risk):** lldpd on tsys1, iperf3 on tsys9, sysstat on tsys5, nvme-cli on tsys4/5
- **Fix with tuning pass:** tsys4 rmem/wmem/backlog/tuned-profile (via existing `apply-tunings.sh --apply`)
- **Saturday OAM Day:** rsyslog, snmpd, beszel fleet-wide deployment
- **Investigate:** tsys9 SSH key count (2 keys missing)
---
## Appendix A: Package Presence Matrix
> MISSING = not installed. Version shown = installed version (truncated).
| Package | tsys1 | tsys3 | tsys4 | tsys5 | tsys6 | tsys7 | tsys9 |
|---------|-------|-------|-------|-------|-------|-------|-------|
| lldpd | **MISSING** | 1.0.18 | 1.0.18 | 1.0.18 | 1.0.18 | 1.0.18 | 1.0.18 |
| smartmontools | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 |
| nfs-common | 2.8.3 | 2.8.3 | 2.8.3 | 2.8.3 | 2.8.3 | 2.8.3 | 2.8.3 |
| nfs-kernel-server | — | — | 2.8.3 | 2.8.3 | — | — | — |
| iperf3 | 3.18 | 3.18 | 3.18 | 3.18 | 3.18 | 3.18 | **MISSING** |
| tcpdump | 4.99.5 | 4.99.5 | 4.99.5 | 4.99.5 | 4.99.5 | 4.99.5 | 4.99.5 |
| rsyslog | installed | installed | installed | installed | installed | installed | installed |
| qemu-guest-agent | — | — | — | — | — | — | — |
| snmpd | **MISSING** | **MISSING** | **MISSING** | **MISSING** | **MISSING** | **MISSING** | **MISSING** |
| net-tools | **MISSING** | 2.10 | 2.10 | 2.10 | **MISSING** | **MISSING** | **MISSING** |
| ethtool | 6.14.2 | 6.14.2 | 6.14.2 | 6.14.2 | 6.14.2 | 6.14.2 | 6.14.2 |
| sysstat | 12.7.5 | 12.7.5 | 12.7.5 | **MISSING** | 12.7.5 | 12.7.5 | 12.7.5 |
| nvme-cli | 2.13 | 2.13 | **MISSING** | **MISSING** | 2.13 | 2.13 | 2.13 |
| conman | — | — | 0.3.1 | — | — | — | — |
| ser2net | 4.6.4 | — | 4.6.4 | — | — | — | — |
| nut-server | 2.8.1 | — | — | — | — | — | — |
| tuned | 2.25.1 | 2.25.1 | 2.25.1 | 2.25.1 | 2.25.1 | 2.25.1 | 2.25.1 |
> **Note:** conman on tsys1, ser2net on tsys1, and nut-server on tsys1 are
> expected — tsys1 hosts the UPS (NUT) and has ser2net from a previous config.
> conman/ser2net on tsys4 is expected (console server). These are not drift.
## Appendix B: Service State Matrix
| Service | tsys1 | tsys3 | tsys4 | tsys5 | tsys6 | tsys7 | tsys9 |
|---------|-------|-------|-------|-------|-------|-------|-------|
| lldpd | **inactive** | active | active | active | active | active | active |
| smartd | active | active | active | active | active | active | active |
| snmpd | **inactive** | **inactive** | **inactive** | **inactive** | **inactive** | **inactive** | **inactive** |
| rsyslog | **inactive** | **inactive** | **inactive** | **inactive** | **inactive** | **inactive** | **inactive** |
| beszel | — | — | — | — | — | — | — |
> snmpd, rsyslog, and beszel are inactive on ALL hosts. These are Saturday OAM
> Day items, not drift — they haven't been deployed yet.
## Appendix C: Sysctl Tuning Matrix
| Setting | tsys1 | tsys3 | tsys4 | tsys5 | tsys6 | tsys7 | tsys9 |
|---------|-------|-------|-------|-------|-------|-------|-------|
| rmem_max | 128MB | 128MB | **16MB** | 128MB | 128MB | 128MB | 128MB |
| wmem_max | 128MB | 128MB | **16MB** | 128MB | 128MB | 128MB | 128MB |
| tcp_congestion | bbr | bbr | bbr | bbr | bbr | bbr | bbr |
| swappiness | 10 | 10 | 1 | 1 | 10 | 10 | 10 |
| tcp_max_syn_backlog | 2048 | 2048 | **1024** | 4096 | 4096 | 4096 | 2048 |
| netdev_max_backlog | 250000 | 250000 | **5000** | 250000 | 250000 | 250000 | 250000 |
| governor | perf | perf | perf | N/A | perf | perf | perf |
> **tsys4 is the outlier** on 4 settings: rmem/wmem (16MB vs 128MB),
> tcp_max_syn_backlog (1024 vs 2048+), netdev_max_backlog (5000 vs 250000).
> These directly affect NFS throughput — the 16MB TCP buffers cap per-connection
> window size, and the low backlog values can cause packet drops under load.
> swappiness=1 on tsys4/5 is intentional (storage hosts).
## Appendix D: Tuned Profile Matrix
| Host | Profile | Expected | Match? |
|------|---------|----------|--------|
| tsys1 | virtual-host | virtual-host | ✓ |
| tsys3 | virtual-host | virtual-host | ✓ |
| **tsys4** | **throughput-performance** | **network-throughput** | **✗** |
| tsys5 | network-throughput | network-throughput | ✓ |
| tsys6 | virtual-host | virtual-host | ✓ |
| tsys7 | virtual-host | virtual-host | ✓ |
| tsys9 | virtual-host | virtual-host | ✓ |
## Appendix E: SSH + Security State
### Authorized keys (root)
| Host | Key count | Notes |
|------|-----------|-------|
| tsys1 | 5 | Standard |
| tsys3 | 5 | Standard |
| tsys4 | 5 | Standard |
| tsys5 | 5 | Standard |
| tsys6 | 5 | Standard |
| tsys7 | 5 | Standard |
| **tsys9** | **3** | **2 fewer keys than rest of fleet — investigate** |
### SSHD config (consistent across fleet)
| Setting | Value | All hosts |
|---------|-------|-----------|
| PermitRootLogin | yes | ✓ (all) |
| PasswordAuthentication | (default — not set) | ✓ (all) |
| KbdInteractiveAuthentication | no | ✓ (all) |
> 2FA is enforced via PAM module (`secharden-2fa`), not via sshd's
> KbdInteractiveAuthentication. The PAM approach is consistent.
## Appendix F: Filesystem Mount Options
| Host | root fs mount option | Notes |
|------|---------------------|-------|
| tsys1 | relatime | Default |
| tsys3 | relatime | Default |
| tsys4 | relatime | Default |
| **tsys5** | **noatime** | **Only host with noatime on root** |
| tsys6 | relatime | Default |
| tsys7 | relatime | Default |
| tsys9 | relatime | Default |
> Minor: noatime reduces metadata writes (slight improvement on HDD).
> Storage hosts (tsys4/5) would benefit most from noatime.
## Appendix G: Raw Data Location
All raw drift probe output is stored in `/tmp/<hostname>-drift.txt` on this
workstation (not committed — ephemeral). Re-gather any time with:
```bash
for h in pfv-tsys1 pfv-tsys3 pfv-tsys4 pfv-tsys5 pfv-tsys6 pfv-tsys7 pfv-tsys9; do
PROX_HOST=$h bash tests/remote.sh prox-file /tmp/pfv-probe-drift.sh > /tmp/$h-drift.txt
done
```
The probe script should be saved to the repo as `perf/scripts/probe-drift.sh`
for reuse. It is read-only and portable.
proxmox/docs/HOST-REFERENCE.md
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# Host Reference # proxmox/docs/HOST-REFERENCE.md
> **One-page-per-host quick reference for every Proxmox node.** Hardware, > **Documentation moved to Discourse — the canonical source of truth.**
> network, storage, role, and running VMs. Data gathered 2026-07-30.
> >
> Companion docs: [`NETWORK-TOPOLOGY.md`](NETWORK-TOPOLOGY.md), > **Per-host hardware/network/storage/tuning/role reference**
> [`STORAGE-ARCHITECTURE.md`](STORAGE-ARCHITECTURE.md), >
> [`VM-INVENTORY.md`](VM-INVENTORY.md). > **Read it here:** https://community.turnsys.com/t/304
>
--- > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
> Do not update content here — edit the Discourse wiki topic instead.*
## Fleet summary
```mermaid
graph TB
subgraph "RACK 5 -- Core / Data / Infra"
T1["tsys1 -- Infra<br>i7-4770 | 32GB | 9 VMs<br>57% RAM"]
T3["tsys3 -- Compute<br>Xeon E3-1535M v5 | 32GB | 1 VM<br>10% RAM"]
T4["tsys4 -- Storage+PBS<br>Xeon E3-1246 v3 | 16GB | 1 VM<br>15% RAM"]
T5["tsys5 -- Storage+Sandbox<br>Xeon E5620 | 96GB | 4 VMs<br>15% RAM"]
T9["tsys9 -- Infra+Compute<br>i5-10500 | 24GB | 6 VMs<br>69% RAM"]
end
subgraph "RACK 3 -- Compute / RackRental"
T6["tsys6 -- RackRental<br>2x Xeon E5530 | 126GB | 2 VMs<br>12% RAM"]
T7["tsys7 -- RackRental<br>2x Xeon E5-2630 v2 | 189GB | 5 VMs<br>7% RAM"]
end
```
| Host | CPU (era) | Threads | RAM | PVE | Kernel | Role | Running VMs | RAM actual% |
|------|-----------|---------|-----|-----|--------|------|-------------|-------------|
| tsys1 | i7-4770 Haswell (2013) | 8 | 32 GB | 9.2.5 | 7.0.14 | Infra | 9 | 57% |
| tsys3 | Xeon E3-1535M v5 Skylake (2015) | 8 | 32 GB | 9.2.5 | 7.0.14 | Compute | 1 | 10% |
| tsys4 | Xeon E3-1246 v3 Haswell (2013) | 8 | 16 GB | **9.1.5** | **6.17.9** | Storage + PBS | 1 | 15% |
| tsys5 | Xeon E5620 Westmere (2010) | 8 | 96 GB | 9.2.5 | 7.0.14 | Storage + Sandbox | 4 | 15% |
| tsys6 | 2x Xeon E5530 Nehalem (2009) | 16 | 126 GB | 9.2.5 | 7.0.14 | RackRental | 2 | 12% |
| tsys7 | 2x Xeon E5-2630 v2 Ivy Bridge (2013) | 24 | 189 GB | 9.2.5 | 7.0.14 | RackRental | 5 | 7% |
| tsys9 | i5-10500 Comet Lake (2020) | 12 | 24 GB | 9.2.5 | 7.0.14 | Infra + Compute | 6 | 69% |
**Retired:** tsys2 (Win10, pending rebuild), tsys8 (permanently retired)
---
## pfv-tsys1 -- Infrastructure host
| Attribute | Value |
|-----------|-------|
| **Role** | Infrastructure: Home Assistant, CA, netinfra-01, LibreNMS, PDM, k8s cnode3, UCS-01, kali, workbench |
| **Hardware** | Dell, i7-4770 Haswell (2013), 8 threads, 32 GB RAM (maxed) |
| **PVE** | 9.2.5 / kernel 7.0.14-6-pve |
| **mgmt IP** | 192.168.3.11 (vmbr0, DHCP) |
| **Tailscale** | 100.121.189.98 |
| **Storage IP** | 10.100.100.1 (datanet via nic1, USB dongle, no bond) |
| **NFS mounts** | S1, S2, S3, S4, D2 (all nconnect=4) |
| **Local storage** | local-lvm (~90 GB, HDD, marginal) |
| **Tuning** | governor=performance, swappiness=10, bbr, rmem/wmem=128MB, tuned=virtual-host |
| **Bond** | None (single USB NIC for storage) |
| **Special services** | NUT (UPS), powerman (PDU) |
| **Running VMs** | 100, 101, 103, 104, 105, 106, 108, 114, 117 |
---
## pfv-tsys3 -- Compute host
| Attribute | Value |
|-----------|-------|
| **Role** | Compute: k8s wnode-tsys3 (28 GB RAM, 8 vCPU) |
| **Hardware** | Xeon E3-1535M v5 Skylake (2015), 8 threads, 32 GB RAM |
| **PVE** | 9.2.5 / kernel 7.0.14-6-pve |
| **mgmt IP** | 192.168.2.5 (vmbr0, DHCP) |
| **Storage IP** | 10.100.100.3 (datanet via enx USB dongle, no bond) |
| **NFS mounts** | D2, D5, S2, S4, T5-SSD (all nconnect=4) |
| **Local storage** | local-lvm (Samsung PM961 NVMe, 349 GB, 0% used) -- **best existing local storage** |
| **Tuning** | governor=performance, swappiness=10, bbr, rmem/wmem=128MB, tuned=virtual-host |
| **Bond** | None (single USB NIC for storage) |
| **Running VMs** | 313 |
---
## pfv-tsys4 -- Storage server + PBS
| Attribute | Value |
|-----------|-------|
| **Role** | NFS storage server (D1/D2/D3/D5) + Proxmox Backup Server + console management (conman/ser2net) |
| **Hardware** | Xeon E3-1246 v3 Haswell (2013), 8 threads, 16 GB RAM |
| **PVE** | **9.1.5** / kernel **6.17.9-1-pve** (BEHIND fleet) |
| **mgmt IP** | 192.168.3.251 (vmbr0, DHCP) |
| **Tailscale** | 100.70.77.93 |
| **Storage IP** | 10.100.100.4 (datanet via enx8cae4ccda926 USB dongle, bond0 with 1 slave) |
| **NFS mounts** | None (NFS server only) |
| **Local storage** | local-lvm (WDC WD10EZRX 1TB, ~62 GB free) |
| **NFS exports** | D1 (WD 1TB USB), D2 (WDC Red 3TB), D3 (Seagate 500GB USB), D5 (Hitachi 2TB) |
| **Other disks** | /mnt/albert (Hitachi 2TB, not exported), /mnt/backup (WD 5TB USB) |
| **Tuning** | governor=performance, swappiness=1, bbr, **rmem/wmem=16MB** (should be 128MB), **tuned=throughput-performance** (should be network-throughput) |
| **Bond** | bond0 (1 USB slave), hash=layer2+3 |
| **Special services** | ser2net + conman (7 switch consoles on :7890) |
| **Running VMs** | 400 (PBS) |
| **Notes** | USB NIC bottleneck. Needs PVE upgrade + tuning alignment. |
---
## pfv-tsys5 -- Storage server + sandboxes
| Attribute | Value |
|-----------|-------|
| **Role** | NFS storage server (S1/S2) + sectestbed sandboxes + ultix streaming |
| **Hardware** | Dell T7500, Xeon E5620 Westmere (2010) **single CPU** (CPU2 socket empty), 8 threads, 96 GB RAM |
| **PVE** | 9.2.5 / kernel 7.0.14-6-pve |
| **mgmt IP** | 192.168.3.179 (vmbr0, DHCP) |
| **Storage IP** | 10.100.100.5 (storagenet via bond0, **1 of 2 slaves active** -- nic2 DOWN) |
| **NFS mounts** | D2, D3, D5 from tsys4 (**missing nconnect**) |
| **NFS exports** | S1 (IronWolf 1TB), S2 (IronWolf 1TB), S3 (stale), SSD (Samsung 860 PRO) |
| **Local storage** | local-lvm (Hitachi 2TB), local-nonprod (=S1), SSD dir (Samsung 860 PRO 256GB) |
| **Unconfigured disks** | **NVMe CT500P1 500GB** (not mounted), **SK hynix SC300B 512GB SSD** (not mounted) |
| **Tuning** | governor=N/A (no cpufreq driver on Westmere), swappiness=1, bbr, rmem/wmem=128MB, tuned=network-throughput |
| **Bond** | bond0 (1 of 2 slaves), hash=layer2+3 |
| **Running VMs** | 509, 515, 5111, 5112 (+ 22 stopped sandboxes) |
| **Notes** | Bond degraded (needs 2nd cable). NVMe + SSD need mounting/config. SSD 93% full. Single CPU. |
---
## pfv-tsys6 -- RackRental host
| Attribute | Value |
|-----------|-------|
| **Role** | RackRental: k8s wnode-tsys6 (64 GB RAM) + AWX |
| **Hardware** | 2x Xeon E5530 Nehalem (2009), 16 threads, 126 GB RAM |
| **PVE** | 9.2.5 / kernel 7.0.14-6-pve |
| **mgmt IP** | 192.168.3.169 (vmbr0, DHCP) |
| **Tailscale** | 100.73.35.111 |
| **Storage IP** | 10.100.100.6 (storagenet via bond0, **2 of 2 slaves active**, 2G LACP) |
| **NFS mounts** | D1, D2, D3, D5, S1, S2, S3, S4, T5-SSD (9 mounts, all nconnect=4) |
| **Local storage** | local-lvm (WD My Passport USB 2.0 HDD, 1.7 TB, **30 MB/s -- do not use for VMs**) |
| **Tuning** | governor=performance, swappiness=10, bbr, rmem/wmem=128MB, tuned=virtual-host |
| **Bond** | bond0 (2 of 2 slaves), **hash=layer3+4** (correct) |
| **Running VMs** | 100 (wnode-tsys6, 64GB), 600 (tsys-awx) |
| **Notes** | Best storage bond in fleet (2G LACP). Local storage is USB 2.0 -- unusable for scratch. |
---
## pfv-tsys7 -- RackRental host
| Attribute | Value |
|-----------|-------|
| **Role** | RackRental: k8s wnode-tsys7 + hfnoc-uisp + rr-middleware + TCTC + k8s cnode2 |
| **Hardware** | 2x Xeon E5-2630 v2 Ivy Bridge (2013), 24 threads, 189 GB RAM |
| **PVE** | 9.2.5 / kernel 7.0.14-6-pve |
| **mgmt IP** | 192.168.3.55 (vmbr0, DHCP) |
| **Storage IP** | 10.100.100.7 (datanet via bond0, **2 of 2 slaves active**, 2G LACP) |
| **NFS mounts** | D1, D2, D3, D5, S1, S2, S3, S4, T5-SSD (9 mounts, all nconnect=4) |
| **Local storage** | local-lvm (WD portable USB 2.0 HDD, 1.7 TB, **30 MB/s -- do not use for VMs**) |
| **Tuning** | governor=performance, swappiness=10, bbr, rmem/wmem=128MB, tuned=virtual-host |
| **Bond** | bond0 (2 of 2 slaves), **hash=layer3+4** (correct) |
| **Running VMs** | 701, 702, 703, 704, 705 |
| **Notes** | Best storage bond in fleet (2G LACP). Most RAM in fleet (189 GB). Local storage USB 2.0. |
---
## pfv-tsys9 -- Infra + Compute
| Attribute | Value |
|-----------|-------|
| **Role** | Infra + Compute: k8s cnode1 + wnode-tsys9 + siem + UCS-02 + netinfra-02 + kali |
| **Hardware** | i5-10500 Comet Lake (2020), 12 threads, 24 GB RAM |
| **PVE** | 9.2.5 / kernel 7.0.14-6-pve |
| **mgmt IP** | 192.168.3.58 (vmbr0, DHCP) |
| **Storage IP** | 10.100.100.9 (datanet via enx9c69d36a5b6c USB dongle, no bond) |
| **NFS mounts** | D2, D5, S2, S3, S4, T5-SSD (all nconnect=4) |
| **Local storage** | local-lvm (PNY CS900 SSD, 136 GB, 0% used) -- **excellent for scratch** |
| **Tuning** | governor=performance, swappiness=10, bbr, rmem/wmem=128MB, tuned=virtual-host |
| **Bond** | None (single USB NIC for storage) |
| **Running VMs** | 901, 902, 903, 904, 905, 906 |
| **Notes** | Newest CPU (best IPC in fleet). **69% RAM -- approaching 80% goal.** Target for compute growth (after siem migrates off). |
proxmox/docs/K8S.md
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# K8S.md -- Kubernetes Architecture Deep-Dive # proxmox/docs/K8S.md
**Date:** 2026-07-27 > **Documentation moved to Discourse — the canonical source of truth.**
**Purpose:** Detailed kubernetes architecture plan for the pfv-k8s cluster. >
Companion to [`PROJECT.md`](PROJECT.md) (which has the fleet-wide assessment). > **Legacy k8s storage/host analysis**
**Status:** For discussion in a future session. No changes made. >
> **Read it here:** https://community.turnsys.com/t/305
--- >
> *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
## Table of Contents > Do not update content here — edit the Discourse wiki topic instead.*
1. [Workload Profile](#1-workload-profile)
2. [Current State](#2-current-state)
3. [Target Architecture](#3-target-architecture)
4. [Control Plane (Cnodes)](#4-control-plane-cnodes)
5. [Worker Nodes (Wnodes)](#5-worker-nodes-wnodes)
6. [Storage Class Design](#6-storage-class-design)
7. [ETL/HPC Considerations](#7-etlhpc-considerations)
8. [Migration Plan](#8-migration-plan)
---
## 1. Workload Profile
This cluster runs **R&D and RackRental (containerlab) workloads** via
Kubernetes. Production (Gitea, RustFS, Redmine, websites) lives on a VPS in
Reston, VA running Cloudron.
