The first architecture set did not render (backslash-n escapes, semicolons in sequence messages, braces in text). All diagrams rewritten to conservative syntax and QA-verified with mermaid-cli (3/3 PARSE-OK). qa-diagrams.sh added; CI enforces it on docs changes. Ticket: https://projects.knownelement.com/issues/832
94 lines
3.2 KiB
Markdown
94 lines
3.2 KiB
Markdown
# KNELSecretsManager — Architecture
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Status: production. Ruling chain: ADR-002 (containerized CLI) -> ADR-003
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(pure-Go `smcli`, Rust `bw` retired). Founder directives: #829/#832.
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## Components
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```mermaid
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flowchart LR
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V["Vaultwarden vault - pwvault.turnsys.com"]
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C["smcli container - ukrrs-secretsmgr-cli"]
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S1["TSGCOO entry - data2 TSGCOO bin sm"]
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S2["lane crossover - tools sm"]
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W1["mred-vp - Redmine identity"]
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W2["ci-green.sh - Gitea admin"]
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W3["redmine-sweep.sh"]
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B["KNELBMS on-box secrets.yaml"]
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K["pfv-k8s secrets - glpi-creds, flux PAT"]
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R["nightly timers - pve backup, glpi reconcile"]
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S1 --> C
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S2 --> C
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W1 --> C
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W2 --> C
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W3 --> C
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C -->|HTTPS login sync CRUD| V
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C -.-> B
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C -.-> K
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C -.-> R
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```
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## Auth + unlock sequence
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```mermaid
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sequenceDiagram
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participant U as Consumer
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participant S as smcli
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participant V as Vault
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U->>S: login with email password TOTP seed
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S->>V: POST prelogin - get KDF params
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V-->>S: PBKDF2 iterations or Argon2id
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S->>S: derive master key and auth hash
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S->>V: POST identity connect token
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V-->>S: 400 - two factor required
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S->>S: compute TOTP code - RFC 6238
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S->>V: token request plus twoFactorToken
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V-->>S: access token and encrypted keys
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S->>V: GET sync
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V-->>S: profile key - encrypted
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S->>S: stretch master key - decrypt user key
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S->>S: write state file 0600
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```
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Item payloads are type-2 encStrings (AES-256-CBC + HMAC-SHA256, 32B enc +
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32B mac keys) encrypted/decrypted locally; the vault never sees plaintext.
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## Consumer pattern
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```bash
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# env-style consumers (export lines; URI/USERNAME/PASSWORD + original keys)
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eval "$(docker exec -i ukrrs-secretsmgr-cli smcli env creds/<name>)"
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# surgical single-field rotation update
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docker exec -i ukrrs-secretsmgr-cli smcli setfield creds/<name> <KEY> <newvalue>
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```
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Items are LOGIN type: username + password/API-key as first-class fields,
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service URLs as URIs, remaining keys as named custom fields (hidden where
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secret). Original env key names are preserved as the custom-field names.
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## Rotation program (#829)
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All pre-migration material is presumed BURNED (plaintext on disk + LLM
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exposure). Waves, each item = rotate at source -> `setfield` in vault ->
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rewire consumers to `sm env` -> validate (guard rule: never write the vault
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from a failed rotation):
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1. Tooling tokens (librenms*, wazuh DONE, grafana*, gvm, technitium, phpipam,
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rancher-sectest, beszel, pihole, PMG pair, PBS tokens)
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2. Agent identities (gitea agent-stack, vptechops gitea/redmine)
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3. Platform (cloudron API token, kuma, discourse)
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4. Deep-wired (flux PAT + gitea runner + HA on-box secrets.yaml + k8s
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secrets + PVE upsagent tokens)
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\* item-specific notes: librenms — token-mint API route absent on this
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install (UI/DB path); grafana — SSO-managed, local admin parked (instance
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password policy blocks CLI reset).
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## KNELBMS integration
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See [integration-knelbms.md](integration-knelbms.md). Short form: the BMS
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deploy pipeline (KNELBMS repo, packages/deploy_pipeline.yaml) consumes
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`gitea_auth_header` + `kuma_push_url` + `pve_*_api_token` from on-box
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`/config/secrets.yaml`; the vault is the source of record and rotations
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push to the box through the CR-gated provisioning path.
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