Files
Busch-Radio-Spotify/busch_radio_spotify/run.sh
retr0 52a803f545 Fix: Icecast läuft nicht als root (changeowner nobody)
Icecast verweigert den Start als root. Lösung:
- changeowner-Direktive in icecast.xml: wechselt zu nobody nach Start
- Log- und Run-Verzeichnisse gehören nobody für Schreibzugriff

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-06 16:35:48 +02:00

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#!/usr/bin/with-contenv bashio
# ==============================================================================
# Busch-Radio Spotify Bridge Startup-Script
#
# Startet:
# 1. Icecast2 HTTP-Stream-Server
# 2. librespot Virtueller Spotify Connect-Empfänger (gibt PCM auf stdout aus)
# 3. ffmpeg Kodiert PCM → MP3 und schickt es als Icecast-Quelle
#
# Bei Absturz wird die komplette Pipeline nach 5 Sekunden neu gestartet.
# ==============================================================================
set -u
# ── Konfiguration lesen ───────────────────────────────────────────────────────
DEVICE_NAME=$(bashio::config 'device_name')
BITRATE=$(bashio::config 'bitrate')
STREAM_PORT=$(bashio::config 'stream_port')
STREAM_MOUNT=$(bashio::config 'stream_mount')
ICECAST_PASSWORD=$(bashio::config 'icecast_password')
bashio::log.info "╔══════════════════════════════════════════════╗"
bashio::log.info "║ Busch-Radio Spotify Bridge v1.0.0 ║"
bashio::log.info "╚══════════════════════════════════════════════╝"
bashio::log.info "Gerätename : ${DEVICE_NAME}"
bashio::log.info "Bitrate : ${BITRATE} kbps"
bashio::log.info "Stream-Port : ${STREAM_PORT}"
bashio::log.info "Stream-Pfad : ${STREAM_MOUNT}"
# ── Verzeichnisse anlegen + Berechtigungen für nobody-User setzen ────────────
# Icecast läuft im Container als root, wechselt aber via changeowner zu nobody.
mkdir -p /var/log/icecast /run/icecast /tmp/busch-radio
chown -R nobody:nobody /var/log/icecast /run/icecast /tmp/busch-radio
# ── Icecast-Webroot ermitteln ─────────────────────────────────────────────────
# Alpine und Debian legen Icecast in unterschiedliche Pfade
ICECAST_WEBROOT=""
for candidate in /usr/share/icecast /usr/share/icecast2; do
if [ -d "$candidate" ]; then
ICECAST_WEBROOT="$candidate"
break
fi
done
if [ -z "$ICECAST_WEBROOT" ]; then
bashio::log.warning "Icecast-Webroot nicht gefunden, verwende /usr/share/icecast"
ICECAST_WEBROOT="/usr/share/icecast"
mkdir -p "${ICECAST_WEBROOT}/web" "${ICECAST_WEBROOT}/admin"
fi
bashio::log.debug "Icecast-Webroot: ${ICECAST_WEBROOT}"
# ── Icecast-Konfiguration generieren ─────────────────────────────────────────
bashio::log.info "Icecast-Konfiguration wird erstellt..."
cat > /tmp/busch-radio/icecast.xml <<ICECAST_EOF
<icecast>
<location>Home Assistant</location>
<admin>admin@localhost</admin>
<limits>
<clients>10</clients>
<sources>2</sources>
<queue-size>524288</queue-size>
<client-timeout>30</client-timeout>
<header-timeout>15</header-timeout>
<source-timeout>10</source-timeout>
<burst-on-connect>0</burst-on-connect>
<burst-size>65536</burst-size>
</limits>
<authentication>
<source-password>${ICECAST_PASSWORD}</source-password>
<relay-password>${ICECAST_PASSWORD}</relay-password>
<admin-user>admin</admin-user>
<admin-password>${ICECAST_PASSWORD}</admin-password>
</authentication>
<hostname>0.0.0.0</hostname>
<listen-socket>
<port>${STREAM_PORT}</port>
</listen-socket>
<mount>
<mount-name>${STREAM_MOUNT}</mount-name>
<public>0</public>
<stream-name>Busch-Radio Spotify Bridge</stream-name>
<stream-description>Spotify via Home Assistant</stream-description>
<bitrate>${BITRATE}</bitrate>
<type>audio/mpeg</type>
</mount>
<fileserve>1</fileserve>
<paths>
<basedir>${ICECAST_WEBROOT}</basedir>
<logdir>/var/log/icecast</logdir>
<webroot>${ICECAST_WEBROOT}/web</webroot>
<adminroot>${ICECAST_WEBROOT}/admin</adminroot>
<pidfile>/run/icecast/icecast.pid</pidfile>
</paths>
<logging>
<!-- "-" loggt auf stderr → wird von HA erfasst -->
<accesslog>-</accesslog>
<errorlog>-</errorlog>
<loglevel>2</loglevel>
<logsize>10000</logsize>
</logging>
<security>
<chroot>0</chroot>
<!-- Icecast wechselt nach dem Start zu nobody verhindert den root-Fehler -->
<changeowner>
<user>nobody</user>
<group>nobody</group>
</changeowner>
</security>
</icecast>
ICECAST_EOF
# ── Icecast starten ───────────────────────────────────────────────────────────
bashio::log.info "Icecast wird gestartet (Port: ${STREAM_PORT})..."