**Workload types expected:**
| Type | Description | Storage need | RAM need | Examples |
|------|------------|-------------|----------|---------|
| **ETL (weather/GIS)** | Batch processing of large geospatial datasets. Sequential reads, transform, sequential writes. | High capacity (100s of GB), moderate IOPS | Medium (8-32 GB per job) | GRIB/NetCDF processing, raster reprojection |
| **HPC (hardware startup)** | Compute-intensive simulations, firmware build pipelines, hardware-in-the-loop testing. | Low capacity, moderate IOPS | High (32-128 GB per job) | RTL simulation, PCB thermal analysis |
| **RackRental (containerlab)** | Rapid deployment/teardown of network lab topologies. Many containers, short-lived. | Low capacity, high IOPS (container image pulls) | Low-Medium (4-16 GB) | Network topology testing, protocol validation |
**Key storage insight:** ETL workloads need bulk capacity (NFS-HDD is fine --
sequential I/O). HPC and containerlab need low-latency random I/O (local
SSD/NVMe is essential). The tiered StorageClass design (section 6) serves both.
---
## 2. Current State
### 2.1 pfv-k8s nodes and their storage
| Node | Type | Host | Storage | Disk type | Status |
|------|------|------|---------|-----------|--------|
| cnode1 (107) | control | tsys1 | D5 (tsys4) | NFS-HDD | running |
| cnode2 (603) | control | tsys6 | D2 (tsys4) | NFS-HDD | running |
| cnode3 (106) | control | tsys1 | D2 (tsys4) | NFS-HDD | running |
| cnode4 (601) | control | tsys6 | D2 (tsys4) | NFS-HDD | running |
| cnode5 (602) | control | tsys6 | D5 (tsys4) | NFS-HDD | running |
| wnode-tsys3 (313) | worker | tsys3 | D5 (tsys4) | NFS-HDD | running |
| wnode-tsys5 (509) | worker | tsys5 | D2 (tsys4) | NFS-HDD | running |
| wnode-tsys6 (100) | worker | tsys6 | D5 (tsys4) | NFS-HDD | **STOPPED** |
| wnode-tsys7 (701) | worker | tsys7 | D5 (tsys4) | NFS-HDD | running |
| wnode-tsys9 (905) | worker | tsys9 | S3 (tsys5) | NFS-HDD | running |
### 2.2 Problems
1. **100% of cnodes on tsys4 NFS.** D2 disk failure loses 3 of 5 cnodes =
etcd quorum lost.
2. **90% of all k8s nodes on tsys4 NFS.** tsys4 failure kills the cluster.
3. **Zero nodes use SSD or NVMe.** All on NFS-over-HDD.
4. **Zero nodes use local-lvm.** tsys3/6/7/9 all have empty local storage
(349 GB / 1.7 TB / 1.7 TB / 136 GB SSD respectively).
5. **wnode-tsys6 is stopped.** Reduces cluster capacity.
6. **3 cnodes on tsys6** -- should be on lighter hosts to free tsys6 for workers.
---
## 3. Target Architecture
### 3.1 Design principles
1. **Cnodes on lightweight hosts** (tsys1, tsys9, tsys3) -- frees tsys6/7 for
heavy workers.
2. **Cnode storage split across tsys4 and tsys5** -- etcd survives either
storage server failing.
3. **Wnode boot disks on local storage** -- eliminates NFS latency for
container runtime and kubelet.
4. **Wnode data disks on NFS-HDD** -- bulk capacity for ETL/weather/GIS.
5. **tsys5 NVMe dedicated to wnode-tsys5** -- fastest tier for HPC jobs.
6. **One wnode per hypervisor host** -- maximize total cluster capacity.
### 3.2 Target node-host-storage matrix
| Node | Type | Host | Boot disk | Data disk | Disk type |
|------|------|------|-----------|-----------|-----------|
| cnode1 | control | tsys1 | D5 (tsys4) | -- | NFS-HDD |
| cnode2 | control | tsys9 | D2 (tsys4) | -- | NFS-HDD |
| cnode3 | control | tsys1 | S2 (tsys5) | -- | NFS-HDD |
| cnode4 | control | tsys9 | D5 (tsys4) | -- | NFS-HDD |
| cnode5 | control | tsys3 | S3 (tsys5) | -- | NFS-HDD |
| wnode-tsys1 | worker | tsys1 | D5 (tsys4) | -- | NFS-HDD (small) |
| wnode-tsys2 | worker | tsys2 | **NVMe (960 PRO 512GB)** | **SATA SSD (850 EVO 1TB)** | **NVMe + SSD -- no NFS needed** |
| wnode-tsys3 | worker | tsys3 | **local-lvm (NVMe PM961)** | S3 (NFS) | **LOCAL-NVMe** |
| wnode-tsys5 | worker | tsys5 | **NVMe (local, Friday)** | local-nonprod (HDD) | **NVMe** |
| wnode-tsys6 | worker | tsys6 | D2 (tsys4 NFS) | -- | NFS-HDD (local-lvm is USB 2.0 -- do not use) |
| wnode-tsys7 | worker | tsys7 | D5 (tsys4 NFS) | -- | NFS-HDD (local-lvm is USB 2.0 -- do not use) |
| wnode-tsys9 | worker | tsys9 | **local-lvm (SSD)** | S2 (NFS) | **LOCAL-SSD** |
### 3.3 Storage server distribution after changes
| Storage server | cnodes | wnodes (boot) | wnodes (data) |
|---------------|--------|---------------|---------------|
| tsys4 (D2) | cnode2 | wnode-tsys6 | wnode-tsys7 |
| tsys4 (D5) | cnode1, cnode4 | wnode-tsys1 | -- |
| tsys5 (S2) | cnode3 | wnode-tsys9 | -- |
| tsys5 (S3) | cnode5 | -- | wnode-tsys3 |
**Note:** wnode-tsys2 needs no NFS (1.5 TB local SSD). wnode-tsys6/7 stay on
NFS by design -- their local-lvm is USB 2.0 portable HDD (~30 MB/s), slower
than NFS-HDD, and the user has chosen not to install internal drives.
**No single disk or server is a quorum-losing failure point.**
---
## 4. Control Plane (Cnodes)
### 4.1 Cnode sizing
Each cnode: 4 cores, 4 GB RAM, 32 GB disk. This is sufficient for etcd +
kubernetes control plane components (API server, scheduler, controller-manager).
### 4.2 Cnode host placement rationale
| Host | cnodes | RAM for cnodes | Total host RAM | Remaining for other VMs |
|------|--------|---------------|---------------|------------------------|
| tsys1 | 2 (cnode1, cnode3) | 8 GB | 32 GB | ~24 GB (but 11 infra VMs consume most) |
| tsys9 | 2 (cnode2, cnode4) | 8 GB | 24 GB | ~16 GB (4 infra VMs + 1 wnode) |
| tsys3 | 1 (cnode5) | 4 GB | 32 GB | ~28 GB (1 wnode at 20 GB = 8 GB headroom) |
**tsys6 and tsys7 have ZERO cnodes** -- fully dedicated to heavy worker nodes.
### 4.3 Cnode storage placement rationale
The 5 cnodes are split 3-on-tsys4 / 2-on-tsys5:
| Disk | cnodes | Rationale |
|------|--------|-----------|
| D5 (tsys4 HDD) | cnode1, cnode4 | Spread load across 2 disks on tsys4 |
| D2 (tsys4 HDD) | cnode2 | Only 1 cnode on D2 (was 3 -- reduces blast radius) |
| S2 (tsys5 HDD) | cnode3 | tsys5 storage for quorum diversity |
| S3 (tsys5 HDD) | cnode5 | tsys5 storage, different disk than S2 |
**If D2 fails:** cnode2 dies. 4 of 5 survive. Quorum OK.
**If D5 fails:** cnode1 + cnode4 die. 3 of 5 survive. Quorum OK.
**If tsys4 fails:** cnode1, cnode2, cnode4 die. cnode3 + cnode5 survive on
tsys5. **Only 2 of 5 -- QUORUM LOST.**
Wait -- that is a problem. If tsys4 goes completely offline, we lose 3
cnodes and only have 2 on tsys5. That loses quorum (need 3).
**Revision needed:** Move 1 more cnode to tsys5 storage. Target: 2 on tsys4,
3 on tsys5. But that means tsys5 failure (3 cnodes die) leaves only 2 on
tsys4. Same problem inverted.
The fundamental issue: with 5 cnodes and 2 storage servers, the best split is
3/2. The server holding 3 cnodes is a quorum-loss risk if it fails. The server
holding 2 cnodes is safe (3 survive).
**Proper solution: 3 cnodes on the "less likely to fail" server, 2 on the
other.** After Friday's hardware work:
- tsys4 will have a new PCIe NIC + 64 GB RAM -- more reliable
- tsys5 will have bond0 fixed + NVMe -- more reliable
Either way, 3/2 split means one server failure could lose quorum. **To truly
solve this, use a 3rd storage target.** Options:
- Use tsys9 local SSD for 1 cnode (breaks the 2-server model, adds a 3rd
independent failure domain)
- Use local-lvm on the cnode's own host (etcd data is local to the VM's host,
no NFS dependency at all)
**Best option: put cnode boot disks on local-lvm where available.** This
eliminates NFS entirely for the control plane. Each cnode's etcd data lives on
its own host's local disk -- no shared dependency.
| cnode | Host | **Recommended storage** | Type |
|-------|------|------------------------|------|
| cnode1 | tsys1 | **local-lvm** (if space) or D5 (tsys4) | LOCAL-HDD or NFS-HDD |
| cnode2 | tsys9 | **local-lvm (SSD)** | **LOCAL-SSD** |
| cnode3 | tsys1 | **S2 (tsys5)** | NFS-HDD |
| cnode4 | tsys9 | **local-lvm (SSD)** | **LOCAL-SSD** |
| cnode5 | tsys3 | **local-lvm** | LOCAL-HDD |
With this layout, a tsys4 failure takes down 0 cnodes. A tsys5 failure takes
down 1 (cnode3). A host failure takes down at most 2 cnodes. Quorum always
survives.
**This is the recommended approach.** Local storage for cnodes wherever
possible. NFS only as fallback.
### 4.4 etcd performance on local vs NFS
| Storage | Typical fsync latency | etcd commit latency | Impact |
|---------|----------------------|--------------------|--------|
| NFS-HDD (via USB dongle on tsys4) | 5-15 ms | 10-30 ms | Slow API responses, sluggish pod scheduling |
| NFS-HDD (via PCIe NIC, post-Friday) | 2-8 ms | 5-15 ms | Better but still network-bound |
| Local HDD (tsys1/3/6/7 local-lvm) | 1-5 ms | 3-10 ms | No network hop, moderate improvement |
| Local SSD (tsys9 PNY CS900) | 0.1-0.5 ms | 0.5-2 ms | **10-30x faster than NFS-HDD** |
| NVMe (tsys5, Friday) | 0.02-0.1 ms | 0.1-0.5 ms | **100x faster than NFS-HDD** |
etcd is the heartbeat of the kubernetes control plane. Every API call, every
pod schedule, every controller reconciliation involves an etcd write. Cutting
etcd commit latency from 15 ms to 1 ms makes the entire cluster feel 15x more
responsive. **This is the single highest-impact change for k8s performance.**
---
## 5. Worker Nodes (Wnodes)
### 5.1 One wnode per hypervisor host
| Host | wnode | Boot disk | Data disk | Total RAM | wnode RAM | Role |
|------|-------|-----------|-----------|-----------|-----------|------|
| tsys1 | wnode-tsys1 | D5 (tsys4 NFS) | -- | 32 GB | 4-8 GB | Small worker, infra co-tenant |
| tsys2 | wnode-tsys2 | **NVMe (960 PRO 512GB)** | **SATA SSD (850 EVO 1TB)** | 32 GB | 16-24 GB | **Best storage of any worker -- 1.5TB local SSD, no NFS needed** |
| tsys3 | wnode-tsys3 | **local-lvm (349 GB)** | S3 (NFS) | 32 GB | 20 GB | General worker |
| tsys5 | wnode-tsys5 | **NVMe (local)** | local-nonprod (HDD) | 96 GB | 32-64 GB | **HPC/ETL powerhouse** |
| tsys6 | wnode-tsys6 | D2 (tsys4 NFS) | -- | 128 GB | 64-96 GB | **Heavy worker, max RAM.** local-lvm is USB 2.0 -- stays on NFS |
| tsys7 | wnode-tsys7 | D5 (tsys4 NFS) | -- | 192 GB | 96-128 GB | **Heavy worker, max RAM.** local-lvm is USB 2.0 -- stays on NFS |
| tsys9 | wnode-tsys9 | **local-lvm SSD (136 GB)** | S2 (NFS) | 24 GB | 4-8 GB | Small worker, SSD boot |
### 5.2 Why boot disks on local-lvm
Current: all wnodes boot from NFS. Every container image pull, every kubelet
log write, every ephemeral volume traverses the NFS network path.
With local-lvm boot disks:
- **Container image pulls** write to local disk (100-150 MB/s HDD, no network
hop) instead of NFS-HDD (80-120 MB/s with network latency)
- **kubelet logs** stay local (no NFS writes for log rotation)
- **ephemeral storage** (emptyDir volumes) uses local disk by default
- **NFS server failure does not kill the wnode** -- the VM stays running, only
the data disk (if mounted) goes away
### 5.3 Wnode sizing guidance
| Host | Recommended wnode config | Rationale |
|------|------------------------|-----------|
| tsys7 (192 GB) | 8-12 cores, 96-128 GB RAM, NFS boot | Largest host -- run the heaviest ETL/HPC jobs here. local-lvm is USB 2.0 |
| tsys6 (128 GB) | 8 cores, 64-96 GB RAM, NFS boot | Second-largest -- parallel heavy jobs. local-lvm is USB 2.0 |
| tsys5 (96 GB + NVMe) | 4 cores, 32-64 GB RAM, NVMe boot + HDD data | NVMe makes this fastest for I/O-bound HPC |
| tsys3 (32 GB) | 4 cores, 20 GB RAM, local-lvm boot | General-purpose worker |
| tsys2 (32 GB, NVMe+SSD, incoming) | 4 cores, 16-24 GB RAM, **NVMe boot + SSD data** | **Fastest storage worker** -- HPC with I/O bounds |
| tsys1 (32 GB) | 2 cores, 4-8 GB RAM | Small worker, don't starve infra VMs |
| tsys9 (24 GB) | 2-4 cores, 4-8 GB RAM | Small worker, SSD boot is the advantage |
### 5.4 Tainting and labeling strategy
Label wnodes by capability so the k8s scheduler can target them:
```yaml
# Heavy RAM hosts (ETL/HPC)
wnode-tsys6: workload=heavy, ram=128g
wnode-tsys7: workload=heavy, ram=192g
# NVMe host (I/O-intensive HPC)
wnode-tsys5: workload=hpc, storage=nvme
# SSD boot host (low-latency)
wnode-tsys9: workload=light, storage=ssd
# General workers
wnode-tsys3: workload=general
wnode-tsys2: workload=storage-fast, storage=nvme
wnode-tsys1: workload=light
```
Then use nodeSelector or nodeAffinity in job specs:
```yaml
# Weather/GIS ETL job -- needs lots of RAM
spec:
nodeSelector:
workload: heavy
# Firmware build -- needs fast storage
spec:
nodeSelector:
storage: nvme
```
---
## 6. Storage Class Design
### 6.1 Proposed StorageClasses
| StorageClass | Provisioner | Where | Speed | Use case |
|-------------|------------|-------|-------|----------|
| `local-fast` | local-path (k8s) | wnode local-lvm / NVMe | 100-3500 MB/s | Container runtime, scratch, databases |
| `nfs-hdd` | nfs-subdir-external-provisioner | tsys4 D2/D5, tsys5 S1-S4 | 80-120 MB/s | Bulk data, weather/GIS datasets |
| `nfs-ssd` | nfs-subdir-external-provisioner | tsys4 D3, tsys5 T5-SSD | 200-400 MB/s | Latency-sensitive persistent data |
### 6.2 How this maps to wnode disk topology
Each wnode has:
- **Disk 1 (boot/OS):** local-lvm or NVMe. Contains the OS, kubelet, container
runtime. k8s `local-fast` StorageClass provisioner points here.
- **Disk 2 (bulk data, optional):** NFS mount. Mounted inside the VM as a
second block device or filesystem. k8s `nfs-hdd` provisioner points here.
Inside k8s, pods request storage via PVC:
```yaml
# ETL job: needs bulk storage for weather data
apiVersion: v1
kind: PersistentVolumeClaim
spec:
storageClassName: nfs-hdd
accessModes: [ReadWriteMany] # NFS allows RWX
resources:
requests:
storage: 500Gi
# HPC job: needs fast scratch
spec:
storageClassName: local-fast
accessModes: [ReadWriteOnce]
resources:
requests:
storage: 50Gi
```
### 6.3 NFS-SSD tier (D3 and T5-SSD -- both on tsys5 after Friday)
**Storage philosophy (user directive): NVMe/SSD is EXCLUSIVELY for k8s worker
scratch space, with the exception of ultix-streaming which stays on T5-SSD.
Spinning rust hosts all other infrastructure VMs** (UCS, netinfra, LibreNMS,
SIEM, etc.).
The SSD NFS exports:
- **D3 (tsys5 SAS, 445 GB free):** k8s scratch exclusively (etcd, container
cache, ephemeral volumes). Currently 99% empty.
- **T5-SSD (tsys5 SAS, 140 GB free after ultix-streaming):** ultix-streaming
occupies 83 GB. Remaining 140 GB available for k8s use.
**tsys5 is the fast-tier hub:** NVMe (local) + D3 SSD + T5-SSD all on one host.
This simplifies the StorageClass design -- latency-sensitive k8s PVCs target
tsys5 SSD exports, bulk PVCs target either server.
### 6.4 NFS data distribution across storage servers
To avoid re-creating the "everything on tsys4" problem, distribute NFS data
disks across both servers:
| wnode | Boot (local) | Bulk data (NFS) | NFS server |
|-------|-------------|-----------------|------------|
| wnode-tsys3 | local-lvm | S3 | tsys5 |
| wnode-tsys5 | NVMe | local-nonprod | local (no NFS) |
| wnode-tsys6 | D2 (tsys4 NFS) | -- | tsys4 |
| wnode-tsys7 | D5 (tsys4 NFS) | -- | tsys4 |
| wnode-tsys9 | local-lvm (SSD) | S2 | tsys5 |
This balances: 2 wnodes using tsys4 for bulk data, 2 using tsys5.
---
## 7. ETL/HPC Considerations
### 7.1 Weather/GIS ETL pipeline
Typical flow: download GRIB/NetCDF files -> process (reproject, aggregate) ->
store results.
| Stage | Storage class | Why |
|-------|-------------|-----|
| Download raw data | `nfs-hdd` | Large sequential writes. NFS-HDD handles this well. |
| Processing scratch | `local-fast` | Random access during transform. Local disk avoids NFS latency. |
| Store results | `nfs-hdd` | Large sequential writes. Persistent. |
**Recommendation:** Deploy a `local-fast` PV mount as `/scratch` on every
wnode. ETL jobs use `/scratch` for intermediate processing and write final
output to the NFS-mounted `/data`.
### 7.2 HPC workloads (hardware startup)
Use cases: RTL simulation, PCB thermal analysis, firmware build pipelines.
| Workload | Best wnode | Why |
|----------|-----------|-----|
| RTL simulation (CPU-bound, high RAM) | tsys7 (192 GB) | Most RAM, most cores (24t) |
| Firmware builds (I/O-bound, moderate RAM) | tsys5 (NVMe) | Fastest storage for compile I/O |
| Hardware-in-the-loop (latency-sensitive) | tsys9 (local SSD) | Lowest latency storage |
| Parallel batch jobs | tsys6 + tsys7 | Distribute across both heavy hosts |
### 7.3 RackRental/containerlab
Rapid container deployment. Key need: fast container image pulls.
This is where **local-lvm boot disks** shine. Currently, every container image
pull writes through NFS to a spinning disk -- slow. With local-lvm, images
cache on local disk (even HDD is 2-3x faster than NFS-HDD for random I/O).
On tsys9 (SSD) and tsys5 (NVMe), image pulls are near-instant.
### 7.4 Data locality for ETL
For weather/GIS data that is read repeatedly (e.g., climate reanalysis), cache
it on local-lvm of the heavy hosts:
```
tsys3 local-lvm (NVMe 349 GB): /data/cache/weather/ -- fastest cache tier
tsys5 NVMe (local): /data/cache/gis/ -- fastest cache tier
```
**Note:** tsys6/7 local-lvm is USB 2.0 portable HDD (~30 MB/s) -- cannot
be used for caching. Pre-populate weather/GIS data on D2/D5 (NFS) instead.
This avoids re-reading the same data from the same NFS export on every job
if the data is already cached in the page cache.
---
## 8. Migration Plan
**Key enabler:** The hosts are standalone Proxmox installs, but **Proxmox
Datacenter Manager (PDM)** manages them collectively and supports VM migration
between nodes. Storage migration can be done via the PDM/Proxmox UI rather
than manual disk copies -- the destination node just needs access to the target
storage (which all nodes have for NFS exports, and local storage can be
migrated through the UI's "Storage Migrate" function).
### 8.1 Phase 1: Friday (after hardware work)
After tsys5 cable + NVMe and tsys4 NIC + RAM:
1. **Format tsys5 NVMe** as local directory storage (e.g., `nvme-local`)
2. **Restart wnode-tsys6** (VM 100). Keep on NFS (D5). local-lvm is USB 2.0 --
do not use for VM storage. Recreate on D2 or D5 NFS.
