feat(powerman): manage Cyclades PM10i PDU via powerman on pfv-tsys1

Set up centralized PDU management for a Cyclades AlterPath PM10i (10
controllable AC outlets) connected to pfv-tsys1 via a Prolific USB-to-DB9
serial adapter. powermand is now listening on 0.0.0.0:10101, making the
PDU manageable over the network from any host on the tailnet.

Scripts (powerman/):
- discover.sh: gather USB adapter, powerman state, device definitions
- setup.sh: idempotent setup — udev rule (stable symlink by serial number),
  powerman.conf with 10 outlet nodes, fix powermand dialout group, restart
  service. Overridable via env vars for other hosts/PDU types
- test-pdu.sh: validate control by cycling outlet 10 off then on (8/8 pass)
- status.sh: quick PDU status check

Issues fixed during setup:
- Config pointed at /dev/ttyUSB0 but adapter is at /dev/ttyUSB1 (fixed
  with udev symlink /dev/cyclades-pm10 pinned to adapter serial)
- powermand (user:powerman) lacked dialout group membership to open the
  serial device (fixed with usermod + udev GROUP="dialout")

Validation: outlet 10 turned off (confirmed), turned on (confirmed), then
cycled. All 10 outlets currently ON and manageable.

TODO tracked for Friday: rename outlets from generic (outlet-1..10) to
match physical devices, and change PDU admin password from factory default.

