Logan Cusano
7c4a3f2f20
The pulse_socket named volume survives container recreation, so after a
compose recreate the previous container's /run/pulse/pid and native
socket were still present. PulseAudio read the stale pid file, decided a
daemon was already running, and refused to start:
E: [pulseaudio] pid.c: Daemon already running.
The entrypoint still reported "PulseAudio socket ready" because it only
checked that the socket file existed - and a stale one did. Capture then
failed in a restart loop against a dead daemon.
Readiness in both the op25 entrypoint and drb-edge-node now means a
pactl probe actually succeeds. Stale pid/socket are removed only when
that probe fails, so a live daemon's socket is never deleted.
pulseaudio-utils was missing from the edge-node image (only libpulse0
was installed), so no pactl binary existed there at all - added.
Capture exits are now classified: a missing source logs at ERROR and
names the configured PULSE_SOURCE, rather than looking identical to
"daemon not up yet". Retrying forever against a wrong source name is how
the April PulseAudio failure stayed hidden.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
66 lines
2.7 KiB
Bash
66 lines
2.7 KiB
Bash
#!/bin/bash
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PULSE_SOCKET=/run/pulse/native
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PULSE_PIDFILE=/run/pulse/pid
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mkdir -p /run/pulse
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chmod 777 /run/pulse
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# Returns 0 (true) only when a PulseAudio daemon actually answers on
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# $PULSE_SOCKET. A socket/pid FILE existing proves nothing by itself — that
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# is exactly the bug this script works around (see stale-state check below).
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pulse_daemon_alive() {
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PULSE_SERVER="unix:${PULSE_SOCKET}" timeout 2 pactl info >/dev/null 2>&1
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}
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# --- Clear stale PulseAudio state left behind by a killed daemon ---
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# The `pulse_socket` named volume survives container recreation, but the
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# PulseAudio process that owned it does not. If the previous container was
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# recreated (not gracefully stopped), its pid file and native socket are
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# still sitting in the volume; pulseaudio's pid.c sees the pid file and
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# refuses to start ("Daemon already running") even though nothing is
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# listening. Only remove these when nothing actually answers on the socket —
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# never delete a socket a live daemon is using.
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if [ -S "$PULSE_SOCKET" ] || [ -f "$PULSE_PIDFILE" ]; then
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if pulse_daemon_alive; then
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echo "PulseAudio daemon already alive and responding at ${PULSE_SOCKET} — leaving state as-is."
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else
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echo "STALE STATE: found ${PULSE_PIDFILE} / ${PULSE_SOCKET} from a previous container, but no daemon answers — clearing before start."
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rm -f "$PULSE_SOCKET" "$PULSE_PIDFILE"
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fi
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fi
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# --- Start PulseAudio Daemon ---
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# -n: skip default config (load modules inline — avoids system.pa parsing issues)
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# --system: run as system-wide daemon
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# --log-target=stderr: makes errors visible in Docker logs
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# &: background so this script continues; output still captured by Docker
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echo "Starting PulseAudio daemon..."
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pulseaudio --exit-idle-time=-1 -n --system \
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--load="module-native-protocol-unix socket=${PULSE_SOCKET} auth-anonymous=1" \
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--load="module-null-sink sink_name=drb_sink sink_properties=device.description=DRB-Sink" \
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--log-target=stderr &
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# Wait for the daemon to actually answer — NOT just for the socket file to
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# exist. A stale socket file from a killed daemon exists but nothing is
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# listening on it; a file-existence check reports "ready" against a dead
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# daemon, which is exactly how this class of bug slipped through before.
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echo "Waiting for PulseAudio to become live..."
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PULSE_LIVE=0
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for i in $(seq 1 20); do
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if pulse_daemon_alive; then
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echo "PulseAudio daemon is live (pactl info succeeded)."
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PULSE_LIVE=1
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break
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fi
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sleep 0.5
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done
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if [ "$PULSE_LIVE" -ne 1 ]; then
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echo "WARNING: PulseAudio daemon not responding after 10s — edge-node audio will fail until it recovers."
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fi
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ls -la /run/pulse/
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# --- Execute the main command (uvicorn) ---
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echo "Starting FastAPI application..."
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exec "$@"
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