3. **Move wnode-tsys9** (VM 905) disk from S3 (NFS) to local-lvm (SSD).
### 8.2 Phase 2: Cnode rebalance (maintenance window)
These changes require creating new VMs on target hosts and migrating disks.
Plan for a maintenance window with the k8s cluster briefly down.
1. Create cnode2 on tsys9 (local-lvm SSD if possible, or D2 NFS).
2. Create cnode4 on tsys9 (D5 NFS or local-lvm SSD).
3. Create cnode5 on tsys3 (S3 NFS or local-lvm).
4. Move cnode3 disk from D2 to S2 (tsys4 to tsys5).
5. Join new cnodes to etcd cluster, drain old cnode2/4/5, remove.
### 8.3 Phase 3: Wnode local storage migration (maintenance window)
1. Recreate wnode-tsys3 with boot disk on local-lvm (349 GB).
2. wnode-tsys6 stays on NFS (local-lvm is USB 2.0 HDD -- not suitable).
3. wnode-tsys7 stays on NFS (same reason).
4. Recreate wnode-tsys5 with boot disk on NVMe.
5. Add data disks (NFS) as second SCSI devices where applicable.
### 8.4 Phase 4: tsys2 integration (when rebuilt)
1. Install Proxmox on tsys2.
2. Run `scripts/check.sh` to inventory.
3. Run `scripts/apply-tunings.sh --apply`.
4. Create wnode-tsys2 with **boot disk on NVMe (960 PRO)** and **data disk on SATA SSD (850 EVO)**. No NFS needed -- 1.5 TB local SSD is the most local storage of any worker.
5. Join to k8s cluster.
### 8.5 Phase 5: Critical VM relocation
1. Move netinfra-02 (VM 904) from D2 to S3 (tsys5 HDD).
2. Move ucs-02 (VM 902) from D5 to S2 (tsys5 HDD).
3. (No change to T5-SSD -- ultix-streaming stays.)
---
## Open questions for next session
1. **Are the hosts a Proxmox cluster (pvecm) or standalone?** This determines
whether live migration is available (huge simplification) or we need manual
disk migration. Check `pvecm status` on each host.
2. **What k8s distribution is in use?** (k3s, kubeadm, RKE2?) This affects how
nodes are joined/drain and how StorageClasses are configured.
3. **Container runtime?** (containerd, cri-o?) Affects local storage layout.
4. **Is there a container image registry mirror in the cluster?** Or do all
pulls go to Docker Hub / external? A local registry on D3 SSD would speed
up all pulls.
5. **What specific ETL tools?** (GDAL, PostGIS, xarray, Dask?) This affects
whether jobs need shared (RWX) or exclusive (RWO) storage.
6. **HPC job scheduler?** (plain k8s Jobs, Argo Workflows, Volcano?) Affects
how we label and taint nodes.
proxmox/docs/NAMING-POLICY.md
+9 -24
View File
@@ -1,25 +1,10 @@
# Naming and DNS Policy # proxmox/docs/NAMING-POLICY.md
> **Canonical naming policy for the PFVCluster fleet.** > **Documentation moved to Discourse — the canonical source of truth.**
> Established: 2026-07-31 >
> **Canonical naming policy for VMs/DNS/Tailscale**
## Rule >
> **Read it here:** https://community.turnsys.com/t/304
**The Proxmox VM name is the canonical identifier.** Everything else >
derives from it: > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
> Do not update content here — edit the Discourse wiki topic instead.*
1. **VM name** (set via `qm set <vmid> --name <name>`) is the source of truth
2. **DNS records** (Technitium, forward + reverse) must match the VM name exactly
3. **Tailscale node name** must match the VM name
4. **Monitoring/alerting** (Beszel, Uptime Kuma, LibreNMS) uses the VM name
5. **Inventory/k8s** references use the VM name
Any mismatch between VM name and DNS/Tailscale name is a **critical bug**
that must be fixed. The Technitium DNS API key is stored at
`~/.secrets/api-keys.env` for programmatic DNS management.
## Tools
- Technitium DNS API key: `~/.secrets/api-keys.env`
- Uptime Kuma API key: `~/.secrets/api-keys.env`
- DNS audit: `perf/scripts/probe-vm-dns.sh`
proxmox/docs/NETWORK-TOPOLOGY.md
+8 -363
View File
@@ -1,365 +1,10 @@
# Network Topology # proxmox/docs/NETWORK-TOPOLOGY.md
> **Complete physical + logical network reference for the PFVCluster.** > **Documentation moved to Discourse — the canonical source of truth.**
> Data gathered 2026-07-30 via SNMP, LLDP, conman console captures, and direct
> host probes. All data is live ground truth -- not documentation inherited.
> >
> Companion docs: [`STORAGE-ARCHITECTURE.md`](STORAGE-ARCHITECTURE.md), > **Network reference: topology diagrams, switch ports, VLAN map, NFS data-flow**
> [`HOST-REFERENCE.md`](HOST-REFERENCE.md), [`VM-INVENTORY.md`](VM-INVENTORY.md). >
> Findings/analysis: [`AUDIT-2026-07-30.md`](AUDIT-2026-07-30.md). > **Read it here:** https://community.turnsys.com/t/299
>
--- > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
> Do not update content here — edit the Discourse wiki topic instead.*
## 1. Physical topology diagram
```mermaid
graph TB
subgraph "RACK 5 - Core / Data / Infra"
CORE["pfv-core-sw01<br>PowerConnect 5448<br>192.168.0.12<br>(mgmt + storage VLANs)"]
TSYS1["pfv-tsys1<br>i7-4770 Haswell<br>Infra host"]
TSYS3["pfv-tsys3<br>Xeon E3-1535M v5<br>Compute"]
TSYS4["pfv-tsys4<br>Xeon E3-1246 v3<br>NFS Storage + PBS"]
TSYS5["pfv-tsys5<br>Xeon E5620 Westmere<br>NFS Storage + Sandboxes"]
TSYS9["pfv-tsys9<br>i5-10500 Comet Lake<br>Infra + Compute"]
TSYS4_CONSOLE["conman + ser2net<br>7 switch consoles<br>Tailscale 100.70.77.93:7890"]
TSYS1_PDU["Cyclades PM10i PDU<br>powerman on tsys1"]
TSYS1_UPS["APC Smart-UPS C 1500<br>NUT on tsys1"]
end
subgraph "RACK 3 - Compute / RackRental"
TOR3STOR["pfv-tor3-stor<br>PowerConnect 5324<br>192.168.0.9<br>storage VLAN"]
TOR3MGMT["pfv-tor3-mgmt<br>PowerConnect 5324<br>192.168.0.7<br>mgmt VLAN"]
TSYS6["pfv-tsys6<br>2x Xeon E5530 Nehalem<br>RackRental"]
TSYS7["pfv-tsys7<br>2x Xeon E5-2630 v2<br>RackRental"]
end
%% Cross-rack trunk (two one-way dotted arrows with labels)
CORE -. "ch1: 3x1G active (g13-15)<br>hash=layer-2-3<br>mode=on" .-> TOR3STOR
TOR3STOR -. "ch1: 4x1G (g20-23)<br>hash=layer-2-3-4<br>mode=on" .-> CORE
%% Rack 5 connections to core
CORE --> TSYS1
CORE --> TSYS3
CORE --> TSYS4
CORE --> TSYS5
CORE --> TSYS9
%% Rack 3 connections
TOR3STOR --> TSYS6
TOR3STOR --> TSYS7
TOR3MGMT --> TSYS6
TOR3MGMT --> TSYS7
```
### How to read this diagram
The dashed line between core-sw01 and tor3-stor is the **cross-rack trunk** --
the most critical link in the cluster. It carries all NFS storage traffic
between rack-3 compute hosts (tsys6/7) and rack-5 storage hosts (tsys4/5).
The trunk is a 4-port static LAG, but only 3 links are active due to a cable
mismatch (see §3 below).
---
## 2. Subnet / VLAN map
| VLAN | Subnet | Purpose | Where it lives |
|------|--------|---------|----------------|
| **1** (default) | 192.168.0.0/22 | Management network | All switches, all hosts (vmbr0 DHCP) |
| **1000** | 10.100.100.0/24 | Storage network (NFS) | core-sw01 + tor3-stor only (trunked) |
| -- (Tailscale) | 100.x.y.z/32 (CGNAT) | Remote access / overlay | All hosts + select VMs |
**Management IPs (VLAN 1, via DHCP reservations):**
| Host | mgmt IP (vmbr0) | Tailscale IP |
|------|-----------------|--------------|
| tsys1 | 192.168.3.11 | 100.121.189.98 |
| tsys3 | 192.168.2.5 | (connected) |
| tsys4 | 192.168.3.251 | 100.70.77.93 |
| tsys5 | 192.168.3.179 | (connected) |
| tsys6 | 192.168.3.169 | 100.73.35.111 |
| tsys7 | 192.168.3.55 | (connected) |
| tsys9 | 192.168.3.58 | (connected) |
**Storage IPs (VLAN 1000, static):**
| Host | Storage IP | Interface |
|------|-----------|-----------|
| tsys1 | 10.100.100.1 | datanet (nic1, USB dongle) |
| tsys3 | 10.100.100.3 | datanet (enx8cae4ccda774, USB dongle) |
| tsys4 | 10.100.100.4 | datanet (enx8cae4ccda926, USB dongle) |
| tsys5 | 10.100.100.5 | storagenet (bond0 → nic1, single link) |
| tsys6 | 10.100.100.6 | storagenet (bond0 → nic1+nic2, 2G LACP) |
| tsys7 | 10.100.100.7 | datanet (bond0 → nic1+nic2, 2G LACP) |
| tsys9 | 10.100.100.9 | datanet (enx9c69d36a5b6c, USB dongle) |
**Switch IPs (VLAN 1, static DHCP reservations):**
| Switch | IP | Model | Console |
|--------|----|-------|---------|
| pfv-core-sw01 | 192.168.0.12 | PowerConnect 5448 | conman port 2001 |
| pfv-tor3-stor | 192.168.0.9 | PowerConnect 5324 (Neyland 24T) | conman port 2003 |
| pfv-tor3-mgmt | 192.168.0.7 | PowerConnect 5324 (Neyland 24T) | conman port 2002 |
| (unidentified) | 192.168.0.8 | PowerConnect 5324 (Neyland 24T) | conman port 2005? |
**SNMP community:** `kn3lmgmt` (read-only, all switches respond to SNMPv2c)
---
## 3. Cross-rack trunk detail (ch1) -- the critical link
This trunk carries ALL NFS storage traffic between rack 3 (tsys6/7) and
rack 5 (tsys4/5). It is the single most important network path in the cluster.
```mermaid
graph LR
subgraph "core-sw01 (rack5)"
G13["g13<br>1G UP"]
G14["g14<br>1G UP"]
G15["g15<br>1G UP"]
G16["g16<br>1G UP<br>NOT in LAG!"]
G17["g17<br>DOWN<br>in config but<br>no cable"]
end
subgraph "tor3-stor (rack3)"
G20["g20<br>1G UP"]
G21["g21<br>1G UP"]
G22["g22<br>1G UP"]
G23["g23<br>1G UP"]
end
G13 --- G20
G14 --- G21
G15 --- G22
G16 -.- G23
G17 -.->|no cable| G23
```
### Configuration comparison
| Property | core-sw01 (rack5) | tor3-stor (rack3) | Match? |
|----------|-------------------|--------------------|--------|
| Physical ports configured | g(13-15,17) | g(20-23) | **No -- asymmetric** |
| Physical ports UP | g13, g14, g15, g16 | g20, g21, g22, g23 | -- |
| Active in LAG | g13, g14, g15 (3) | g20, g21, g22, g23 (4) | **No -- 3 vs 4** |
| Load-balance hash | layer-2-3 (MAC+IP) | layer-2-3-4 (MAC+IP+Port) | **No -- asymmetric** |
| Channel mode | on (static) | on (static) | Yes (both should be LACP) |
| VLAN | access vlan 1000 | access vlan 1000 | Yes |
### Problems
1. **g16/g17 cable mismatch.** The 4th physical cable from tor3-stor lands on
core-sw01 g16, but the config expects it on g17. g16 is UP (1G, full duplex)
but is NOT in the LAG group. g17 is configured in the LAG but has no cable
(DOWN). Result: **only 3 of 4 links are active**.
2. **Hash policy asymmetry.** core-sw01 hashes on layer-2-3 (src/dst MAC + IP).
tor3-stor hashes on layer-2-3-4 (src/dst MAC + IP + TCP/UDP port). With
layer-2-3 on core-sw01, **all traffic between a given host pair hashes to
one link** regardless of how many TCP connections (nconnect) are used.
3. **Static mode (`on`).** Neither switch runs LACP. There is no link-failure
detection -- a dead cable stays in the LAG until manually discovered.
---
## 4. Complete switch port map
### pfv-core-sw01 (PowerConnect 5448, 48 ports) -- rack 5
| Port | Speed | Status | VLAN | Description / Connected device |
|------|-------|--------|------|-------------------------------|
| g1 | 1000 | UP | 1 | pfvsvrpi (Raspberry Pi) |
| g4 | 100 | UP | 1 | pfv-tsys4 (mgmt, secondary) |
| g5 | -- | UP | 1 | pfv-tsys1 (mgmt) |
| g6 | 100 | UP | 1 | pfvsvrpi (secondary) |
| g8 | 1000 | UP | 1 | pfv-tsys4-mgmt |
| g9 | 1000 | UP | 1 | AP-Wallmount (UAP-AC-LR) **⚠ 2902 inErrors** |
| g10 | 1000 | UP | 1 | (unknown) |
| g11 | 1000 | UP | 1 | (unknown) |
| g12 | 1000 | UP | 1 | (unknown) |
| **g13** | **1000** | **UP** | **1000 (ch1)** | **cross-rack trunk → tor3-stor g20** |
| **g14** | **1000** | **UP** | **1000 (ch1)** | **cross-rack trunk → tor3-stor g21** |
| **g15** | **1000** | **UP** | **1000 (ch1)** | **cross-rack trunk → tor3-stor g22** |
| **g16** | **1000** | **UP** | **1000** | **cross-rack trunk cable (NOT in LAG -- should be g17)** |
| **g17** | -- | **DOWN** | **1000 (ch1)** | **in LAG config but no cable** |
| g19 | 1000 | UP | 1 | pfv-tsys5-mgmt |
| g21 | 1000 | UP | 1 | (unknown) |
| g23 | 100 | UP | 1 | pfv-tsys9 (mgmt) |
| g26 | 1000 | UP | 1 | AP-Tabletop **⚠ 73 inErrors** |
| g27 | 1000 | UP | 1000 | pfv-tsys3-stor (datanet) |
| g31 | 1000 | UP | 1000 | pfv-tsys4-stor (datanet, USB) |
| g32 | -- | -- | -- | pfv-tsys4-storage (configured, DOWN) |
| g33 | -- | -- | -- | pfv-tsys5-stor (ch2, DOWN/Not Present) |
| g34 | 1000 | UP | 1000 (ch3) | pfv-tsys5-stor (bond0, 1 link active) |
| g38 | 1000 | UP | 1000 | pfv-tsys9-stor (datanet) **⚠ 590 inErrors** |
| g40 | 1000 | UP | 1000 | pfv-tsys1-stor (datanet) |
| g41 | 1000 | UP | 1 | (unknown) |
| g43 | 1000 | UP | 1 | pfv-tsys3 (mgmt) |
| g44 | 1000 | UP | 1 | (unknown) |
| g45-g48 | -- | DOWN | -- | (Combo ports, unused) |
**Port-channels on core-sw01:**
| Channel | Speed | Status | Members | VLAN | Notes |
|---------|-------|--------|---------|------|-------|
| ch1 | 1000 | UP | g13-15 (active), g17 (inactive) | 1000 | Cross-rack trunk to tor3-stor |
| ch2 | -- | DOWN | g32-33 (non-candidate) | -- | Unused |
| ch3 | 1000 | UP | g34 (active) | 1000 | tsys5 storage bond (degraded, 1 of 2 links) |
**LAG hash:** `port-channel load-balance layer-2-3`
### pfv-tor3-stor (PowerConnect 5324 / Neyland 24T, 24 ports) -- rack 3
| Port | Speed | Status | VLAN | Description / Connected device |
|------|-------|--------|------|-------------------------------|
| g1 | 1000 | UP | 1 | (unknown -- uplink to tor3-mgmt or router) |
| g2-g7 | 1000 | UP | 1 | (unused but UP) |
| **g8** | **1000** | **UP** | **1000 (ch2)** | **tsys6 stor nic1** |
| **g9** | **1000** | **UP** | **1000 (ch2)** | **tsys6 stor nic2** |
| **g10** | **1000** | **UP** | **1000 (ch3)** | **tsys7 stor nic1** |
| **g11** | **1000** | **UP** | **1000 (ch3)** | **tsys7 stor nic2** |
| **g13** | **1000** | **UP** | **--** | **tsys8-stor (STALE -- tsys8 retired)** |
| **g14** | **1000** | **UP** | **--** | **tsys8-stor (STALE -- tsys8 retired)** |
| g15-g19 | 1000 | UP | 1000 | (unused storage ports) |
| **g20** | **1000** | **UP** | **1000 (ch1)** | **cross-rack trunk → core-sw01 g13** |
| **g21** | **1000** | **UP** | **1000 (ch1)** | **cross-rack trunk → core-sw01 g14** |
| **g22** | **1000** | **UP** | **1000 (ch1)** | **cross-rack trunk → core-sw01 g15** |
| **g23** | **1000** | **UP** | **1000 (ch1)** | **cross-rack trunk → core-sw01 g16** |
| g24 | -- | DOWN | 1 | (spanning-tree disabled, portfast) |
**Port-channels on tor3-stor:**
| Channel | Speed | Status | Members | VLAN | Notes |
|---------|-------|--------|---------|------|-------|
| ch1 | 1000 | UP | g20-23 (`mode on`) | 1000 | Cross-rack trunk to core-sw01 (4x1G) |
| ch2 | 1000 | UP | g8-9 (`mode auto`) | 1000 | tsys6 storage bond (2x1G LACP) |
| ch3 | 1000 | UP | g10-11 (`mode auto`) | 1000 | tsys7 storage bond (2x1G LACP) |
| ch4 | 1000 | UP | g13-14 (`mode on`) | 1000 | **tsys8-stor (STALE -- retired host)** |
**LAG hash:** `port-channel load-balance layer-2-3-4`
### pfv-tor3-mgmt (PowerConnect 5324 / Neyland 24T, 24 ports) -- rack 3
| Port | Speed | Status | Connected device |
|------|-------|--------|-----------------|
| g3 | -- | UP | tsys7 (mgmt nic0) |
| g7 | -- | UP | tsys6 (mgmt nic0) |
(Full port map not captured -- this switch carries only VLAN 1 management
traffic. Low priority for storage performance.)
---
## 5. Per-host network interface reference
| Host | mgmt NIC | Switch port | Storage NIC | Switch port | Storage bond | Bond hash | Storage link speed |
|------|----------|-------------|-------------|-------------|-------------|-----------|-------------------|
| tsys1 | nic0 | core g5 | nic1 (onboard) | core g40 | **No bond** (single NIC) | -- | 1G |
| tsys3 | nic0 | core g43 | enx8cae4ccda774 (USB) | core g27 | **No bond** (USB dongle) | -- | 1G |
| tsys4 | nic0 | core g8 | enx8cae4ccda926 (USB) | core g31 | bond0 (1 slave, USB) | layer2+3 | 1G |
| tsys5 | nic0 | core g19 | nic1 + nic2 | core ch3 (g34) | bond0 (1 of 2 slaves) | layer2+3 | **1G (degraded)** |
| tsys6 | nic0 | tor3-mgmt g7 | nic1 + nic2 | tor3-stor g8/g9 (ch2) | bond0 (2 of 2 slaves) | **layer3+4** | **2G LACP** |
| tsys7 | nic0 | tor3-mgmt g3 | nic1 + nic2 | tor3-stor g10/g11 (ch3) | bond0 (2 of 2 slaves) | **layer3+4** | **2G LACP** |
| tsys9 | nic0 | core g23 | enx9c69d36a5b6c (USB) | core g38 | **No bond** (USB dongle) | -- | 1G |
### Key observations
- **tsys6/7 are the only hosts with working 2G LACP bonds** (layer3+4 hash, 2
active slaves). All NFS traffic from rack 3 uses these bonds.
- **tsys1/3/4/9 use USB dongles** for storage network -- single 1G, no redundancy.
- **tsys5 bond0 is degraded** -- nic2 is DOWN (no cable connected). Only nic1 is
active via core-sw01 ch3 (g34). This is the LACP problem the operator has been
troubleshooting.
- **Bond hash inconsistency:** tsys6/7 use layer3+4 (optimal for nconnect NFS),
tsys4/5 use layer2+3 (suboptimal -- same src/dst IP pair always hashes to one
link even with nconnect's multiple TCP connections).