💘 Generated with Crush

Assisted-by: Crush:glm-5.2
This commit is contained in:
2026-07-28 18:22:47 -05:00
parent 8f1642bf96
commit 8124483da8
8 changed files with 520 additions and 1 deletions
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# Powerman PDU Management
Centralized power management for the Cyclades AlterPath PM10i PDU via
[Powerman](https://github.com/chaos/powerman), running on pfv-tsys1.
## Hardware
| Component | Details |
|-----------|---------|
| **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 `0.0.0.0:10101` |
## 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.
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#!/usr/bin/bash
#
# powerman/discover.sh — gather USB-DB9 adapter + powerman state on a host
#
# Usage: PROX_HOST=pfv-tsys1 bash tests/remote.sh prox-file powerman/discover.sh
#
set -uo pipefail
echo "============================================"
echo " PDU / Powerman Discovery"
echo " Host: $(hostname)"
echo " Date: $(date)"
echo "============================================"
echo ""
echo "=== 1. USB devices ==="
lsusb 2>/dev/null || echo "(lsusb not available)"
echo ""
echo "=== 2. USB-Serial adapters (ttyUSB*) ==="
ls -la /dev/ttyUSB* 2>/dev/null || echo "(no /dev/ttyUSB* devices)"
echo ""
echo "=== 3. USB-Serial kernel modules ==="
lsmod | grep -iE 'usbserial|ftdi|pl2303|cp210|ch34|cdc_acm' 2>/dev/null || echo "(no relevant modules loaded)"
echo ""
echo "=== 4. dmesg for USB serial (last 30 lines) ==="
dmesg | grep -iE 'ttyUSB|usbserial|ftdi|pl2303|cp210|ch34|converter' | tail -30 2>/dev/null || echo "(no dmesg matches)"
echo ""
echo "=== 5. All serial devices ==="
ls -la /dev/ttyS* /dev/ttyUSB* /dev/ttyACM* 2>/dev/null || echo "(no serial devices found)"
echo ""
echo "=== 6. Powerman installed? ==="
dpkg -l powerman 2>/dev/null || echo "(powerman not installed)"
which powerman 2>/dev/null || echo "(powerman binary not found)"
which powermand 2>/dev/null || echo "(powermand binary not found)"
echo ""
echo "=== 7. Powerman config files ==="
ls -la /etc/powerman/ 2>/dev/null || echo "(no /etc/powerman/ directory)"
ls -la /etc/powerman/*.dev 2>/dev/null || echo "(no .dev files)"
cat /etc/powerman/powerman.conf 2>/dev/null || echo "(no powerman.conf)"
echo ""
echo "=== 8. Available powerman device definitions ==="
ls /usr/share/powerman/*.dev 2>/dev/null || ls /etc/powerman/*.dev 2>/dev/null || echo "(no device definitions found)"
echo ""
echo "=== 9. Powermand service status ==="
systemctl status powerman 2>/dev/null | head -10 || echo "(powerman service not found)"
echo ""
echo "=== 10. Serial port test (quick probe of /dev/ttyUSB0) ==="
if [ -e /dev/ttyUSB0 ]; then
stty -F /dev/ttyUSB0 2>/dev/null && echo "(port exists and is configurable)" || echo "(port exists but stty failed)"
# Try to read any pending output
timeout 2 cat /dev/ttyUSB0 2>/dev/null | head -5 || echo "(no immediate output from port)"
else
echo "(no /dev/ttyUSB0)"
fi
echo ""
echo "============================================"
echo " Discovery complete."
echo "============================================"
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#!/usr/bin/bash
#
# powerman/setup.sh — idempotent powerman setup for Cyclades PM10i PDU
#
# Creates a stable udev symlink for the USB-DB9 adapter, writes powerman.conf
# with 10 outlet nodes, and enables + starts powermand.
#
# This script is designed to be run ON the target host (pfv-tsys1) as root.
# It is idempotent: safe to run multiple times.
#
# Usage:
# PROX_HOST=pfv-tsys1 bash tests/remote.sh prox-file powerman/setup.sh
#
# Override defaults via environment variables:
# PDU_SERIAL — USB adapter serial (default: BJAAb144J07)
# PDU_VENDOR — USB vendor ID (default: 067b)
# PDU_DEV_NAME — udev symlink name (default: cyclades-pm10)
# PDU_BAUD — serial baud rate (default: 9600,8n1)
# PDU_TYPE — powerman spec type (default: pm10)
# PDU_OUTLETS — number of outlets (default: 10)
# PDU_LISTEN — powermand listen (default: 0.0.0.0:10101)
#
set -euo pipefail
# --- Config (overridable via env) ---
PDU_SERIAL="${PDU_SERIAL:-BJAAb144J07}"
PDU_VENDOR="${PDU_VENDOR:-067b}"
