Logan CusanoandClaude Opus 5.5
c9f162a508
robotastic/trunk-recorder:5.2.1 pinned by digest, behind the trunk-recorder compose profile, host network, /dev/bus/usb. run.sh restarts TR when the edge-node rewrites config.json and reports state for health; drb-upload.sh hands each finished call (wav, then json) to recordings/tr-inbox. README carries the GPL-3.0 source note. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
88 lines
2.6 KiB
Bash
88 lines
2.6 KiB
Bash
#!/bin/sh
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# Supervisor for Trunk Recorder inside its container (node-26#45).
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#
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# The edge-node writes /app/config.json from the C2 system config but has no
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# Docker access, so it cannot restart this container. This loop does it:
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# - waits for config.json, then runs trunk-recorder on it
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# - restarts it when config.json changes or /app/restart-request appears
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# - keeps it stopped while /app/stop-request exists (dashboard Stop)
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# - restarts it after a crash, backing off 5 s -> 60 s (`restarts` counts
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# crashes only, not config restarts)
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# - writes /app/drb-status.json every few seconds for the edge-node's health
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# check (state, pid, started_at, restarts, last_exit, epoch)
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set -u
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APP="${DRB_TR_APP:-/app}"
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CFG="$APP/config.json"
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STATUS="$APP/drb-status.json"
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RESTART="$APP/restart-request"
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STOP="$APP/stop-request"
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REC="${DRB_RECORDINGS:-/recordings}"
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mkdir -p "$APP/logs" "$REC/tr-capture" "$REC/tr-inbox"
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pid=""
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started=0
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restarts=0
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last_exit=null
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backoff=5
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cfgsum=""
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write_status() {
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printf '{"state":"%s","pid":%s,"started_at":%s,"restarts":%s,"last_exit":%s,"epoch":%s}\n' \
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"$1" "${pid:-null}" "$started" "$restarts" "$last_exit" "$(date +%s)" > "$STATUS.tmp" \
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&& mv -f "$STATUS.tmp" "$STATUS"
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}
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sum() { md5sum "$CFG" 2>/dev/null | cut -d' ' -f1; }
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stop_tr() {
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if [ -n "$pid" ] && kill -0 "$pid" 2>/dev/null; then
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kill -TERM "$pid"
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i=0
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while kill -0 "$pid" 2>/dev/null && [ "$i" -lt 30 ]; do sleep 0.5; i=$((i + 1)); done
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kill -KILL "$pid" 2>/dev/null
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wait "$pid" 2>/dev/null
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fi
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pid=""
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}
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trap 'stop_tr; write_status stopped; exit 0' TERM INT
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nap() { sleep "$1" & wait $!; }
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while :; do
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if [ -f "$STOP" ]; then
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[ -n "$pid" ] && { echo "drb: stop requested"; stop_tr; }
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write_status stopped; nap 2; continue
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fi
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if [ ! -f "$CFG" ]; then
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write_status waiting_for_config; nap 5; continue
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fi
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if [ -z "$pid" ]; then
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rm -f "$RESTART"
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cfgsum="$(sum)"
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echo "drb: starting trunk-recorder"
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trunk-recorder --config="$CFG" &
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pid=$!
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started="$(date +%s)"
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fi
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write_status running
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nap 5
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if ! kill -0 "$pid" 2>/dev/null; then
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wait "$pid" 2>/dev/null
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last_exit=$?
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pid=""
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restarts=$((restarts + 1))
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# A run that lasted a while resets the backoff.
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[ $(( $(date +%s) - started )) -gt 120 ] && backoff=5
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echo "drb: trunk-recorder exited ($last_exit); restarting in ${backoff}s"
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write_status crashed
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nap "$backoff"
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backoff=$((backoff * 2)); [ "$backoff" -gt 60 ] && backoff=60
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continue
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fi
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if [ -f "$RESTART" ] || [ "$(sum)" != "$cfgsum" ]; then
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echo "drb: config changed or restart requested — restarting trunk-recorder"
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stop_tr
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fi
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done
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