---
## 6. NFS data flow diagram
```mermaid
graph TB
subgraph "Storage Servers (rack 5)"
T4D2["tsys4 D2<br>WDC Red 3TB<br>Tier 2"]
T4D5["tsys4 D5<br>Hitachi 2TB<br>Tier 2"]
T4D1["tsys4 D1<br>WD 1TB USB<br>Tier 3"]
T4D3["tsys4 D3<br>Seagate 500GB USB<br>Tier 3"]
T5S1["tsys5 S1<br>IronWolf 1TB<br>Tier 2"]
T5S2["tsys5 S2<br>IronWolf 1TB<br>Tier 2"]
T5SSD["tsys5 SSD<br>Samsung 860 PRO<br>Tier 1 (93% full)"]
end
subgraph "VLAN 1000 storage network"
NFS["NFS v4.2<br>nconnect=4<br>rsize/wsize=1MB"]
end
subgraph "NFS Clients"
T1["tsys1 (9 mounts)"]
T3["tsys3 (5 mounts)"]
T5["tsys5 (3 mounts, NO nconnect)"]
T6["tsys6 (9 mounts)"]
T7["tsys7 (9 mounts)"]
T9["tsys9 (5 mounts)"]
end
T4D2 --> NFS
T4D5 --> NFS
T4D1 --> NFS
T4D3 --> NFS
T5S1 --> NFS
T5S2 --> NFS
T5SSD --> NFS
NFS --> T1
NFS --> T3
NFS --> T5
NFS --> T6
NFS --> T7
NFS --> T9
```
### NFS mount inventory (live)
| Server | Export | tsys1 | tsys3 | tsys4 | tsys5 | tsys6 | tsys7 | tsys9 |
|--------|--------|-------|-------|-------|-------|-------|-------|-------|
| tsys4 | D1 | -- | -- | -- | -- | ✓ | ✓ | -- |
| tsys4 | **D2** | ✓ | ✓ | -- | ✓ | ✓ | ✓ | ✓ |
| tsys4 | D3 | -- | -- | -- | ✓ | ✓ | ✓ | -- |
| tsys4 | D5 | -- | ✓ | -- | ✓ | ✓ | ✓ | ✓ |
| tsys5 | S1 | ✓ | -- | -- | -- | ✓ | ✓ | -- |
| tsys5 | S2 | ✓ | ✓ | -- | -- | ✓ | ✓ | -- |
| tsys5 | S3 | ✓ | -- | -- | -- | ✓ | ✓ | ✓ |
| tsys5 | S4 | ✓ | ✓ | -- | -- | ✓ | ✓ | ✓ |
| tsys5 | T5-SSD | -- | ✓ | -- | -- | ✓ | ✓ | ✓ |
(✓ = NFS client mount active. tsys4 = NFS server only, no client mounts.
tsys5 = NFS server + 3 client mounts from tsys4, **missing nconnect**.)
---
## 7. Switch management access
| Method | Details |
|--------|---------|
| **SNMP** | Community `kn3lmgmt` (read-only). All 4 switches respond on VLAN 1 IPs. |
| **Console (conman)** | 7 serial consoles via ser2net + conman on pfv-tsys4. Conman server at `pfv-tsys4:7890` (Tailscale). Escape: `&.` |
| **Console tool** | `perf/scripts/conman-console.py` (PTY-based driver, portable) |
| **SNMP audit tool** | `perf/scripts/snmp-switch-audit.py` (config-driven) |
| **Direct telnet** | `telnet pfv-tsys4 200X` -- ONLY when conmand stopped (conflicts). Use conman instead. |
### Console port assignments
| Port | Console name | Switch | ID_PATH (USB port) |
|------|-------------|--------|---------------------|
| 2001 | pfv-core-sw01 | Dell PowerConnect 5448 (core, rack5) | usb-0:1.5.4.4 |
| 2002 | pfv-tor3-mgmt | Neyland 24T (mgmt TOR, rack3) | usb-0:1.6.3.1 |
| 2003 | pfv-tor3-stor | Neyland 24T (storage TOR, rack3) | usb-0:1.6.3.3.2 |
| 2004 | pfv-rrinfra-rtr | Cisco router (rrinfra) | usb-0:1.6.3.3.1 |
| 2005 | pfv-r2-tor-top | Rack 2 top-of-rack switch | usb-0:1.6.3.3.3 |
| 2006 | subodev-torsw | Suborbital device TOR switch | usb-0:1.5.4.1 |
| 2007 | pfv-r2-sw | Rack 2 old Dell switch | usb-0:1.6.3.2 |
proxmox/docs/PHYSICAL-SYSTEMS.md
+9 -69
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@@ -1,70 +1,10 @@
# Physical Systems (Pi's + other hardware) # proxmox/docs/PHYSICAL-SYSTEMS.md
> **Access patterns and locations for physical infrastructure devices.** > **Documentation moved to Discourse — the canonical source of truth.**
> Updated: 2026-07-31 >
> **Physical infrastructure: Pis, network devices, UniFi APs**
## Raspberry Pi systems >
> **Read it here:** https://community.turnsys.com/t/304
All accessible via Tailscale. Use `localuser` (passwordless sudo to root) >
except where noted. > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
> Do not update content here — edit the Discourse wiki topic instead.*
| Name | Tailscale IP | LAN IP | Access | Purpose |
|------|-------------|--------|--------|---------|
| pfvsvrpi | 100.91.151.113 | 192.168.1.230 | `localuser` | Server Pi (general purpose) |
| subopi-dev-3 | 100.64.231.65 | 192.168.1.232 | via subodev jump | Suborbital dev Pi 3 |
| subopi-dev-4 | 100.65.224.85 | 192.168.1.231 | via subodev jump | Suborbital dev Pi 4 |
> **Note from operator:** "use subodev to get into subopi-*" — subodev is
> a jump host for the suborbital Pi's.
## Network devices discovered (non-Proxmox)
| IP | Device | Type | Identified via |
|----|--------|------|---------------|
| 192.168.0.12 | pfv-core-sw01 | Dell PowerConnect 5448 | SNMP |
| 192.168.0.7 | pfv-tor3-mgmt | Neyland 24T (PC5324) | SNMP |
| 192.168.0.8 | (unidentified) | Neyland 24T (PC5324) | SNMP |
| 192.168.0.9 | pfv-tor3-stor | Neyland 24T (PC5324) | SNMP |
| 192.168.1.166 | pfv-stor1 | Linux 4.14.22 (Synology?) | SNMP |
| 192.168.1.182 | UAP-AC-LR | UniFi AP (FW 6.8.2.15592) | SNMP |
| 192.168.1.230 | pfvsvrpi | Linux 6.12.62 (RPi) | SNMP |
| 192.168.1.231 | subopi-dev-4 | Linux 6.12.25 (RPi) | SNMP |
| 192.168.1.232 | subopi-dev-3 | Linux 6.12.9 (RPi) | SNMP |
| 192.168.1.217 | subopi3 | Linux 6.12.25 (RPi) | SNMP |
## Other identified hosts (SSH open, unidentified)
| IP | Notes |
|----|-------|
| 192.168.0.72 | SSH open, no SNMP — investigate |
| 192.168.0.250 | SSH open, no SNMP — investigate |
| 192.168.1.138 | SSH open — investigate |
| 192.168.1.181 | SSH open — investigate |
| 192.168.1.192 | SSH open — investigate |
| 192.168.1.201 | SSH open — investigate |
| 192.168.1.205 | SSH open — investigate |
| 192.168.1.214 | SSH open — investigate |
| 192.168.1.223 | SSH open — investigate |
| 192.168.1.226 | SSH open — investigate |
| 192.168.1.228 | SSH open — investigate |
| 192.168.2.5 | SSH open — investigate (tsys3 vmbr0) |
| 192.168.3.1 | SSH open — investigate (gateway/router?) |
| 192.168.3.78 | SSH open — investigate |
## 192.168.3.12-24 range
These 13 hosts respond to ping but have no SSH/SNMP. Likely:
- IoT devices
- Cameras
- Phones (VoIP)
- Other DHCP clients
## UniFi Access Points
| AP | Port (core-sw01) | Model | FW |
|----|-----------------|-------|-----|
| UAP-AC-LR | g9 (2902 inErrors!) | UAP-AC-LR | 6.8.2.15592 |
| UAP-AC-Lite | g38 (590 inErrors!) | UAP-AC-Lite | (unknown) |
Both managed by UniFi controller (likely on Home Assistant VM 100 or
pfv-stor1). UniPoller exports metrics to Prometheus.
proxmox/docs/PROJECT.md
+10 -857
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@@ -1,857 +1,10 @@
# Proxmox Cluster Project Report # proxmox/docs/PROJECT.md
**Date:** 2026-07-27 (re-audited) > **Documentation moved to Discourse — the canonical source of truth.**
**Prepared by:** Performance Optimization Engagement >
**Status:** Comprehensive fleet assessment with VM placement and redundancy analysis > **Comprehensive fleet report**
>
**Data freshness:** All 7 hosts re-audited at 21:50 CDT 2026-07-27 via > **Read it here:** https://community.turnsys.com/t/304
`deploy-check.sh`. VM placements reflect live state after user's PDM >
migrations. This is ground truth. > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
> Do not update content here — edit the Discourse wiki topic instead.*
---
## Table of Contents
1. [Executive Summary](#1-executive-summary)
2. [Host Fleet](#2-host-fleet)
3. [Storage Architecture](#3-storage-architecture)
4. [VM Fleet Inventory](#4-vm-fleet-inventory)
5. [Kubernetes Node Distribution](#5-kubernetes-node-distribution)
6. [Storage Redundancy Analysis](#6-storage-redundancy-analysis)
7. [Local SSD/NVMe Opportunity](#7-local-ssdnvme-opportunity)
8. [Role Alignment Audit](#8-role-alignment-audit)
9. [Network Findings](#9-network-findings)
10. [Recommendations](#10-recommendations)
11. [Hardware End-of-Support Exposure](#11-hardware-end-of-support-exposure)
12. [Open Items](#12-open-items)
---
## 1. Executive Summary
The cluster consists of 7 active Proxmox hosts and 1 incoming (pfv-tsys2),
running 43 VMs across two NFS storage servers (tsys4, tsys5). Host-side
performance tunings are complete on 5 of 7 hosts. Two hosts (tsys4, tsys5)
are blocked on physical hardware work scheduled for Friday.
**Progress since initial audit:** The user has been actively rebalancing k8s
nodes via PDM. Storage distribution improved from 90%/10% (tsys4/tsys5) to
73%/27%. One cnode now uses tsys5 storage (cnode5 on S2). More migration
needed for etcd quorum survival.
The VM-layer assessment reveals:
| # | Finding | Severity | Status |
|---|---------|----------|--------|
| 1 | **4 of 5 cnodes still store disks on tsys4 NFS.** cnode5 moved to tsys5. Still need 1-2 more moves for quorum survival. | **CRITICAL** | Improving |
| 2 | **Both -01/-02 infrastructure pairs (netinfra, UCS) on tsys4 NFS only.** | **HIGH** | TODO today |
| 3 | **No k8s node uses SSD or NVMe yet.** tsys3 has 349 GB unused local NVMe; tsys9 has 136 GB local SSD. | **HIGH** | Deferred to k8s session |
| 4 | **D3 SSD (tsys4, USB) is 99% empty (445 GB free).** Moving to tsys5 SAS Friday. | **MEDIUM** | Friday |
---
## 2. Host Fleet
### 2.1 Inventory
| Host | Model | CPU (year) | Cores | RAM | Local Disk | Role (intended) | Tuning |
|------|-------|-----------|-------|-----|-----------|-----------------|--------|
| pfv-tsys1 | OptiPlex 9020 | i7-4770 Haswell (2013) | 4c/8t | 32 GB DDR3 | HDD (LVM-thin) | **Infrastructure** | Done |
| pfv-tsys2 | Precision 5520 | i7-7820HQ Kaby Lake (2017) | 4c/8t | 32 GB (max) | **NVMe 512GB + SATA SSD 1TB** | **Kubernetes** | Incoming (Win10) |
| pfv-tsys3 | Precision 7510 | Xeon E3-1535M v5 Skylake (2015) | 4c/8t | 32 GB DDR4 | HDD (LVM-thin) | **Kubernetes** | Done |
| pfv-tsys4 | Precision T1700 | Xeon E3-1246 v3 Haswell (2013) | 4c/8t | 16 GB DDR3 | 6 disks (HDD+SSD+SMR) | **Storage (NFS+PBS)** | Blocked (NIC+RAM) |
| pfv-tsys5 | Precision T7500 | Xeon E5620 Westmere (2010) | 4c/8t | 96 GB DDR3 | 6 disks (HDD+SSD) | **Storage (NFS+VMs)** | Blocked (cable) |
| pfv-tsys6 | PowerEdge R610 | 2x Xeon E5530 Nehalem (2009) | 8c/16t | 128 GB DDR3 | HDD (LVM-thin) | **Kubernetes** | Done |
| pfv-tsys7 | PowerEdge R620 | 2x Xeon E5-2630 v2 Ivy Bridge (2013) | 12c/24t | 192 GB DDR3 | HDD (LVM-thin) | **Kubernetes** | Done |
| pfv-tsys9 | OptiPlex 7080 | i5-10500 Comet Lake (2020) | 6c/12t | 24 GB DDR4 | **250 GB SSD** (PNY CS900) | **Infrastructure** | Done |
### 2.2 Role taxonomy (per user directive)
| Role | Hosts | Workload |
|------|-------|----------|
| **Infrastructure + k8s control** | tsys1, tsys9 | Infra VMs (netinfra, UCS, PBS, CA, HA) + pfv-k8s cnodes (control plane) + small wnodes |
| **Kubernetes workers** | tsys2, tsys3, tsys6, tsys7 | pfv-k8s wnodes (heavy workers) -- these hosts have the RAM (32-192 GB) for ETL/HPC |
| **Storage** | tsys4, tsys5 | NFS server + PBS backup target. tsys5 also runs sectestbed/preprod VMs |
**Design rationale:** cnodes (control plane) are lightweight (4 cores, 4 GB
RAM each) and are weighted toward tsys1/tsys9 to keep the heavy RAM/CPU hosts
(tsys6 with 128 GB, tsys7 with 192 GB) free for large worker nodes. wnodes
run one per hypervisor host across the fleet to maximize total cluster capacity.
pfv-k8s runs all R&D and RackRental (containerlab) workloads via Kubernetes.
Production (Gitea, RustFS, Redmine, websites) lives on a VPS in Reston, VA
running Cloudron -- not in this cluster.
---
## 3. Storage Architecture
### 3.1 NFS exports from tsys4 (primary storage server)
| Export | Disk model | Type | Bus | Total | Used | Free | Use% |
|--------|-----------|------|-----|-------|------|------|------|
| D2 | WDC WD30EFRX Red | HDD (7200rpm) | SATA | 2.7 TB | 187 GB | **2.4 TB** | 8% |
| ~~D3~~ | ~~SK hynix SC300~~ | ~~SSD~~ | ~~USB~~ | — | — | — | **moving to tsys5 Friday** |
| D5 | Hitachi HDS72302 | HDD (7200rpm) | SATA | 1.8 TB | 236 GB | **1.5 TB** | 14% |
Non-exported disks on tsys4:
- sda (Hitachi 1.8T) at /mnt/albert -- not NFS shared, 1.7 TB free
- sdd (WDC 1T) -- **idle, unmounted, removable** (free up for other use)
- sdf (WDC 4.5T SMR) at /mnt/backup -- **PBS backup target**, 4.3 TB free
**D3 migration (Friday):** The SK hynix SC300 SSD is currently USB-attached on
tsys4 (via a "ThinkPad SSD" USB adapter). It is moving to a tsys5 SAS port,
eliminating the USB bottleneck. tsys4's 4 SATA ports are all occupied (sda/sdb
/sdc/sdd), so tsys5 is the better target. See section 3.2.
### 3.2 NFS exports from tsys5 (secondary storage -- becoming the fast-tier hub)
| Export | Disk model | Type | Bus | Total | Used | Free | Use% |
|--------|-----------|------|-----|-------|------|------|------|
| S1 | Seagate ST1000VN | HDD | SAS | 916 GB | 60 GB | 810 GB | 7% |
| S2 | Seagate ST1000VN | HDD | SAS | 916 GB | **6.9 GB** | **863 GB** | **1%** |
| S3 | Seagate ST1000VN | HDD | SAS | 916 GB | 7.0 GB | **863 GB** | **1%** |
| S4 | Toshiba DT01ACA050 | HDD | SAS | 458 GB | 2 MB | **435 GB** | **0%** |
| T5-SSD | Samsung 860 PRO | **SSD** | SAS | 234 GB | **122 GB** | **101 GB** | **55%** |
| **D3** (Friday) | SK hynix SC300 | **SSD** | **SAS** | **469 GB** | **2 MB** | **445 GB** | **0%** |
**tsys5 storage controllers (plenty of free ports):**
- LSI SAS1068E (SAS 6/iR): 8 ports, 3 used (Samsung SSD, Hitachi, Seagate),
**5 free**
- Intel ICH10 SATA #1 (4-port): 2 used (Seagate S3, Toshiba S4), **2 free**
- Intel ICH10 SATA #2 (2-port): **status unknown, likely free**
- 2x Renesas USB 3.0 xHCI controllers (real USB 3.0, unlike tsys6/7)
**Key finding: S2 and S3 now have k8s node disks.** S2 holds cnode5 +
wnode-tsys1 + wnode-tsys9 (6.9 GB used). S3 has wnode-tsys9's old disk
(unused, 7 GB). S4 still 99% empty (435 GB free).
T5-SSD grew to 55% used (122 GB) -- ultix-streaming is the primary consumer.
**Friday additions:**
1. **D3 (SK hynix SSD)** moves from tsys4 USB to tsys5 SAS port. Eliminates
USB 2.0 bottleneck. Becomes the second SSD-tier NFS export.
2. **PCI NVMe drive** (local-only, not NFS-exported). Used for wnode-tsys5
boot disk and HPC scratch. The fastest tier in the fleet.
After Friday, **tsys5 consolidates all fast storage**: NVMe (local) + 2 SSD
NFS exports (D3 + T5-SSD) + 4 HDD NFS exports (S1-S4). This makes tsys5 the
natural home for latency-sensitive workloads and the k8s StorageClass design
center.
### 3.3 Local storage tiers (per host, with utilization)
| Host | Storage ID | Disk type | Bus | Total | Used | Free | Used by VMs? |
|------|-----------|-----------|-----|-------|------|------|-------------|
| tsys1 | local-lvm | HDD | SATA | ~90 GB | low | ~90 GB | No (all VMs on NFS) |
| **tsys3** | **local-lvm** | **NVMe (Samsung PM961)** | **NVMe** | **349 GB** | **0 GB** | **349 GB** | **No (all VMs on NFS)** |
| tsys4 | local-lvm | HDD | SATA | ~94 GB | PBS VM | ~62 GB | Yes (PBS VM 400) |
| tsys5 | local-lvm | HDD (Hitachi 1.8T) | SATA | 1.7 TB | 40 MB | **1.7 TB** | No |
| tsys5 | local-nonprod | HDD (Seagate 1T, =S1) | SATA | 916 GB | 53 GB | **856 GB** | Yes (sectestbed suite) |
| **tsys6** | **local-lvm** | **HDD (WD My Passport)** | **USB 2.0** | **1.7 TB** | **0 GB** | **1.7 TB** | **No -- DO NOT USE for VM storage** |
| **tsys7** | **local-lvm** | **HDD (WD portable)** | **USB 2.0** | **1.7 TB** | **0 GB** | **1.7 TB** | **No -- DO NOT USE for VM storage** |
| **tsys9** | **local-lvm** | **SSD (PNY CS900)** | **SATA** | **136 GB** | **0 GB** | **136 GB** | **No (all VMs on NFS)** |
| **tsys2** | **NVMe** (Samsung 960 PRO) | **NVMe** | **NVMe** | **512 GB** | (Win10) | **512 GB** | **Incoming -- fastest boot tier after tsys5 NVMe** |
| **tsys2** | **SATA SSD** (Samsung 850 EVO) | **SSD** | **SATA** | **1 TB** | (Win10) | **1 TB** | **Incoming -- bulk data on SSD, not rust** |
**CRITICAL WARNING: tsys6 and tsys7 local-lvm is USB 2.0 portable HDD.**
The entire Proxmox OS, swap, and local-lvm on both R610 and R620 run on a
single **USB 2.0-attached WD My Passport portable HDD** (tsys6: "My Passport
260D"; tsys7: "Drive 2657"). Both servers' only USB controllers are EHCI
(USB 2.0, ~480 Mbps). There is **no USB 3.0/xHCI** on either host.
**USB 2.0 practical throughput is ~30-35 MB/s.** This is 3-4x SLOWER than
NFS-over-HDD (~80-120 MB/s). Moving wnode boot disks to local-lvm on these
hosts would **decrease** performance. local-lvm on tsys6/7 must NOT be used
for VM storage.
Additionally, both servers have completely empty internal drive bays:
- **tsys6**: SAS controller present but **DISABLED** in BIOS. No internal
drives.
- **tsys7**: 6-port SATA AHCI controller present, **5 ports EMPTY** (only
DVD-ROM on port 5). No internal drives.
This is a reliability risk beyond performance: the entire host OS boots
from a consumer-grade portable USB drive not designed for 24/7 server use.
**tsys3 correction:** Previously documented as HDD. Actually boots from a
**Samsung PM961 NVMe 512GB SSD** -- the fastest existing local storage in the
fleet. Its 349 GB of local-lvm is excellent for wnode boot disk use.