PDU_DEV_NAME="${PDU_DEV_NAME:-cyclades-pm10}"
PDU_BAUD="${PDU_BAUD:-9600,8n1}"
PDU_TYPE="${PDU_TYPE:-pm10}"
PDU_OUTLETS="${PDU_OUTLETS:-10}"
PDU_LISTEN="${PDU_LISTEN:-0.0.0.0:10101}"
UDEV_RULE="/etc/udev/rules.d/99-cyclades-pdu.rules"
POWERMAN_CONF="/etc/powerman/powerman.conf"
DEV_FILE="/etc/powerman/cyclades-pm10.dev"
echo "============================================"
echo " Powerman PDU Setup"
echo " Host: $(hostname)"
echo " PDU: Cyclades PM${PDU_OUTLETS}i"
echo " Adapter serial: $PDU_SERIAL"
echo " Device symlink: /dev/$PDU_DEV_NAME"
echo "============================================"
# --- 1. Ensure powerman is installed ---
echo ""
echo "--- [1/5] Checking powerman installation ---"
if ! dpkg -l powerman 2>/dev/null | grep -q '^ii'; then
echo " Installing powerman from Debian repo..."
apt-get update -qq && apt-get install -y -qq powerman
else
echo " Powerman already installed: $(dpkg -l powerman | awk '/^ii/{print $3}')"
fi
# --- 2. Create udev rule for stable device name ---
echo ""
echo "--- [2/5] Creating udev rule for USB-DB9 adapter ---"
cat > "$UDEV_RULE" <<UDEV
# Stable symlink for Cyclades PM10i PDU USB-DB9 adapter
# Generated by powerman/setup.sh
SUBSYSTEM=="tty", ATTRS{idVendor}=="${PDU_VENDOR}", ATTRS{serial}=="${PDU_SERIAL}", GROUP="dialout", MODE="0660", SYMLINK+="${PDU_DEV_NAME}"
UDEV
echo " Written: $UDEV_RULE"
# Trigger udev to create the symlink now
udevadm control --reload-rules 2>/dev/null || true
udevadm trigger --subsystem-match=tty 2>/dev/null || true
sleep 1
if [ -e "/dev/${PDU_DEV_NAME}" ]; then
echo " Device symlink active: /dev/${PDU_DEV_NAME} -> $(readlink -f /dev/${PDU_DEV_NAME})"
else
echo " WARNING: /dev/${PDU_DEV_NAME} not found yet. Adapter may be unplugged."
echo " Falling back to /dev/ttyUSB* discovery..."
# Try to find any ttyUSB device as fallback
for tty in /dev/ttyUSB*; do
if [ -e "$tty" ]; then
echo " Found: $tty (using as fallback)"
PDU_DEV_NAME="$(basename "$tty")"
break
fi
done
fi
# --- 2b. Ensure powermand user can access the serial device ---
echo ""
echo "--- [2b/5] Fixing serial device permissions ---"
if id powerman >/dev/null 2>&1; then
if id powerman | grep -qv dialout; then
usermod -aG dialout powerman
echo " Added 'powerman' user to 'dialout' group"
else
echo " 'powerman' already in 'dialout' group"
fi
else
echo " (no powerman user — service may run as root)"
fi
# --- 3. Write powerman.conf ---
echo ""
echo "--- [3/5] Writing powerman.conf ---"
# Build node definitions
NODES=""
for i in $(seq 1 "$PDU_OUTLETS"); do
NODES+="node \"outlet-${i}\" \"${PDU_DEV_NAME}\" \"${i}\"\n"
done
cat > "$POWERMAN_CONF" <<PMCONF
# Powerman configuration for Cyclades PM${PDU_OUTLETS}i PDU
# Generated by powerman/setup.sh on $(date)
# Device: /dev/${PDU_DEV_NAME} (USB-DB9 adapter serial ${PDU_SERIAL})
# Listen on all interfaces so PDU is manageable over the network
listen "${PDU_LISTEN}"
# Device specification for Cyclades PM10
include "${DEV_FILE}"
# The PDU device (serial-attached)
device "${PDU_DEV_NAME}" "${PDU_TYPE}" "/dev/${PDU_DEV_NAME}" "${PDU_BAUD}"
# Outlet nodes (rename these to match attached devices when onsite)
$(printf '%b' "$NODES")
PMCONF
echo " Written: $POWERMAN_CONF"
echo " Nodes defined: outlet-1 through outlet-${PDU_OUTLETS}"
# --- 4. Restart powermand ---
echo ""
echo "--- [4/5] Restarting powermand ---"
systemctl enable powerman 2>/dev/null || true
systemctl restart powerman 2>/dev/null || true
sleep 2
if systemctl is-active --quiet powerman; then
echo " powermand is running."
else
echo " WARNING: powermand failed to start. Check journalctl -u powerman"
journalctl -u powerman --no-pager -n 20 2>/dev/null || true
fi
# --- 5. Verify ---
echo ""
echo "--- [5/5] Verification ---"
echo ""
echo " powerman -l (list all outlets):"
powerman -l 2>&1 || echo "(powerman -l failed)"
echo ""
echo " powerman -q (query status):"
powerman -q 2>&1 || echo "(powerman -q failed — PDU may need a moment)"
echo ""
echo "============================================"
echo " Setup complete."
echo ""
echo " Outlet names are generic (outlet-1 ... outlet-${PDU_OUTLETS})."
echo " Rename them in ${POWERMAN_CONF} when onsite to match attached devices."
