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:
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#!/usr/bin/bash
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#
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# powerman/setup.sh — idempotent powerman setup for Cyclades PM10i PDU
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#
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# Creates a stable udev symlink for the USB-DB9 adapter, writes powerman.conf
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# with 10 outlet nodes, and enables + starts powermand.
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#
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# This script is designed to be run ON the target host (pfv-tsys1) as root.
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# It is idempotent: safe to run multiple times.
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#
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# Usage:
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# PROX_HOST=pfv-tsys1 bash tests/remote.sh prox-file powerman/setup.sh
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#
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# Override defaults via environment variables:
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# PDU_SERIAL — USB adapter serial (default: BJAAb144J07)
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# PDU_VENDOR — USB vendor ID (default: 067b)
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# PDU_DEV_NAME — udev symlink name (default: cyclades-pm10)
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# PDU_BAUD — serial baud rate (default: 9600,8n1)
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# PDU_TYPE — powerman spec type (default: pm10)
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# PDU_OUTLETS — number of outlets (default: 10)
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# PDU_LISTEN — powermand listen (default: 0.0.0.0:10101)
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#
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set -euo pipefail
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# --- Config (overridable via env) ---
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PDU_SERIAL="${PDU_SERIAL:-BJAAb144J07}"
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PDU_VENDOR="${PDU_VENDOR:-067b}"
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PDU_DEV_NAME="${PDU_DEV_NAME:-cyclades-pm10}"
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PDU_BAUD="${PDU_BAUD:-9600,8n1}"
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PDU_TYPE="${PDU_TYPE:-pm10}"
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PDU_OUTLETS="${PDU_OUTLETS:-10}"
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PDU_LISTEN="${PDU_LISTEN:-0.0.0.0:10101}"
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UDEV_RULE="/etc/udev/rules.d/99-cyclades-pdu.rules"
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POWERMAN_CONF="/etc/powerman/powerman.conf"
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DEV_FILE="/etc/powerman/cyclades-pm10.dev"
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echo "============================================"
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echo " Powerman PDU Setup"
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echo " Host: $(hostname)"
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echo " PDU: Cyclades PM${PDU_OUTLETS}i"
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echo " Adapter serial: $PDU_SERIAL"
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echo " Device symlink: /dev/$PDU_DEV_NAME"
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echo "============================================"
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# --- 1. Ensure powerman is installed ---
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echo ""
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echo "--- [1/5] Checking powerman installation ---"
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if ! dpkg -l powerman 2>/dev/null | grep -q '^ii'; then
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echo " Installing powerman from Debian repo..."
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apt-get update -qq && apt-get install -y -qq powerman
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else
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echo " Powerman already installed: $(dpkg -l powerman | awk '/^ii/{print $3}')"
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fi
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# --- 2. Create udev rule for stable device name ---
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echo ""
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echo "--- [2/5] Creating udev rule for USB-DB9 adapter ---"
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cat > "$UDEV_RULE" <<UDEV
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# Stable symlink for Cyclades PM10i PDU USB-DB9 adapter
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# Generated by powerman/setup.sh
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SUBSYSTEM=="tty", ATTRS{idVendor}=="${PDU_VENDOR}", ATTRS{serial}=="${PDU_SERIAL}", GROUP="dialout", MODE="0660", SYMLINK+="${PDU_DEV_NAME}"
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UDEV
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echo " Written: $UDEV_RULE"
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# Trigger udev to create the symlink now
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udevadm control --reload-rules 2>/dev/null || true
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udevadm trigger --subsystem-match=tty 2>/dev/null || true
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sleep 1
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if [ -e "/dev/${PDU_DEV_NAME}" ]; then
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echo " Device symlink active: /dev/${PDU_DEV_NAME} -> $(readlink -f /dev/${PDU_DEV_NAME})"
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else
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echo " WARNING: /dev/${PDU_DEV_NAME} not found yet. Adapter may be unplugged."
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echo " Falling back to /dev/ttyUSB* discovery..."
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# Try to find any ttyUSB device as fallback
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for tty in /dev/ttyUSB*; do
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if [ -e "$tty" ]; then
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echo " Found: $tty (using as fallback)"
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PDU_DEV_NAME="$(basename "$tty")"
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break
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fi
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done
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fi
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# --- 2b. Ensure powermand user can access the serial device ---
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echo ""
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echo "--- [2b/5] Fixing serial device permissions ---"
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if id powerman >/dev/null 2>&1; then
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if id powerman | grep -qv dialout; then
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usermod -aG dialout powerman
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echo " Added 'powerman' user to 'dialout' group"
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else
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echo " 'powerman' already in 'dialout' group"
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fi
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else
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echo " (no powerman user — service may run as root)"
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fi
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# --- 3. Write powerman.conf ---
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echo ""
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echo "--- [3/5] Writing powerman.conf ---"
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# Build node definitions
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NODES=""
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for i in $(seq 1 "$PDU_OUTLETS"); do
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NODES+="node \"outlet-${i}\" \"${PDU_DEV_NAME}\" \"${i}\"\n"
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done
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cat > "$POWERMAN_CONF" <<PMCONF
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# Powerman configuration for Cyclades PM${PDU_OUTLETS}i PDU
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# Generated by powerman/setup.sh on $(date)
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# Device: /dev/${PDU_DEV_NAME} (USB-DB9 adapter serial ${PDU_SERIAL})
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# Listen on all interfaces so PDU is manageable over the network
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listen "${PDU_LISTEN}"
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# Device specification for Cyclades PM10
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include "${DEV_FILE}"
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# The PDU device (serial-attached)
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device "${PDU_DEV_NAME}" "${PDU_TYPE}" "/dev/${PDU_DEV_NAME}" "${PDU_BAUD}"
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# Outlet nodes (rename these to match attached devices when onsite)
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$(printf '%b' "$NODES")
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PMCONF
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echo " Written: $POWERMAN_CONF"
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echo " Nodes defined: outlet-1 through outlet-${PDU_OUTLETS}"
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# --- 4. Restart powermand ---
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echo ""
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echo "--- [4/5] Restarting powermand ---"
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systemctl enable powerman 2>/dev/null || true
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systemctl restart powerman 2>/dev/null || true
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sleep 2
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if systemctl is-active --quiet powerman; then
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echo " powermand is running."
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else
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echo " WARNING: powermand failed to start. Check journalctl -u powerman"
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journalctl -u powerman --no-pager -n 20 2>/dev/null || true
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fi
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# --- 5. Verify ---
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echo ""
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echo "--- [5/5] Verification ---"
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echo ""
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echo " powerman -l (list all outlets):"
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powerman -l 2>&1 || echo "(powerman -l failed)"
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echo ""
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echo " powerman -q (query status):"
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powerman -q 2>&1 || echo "(powerman -q failed — PDU may need a moment)"
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echo ""
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echo "============================================"
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echo " Setup complete."
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echo ""
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echo " Outlet names are generic (outlet-1 ... outlet-${PDU_OUTLETS})."
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echo " Rename them in ${POWERMAN_CONF} when onsite to match attached devices."
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echo ""
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echo " Test: powerman -0 outlet-10 (off)"
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echo " powerman -1 outlet-10 (on)"
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echo " powerman -c outlet-10 (cycle)"
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echo " powerman -q (status)"
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echo "============================================"
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