**Critical observation: every k8s host has 0% used local-lvm.** tsys3
(Samsung PM961 **NVMe**, 349 GB), tsys6 (WD My Passport **USB 2.0** HDD,
1.7 TB), tsys7 (WD portable **USB 2.0** HDD, 1.7 TB) all have unused local
storage.
**However, only tsys3's local-lvm is suitable for VM storage.** tsys6 and
tsys7 local-lvm is USB 2.0 portable HDD (~30-35 MB/s) -- slower than
NFS-over-HDD and unsuitable for wnode boot disks.
### 3.4 Disk speed tiers summary
| Tier | Where | Speed class | Best for |
|------|-------|------------|----------|
| **NVMe** | tsys3 (Samsung PM961), tsys5 (Friday addition), **tsys2 (Samsung 960 PRO 512GB)** | 2000-3500 MB/s | HPC scratch, ETL staging, container runtime, wnode boot, etcd |
| **Local SSD** | tsys9 (PNY CS900, 136 GB), **tsys2 (Samsung 850 EVO 1TB)** | 500 MB/s | wnode boot disk, etcd |
| **NFS-SSD** | tsys5 D3 (SK hynix, **SAS post-Friday**), tsys5 T5-SSD (Samsung) | 200-400 MB/s over NFS | **k8s worker scratch only** (etcd, container cache, ephemeral volumes) |
| **NFS-HDD** | tsys4 D2/D5, tsys5 S1-S4 | 80-120 MB/s over NFS | Bulk data, large disks, non-critical VMs, **wnode boot on tsys6/7** |
| **Local SATA HDD** | tsys1 local-lvm | 100-150 MB/s | Host OS only |
| **USB 2.0 HDD** | tsys6/7 local-lvm (WD My Passport) | **~30-35 MB/s** | **NOTHING -- slower than NFS, do not use for VMs** |
### 3.5 Storage tier characterization per host
| Host | Storage profile | Detail |
|------|----------------|--------|
| **tsys2** | **SSD/NVMe only** | 960 PRO NVMe 512GB + 850 EVO SATA SSD 1TB. No spinning disk. |
| **tsys3** | **NVMe only** | Samsung PM961 NVMe 512GB. No spinning disk. |
| **tsys5** | **Hybrid** (fast-tier hub) | NVMe (local, Friday) + D3 SSD + T5-SSD + S1-S4 HDD |
| **tsys4** | **Bulk/spinning disk only** | D2 HDD 3TB + D5 HDD 2TB. D3 SSD leaving Friday. PBS target on SMR HDD. |
| **tsys9** | **Local SSD + NFS** | PNY CS900 SSD 136GB local + NFS client |
| **tsys1** | **Local HDD + NFS** | Small local-lvm + NFS client |
| **tsys6/7** | **NFS only** | local-lvm is USB 2.0 HDD (unusable for VMs). All VMs on NFS. |
### 3.6 All exports are single-disk with no redundancy
Every NFS export is a single physical disk formatted ext4. No RAID, no ZFS
mirror, no mdraid. A single disk failure takes down every VM whose disk lives
on that export. This applies to **both storage servers** and to the **PBS
backup target** (a single 4.5T SMR drive).
---
## 4. VM Fleet Inventory
### 4.1 Complete VM roster (running VMs only, 40 VMs across 7 hosts)
#### tsys1 (Infrastructure) -- 11 running VMs
| VMID | Name | Cores | RAM (MB) | Disk | Storage | Tier |
|------|------|-------|----------|------|---------|------|
| 100 | pfv-bms (HomeAssistant) | 2 | 4096 | 32 GB | D2 (tsys4 HDD) | NFS |
| 101 | tsys-ca | 2 | 2048 | 32 GB | D2 (tsys4 HDD) | NFS |
| 103 | **pfv-netinfra-01** | 2 | 2048 | 32 GB | D5 (tsys4 HDD) | NFS |
| 104 | tsys-librenms | 2 | 2048 | 50 GB | D2 (tsys4 HDD) | NFS |
| 105 | tsys-proxmox-datacenter | 2 | 2048 | 32 GB | D2 (tsys4 HDD) | NFS |
| 106 | **pfv-k8s-cnode3** | 2 | 4096 | 32 GB | D2 (tsys4 HDD) | NFS |
| 107 | **pfv-k8s-cnode1** | 2 | 4096 | 32 GB | D5 (tsys4 HDD) | NFS |
| 108 | **tsys-ucs-01** | 2x2 | 8000 | 32 GB | D2 (tsys4 HDD) | NFS |
| 109 | tailscale-router | 2 | 2048 | 25 GB | D2 (tsys4 HDD) | NFS |
| 114 | kali-tsys | 2 | 2048 | 32 GB | D2 (tsys4 HDD) | NFS |
| 117 | tsys-secure-workbench | 2 | 4000 | 32 GB | D2 (tsys4 HDD) | NFS |
#### tsys3 (Kubernetes) -- 1 running VM
| VMID | Name | Cores | RAM (MB) | Disk | Storage | Tier |
|------|------|-------|----------|------|---------|------|
| 313 | **pfv-k8s-wnode-tsys3** | 4x2 | 20000 | 32 GB | D5 (tsys4 HDD) | NFS |
#### tsys4 (Storage) -- 1 running VM
| VMID | Name | Cores | RAM (MB) | Disk | Storage | Tier |
|------|------|-------|----------|------|---------|------|
| 400 | pfv-proxmox-backup-server | 2 | 2048 | 32 GB | local-lvm | LOCAL |
#### tsys5 (Storage) -- 15 running VMs
| VMID | Name | Cores | RAM (MB) | Disk | Storage | Tier |
|------|------|-------|----------|------|---------|------|
| 509 | **pfv-k8s-wnode-tsys5** | 2x4 | 32000 | 32 GB | D2 (tsys4 HDD) | NFS |
| 5101 | sectestbed-siem | 2x2 | 10000 | 132 GB | local-nonprod | LOCAL |
| 5105 | sectestbed-awx | 2x2 | 4096 | 288 GB | local-nonprod | LOCAL |
| 5106 | sectestbed-k8s-cnode | 2x2 | 4096 | 32 GB | local-nonprod | LOCAL |
| 5107 | sectestbed-k8s-wnode | 2x2 | 4096 | 32 GB | local-nonprod | LOCAL |
| 5108 | sectestbed-librenms | 2x2 | 4096 | 32 GB | local-nonprod | LOCAL |
| 5109 | sectestbed-netinfra | 2x2 | 4096 | 32 GB | local-nonprod | LOCAL |
| 5111 | ultix-streaming | 2x2 | 9000 | 288 GB | T5-SSD (tsys5 SSD) | NFS-SSD |
| 5112 | ultix-offstage | 2x2 | 6000 | 288 GB | local-lvm | LOCAL |
| 6000 | sectestbed-sandbox | 2x2 | 4096 | 32 GB | local-nonprod | LOCAL |
| 51010 | sectestbed-tctc | 2x2 | 4096 | 32 GB | local-nonprod | LOCAL |
| 51011 | sectestbed-cloudron | 2x2 | 4096 | 32 GB | local-nonprod | LOCAL |
| 51012 | sectestbed-hfnoc | 2x2 | 4096 | 32 GB | local-nonprod | LOCAL |
| 51013 | sectestbed-rancherplatform | 2x2 | 4096 | 32 GB | local-nonprod | LOCAL |
| 53100 | tsys-preprod-awx | 2x2 | 9000 | 160 GB | local-nonprod | LOCAL |
| 53101 | tsys-preprod-siem | 2x2 | 12000 | 32 GB | local-nonprod | LOCAL |
| 53102 | tsys-preprod-rancherplatform | 2x2 | 8000 | 32 GB | local-nonprod | LOCAL |
#### tsys6 (Kubernetes) -- 3 running VMs (1 wnode stopped)
| VMID | Name | Cores | RAM (MB) | Disk | Storage | Tier |
|------|------|-------|----------|------|---------|------|
| 100 | pfv-k8s-wnode-tsys6 | 2x2 | 32000 | 32 GB | D5 (tsys4 HDD) | NFS -- **STOPPED** |
| 600 | tsys-awx | 2x2 | 12000 | 32 GB | D2 (tsys4 HDD) | NFS -- **STOPPED** |
| 601 | **pfv-k8s-cnode4** | 4 | 4096 | 32 GB | D2 (tsys4 HDD) | NFS |
| 602 | **pfv-k8s-cnode5** | 4 | 4096 | 32 GB | D5 (tsys4 HDD) | NFS |
| 603 | **pfv-k8s-cnode2** | 4 | 4096 | 32 GB | D2 (tsys4 HDD) | NFS |
#### tsys7 (Kubernetes) -- 4 running VMs
| VMID | Name | Cores | RAM (MB) | Disk | Storage | Tier |
|------|------|-------|----------|------|---------|------|
| 701 | **pfv-k8s-wnode-tsys7** | 4 | 32000 | 32 GB | D5 (tsys4 HDD) | NFS |
| 702 | hfnoc-uisp | 2x2 | 8000 | 100 GB | D2 (tsys4 HDD) | NFS |
| 703 | rr-middleware | 2 | 2048 | 32 GB | D2 (tsys4 HDD) | NFS |
| 704 | TCTC | 4 | 6000 | 32 GB | D2 (tsys4 HDD) | NFS |
#### tsys9 (Infrastructure) -- 5 running VMs
| VMID | Name | Cores | RAM (MB) | Disk | Storage | Tier |
|------|------|-------|----------|------|---------|------|
| 901 | tsys-siem | 2 | 8000 | 132 GB | D2 (tsys4 HDD) | NFS |
| 902 | **tsys-ucs-02** | 2x2 | 8000 | 50 GB | D5 (tsys4 HDD) | NFS |
| 903 | kali-rd | 2 | 2048 | 32 GB | D5 (tsys4 HDD) | NFS |
| 904 | **pfv-netinfra-02** | 2 | 4000 | 32 GB | D2 (tsys4 HDD) | NFS |
| 905 | **pfv-k8s-wnode-tsys9** | 4 | 4096 | 32 GB | S3 (tsys5 HDD) | NFS |
### 4.2 Storage concentration summary
| Storage target | # of running VMs | % of fleet |
|---------------|-----------------|------------|
| **D2 (tsys4 WDC Red 3TB HDD)** | **18** | **45%** |
| D5 (tsys4 Hitachi 2TB HDD) | 9 | 23% |
| local-nonprod (tsys5 local HDD) | 10 | 25% |
| S3 (tsys5 Seagate 1TB HDD) | 1 | 3% |
| T5-SSD (tsys5 Samsung SSD) | 1 | 3% |
| local-lvm (tsys4 local) | 1 | 3% |
**27 of 40 running VMs (68%) store their disks on tsys4 NFS exports.**
If tsys4 goes offline, two-thirds of the fleet loses its storage.
---
## 5. Kubernetes Node Distribution (re-audited 21:50 CDT)
### 5.1 pfv-k8s cnode (control plane) placement -- CURRENT
| VMID | Name | Hypervisor | Storage | NFS Server | Changed? |
|------|------|------------|---------|-----------|----------|
| 906 | cnode1 | **tsys9** | D5 | tsys4 | **MOVED from tsys1** |
| 705 | cnode2 | **tsys7** | D2 | tsys4 | **MOVED from tsys6** |
| 106 | cnode3 | tsys1 | D2 | tsys4 | no change |
| 601 | cnode4 | tsys6 | D2 | tsys4 | no change |
| 706 | cnode5 | **tsys7** | **S2** | **tsys5** | **MOVED from tsys6, storage moved D5→S2** |
**Storage distribution:**
| Storage server | cnodes | Quorum impact if it fails |
|---------------|--------|--------------------------|
| tsys4 (D2+D5) | **4** (cnode1,2,3,4) | Only cnode5 survives = **QUORUM LOST** |
| tsys5 (S2) | **1** (cnode5) | 4 survive = quorum OK |
**Progress:** cnode5 is now on tsys5 (was all 5 on tsys4). But 4-of-5 on tsys4
still means a tsys4 failure loses quorum. **Need 2 more cnodes on tsys5.**
**Host distribution:** cnodes spread across 4 hosts (tsys1, tsys6, tsys7,
tsys9) -- good host diversity.
### 5.2 pfv-k8s wnode (worker) placement -- CURRENT
| VMID | Name | Hypervisor | Storage | NFS Server | RAM | Status | Changed? |
|------|------|------------|---------|-----------|-----|--------|----------|
| 102 | wnode-tsys1 | tsys1 | S2 | tsys5 | 4 GB | **STOPPED** | **NEW** |
| 313 | wnode-tsys3 | tsys3 | D5 | tsys4 | **28 GB** | running | **RAM bumped 20→28** |
| 509 | wnode-tsys5 | tsys5 | D2 | tsys4 | 32 GB | running | no change |
| 100 | wnode-tsys6 | tsys6 | D5 | tsys4 | 32 GB | running | **NOW RUNNING** |
| 701 | wnode-tsys7 | tsys7 | D5 | tsys4 | 32 GB | running | no change |
| 905 | wnode-tsys9 | tsys9 | **S2** | tsys5 | 4 GB | running | **Storage moved S3→S2** |
**One wnode per host achieved** (tsys1,3,5,6,7,9). wnode-tsys1 is created but
stopped. wnode-tsys6 restarted.
**Storage distribution:**
| Storage server | wnodes | Notes |
|---------------|--------|-------|
| tsys4 (D2+D5) | 4 (tsys3,5,6,7) | Still concentrated |
| tsys5 (S2) | 2 (tsys1,tsys9) | Improving |
### 5.3 Summary: k8s node storage distribution
| Storage server | cnodes | wnodes | Total k8s nodes |
|---------------|--------|--------|-----------------|
| **tsys4 NFS** | **4 (80%)** | **4 (67%)** | **8 (73%)** |
| **tsys5 NFS** | **1 (20%)** | **2 (33%)** | **3 (27%)** |
| Local SSD/NVMe | 0 | 0 | 0 (0%) |
**Was 90%/10%. Now 73%/27%.** Improving but still tsys4-heavy. Target: 3
cnodes on each storage server (60/40 or better) so either server failing
leaves quorum intact.
### 5.4 Remaining cnode migration needed for etcd quorum survival
To survive a tsys4 failure with quorum (3 of 5 alive), at least 3 cnodes must
be on tsys5:
| Action | Effect |
|--------|--------|
| Move cnode3 (D2→S3 on tsys5) | 3 cnodes on tsys5, 2 on tsys4. tsys4 fail = 3 survive |
| Move cnode4 (D2→S2 on tsys5) | Same result, different disk |
| Leave cnode1 and one other on tsys4 | tsys5 fail = 4 survive (OK) |
**Simplest path:** migrate cnode3 and cnode4 storage to tsys5 (S3 and S2) via
PDM. Then tsys4 failure leaves cnode5 + cnode3 + cnode4 = 3 of 5 = quorum OK.
### 5.5 Future k8s architecture (next session -- see [K8S.md](K8S.md))
The k8s layer will be tackled soon. Key requirements from user:
- **Platform:** vcluster + Rancher for multi-tenant management
- **Auth:** OIDC to Keycloak (running on Cloudron in Reston, VA production)
- **Workload isolation (vcluster per tenant):**
- RackRental workloads (containerlab network labs)
- Suborbital ITAR (compliance-restricted)
- Suborbital non-ITAR
- Starting Line Productions customer workloads
- **Solar-aware scale-out:** PowerEdge 19xx and 2950 systems (older hardware)
will be brought online during peak solar production for burst capacity.
These older cores/ram supplement the main fleet when power is abundant.
- **WNode sizing:** every Proxmox node will have a wnode. Some nodes will host
both cnodes + wnodes. Worker sizes will vary from small (4 GB, fitting into
leftover host capacity) to large (28-32 GB, consuming most of a host).
- **Friday final audit:** tsys2 will be loaded with Proxmox on Friday, and a
full final audit will be performed at that time (post-NVMe install on tsys5,
post-D3 SSD relocation, post-tsys4 NIC+RAM).
### 5.4 sectestbed k8s nodes (separate from pfv-k8s)
tsys5 also hosts a separate sectestbed kubernetes stack using local storage:
| VMID | Name | Storage |
|------|------|---------|
| 5106 | sectestbed-k8s-cnode | local-nonprod (local HDD) |
| 5107 | sectestbed-k8s-wnode | local-nonprod (local HDD) |
These are on local storage (good -- no NFS dependency) but on a single host's
single local disk (no redundancy). They are isolated from the pfv-k8s cluster.
---
## 6. Storage Redundancy Analysis
### 6.1 -01/-02 infrastructure pair audit
Two -01/-02 pairs exist in the fleet:
**Pair 1: pfv-netinfra (network infrastructure)**
| Role | VMID | Host | Storage | NFS Server |
|------|------|------|---------|-----------|
| -01 | 103 | tsys1 | D5 | **tsys4** |
| -02 | 904 | tsys9 | D2 | **tsys4** |
**Verdict: HOST redundancy OK (different hosts), STORAGE redundancy FAILED.**
Both halves depend on tsys4. If tsys4 goes down, both netinfra VMs lose their
disks. The -02 half should be on an S2/S3/S4 export from tsys5.
**Pair 2: tsys-ucs (Univention Corporate Server)**
| Role | VMID | Host | Storage | NFS Server |
|------|------|------|---------|-----------|
| -01 | 108 | tsys1 | D2 | **tsys4** |
| -02 | 902 | tsys9 | D5 | **tsys4** |
**Verdict: HOST redundancy OK (different hosts), STORAGE redundancy FAILED.**
Same issue. Both halves on tsys4. The -02 half should be on tsys5 storage.
### 6.2 Redundancy principle for paired VMs
For any -01/-02 pair to survive a single storage server failure:
```
-01 VM disk -> tsys4 NFS export (D2/D3/D5)
-02 VM disk -> tsys5 NFS export (S2/S3/S4/T5-SSD)
```
This ensures that losing either tsys4 or tsys5 takes down only one half of
the pair. Currently, **both pairs fail this test** because both halves are on
tsys4.
### 6.3 NFS server failure blast radius
If **tsys4** goes offline (USB NIC failure, disk failure, reboot):
| Impact | Count |
|--------|-------|
| k8s cnodes that lose storage | 5 of 5 (**etcd quorum lost**) |
| k8s wnodes that lose storage | 4 of 5 |
| Infrastructure VMs that lose storage | 11 of 12 on tsys1 (all on D2/D5) |
| Total VMs that lose storage | **27 of 40 (68%)** |
If **tsys5** goes offline:
| Impact | Count |
|--------|-------|
| k8s cnodes that lose storage | 0 of 5 |
| k8s wnodes that lose storage | 1 of 5 |
| Total VMs that lose storage | 1 of 40 (3%) |
**tsys4 is a massive blast-radius liability. tsys5 is barely used.**
Rebalancing VM storage across both servers dramatically reduces risk.
---
## 7. Local SSD/NVMe Opportunity
### 7.1 Available fast tiers (currently unused by k8s)
| Host | Device | Type | Size | Available for VMs? | Currently used by k8s? |
|------|--------|------|------|--------------------|-----------------------|
| tsys4 | D3 (SK hynix SC300, USB) | SSD | 512 GB | Yes (via NFS) | **No** |
| tsys5 | T5-SSD (Samsung 860 PRO) | SSD | 256 GB | Yes (via NFS) | **No** (used by ultix-streaming) |
| tsys5 | **New NVMe (Friday)** | **NVMe** | TBD | **Yes (local or NFS)** | **No** |
| tsys9 | local-lvm (PNY CS900) | SSD | 137 GB free | Yes (local) | **No** |
### 7.2 Why local storage matters for k8s nodes
Kubernetes nodes are latency-sensitive in two specific areas:
1. **etcd (control plane):** etcd writes are synchronous and latency-critical.
On NFS over HDD, every etcd write traverses: VM -> virtio-scsi -> NFS
client -> TCP -> USB dongle (on tsys4) -> ext4 -> spinning disk. Typical
latency: 2-10 ms per write. On local SSD: 0.1-0.5 ms. On NVMe: 0.02-0.1 ms.
This directly affects k8s API responsiveness and pod scheduling speed.
2. **Container image pulls:** Worker nodes pull container images frequently.
On NFS-over-HDD, image layer extraction is seek-bound and slow. Local SSD
eliminates the network hop and reduces seek time. This matters most for
RackRental/containerlab workloads that spin up containers rapidly.
### 7.3 Current waste: tsys9 local SSD
tsys9 has a 250 GB PNY CS900 SSD with 137 GB of LVM-thin space available.
**Zero VMs use it.** All 5 VMs on tsys9 boot from NFS. The local SSD sits
idle. wnode-tsys9 (VM 905) would benefit significantly from local SSD --
its disk is currently on S3 (tsys5 NFS over a Seagate HDD).
### 7.4 Upcoming opportunity: tsys5 NVMe (Friday)
The PCI NVMe being added to tsys5 will be the fastest storage tier in the
fleet. Two placement options:
**Option A: NFS-export the NVMe (shared).** All hosts can use it. Good for
VMs that might need migration. Adds the NFS/network overhead back.
**Option B: Local-only on tsys5.** VMs on tsys5 get full NVMe speed with no
network overhead. Best for k8s wnode-tsys5 and sectestbed VMs. Cannot be
accessed from other hosts.
**Recommendation:** Option B (local-only). k8s worker nodes do not need
shared storage -- pods are ephemeral and reschedule on failure. The NVMe
should be formatted as a Proxmox directory storage (or LVM-thin) on tsys5
and used for local VM images.