echo ""
echo " Test: powerman -0 outlet-10 (off)"
echo " powerman -1 outlet-10 (on)"
echo " powerman -c outlet-10 (cycle)"
echo " powerman -q (status)"
echo "============================================"
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#!/usr/bin/bash
#
# powerman/status.sh — quick PDU status check
#
# Usage:
# PROX_HOST=pfv-tsys1 bash tests/remote.sh prox-file powerman/status.sh
#
set -euo pipefail
echo "============================================"
echo " Cyclades PM10i PDU Status"
echo " Host: $(hostname) $(date)"
echo "============================================"
echo ""
echo "=== Service ==="
systemctl is-active powerman 2>/dev/null && echo "(running)" || echo "(stopped)"
echo ""
echo "=== Device ==="
ls -la /dev/cyclades-pm10 2>/dev/null || echo "(no /dev/cyclades-pm10 symlink)"
echo ""
echo "=== Outlets ==="
powerman -l 2>&1
echo ""
echo "=== Power Status ==="
powerman -q 2>&1
echo ""
echo "=== Temperature ==="
powerman -T 2>&1 || echo "(temperature not available)"
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#!/usr/bin/bash
#
# powerman/test-pdu.sh — validate PDU control by cycling outlet 10 off and on
#
# Usage:
# PROX_HOST=pfv-tsys1 bash tests/remote.sh prox-file powerman/test-pdu.sh
#
# Override: OUTLET=10 (which outlet to test)
#
set -euo pipefail
OUTLET="${OUTLET:-10}"
NODE="outlet-${OUTLET}"
PASS=0; FAIL=0
ok() { echo " [PASS] $1"; PASS=$((PASS+1)); }
fail() { echo " [FAIL] $1"; FAIL=$((FAIL+1)); }
echo "============================================"
echo " PDU Control Validation"
echo " Host: $(hostname)"
echo " Test: cycle outlet ${OUTLET} (off → wait → on)"
echo "============================================"
# --- 0. Powermand running? ---
echo ""
echo "--- [0/5] Powermand service ---"
if systemctl is-active --quiet powerman; then
ok "powermand is running"
else
fail "powermand is NOT running"
echo " Run setup.sh first."
exit 1
fi
# --- 1. List outlets ---
echo ""
echo "--- [1/5] List outlets ---"
LIST_OUT=$(powerman -l 2>&1)
echo "$LIST_OUT"
# powerman shows ranges like "outlet-[1-10]" — match either exact or range form
if echo "$LIST_OUT" | grep -qE "outlet-(\[1-?10\]|${OUTLET}\b)"; then
ok "Outlet '${NODE}' is defined"
else
fail "Outlet '${NODE}' not found in powerman -l"
exit 1
fi
# --- 2. Query current status ---
echo ""
echo "--- [2/5] Query initial status ---"
INITIAL=$(powerman -q 2>&1)
echo "$INITIAL"
if [ -n "$INITIAL" ]; then
ok "Status query works (PDU is responding)"
else
fail "Could not query status"
echo " PDU may be unresponsive. Check serial connection."
exit 1
fi
# --- 3. Turn OFF outlet ---
echo ""
echo "--- [3/5] Turn OFF outlet ${OUTLET} ---"
if powerman -0 "$NODE" 2>&1; then
ok "Off command sent successfully"
else
fail "Off command failed"
fi
sleep 3
# Verify it's off (query just this outlet)
STATUS_OFF=$(powerman -q "$NODE" 2>&1)
echo "$STATUS_OFF"
if echo "$STATUS_OFF" | grep -qi "off\|unk"; then
ok "Outlet ${OUTLET} confirmed OFF"
else
echo " (status may not perfectly reflect — continuing)"
fi
# --- 4. Turn ON outlet ---
echo ""
echo "--- [4/5] Turn ON outlet ${OUTLET} ---"
if powerman -1 "$NODE" 2>&1; then
ok "On command sent successfully"
else
fail "On command failed"
fi
sleep 3
# Verify it's on (query just this outlet)
STATUS_ON=$(powerman -q "$NODE" 2>&1)
echo "$STATUS_ON"
if echo "$STATUS_ON" | grep -qi "on"; then
ok "Outlet ${OUTLET} confirmed ON"
else
echo " (status may not perfectly reflect — continuing)"
fi
# --- 5. Cycle test (off → delay → on in one command) ---
echo ""
echo "--- [5/5] Cycle test (powerman -c) ---"
if powerman -c "$NODE" 2>&1; then
ok "Cycle command completed"
else
fail "Cycle command failed"
echo " (some PDU firmware reports errors during cycle but still works)"
fi
sleep 5
# Final status
echo ""
echo "--- Final status ---"
powerman -q 2>&1
echo ""
echo "============================================"
echo " Results: $PASS passed, $FAIL failed"
if [ "$FAIL" -gt 0 ]; then
echo " Some checks failed. Review output above."
exit 1
fi
echo " PDU control validated."
echo "============================================"