icecast -c /tmp/busch-radio/icecast.xml &
ICECAST_PID=$!
# Kurz warten bis Icecast hochgefahren ist
sleep 3
if ! kill -0 "${ICECAST_PID}" 2>/dev/null; then
bashio::log.fatal "Icecast konnte nicht gestartet werden! Prüfe die Konfiguration."
exit 1
fi
bashio::log.info "Icecast läuft (PID: ${ICECAST_PID})"
# ── Librespot-Argumente zusammenstellen ───────────────────────────────────────
LIBRESPOT_ARGS=(
"--name" "${DEVICE_NAME}"
"--bitrate" "${BITRATE}"
"--backend" "pipe"
"--disable-audio-cache"
"--initial-volume" "100"
)
# Optionale Spotify-Zugangsdaten
SP_USER=$(bashio::config 'username')
SP_PASS=$(bashio::config 'password')
if [ -n "${SP_USER}" ]; then
LIBRESPOT_ARGS+=("--username" "${SP_USER}")
bashio::log.info "Spotify-Konto: ${SP_USER}"
else
bashio::log.info "Kein Spotify-Konto konfiguriert (Zeroconf/mDNS-Erkennung aktiv)"
fi
if [ -n "${SP_PASS}" ]; then
LIBRESPOT_ARGS+=("--password" "${SP_PASS}")
fi
# ── Icecast-Source-URL ────────────────────────────────────────────────────────
ICECAST_SOURCE_URL="icecast://source:${ICECAST_PASSWORD}@localhost:${STREAM_PORT}${STREAM_MOUNT}"
# ── Stream-URL ausgeben ───────────────────────────────────────────────────────
bashio::log.info "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
bashio::log.info "Stream-URL für das Busch-Jäger Radio:"
bashio::log.info " http://<homeassistant-ip>:${STREAM_PORT}${STREAM_MOUNT}"
bashio::log.info ""
bashio::log.info "Icecast-Statusseite:"
bashio::log.info " http://<homeassistant-ip>:${STREAM_PORT}"
bashio::log.info "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
bashio::log.info "Wähle '${DEVICE_NAME}' in der Spotify-App als Abspielgerät."
bashio::log.info "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
# ── Aufräumen bei SIGTERM ─────────────────────────────────────────────────────
cleanup() {
bashio::log.info "Add-on wird beendet..."
kill "${ICECAST_PID}" 2>/dev/null || true
exit 0
}
trap cleanup SIGTERM SIGINT
# ── Haupt-Schleife: Pipeline starten und bei Absturz neu starten ──────────────
#
# Signalfluss:
# librespot (Spotify Connect) → stdout (raw PCM 44100Hz/S16LE/Stereo)
# ↓
# ffmpeg (PCM → MP3 Encoding) → Icecast (HTTP-Stream)
# ↓
# Busch-Jäger Radio (HTTP-Client)
#
# Wenn entweder librespot oder ffmpeg abstürzt, wird die komplette Pipeline
# nach RESTART_DELAY Sekunden neu gestartet.
RESTART_DELAY=5
ATTEMPT=0
while true; do
ATTEMPT=$((ATTEMPT + 1))
bashio::log.info "Pipeline-Start (Versuch ${ATTEMPT})..."
librespot "${LIBRESPOT_ARGS[@]}" \
| ffmpeg \
-hide_banner \
-loglevel warning \
-f s16le -ar 44100 -ac 2 \
-i pipe:0 \
-codec:a libmp3lame \
-b:a "${BITRATE}k" \
-q:a 2 \
-f mp3 \
"${ICECAST_SOURCE_URL}" \
|| true
bashio::log.warning "Pipeline beendet. Neustart in ${RESTART_DELAY}s..."
sleep "${RESTART_DELAY}"
done