---
## 8. Role Alignment Audit
Per the user's intended role taxonomy: tsys1/9 = infrastructure + k8s control
plane; tsys2/3/6/7 = k8s workers; tsys4/5 = storage. Cnodes on tsys1/9 is
**correct by design** (keeps heavy hosts free for workers).
### 8.1 VMs that need to move
| VMID | Name | Current host | Issue | Target |
|------|------|-------------|-------|--------|
| 509 | pfv-k8s-wnode-tsys5 | tsys5 (storage) | Worker on storage host | tsys7 or tsys2 (when online) |
| 905 | pfv-k8s-wnode-tsys9 | tsys9 (infra) | Can stay if small; user decides | tsys9 OK if small wnode |
### 8.2 Host capacity for k8s nodes
| Host | Role | Current k8s nodes | k8s RAM used | RAM total | Headroom |
|------|------|-------------------|-------------|-----------|----------|
| tsys1 | Infra+k8s ctrl | 2 cnodes | 8 GB | 32 GB | ~12 GB (after 11 infra VMs) |
| tsys3 | K8s worker | 1 wnode | 20 GB | 32 GB | ~12 GB |
| tsys6 | K8s worker | 3 cnodes + 1 wnode (stopped) | 12 GB | 128 GB | **~116 GB** |
| tsys7 | K8s worker | 1 wnode | 32 GB | 192 GB | **~160 GB** |
| tsys9 | Infra+k8s ctrl | 1 wnode | 4 GB | 24 GB | ~12 GB (after 4 infra VMs) |
| tsys2 | K8s worker | 0 (incoming) | 0 | 32 GB | ~32 GB |
**tsys6 and tsys7 are dramatically underutilized** -- 116 GB and 160 GB of
free RAM respectively. They should be the primary targets for heavy worker
nodes and ETL/HPC workloads.
### 8.3 tsys6 wnode-tsys6 is stopped
VM 100 (pfv-k8s-wnode-tsys6) is stopped on tsys6. Its disk is on D5 (tsys4
NFS). This wnode should be restarted (or recreated on local-lvm) to restore
cluster capacity.
---
## 9. Network Findings
### 9.1 tsys9 storage NIC is a USB dongle (new finding)
Validating tsys9 revealed that its storage network interface
(`enx9c69d36a5b6c`) is USB-attached (`parentbus usb`). This is the same
anti-pattern as tsys4. The onboard Intel NIC (`enp0s31f6`) is used for
management; storage uses the USB adapter.
**Impact:** Same as tsys4 -- achieves line rate but is susceptible to cable
wobble, ESD, and USB controller resets. For an infrastructure host with 5
VMs, this is a reliability risk.
**Mitigation:** tsys9 is an OptiPlex 7080 SFF -- it has PCIe slots. A
PCIe NIC would eliminate this risk (same recommendation as tsys4).
### 9.2 tsys4 and tsys5 still blocked (Friday hardware work)
| Host | Blocker | Staged fix |
|------|---------|-----------|
| tsys4 | USB cdc_ncm storage NIC | PCIe NIC install + RAM upgrade (16 to 64 GB) |
| tsys5 | bond0 broken (1 of 2 slaves) | Plug 2nd ethernet cable + apply layer3+4 hash |
### 9.3 LACP resolved on tsys6/tsys7
tsys6 to tsys7 storage path now measures **1.83 Gbps** (was 943 Mbps).
The switch LACP hash change took effect after renegotiation. The 56-106K
retransmits on this path are confirmed to be non-lossy multi-flow TCP-over-
LACP overhead. See `RESULTS.md` (not yet created) for the full analysis.
### 9.4 NFS nconnect=4 + noatime confirmed active
All hosts (including tsys9) show `nconnect=4,noatime` in their NFS mount
options. Each host maintains 4 TCP connections per NFS mount to each storage
server. This was the Tier 0 tuning item from the performance optimization
engagement and is confirmed working cluster-wide.
---
## 10. Recommendations
**No changes have been made. These are assessment-only recommendations.**
See `K8S.md` for the detailed kubernetes architecture deep-dive.
### 10.1 CRITICAL: Critical infrastructure VM placement (netinfra, UCS)
These are the most critical production VMs in the fleet. They must survive
any single-point failure (host, storage server, or disk).
**Design principle for -01/-02 HA pairs:**
- Different hypervisors (already satisfied: tsys1 vs tsys9)
- Different storage servers (currently FAILED: all on tsys4)
- Prefer SSD for latency-sensitive services
**Recommended placement:**
| VM | Host | Storage | Tier | Free space | Rationale |
|----|------|---------|------|-----------|-----------|
| **netinfra-01** (103) | tsys1 | **D5 (tsys4 HDD)** | NFS-HDD | 1.5 TB | DNS/DHCP/NTP = minimal I/O. Stays put. |
| **netinfra-02** (904) | tsys9 | **S3 (tsys5 HDD)** | NFS-HDD | 870 GB | Move from D2. Cross-server redundancy. Minimal I/O. |
| **ucs-01** (108) | tsys1 | **D2 (tsys4 HDD)** | NFS-HDD | 2.4 TB | Stays put. LDAP/AD does not need SSD. |
| **ucs-02** (902) | tsys9 | **S2 (tsys5 HDD)** | NFS-HDD | 870 GB | Move from D5. Cross-server redundancy. No SSD needed. |
**Failure survival matrix (all single-point failures):**
| Failure | netinfra-01 | netinfra-02 | ucs-01 | ucs-02 | Result |
|---------|-------------|-------------|--------|--------|--------|
| tsys4 dies | dies (D5) | **alive** (S3) | dies (D2) | **alive** (S2) | netinfra-02 + ucs-02 alive |
| tsys5 dies | **alive** (D5) | dies (S3) | **alive** (D2) | dies (S2) | netinfra-01 + ucs-01 alive |
| tsys1 dies | dies | **alive** | dies | **alive** | -02 pair survives |
| tsys9 dies | **alive** | dies | **alive** | dies | -01 pair survives |
| Any single disk | **all 4 on different disks/servers** | **all 4 alive** | | | |
**Why this works:** Every row has at least one netinfra and one UCS alive.
The network (DNS/DHCP) and directory (AD/LDAP) services never go fully dark.
**D3 SSD repurposed:** With UCS staying on HDD, the D3 SSD (moving to tsys5
Friday) is freed for latency-sensitive workloads that actually benefit from
SSD -- sectestbed k8s nodes, CI/CD artifact cache, or a container image
registry mirror. Not infrastructure VMs.
### 10.2 CRITICAL: Cnode (control plane) storage split
**Problem:** All 5 cnodes store disks on tsys4. D2 disk failure loses etcd
quorum (3 of 5 cnodes share D2).
**Target: cnodes weighted toward tsys1/tsys9 (lightweight hosts), freeing
tsys6/tsys7 for heavy workers. Storage splits across tsys4 and tsys5.**
| cnode | Current host | **Target host** | Current storage | **Target storage** | Rationale |
|-------|-------------|----------------|----------------|-------------------|-----------|
| cnode1 (107) | tsys1 | **tsys1** (stays) | D5 (tsys4) | **D5 (tsys4)** -- no change | Already correct |
| cnode3 (106) | tsys1 | **tsys1** (stays) | D2 (tsys4) | **S2 (tsys5)** -- **MOVE disk** | Split storage to tsys5 |
| cnode2 (603) | tsys6 | **tsys9** | D2 (tsys4) | **D2 (tsys4)** -- no disk change | Free tsys6 for heavy workers |
| cnode4 (601) | tsys6 | **tsys9** | D2 (tsys4) | **D5 (tsys4)** -- spread disk | Free tsys6; spread off D2 |
| cnode5 (602) | tsys6 | **tsys3** | D5 (tsys4) | **S3 (tsys5)** -- **MOVE disk** | Free tsys6; split storage to tsys5 |
**Result after changes:**
| Host | cnodes | Storage server |
|------|--------|---------------|
| tsys1 | cnode1 (D5), cnode3 (S2) | tsys4 + tsys5 |
| tsys9 | cnode2 (D2), cnode4 (D5) | tsys4 |
| tsys3 | cnode5 (S3) | tsys5 |
- 3 cnodes on tsys4 storage, 2 on tsys5. Either storage server can fail and
etcd keeps quorum (3 of 5 survive).
- D2 has 1 cnode (was 3). D5 has 2. S2 and S3 have 1 each. No single disk
holds more than 2 cnodes.
- Cnodes now on 3 hosts (tsys1, tsys9, tsys3). Any single host failure leaves
at least 3 cnodes alive.
- **tsys6 and tsys7 are fully freed** for heavy worker nodes.
Note: tsys1 RAM is tight (32 GB, 11 infra VMs). Adding 0 new cnodes (keeping
the 2 already there) is feasible with KSM. tsys9 (24 GB) has room for 2
cnodes (8 GB). tsys3 (32 GB) has room for 1 cnode (4 GB) alongside its wnode.
### 10.3 HIGH: Wnode distribution -- one per host, tiered storage
**Target: one wnode per hypervisor host, using local storage where possible
and NFS-HDD for bulk data.**
| wnode | Host | Boot disk (OS+containers) | Data disk (bulk/ETL) | Rationale |
|-------|------|--------------------------|---------------------|-----------|
| wnode-tsys1 | tsys1 | D5 (tsys4 NFS) | -- | Small wnode on infra host. Minimal capacity. |
| wnode-tsys3 | tsys3 | **local-lvm (349 GB NVMe)** | S3 (NFS) | Move from NFS to **NVMe** (Samsung PM961). Fastest boot disk after tsys5/2. |
| wnode-tsys6 | tsys6 | D2 (tsys4 NFS) | -- | **Stays on NFS.** local-lvm is USB 2.0 HDD (~30 MB/s) -- slower than NFS. |
| wnode-tsys7 | tsys7 | D5 (tsys4 NFS) | -- | **Stays on NFS.** local-lvm is USB 2.0 HDD (~30 MB/s) -- slower than NFS. |
| wnode-tsys9 | tsys9 | **local-lvm (136 GB SSD)** | S2 (NFS) | Move from NFS to local SSD. Fast boot, NFS for bulk. |
| wnode-tsys2 | tsys2 | **NVMe (Samsung 960 PRO 512GB)** | **SATA SSD (Samsung 850 EVO 1TB)** | **Best storage of any wnode.** No NFS needed -- 1.5 TB local SSD. |
| wnode-tsys5 | tsys5 | **new NVMe (local)** | local-nonprod (HDD) | **Fastest wnode in fleet.** HPC/ETL workloads land here. |
**Storage tiering strategy per wnode:**
Each wnode gets two disk tiers mapped to k8s StorageClasses:
1. **Boot + container runtime** (local-lvm or NVMe): OS, kubelet, container
images, ephemeral storage. This is where local SSD/NVMe shines -- container
image pulls and layer extraction are seek-bound and benefit enormously from
low-latency storage.
2. **Bulk data** (NFS-HDD via D2/D5/S2/S3): weather/GIS datasets, ETL staging
areas, large files that do not fit on local storage. Mounted as a second
disk in the VM and exposed to k8s as a StorageClass.
This maps to two k8s StorageClasses:
- `local-storage`: bound to the wnode's boot/local disk (fast, ephemeral)
- `nfs-bulk`: bound to NFS exports (slow, persistent, large capacity)
### 10.4 HIGH: Dedicate D3 SSD exclusively to k8s scratch
**Storage philosophy (user directive): NVMe/SSD is for k8s worker scratch
space and ultix-streaming (developer workstation running "cluster of 1"
pre-production jobs). Spinning rust hosts all other infrastructure VMs**
(UCS, netinfra, LibreNMS, SIEM, etc.).
SSD allocation after Friday:
- **D3 (tsys5 SAS, 445 GB free, 0% used)** -- dedicated to k8s scratch via
the `nfs-ssd` StorageClass (etcd, container cache, ephemeral volumes).
- **T5-SSD (tsys5 SAS, 140 GB free)** -- ultix-streaming (VM 5111) stays here
(developer workstation, runs single-node test jobs before k8s). Remaining
140 GB available for k8s.
**Deep-dive on exact k8s scratch allocation is deferred to the next session**
(K8S.md) once we know the k8s distribution, job scheduler, and workload mix.
### 10.5 MEDIUM: Restart wnode-tsys6
VM 100 (pfv-k8s-wnode-tsys6) is stopped on tsys6. Recreate on local-lvm
(1.7 TB free) instead of D5 NFS. This restores cluster capacity and moves
the boot disk to local storage simultaneously.
### 10.6 MEDIUM: tsys5 NVMe placement (Friday)
**Recommendation: local-only on tsys5, formatted as Proxmox LVM-thin or
directory storage.**
Use for:
- wnode-tsys5 boot disk (primary beneficiary -- HPC/ETL workloads)
- sectestbed VMs that need fast scratch space
- Not NFS-exported (avoid adding network overhead to the fastest tier)
### 10.7 LOW: Add PCIe NIC to tsys9
tsys9's storage NIC is a USB dongle. tsys9 is an OptiPlex 7080 with PCIe
slots. A $150 PCIe NIC eliminates the USB reliability risk.
### 10.8 LOW: Standardize PVE/kernel versions
tsys3 is on PVE kernel 7.0.14; others on 6.17.x. PVE-manager versions vary
(9.1.1 / 9.1.5 / 9.2.5). Standardize in a maintenance window.
---
## 11. Hardware End-of-Support Exposure
| Host | EOS date | Years past | Form factor |
|------|----------|-----------|-------------|
| pfv-tsys6 (R610) | 2013-05 | 13.2 | 1U server |
| pfv-tsys5 (T7500) | 2014-12 | 11.7 | Workstation |
| pfv-tsys4 (T1700) | 2018-03 | 8.4 | Workstation |
| pfv-tsys7 (R620) | 2019-03 | 7.4 | 1U server |
| pfv-tsys1 (9020) | 2019-07 | 7.0 | SFF desktop |
| pfv-tsys3 (7510) | 2020-07 | 6.0 | Laptop |
| pfv-tsys2 (5520) | TBD | -- | Laptop |
| **pfv-tsys9 (7080)** | **2024-02** | **2.4** | **SFF desktop (only supported)** |
**6 of 8 hosts are past vendor end-of-support.** Only tsys9 is still covered.
The two actual rack servers (R610, R620) are the most overdue for replacement.
This belongs in the next budget cycle.
---
## 12. Open Items
### 12.1 Immediate (do today via PDM)
1. **Migrate ucs-02** (VM 902) from D5 (tsys4) to S2 (tsys5) for cross-server
redundancy. UCS stays on HDD.
2. **Migrate netinfra-02** (VM 904) from D2 (tsys4) to S3 (tsys5).
3. **Migrate cnode3** (VM 106) from D2 (tsys4) to S3 (tsys5) -- etcd quorum.
4. **Migrate cnode4** (VM 601) from D2 (tsys4) to S2 (tsys5) -- etcd quorum.
5. **Start wnode-tsys1** (VM 102) if the cluster needs the capacity.
### 12.2 Friday maintenance window (user action)
1. **tsys4:** Install PCIe NIC (replace USB dongle), add RAM (16 to 64 GB),
reconfigure `/etc/network/interfaces`, reboot.
2. **tsys5:** Plug 2nd ethernet cable, verify bond0, apply layer3+4 hash,
install PCI NVMe, relocate D3 SSD from tsys4 USB to tsys5 SAS port,
format NVMe as local storage, reboot.
3. **tsys2:** Load Proxmox (replacing Windows 10).
4. **Final audit:** Re-run `deploy-check.sh` across all hosts including tsys2.
### 12.3 Post-Friday validation
1. Re-run iperf matrix: `./iperf-full-matrix.sh`
2. Validate tsys4 and tsys5: `./validate-fixes.sh pfv-tsys4 && ./validate-fixes.sh pfv-tsys5`
3. Run `scripts/check.sh` on tsys2 once Proxmox is loaded.
4. Update PROJECT.md with post-hardware numbers.
### 12.4 Future: Kubernetes deep-dive (see [K8S.md](K8S.md))
Next major workstream. Requirements captured:
- **vcluster + Rancher** for multi-tenant k8s management
- **OIDC auth** to Keycloak (on Cloudron, Reston VA production)
- **Workload isolation** via separate vclusters:
- RackRental (containerlab)
- Suborbital ITAR
- Suborbital non-ITAR
- Starting Line Productions customer workloads
- **Solar-aware scale-out:** PowerEdge 19xx + 2950 systems brought online
during peak solar production for burst capacity
- **Every host gets a wnode** (variable sizing: small 4 GB to large 32 GB)
- **SSD/NVMe reserved for k8s scratch** (plus ultix-streaming exception)
- **Spinning rust for all infrastructure VMs**
### 12.5 Data gaps
| Gap | How to close |
|-----|--------------|
| tsys5 SDR/parallel-port workload dependency | Confirm what uses the SDR |
| tsys2 post-Proxmox baseline | Run `check.sh` after Friday install |
| tsys5 NVMe size and model | Confirm after Friday installation |
| tsys3 thermal state (laptop in rack) | Check `sensors` on next maintenance |
| PowerEdge 19xx/2950 inventory | When solar scale-out is planned |
### 12.6 Scripts and tools available
| Script | Purpose |
|--------|---------|
| `scripts/check.sh` | Read-only data collector (run on hosts) |
| `scripts/apply-tunings.sh` | Apply all Tier 0 tunings (dry-run/apply/rollback) |
| `scripts/fix-bond-nfs.sh` | Fix NFS options + bond hash |
| `validate-fixes.sh` | Read-only validation of all applied changes |
| `iperf-full-matrix.sh` | Full iperf test suite (mgmt + storage) |
| `deploy-check.sh` | Deploy check.sh to all hosts via SSH (now includes tsys9) |
proxmox/docs/STORAGE-ARCHITECTURE.md
+8 -194
View File
@@ -1,196 +1,10 @@
# Storage Architecture # proxmox/docs/STORAGE-ARCHITECTURE.md
> **Complete storage reference for the PFVCluster.** Covers physical disks, > **Documentation moved to Discourse — the canonical source of truth.**
> NFS exports/mounts, Proxmox storage IDs, tier definitions, and per-spindle
> VM placement. Data gathered 2026-07-30 via live host probes.
> >
> Companion docs: [`NETWORK-TOPOLOGY.md`](NETWORK-TOPOLOGY.md), > **Storage reference: tiers, disk inventory, NFS exports, VM placement**
> [`HOST-REFERENCE.md`](HOST-REFERENCE.md), [`VM-INVENTORY.md`](VM-INVENTORY.md). >
> Findings/analysis: [`AUDIT-2026-07-30.md`](AUDIT-2026-07-30.md). > **Read it here:** https://community.turnsys.com/t/300
>
--- > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
> Do not update content here — edit the Discourse wiki topic instead.*
## 1. Storage tier definitions
| Tier | Definition | Typical speed | Reliability | Use case |
|------|-----------|---------------|-------------|----------|
| **Tier 1** | NVMe or SSD on internal SATA/SAS/PCIe | 200-3000 MB/s | High | OS drives, high-IOPS workloads, build scratch |
| **Tier 2** | HDD on internal SATA/SAS | 80-150 MB/s | Moderate | Production VM OS drives, general-purpose storage |
| **Tier 3** | HDD/SSD on USB adapter / "toaster" | 30-60 MB/s | Low (USB) | Bulk, backup, scratch only. Never for production OS drives. |
**Policy (from [`CAPACITY-GOALS.md`](CAPACITY-GOALS.md) §6):** Local disk
storage is a scratch tier, not a boot/OS tier. VM OS drives stay on NFS
(tsys4/tsys5) where redundancy is achieved by spreading across physical disks
and HA pairs. Local storage is for ephemeral data where loss on node failure
is acceptable.
---
## 2. Physical disk inventory
### tsys4 -- NFS storage server + PBS (7 disks)
| Device | Model | Size | RPM | Interface | Mount | NFS ID | Tier | SMART | Used |
|--------|-------|------|-----|-----------|-------|--------|------|-------|------|
| sda | Hitachi HDS723020BLA642 | 2.0 TB | 7200 | SATA | /mnt/albert | (not exported) | **Tier 2** | PASSED, 0 reallocated | 0% |
| sdb | HITACHI HUA723020ALA640 | 2.0 TB | 7200 | SATA | /mnt/tsys4/D5 | **D5** | Tier 2 | PASSED, 0 reallocated | 13% (220 GB) |
| sdc | WDC WD30EFRX (Red) | 3.0 TB | 5400 | SATA | /mnt/tsys4/D2 | **D2** | Tier 2 | PASSED, 0 reallocated | 7% (170 GB) |
| sdd | WDC WD10EZRX | 1.0 TB | -- | SATA | (pve boot/swap/lvm) | -- | Tier 2 | PASSED, 1 reallocated (sdf has 1) | OS disk |
| sde | ST500LM021 (Seagate) | 500 GB | 7200 | **USB** | /mnt/tsys4/D3 | **D3** | **Tier 3** | PASSED | 0% |
| sdf | WDC WD10EARS | 1.0 TB | -- | **USB** | /mnt/tsys4/D1 | **D1** | **Tier 3** | PASSED, 1 reallocated sector | 0% |
| sdg | WDC WD50NDZW (easystore) | 5.0 TB | 5400 | **USB** | /mnt/backup | (not exported) | **Tier 3** | PASSED | 0% |
**Changes from previous audit:**
- **D3 changed:** was SK hynix SC300 512GB SSD → now Seagate ST500LM021 500GB HDD (still USB). Demoted from unreliable-SSD to Tier 3 HDD.
- **/mnt/albert added:** Hitachi 2TB internal SATA. Not exported, not in Proxmox. Unused Tier 2.
- **/mnt/backup added:** WD 5TB USB easystore. Bulk backup only.
- **D7 removed:** Previously held DellOpenManageEnterprise. Now gone.
### tsys5 -- NFS storage server + sandboxes (7 disks)
| Device | Model | Size | RPM | Interface | Mount | NFS/Local ID | Tier | SMART | Used |
|--------|-------|------|-----|-----------|-------|-------------|------|-------|------|
| sda | ST1000VN002 (IronWolf) | 1.0 TB | 5900 | SATA | **(not mounted)** | was S3 | Tier 2 | PASSED | -- |
| sdb | SK hynix SC300B | 512 GB | SSD | SATA | **(not mounted)** | -- | **Tier 1** | PASSED | **NEW, not configured** |
| sdc | HITACHI HUS724020ALA640 | 2.0 TB | 7200 | SAS | (pve boot/swap/lvm) | -- | Tier 2 | PASSED | OS disk |
| sdd | Samsung SSD 860 PRO | 256 GB | SSD | SAS | /mnt/pfv-tsys5/ssd | `ssd` / `SSD` dir (local) | **Tier 1** | PASSED | **93% full!** |
| sde | ST1000VN002 (IronWolf) | 1.0 TB | 5900 | SAS | /mnt/pfv-tsys5/S1 | **S1** + `local-nonprod` | Tier 2 | PASSED | 11% (96 GB) |
| sdf | ST1000VN002 (IronWolf) | 1.0 TB | 5900 | SAS | /mnt/pfv-tsys5/S2 | **S2** | Tier 2 | PASSED | 4% (32 GB) |
| **nvme0n1** | **CT500P1SSD8 (Crucial)** | **500 GB** | **NVMe** | **PCIe** | **(not mounted)** | -- | **Tier 1** | PASSED, 0 integrity errors, 34K hrs | **NEW, not configured** |
**Changes from previous audit:**
- **NVMe added:** Crucial CT500P1 500GB. True NVMe -- highest-performance local storage in the fleet. Not mounted, not in fstab, not in storage.cfg.
- **SK hynix SSD relocated:** Moved from tsys4 USB enclosure to tsys5 internal SATA. Not mounted or configured.
- **S3 unmounted:** sda (was S3) is present but fstab entry is commented out. Stale export remains in /etc/exports.
- **S4 gone:** Old Toshiba 458GB no longer present. fstab entry commented. storage.cfg has broken `dir: S4` entry.
- **S1/S2 drives changed:** Both are now ST1000VN002 IronWolf 1TB (5900 rpm).
- **SSD nearly full:** Samsung 860 PRO at 93% (206/234 GB) -- needs attention.
- **Boot disk changed:** HITACHI HUS724020ALA640 2TB (was Hitachi 2TB in old audit, now confirmed model).
---
## 3. NFS export → Proxmox storage ID map
```mermaid
graph LR
subgraph "tsys4 -- NFS Server"
D2["D2: /mnt/tsys4/D2<br>WDC Red 3TB<br>Tier 2 | 7% used"]
D5["D5: /mnt/tsys4/D5<br>Hitachi 2TB<br>Tier 2 | 13% used"]
D1["D1: /mnt/tsys4/D1<br>WD 1TB USB<br>Tier 3 | 0% used"]
D3["D3: /mnt/tsys4/D3<br>Seagate 500GB USB<br>Tier 3 | 0% used"]
end
subgraph "tsys5 -- NFS Server"
S1["S1: /mnt/pfv-tsys5/S1<br>IronWolf 1TB<br>Tier 2 | 11% used"]
S2["S2: /mnt/pfv-tsys5/S2<br>IronWolf 1TB<br>Tier 2 | 4% used"]
S3stale["S3: (stale export)<br>disk not mounted"]
end
subgraph "All hosts -- NFS Clients"
MNT["/mnt/pve/D1 D2 D3 D5<br>/mnt/pve/S1 S2 S3 S4<br>/mnt/pve/T5-SSD"]
end
D2 -->|NFS v4.2| MNT
D5 -->|NFS v4.2| MNT
D1 -->|NFS v4.2| MNT
D3 -->|NFS v4.2| MNT
S1 -->|NFS v4.2| MNT
S2 -->|NFS v4.2| MNT
S3stale -.->|broken| MNT
```
### NFS export details
| Server | Export path | NFS ID | Protocol | Options (client-side) |
|--------|-------------|--------|----------|----------------------|
| tsys4 | /mnt/tsys4/D1 | D1 | NFSv4.2 | nconnect=4,noatime,rsize=1048576,wsize=1048576,hard |
| tsys4 | /mnt/tsys4/D2 | D2 | NFSv4.2 | nconnect=4,noatime,rsize=1048576,wsize=1048576,hard |
| tsys4 | /mnt/tsys4/D3 | D3 | NFSv4.2 | nconnect=4,noatime,rsize=1048576,wsize=1048576,hard |
| tsys4 | /mnt/tsys4/D5 | D5 | NFSv4.2 | nconnect=4,noatime,rsize=1048576,wsize=1048576,hard |
| tsys5 | /mnt/pfv-tsys5/S1 | S1 | NFSv4.2 | nconnect=4,noatime,rsize=1048576,wsize=1048576,hard |
| tsys5 | /mnt/pfv-tsys5/S2 | S2 | NFSv4.2 | nconnect=4,noatime,rsize=1048576,wsize=1048576,hard |
| tsys5 | /mnt/pfv-tsys5/S3 | S3 | NFSv4.2 | **stale** (disk not mounted on server) |
| tsys5 | /mnt/pfv-tsys5/ssd | T5-SSD | NFSv4.2 | nconnect=4,noatime,rsize=1048576,wsize=1048576,hard |
| tsys5 | /mnt/pfv-tsys5/S4 | S4 | -- | **broken** (disk gone, storage.cfg entry stale) |
> **Note:** tsys5 is the only host where NFS client mounts (D2/D3/D5 from
> tsys4) are **missing nconnect=4**. All other client hosts have nconnect on
> all mounts.
---
## 4. Per-spindle VM placement (running VMs only)
> Shows every running VM's primary disk and the physical spindle it lives on.
> This is the IOPS distribution map -- the key to storage balancing.
```mermaid
graph TB
subgraph "tsys4 spindles"
D2["D2 -- WDC Red 3TB<br>*** 13 VMs -- WORST HOTSPOT"]
D5["D5 -- Hitachi 2TB<br>4 VMs"]
D1["D1 -- WD 1TB USB<br>0 VMs (empty)"]
D3["D3 -- Seagate 500GB USB<br>0 VMs (empty)"]
ALB["/mnt/albert -- Hitachi 2TB<br>0 VMs (not in Proxmox)"]
end
subgraph "tsys5 spindles"
S1["S1 -- IronWolf 1TB<br>1 NFS VM + 12 local stopped"]
S2["S2 -- IronWolf 1TB<br>5 VMs"]
SSD["SSD -- Samsung 860 PRO<br>1 VM (93% full!)"]
NVME["NVMe -- Crucial CT500P1<br>NOT CONFIGURED"]
HYNIX["SK hynix SSD 512GB<br>NOT CONFIGURED"]
end
D2 --- D2vms["100 101 104 105 108<br>114 117 509 600 702<br>704 901 904"]
D5 --- D5vms["106 313 600(d0) 903"]
S1 --- S1vms["702 hfnoc-uisp"]
S2 --- S2vms["103 703 705 902 905"]
SSD --- SSDvms["5111 ultix-streaming"]
```
### Detailed per-spindle load
| Spindle | Server | NFS ID | Tier | Running VMs | VMIDs | Notes |
|---------|--------|--------|------|-------------|-------|-------|
| **D2** (WDC Red 3TB) | tsys4 | D2 | Tier 2 | **13** | 100,101,104,105,108,114,117,509,600,702,704,901,904 | **Worst IOPS hotspot** |
| D5 (Hitachi 2TB) | tsys4 | D5 | Tier 2 | 4 | 106,313,600(disk0),903 | Moderate |
| S1 (IronWolf 1TB) | tsys5 | S1 + local-nonprod | Tier 2 | 1 (NFS) + 0 (local, 12 stopped) | 702 | Low; 12 stopped sandboxes on local-nonprod |
| S2 (IronWolf 1TB) | tsys5 | S2 | Tier 2 | 5 | 103,703,705,902,905 | Moderate |
| ssd (Samsung 860 PRO) | tsys5 | SSD dir | Tier 1 | 1 | 5111 | **93% full** |
| D1 (WD 1TB USB) | tsys4 | D1 | Tier 3 | 0 | -- | Empty |
| D3 (Seagate 500GB USB) | tsys4 | D3 | Tier 3 | 0 | -- | Empty |
| /mnt/albert (Hitachi 2TB) | tsys4 | (none) | Tier 2 | 0 | -- | Not in Proxmox |
| NVMe (CT500P1 500GB) | tsys5 | (none) | Tier 1 | 0 | -- | **Not configured** |
| SK hynix SSD (512GB) | tsys5 | (none) | Tier 1 | 0 | -- | **Not configured** |
### Local-only VM disks (not on NFS)
| Host | Storage ID | Disk | VMs | Notes |
|------|-----------|------|-----|-------|
| tsys4 | local-lvm | sdd (1TB internal) | 400 (PBS) | Proxmox boot/OS disk |
| tsys5 | local-lvm | sdc (2TB internal) | 5102,5103,5104,5112 | Mixed: stopped sandboxes + ultix-offstage |
| tsys5 | local-nonprod (=S1) | sde (IronWolf 1TB) | 5101,5105,5106-5109,515,53100-53103,6000,51010-51014 | All STOPPED sandboxes. Same physical disk as S1 NFS. |
| tsys5 | SSD dir | sdd (Samsung 860 PRO) | 5111 | ultix-streaming. 93% full. |
---
## 5. Storage capacity summary
| Spindle | Size | Used | Available | % Used |
|---------|------|------|-----------|--------|
| D2 (WDC Red 3TB) | 2.7 TB | 170 GB | 2.4 TB | 7% |
| D5 (Hitachi 2TB) | 1.8 TB | 220 GB | 1.5 TB | 13% |
| D1 (WD 1TB USB) | 916 GB | 2 MB | 870 GB | 0% |
| D3 (Seagate 500GB USB) | 458 GB | 2 MB | 435 GB | 0% |
| /mnt/albert (Hitachi 2TB) | 1.8 TB | 2 MB | 1.7 TB | 0% |
| /mnt/backup (WD 5TB USB) | 4.6 TB | 2 MB | 4.3 TB | 0% |
| S1 (IronWolf 1TB) | 916 GB | 96 GB | 774 GB | 11% |
| S2 (IronWolf 1TB) | 916 GB | 32 GB | 838 GB | 4% |
| SSD (Samsung 860 PRO) | 234 GB | 206 GB | **16 GB** | **93%** |
| NVMe (CT500P1) | 466 GB | -- | -- | Not configured |
| SK hynix SSD | 477 GB | -- | -- | Not configured |
**Total Tier 2 available (NFS production):** ~5.5 TB unused across D2/D5/S1/S2
**Total Tier 3 available (USB):** ~6 TB unused across D1/D3/backup
**Total Tier 1 available (unconfigured):** ~940 GB across NVMe + SK hynix SSD
proxmox/docs/TODO.md
+9 -241
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@@ -1,242 +1,10 @@
# TODO.md — Pending User Actions # proxmox/docs/TODO.md
**Date:** 2026-07-27 > **Documentation moved to Discourse — the canonical source of truth.**
**Items needing user input or physical action.** >
> **Pending hardware work — folded into Operations Status**
--- >
> **Read it here:** https://community.turnsys.com/t/298
## 1. tsys2 Windows hardware inventory (run on the Windows host) >
> *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
pfv-tsys2 is currently Windows 10. Before rebuilding it as Proxmox, gather > Do not update content here — edit the Discourse wiki topic instead.*
hardware data so the architecture plan can account for it.
### Option A: PowerShell (recommended — single command, copy-paste output)
Open **PowerShell as Administrator** and run:
```powershell
# Full hardware inventory in one shot
Write-Output "=== COMPUTER ==="
Get-CimInstance Win32_ComputerSystem | Select-Object Manufacturer, Model, SystemType, TotalPhysicalMemory | Format-List
Write-Output "`n=== CPU ==="
Get-CimInstance Win32_Processor | Select-Object Name, NumberOfCores, NumberOfLogicalProcessors, MaxClockSpeed | Format-List
Write-Output "`n=== MEMORY STICKS ==="
Get-CimInstance Win32_PhysicalMemory | Select-Object Manufacturer, PartNumber, Capacity, Speed, ConfiguredClockSpeed, DeviceLocator, FormFactor | Format-Table -AutoSize
Write-Output "`n=== DISKS ==="
Get-PhysicalDisk | Select-Object FriendlyName, MediaType, BusType, Size, SpindleSpeed | Format-Table -AutoSize
Write-Output "`n=== DISK PARTITIONS ==="
Get-Disk | Select-Object Number, FriendlyName, Size, PartitionStyle, OperationalStatus | Format-Table -AutoSize
Write-Output "`n=== NETWORK ADAPTERS ==="
Get-NetAdapter | Select-Object Name, InterfaceDescription, Status, LinkSpeed, MacAddress | Format-Table -AutoSize
Write-Output "`n=== GPU(s) ==="
Get-CimInstance Win32_VideoController | Select-Object Name, AdapterRAM, DriverVersion, VideoProcessor | Format-List
Write-Output "`n=== PCIe SLOTS ==="
Get-CimInstance Win32_SystemSlot | Select-Object SlotDesignation, CurrentUsage, Status | Format-Table -AutoSize
Write-Output "`n=== USB DEVICES (storage + network only) ==="
Get-PnpDevice -PresentOnly | Where-Object { $_.Class -in @('DiskDrive','Net','USB') } | Select-Object Class, FriendlyName, Status | Format-Table -AutoSize
```
Copy the full output into a file (e.g., `tsys2-hardware.txt`) or paste it
directly into the chat.
### Option B: Command Prompt (cmd.exe) fallbacks
If PowerShell is unavailable for some reason, these cmd commands give a
subset:
```cmd
:: Computer model and serial
wmic computersystem get manufacturer,model
wmic bios get serialnumber
:: CPU
wmic cpu get name,numberofcores,numberoflogicalprocessors,maxclockspeed
:: RAM (total)
wmic computersystem get totalphysicalmemory
:: RAM sticks (per-slot detail)
wmic memorychip get manufacturer,capacity,speed,partnumber,devicelocator
:: Disks
wmic diskdrive get model,size,interfacetype,mediatype
:: Network adapters
wmic nic where netenabled=true get name,speed,macaddress
:: GPU
wmic path win32_videocontroller get name,adapterram,driverversion
```
### What I'm looking for
- **Disk inventory**: Are there any SSDs/NVMe available locally? (Determines
whether wnode-tsys2 can use local storage like the other wnodes.)
- **Network adapters**: How many onboard NICs? Model? (Determines whether
tsys2 needs a USB dongle for storage network like tsys4/9, or has a real
onboard NIC available.)
- **RAM layout**: Is all 32 GB in 1 stick, 2 sticks, or 4 sticks? (Affects
memory bandwidth for HPC workloads — dual-channel matters.)
- **GPU detail**: Confirm the Quadro M1200 model and VRAM for passthrough
planning.
- **PCIe slots**: Is there a free PCIe slot for adding a NIC or HBA?
- **Service tag confirmation**: `GH1XZG2` (already on file from spreadsheet).
### STATUS: Collected 2026-07-27
**Disk inventory — RESOLVED:**
- Disk 0: Samsung SSD 960 PRO **512 GB NVMe** (best local storage in fleet)
- Disk 1: Samsung SSD 850 EVO **1 TB SATA SSD**
- Both SSDs, no spinning rust. 1.5 TB total local SSD.
**Network adapters — RESOLVED (concerning):**
- StorageNetwork: **ASIX USB to Gigabit Ethernet** (dongle, D4-81-D7-3E-0D-5E)
- Ethernet: **Realtek USB GbE Family Controller** (also USB, 18-FD-CB-00-D2-CA)
- Wi-Fi: Intel 8265 (disconnected)
- **Both wired NICs are USB-attached.** Same anti-pattern as tsys4/9.
Unavoidable on this laptop form factor — no onboard PCIe NIC available.
**GPU — RESOLVED:**
- Intel HD Graphics 630 (integrated, 1 GB)
- NVIDIA Quadro M1200 (4 GB, confirmed for passthrough)
**PCIe slots — RESOLVED:**
- Slots 3/6/7/8 report "Available" but these are laptop M.2/WWAN slots, not
user-accessible full PCIe. **Cannot add a PCIe NIC.** NVMe slot occupied
by 960 PRO.
**RAM — PARTIAL:**
- Total 32 GB confirmed (34,097,573,888 bytes).
- Per-stick detail failed to run (PowerShell line-break split
`Format-T` + `able`). Re-run the command below if bandwidth planning
needs stick-level detail:
```powershell
Get-CimInstance Win32_PhysicalMemory | Select-Object Manufacturer, PartNumber, Capacity, Speed, ConfiguredClockSpeed, DeviceLocator, FormFactor | Format-Table -AutoSize
```
**Service tag — CONFIRMED:** `GH1XZG2` (Precision 5520).
---
## 2. Friday maintenance window (physical hardware)
### tsys4 — install PCIe NIC + add RAM
1. Power down tsys4 (graceful shutdown via Proxmox UI or `shutdown -h now`).
2. Install the **PCIe NIC** (Intel i350-T2 or similar 1 GbE dual-port).
3. Add **RAM**: 16 GB → 64 GB DDR3 ECC.
4. Power on, then update `/etc/network/interfaces` to replace
`enx8cae4ccda926` (USB dongle) with the new PCIe NIC device name.
5. Reboot to activate new NIC and NFS nconnect.
6. Run `validate-fixes.sh pfv-tsys4` to confirm.
### tsys5 — plug storage cable + install NVMe + relocate D3 SSD
1. Plug the **second ethernet cable** into tsys5's dedicated storage NIC.
2. Verify bond0 recovery: `cat /proc/net/bonding/bond0` — look for
"Number of ports: 2" and a real partner MAC (not all zeros).
3. Apply bond hash fix (same as tsys6/7):
```bash
echo "layer3+4" > /sys/class/net/bond0/bonding/xmit_hash_policy
```
4. **Relocate D3 SSD** from tsys4 USB to tsys5 SAS port:
- Power down tsys4
- Remove the SK hynix SC300 SSD from its USB enclosure on tsys4
- Install it on a free SAS port on tsys5 (5 ports free on LSI SAS1068E)
- On tsys5: mount as `/mnt/pfv-tsys5/D3`, add to `/etc/exports`
- Update `/etc/pve/storage.cfg` cluster-wide: repoint D3 `server` from
`pfv-tsys4-nfs-stor` to `pfv-tsys5-nfs-stor`, update `export` path
- Copy any existing D3 data from tsys4 first (currently ~2 MB, essentially
empty, so minimal migration)
5. Install the **PCI NVMe drive** (uses a PCI slot, not a SATA/SAS port).
6. Format NVMe as local directory storage (see TODO section 3 below).
7. Reboot tsys5 to activate NFS nconnect.
8. Run `validate-fixes.sh pfv-tsys5` to confirm.
---
## 3. tsys5 NVMe format/mount decision (after Friday install)
**Recommendation: local-only, not NFS-exported.** Format as Proxmox directory
storage so it shows up as a VM image target in the Proxmox UI.
After the NVMe is physically installed and visible in Proxmox:
1. Identify the device: `lsblk` or `ls /dev/nvme*`
2. Format and add to Proxmox:
```bash
# Option A: LVM-thin (thin provisioning, snapshots)
pvcreate /dev/nvme0n1
vgcreate nvme-pool /dev/nvme0n1
lvcreate -l 100%FREE -T nvme-pool/data
# Then in Proxmox UI: Datacenter > Storage > Add > LVM-Thin
# ID: nvme-local
# Volume Group: nvme-pool
# Thin Pool: data
# Content: Disk image, Container template
# Option B: Directory (simpler, no thin provisioning)
mkfs.ext4 /dev/nvme0n1
mkdir -p /mnt/nvme
mount /dev/nvme0n1 /mnt/nvme
# Add to /etc/fstab for persistence
# Then in Proxmox UI: Datacenter > Storage > Add > Directory
# ID: nvme-local
# Directory: /mnt/nvme
# Content: Disk image, Container template
```
3. Use for wnode-tsys5 boot disk (highest impact) and sectestbed VM scratch.
---
## 4. Post-hardware validation (run after Friday work)
1. Re-run iperf matrix: `./iperf-full-matrix.sh`
2. Validate tsys4 and tsys5: `./validate-fixes.sh pfv-tsys4 && ./validate-fixes.sh pfv-tsys5`
3. Update PROJECT.md with post-hardware iperf numbers.
---
## 5. UCS storage migration to spinning disk (do today)
UCS (Univention Corporate Server / open-source AD) does not need SSD. Both
UCS VMs should stay on spinning disk (HDD) and be split across storage
servers for redundancy.
| VM | Current | Target | Action |
|----|---------|--------|--------|
| ucs-01 (108) | D2 (tsys4 HDD) | **D2 (tsys4 HDD) -- no change** | Already correct |
| ucs-02 (902) | D5 (tsys4 HDD) | **S2 (tsys5 HDD)** | Move for cross-server redundancy |
**To migrate ucs-02 to S2 (use PDM/Proxmox UI):**
1. In Proxmox Datacenter or the node UI, select VM 902 on tsys9
2. Use "Migrate" or "Storage Migrate" to move the disk from D5 to S2
(both are NFS exports visible to tsys9, so this is a storage-only migration)
3. Verify VM 902 boots and LDAP/AD services are healthy after migration
Note: both VMs are currently on tsys4 HDD, which is fine for UCS. Only
ucs-02 needs to move -- it should be on a different storage server than
ucs-01 so a tsys4 failure doesn't take down both halves of the AD pair.
---
## 6. Open questions for next session
- Are the hosts a Proxmox cluster (`pvecm status`) or standalone installs?
Determines whether live migration is available.
- What k8s distribution is in use? (k3s, kubeadm, RKE2?)
- Container runtime? (containerd, cri-o?)
- Is there a local container image registry mirror?
- What specific ETL tools? (GDAL, PostGIS, xarray, Dask?)
- HPC job scheduler? (plain k8s Jobs, Argo Workflows, Volcano?)
- What uses tsys5's SDR + parallel port before planning tsys5 role changes?
- tsys3 thermal state (laptop in rack for years) — check `sensors`.
proxmox/docs/VM-INVENTORY.md
+8 -223
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@@ -1,225 +1,10 @@
# VM Inventory # proxmox/docs/VM-INVENTORY.md
> **Every VM in the cluster, with host placement, disk location, CPU/RAM > **Documentation moved to Discourse — the canonical source of truth.**
> allocation, and optimization status.** Data gathered 2026-07-30.
> >
> Companion docs: [`NETWORK-TOPOLOGY.md`](NETWORK-TOPOLOGY.md), > **Complete VM catalog with disk/CPU/RAM/config**
> [`STORAGE-ARCHITECTURE.md`](STORAGE-ARCHITECTURE.md), >
> [`HOST-REFERENCE.md`](HOST-REFERENCE.md). > **Read it here:** https://community.turnsys.com/t/304
>
--- > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
> Do not update content here — edit the Discourse wiki topic instead.*
## 1. VM placement diagram
```mermaid
graph TB
subgraph tsys1["tsys1 -- Infra (57% RAM)"]
VM100["100 pfv-bms<br>2c/4G D2"]
VM101["101 tsys-ca<br>2c/2G D2"]
VM103["103 netinfra-01<br>2c/4G S2"]
VM104["104 librenms<br>2c/2G D2"]
VM105["105 proxmox-dc<br>2c/2G D2"]
VM106["106 cnode3<br>4c/4G D5"]
VM108["108 ucs-01<br>2c/8G D2"]
VM114["114 kali-tsys<br>2c/2G D2"]
VM117["117 workbench<br>2c/4G D2"]
end
subgraph tsys3["tsys3 -- Compute (10% RAM)"]
VM313["313 wnode-tsys3<br>8c/28G D5"]
end
subgraph tsys4["tsys4 -- Storage (15% RAM)"]
VM400["400 PBS<br>2c/2G local-lvm"]
end
subgraph tsys5["tsys5 -- Storage+Sandbox (15% RAM)"]
VM509["509 wnode-tsys5<br>2c/32G D2"]
VM515["515 hfnoc-uisp-preprod<br>2c/2G local-nonprod"]
VM5111["5111 ultix-streaming<br>4c/9G SSD"]
VM5112["5112 ultix-offstage<br>4c/6G local-lvm"]
end
subgraph tsys6["tsys6 -- RackRental (12% RAM)"]
VM100b["100 wnode-tsys6<br>2c/64G S4"]
VM600["600 tsys-awx<br>2c/12G D5"]
end
subgraph tsys7["tsys7 -- RackRental (7% RAM)"]
VM701["701 wnode-tsys7<br>4c/32G S3"]
VM702["702 hfnoc-uisp<br>2c/8G S1"]
VM703["703 rr-middleware<br>2c/2G S2"]
VM704["704 TCTC<br>4c/6G D2"]
VM705["705 cnode2<br>4c/4G S2"]
end
subgraph tsys9["tsys9 -- Infra+Compute (69% RAM)"]
VM901["901 tsys-siem<br>2c/8G D2"]
VM902["902 ucs-02<br>2c/8G S2"]
VM903["903 kali-rd<br>2c/2G D5"]
VM904["904 netinfra-02<br>2c/4G D2"]
VM905["905 wnode-tsys9<br>4c/4G S2"]
VM906["906 cnode1<br>2c/4G S3"]
end
```
---
## 2. Complete running VM inventory (28 running VMs)
### Infrastructure (netinfra, UCS, CA, LibreNMS, PDM)
| VMID | Name | Host | vCPU | CPU type | RAM | Disk store | Spindle | Disk type | Cache | iothread | qga | Notes |
|------|------|------|------|----------|-----|-----------|---------|-----------|-------|----------|-----|-------|
| 100 | pfv-bms (HomeAssistant) | tsys1 | 2 | host | 4G | D2 (raw) | D2 | raw | -- | -- | ✓ | discard=on, ssd=1. HA for power/temp monitoring. |
| 101 | tsys-ca | tsys1 | 2 | v2-AES | 2G | D2 (virtio) | D2 | qcow2 | -- | ✓ | -- | no nested-virt flag. Certificate Authority. |
| 103 | pfv-netinfra-01 | tsys1 | 2 | v2-AES | 4G | S2 | S2 | qcow2 | -- | ✓ | -- | DNS primary (Technitium + Pi-hole). |
| 104 | tsys-librenms | tsys1 | 2 | host | 2G | D2 | D2 | qcow2 | -- | ✓ | ✓ | SNMP monitoring for switches. |
| 105 | tsys-proxmox-datacenter | tsys1 | 2 | host | 2G | D2 | D2 | qcow2 | -- | ✓ | ✓ | PDM (Proxmox Datacenter Manager). |
| 108 | tsys-ucs-01 | tsys1 | 2 | host | 8G | D2 | D2 | qcow2 | **writethrough** | ✓ | ✓ | Univention Corporate Server half 1. |
| 902 | tsys-ucs-02 | tsys9 | 2 | host | 8G | S2 | S2 | qcow2 | -- | ✓ | ✓ | UCS half 2 (HA pair with 108). |
| 904 | pfv-netinfra-02 | tsys9 | 2 | v2-AES | 4G | D2 | D2 | qcow2 | -- | ✓ | -- | DNS secondary. HA pair with 103. |
### k8s control plane (cnode1/2/3)
| VMID | Name | Host | vCPU | CPU type | RAM | Disk store | Spindle | Disk type | Cache | iothread | qga | Notes |
|------|------|------|------|----------|-----|-----------|---------|-----------|-------|----------|-----|-------|
| 106 | pfv-k8s-cnode3 | tsys1 | 4 | host | 4G | D5 | D5 | qcow2 | **writethrough** | ✓ | ✓ | etcd member. |
| 705 | pfv-k8s-cnode2 | tsys7 | 4 | host | 4G | S2 | S2 | qcow2 | **writethrough** | ✓ | ✓ | etcd member. |
| 906 | pfv-k8s-cnode1 | tsys9 | 2 | host | 4G | S3 | S3 | qcow2 | -- | ✓ | -- | etcd member. |
### k8s workers (wnodes)
| VMID | Name | Host | vCPU | CPU type | RAM | Disk store | Spindle | Disk type | Cache | iothread | qga | Notes |
|------|------|------|------|----------|-----|-----------|---------|-----------|-------|----------|-----|-------|
| 313 | pfv-k8s-wnode-tsys3 | tsys3 | 8 | host | 28G | D5 | D5 | qcow2 | **writethrough** | ✓ | ✓ | Compute worker. |
| 509 | pfv-k8s-wnode-tsys5 | tsys5 | 2 | host | 32G | D2 (virtio) | D2 | qcow2 | -- | ✓ | -- | Undersized vCPU (2). |
| 100 | pfv-k8s-wnode-tsys6 | tsys6 | 2 | host | 64G | S4 | S4 | qcow2 | -- | ✓ | -- | Undersized vCPU (2), high RAM. |
| 701 | pfv-k8s-wnode-tsys7 | tsys7 | 4 | host | 32G | S3 (virtio) | S3 | qcow2 | -- | ✓ | -- | RackRental worker. |
| 905 | pfv-k8s-wnode-tsys9 | tsys9 | 4 | v2-AES | 4G | S2 | S2 | qcow2 | -- | ✓ | ✓ | Target: grow to 6c/8G. |
### Application VMs
| VMID | Name | Host | vCPU | CPU type | RAM | Disk store | Spindle | Disk type | Cache | iothread | qga | Notes |
|------|------|------|------|----------|-----|-----------|---------|-----------|-------|----------|-----|-------|
| 114 | kali-tsys | tsys1 | 2 | host | 2G | D2 | D2 | qcow2 | **writethrough** | ✓ | ✓ | Kali Linux pentest. |
| 117 | tsys-secure-workbench | tsys1 | 2 | host | 4G | D2 | D2 | qcow2 | **writethrough** | ✓ | ✓ | Secure workbench. |
| 400 | pfv-proxmox-backup-server | tsys4 | 2 | -- | 2G | local-lvm | (local) | raw | -- | -- | -- | PBS -- all VM backups. |
| 515 | hfnoc-uisp-preprod | tsys5 | 2 | host | 2G | local-nonprod | S1 | qcow2 | -- | ✓ | -- | Preprod. Locked to tsys5. |
| 5111 | ultix-streaming | tsys5 | 4 | -- | 9G | SSD dir | SSD | qcow2 | -- | -- | -- | 288GB on Samsung 860 PRO (**93% full**). |
| 5112 | ultix-offstage | tsys5 | 4 | -- | 6G | local-lvm | (local) | raw | -- | -- | -- | 288GB. Locked to tsys5. |
| 600 | tsys-awx | tsys6 | 2 | host | 12G | D5 | D5 | qcow2 | **writethrough** | ✓ | ✓ | Ansible AWX. |
| 702 | hfnoc-uisp | tsys7 | 2 | host | 8G | S1 | S1 | qcow2 | -- | ✓ | ✓ | 100GB disk. UISP network monitoring. |
| 703 | rr-middleware | tsys7 | 2 | host | 2G | S2 | S2 | qcow2 | **writethrough** | ✓ | ✓ | RackRental middleware. |
| 704 | TCTC | tsys7 | 4 | host | 6G | D2 (virtio) | D2 | qcow2 | -- | ✓ | -- | |
| 901 | tsys-siem | tsys9 | 2 | host | 8G | D2 | D2 | qcow2 | **writethrough** | ✓ | ✓ | 132GB disk. SIEM. |
| 903 | kali-rd | tsys9 | 2 | host | 2G | D5 | D5 | qcow2 | **writethrough** | ✓ | ✓ | Kali R&D. |
---
## 3. Optimization findings
### 3.1 Cache mode audit
`cache=writethrough` forces synchronous writes to the NFS server on every write
operation. For NFS-backed qcow2, this is unnecessarily slow -- `writeback` or
`none` is recommended (qcow2 already provides journaling integrity).
| Cache mode | Count | VMs |
|-----------|-------|-----|
| **writethrough** (slow) | **10** | 106, 108, 114, 117, 313, 600, 703, 705, 901, 903 |
| none/default (optimal) | 18 | all others |
**Fix:** Change `cache=writethrough` → `cache=writeback` or remove (defaults to
writeback for qcow2). Requires VM stop/start.
### 3.2 CPU type audit
`cpu: host` passes the host's full CPU instruction set to the VM (best
performance). `x86-64-v2-AES` is a conservative baseline (safe for migration
but lacks some host instructions).
| CPU type | Count | VMs |
|----------|-------|-----|
| **host** | 21 | most production VMs |
| **x86-64-v2-AES** | 5 | 101, 103, 509, 904, 905 |
| not set | 2 | 400, 5111, 5112 |
**Note:** Mixed CPU types prevent live migration between hosts with different
CPU generations. K8s cnodes/wnodes should ideally match within each tier.
### 3.3 Disk controller audit
| Controller | Count | Notes |
|-----------|-------|-------|
| **scsi0** (virtio-scsi) | 22 | Optimal for Proxmox |
| **virtio0** | 4 | 101, 509, 701, 704 -- also good |
| raw (no virtio) | 2 | 100 (pfv-bms), 500 (stopped) |
All running VMs use virtio-based disk controllers. No IDE/SATA legacy disks.
### 3.4 Network audit
All running VMs use **virtio-net**. Firewall enabled on most (`firewall=1`).
No legacy e1000/rtl8139 adapters.
### 3.5 Guest agent (qga) audit
| Status | Count | VMs without qga |
|--------|-------|-----------------|
| **enabled** | 20 | -- |
| **not set** | 8 | 101, 103, 509, 100(tsys6), 701, 704, 904, 906 |
**Fix:** Enable `qm set <vmid> --agent 1` on the 8 VMs missing it. No VM
stop/start required (takes effect on next guest reboot, but the setting itself
is immediate).
### 3.6 k8s wnode sizing
| VMID | Name | vCPU | RAM | Tier target | Issue |
|------|------|------|-----|-------------|-------|
| 509 | wnode-tsys5 | 2 | 32G | compute | **Undersized vCPU** (2 for a compute worker) |
| 100 | wnode-tsys6 | 2 | 64G | rackrental | **Undersized vCPU** (2 for 64G RAM) |
| 701 | wnode-tsys7 | 4 | 32G | rackrental | OK for idle labs |
| 905 | wnode-tsys9 | 4 | 4G | compute | **Target: grow to 6c/8G** after siem migrates off |
| 313 | wnode-tsys3 | 8 | 28G | compute | OK (best compute worker) |
---
## 4. Stopped VMs (not running, for reference)
### Sectestbed / sandboxes (all on tsys5, all stopped)
| VMID | Name | RAM | Disk | Notes |
|------|------|-----|------|-------|
| 5100 | sectestbed-template | 4G | local-lvm | Base template |
| 5101 | sectestbed-siem | 10G | local-nonprod (S1) | 132G disk |
| 5102 | sectestbed-proxmox-pve | 4G | local-lvm | |
| 5103 | sectestbed-proxmox-datacenter | 4G | local-lvm | |
| 5104 | sectestbed-proxmox-pbs | 4G | local-lvm | |
| 5105 | sectestbed-awx | 4G | local-nonprod (S1) | 288G disk |
| 5106 | sectestbed-k8s-cnode | 4G | local-nonprod (S1) | |
| 5107 | sectestbed-k8s-wnode | 4G | local-nonprod (S1) | |
| 5108 | sectestbed-librenms | 4G | local-nonprod (S1) | |
| 5109 | sectestbed-netinfra | 4G | local-nonprod (S1) | |
| 51010 | sectestbed-tctc | 4G | local-nonprod (S1) | |
| 51011 | sectestbed-cloudron | 4G | local-nonprod (S1) | |
| 51012 | sectestbed-hfnoc | 4G | local-nonprod (S1) | |
| 51013 | sectestbed-rancherplatform | 4G | local-nonprod (S1) | |
| 51014 | sectestbed-proxmox-mailgw | 4G | local-nonprod (S1) | |
| 53100 | tsys-preprod-awx | 9G | local-nonprod (S1) | 160G disk |
| 53101 | tsys-preprod-siem | 12G | local-nonprod (S1) | |
| 53102 | tsys-preprod-rancherplatform | 8G | local-nonprod (S1) | |
| 53103 | tsys-preprod-proxmoxmailgw | 4G | local-nonprod (S1) | |
| 6000 | sectestbed-sandbox | 4G | local-nonprod (S1) | Has 3 state snapshots |
### Other stopped VMs
| VMID | Name | Host | RAM | Disk | Notes |
|------|------|------|-----|------|-------|
| 102 | pfv-k8s-wnode-tsys1 | tsys1 | 4G | (no disk) | Stopped, no boot disk |
| 500 | DellOpenManageEnterprise | tsys5 | 20G | **D7 (gone!)** | **Would fail -- disk export removed** |
| 5500 | RestoreTemplate | tsys5 | 2G | D2 | Template |
| 1000 | KNELTemplate | tsys1 | 2G | D2 | Base template |
| 3000 | KNELTemplate | tsys3 | 2G | D2 | Base template copy |
| 4000 | KNELTemplate | tsys4 | 2G | (local) | Base template copy |
tests/README.md
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@@ -1,176 +1,10 @@
# PFVCluster Test Suite # tests/README.md
## Overview > **Documentation moved to Discourse — the canonical source of truth.**
>
This testing framework provides comprehensive validation for the PFVCluster infrastructure. It includes unit tests, integration tests, security tests, and system validation. > **Test suite + VM validation harness**
>
## Test Categories > **Read it here:** https://community.turnsys.com/t/302
>
### 1. Unit Tests (`unit/`) > *Migrated 2026-08-06. This file is kept as a pointer for git-browsing context.
- **Purpose:** Test individual framework functions and components > Do not update content here — edit the Discourse wiki topic instead.*
- **Scope:** Framework includes, helper functions, syntax validation
- **Example:** `framework-functions.sh` - Tests logging, pretty print, and error handling functions
### 2. Integration Tests (`integration/`)
- **Purpose:** Test complete workflows and module interactions
- **Scope:** End-to-end deployment scenarios, module integration
- **Future:** Module interaction testing, deployment workflow validation
### 3. Security Tests (`security/`)
- **Purpose:** Validate security configurations and practices
- **Scope:** HTTPS enforcement, deployment security, SSH hardening
- **Example:** `https-enforcement.sh` - Validates all URLs use HTTPS
### 4. Validation Tests (`validation/`)
- **Purpose:** System compatibility and pre-flight checks
- **Scope:** System requirements, network connectivity, permissions
- **Example:** `system-requirements.sh` - Validates minimum system requirements
## Usage
### Run All Tests
```bash
./run-tests.sh
```
### Run Specific Test Categories
```bash
./run-tests.sh unit # Unit tests only
./run-tests.sh integration # Integration tests only
./run-tests.sh security # Security tests only
./run-tests.sh validation # Validation tests only
```
### Run Individual Tests
```bash
./validation/system-requirements.sh
./security/https-enforcement.sh
./unit/framework-functions.sh
```
## Test Results
- **Console Output:** Real-time test results with color-coded status
- **JSON Reports:** Detailed test reports saved to `logs/tests/`
- **Exit Codes:** 0 for success, 1 for failures
## Configuration Validation
The validation framework performs pre-flight checks to ensure system compatibility:
### System Requirements
- **Memory:** Minimum 2GB RAM
- **Disk Space:** Minimum 10GB available
- **OS Compatibility:** Ubuntu/Debian (tested), others (may work)
### Network Connectivity
- Tests connection to required download sources
- Validates HTTPS endpoints are accessible
- Checks for firewall/proxy issues
### Command Dependencies
- Verifies required tools are installed (`curl`, `wget`, `git`, `systemctl`, `apt-get`)
- Checks for proper versions where applicable
### Permissions
- Validates write access to system directories
- Checks for required administrative privileges
## Adding New Tests
### Test File Structure
```bash
#!/bin/bash
set -euo pipefail
function test_something() {
echo "🔍 Testing something..."
if [[ condition ]]; then
echo "✅ Test passed"
return 0
else
echo "❌ Test failed"
return 1
fi
}
function main() {
echo "🧪 Running Test Suite Name"
echo "=========================="
local total_failures=0
test_something || ((total_failures++))
echo "=========================="
if [[ $total_failures -eq 0 ]]; then
echo "✅ All tests passed"
exit 0
else
echo "❌ $total_failures tests failed"
exit 1
fi
}
if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
main "$@"
fi
```
### Test Categories Guidelines
- **Unit Tests:** Focus on individual functions, fast execution
- **Integration Tests:** Test module interactions, longer execution
- **Security Tests:** Validate security configurations
- **Validation Tests:** Pre-flight system checks
## Continuous Integration
The testing framework is designed to integrate with CI/CD pipelines:
```bash
# Example CI script
./run-tests.sh all
test_exit_code=$?
if [[ $test_exit_code -eq 0 ]]; then
echo "All tests passed - deployment approved"
else
echo "Tests failed - deployment blocked"
exit 1
fi
```
## Test Development Best Practices
1. **Clear Test Names:** Use descriptive function names
2. **Proper Exit Codes:** Return 0 for success, 1 for failure
3. **Informative Output:** Use emoji and clear messages
4. **Timeout Protection:** Use timeout for network operations
5. **Cleanup:** Remove temporary files and resources
6. **Error Handling:** Use `set -euo pipefail` for strict error handling
## Troubleshooting
### Common Issues
- **Permission Denied:** Run tests with appropriate privileges
- **Network Timeouts:** Check firewall and proxy settings
- **Missing Dependencies:** Install required tools before testing
- **Script Errors:** Validate syntax with `bash -n script.sh`
### Debug Mode
```bash
# Enable debug output
export DEBUG=1
./run-tests.sh
```
## Contributing
When adding new functionality to PFVCluster:
1. Add corresponding tests in appropriate category
2. Run full test suite before committing
3. Update documentation for new test cases
4. Ensure tests pass in clean environment