mirror of
https://github.com/migatu/conjurer.git
synced 2026-07-14 21:38:38 +00:00
Michal Tuszowski
fcb03e304c
Per review of the first radio-container cut:
- radio_conjurer.liq: replace the cargo-culted /home/pi/Conjurer and
/home/pi/MediaFolder paths with the container layout -
/srv/betoniarka/data (playlists, script.params, persistence/radio logs),
/srv/betoniarka/music (library + emergency track) and
/srv/betoniarka/secrets/icecast_credentials.json;
interactive.persistent now uses an absolute path;
output.icecast targets host="localhost" (icecast lives in the container)
- Icecast2 now runs INSIDE the radio container: entrypoint renders
/etc/icecast2/icecast.xml from docker/icecast.xml.tpl, filling
source/admin/relay passwords from the secret provisioned at install time
(same pattern as the bot's netrc); optional admin_password/relay_password
fields default to password; icecast starts as its unprivileged user;
port 8000 exposed for listeners; extra_hosts hack removed
- compose.radio.yaml: same-path mounts for /srv/betoniarka/{data,music,secrets}
- ffmpeg.pref removed from the repo (the pin only mattered against the
RPi OS repo; bookworm ships the right FFmpeg 5.x natively) - verdict
preserved in the docs and the legacy installer note updated
- docs: updated radio section (volumes, secret provisioning, wire-up)
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
89 lines
3.9 KiB
Bash
Executable File
89 lines
3.9 KiB
Bash
Executable File
#!/bin/sh
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# Prepare the radio volumes, start the in-container Icecast server, wire up
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# PulseAudio and exec liquidsoap. Existing files are never overwritten -
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# live-edited script/params/playlists always win.
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set -e
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DATA="${RADIO_DATA_DIR:-/srv/betoniarka/data}"
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MUSIC="${RADIO_MUSIC_DIR:-/srv/betoniarka/music}"
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SECRETS="${RADIO_SECRETS_DIR:-/srv/betoniarka/secrets}"
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CREDS="$SECRETS/icecast_credentials.json"
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mkdir -p "$DATA" "$MUSIC" "$SECRETS"
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# Seed the script + persistent interactive params from the image on first run.
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[ -e "$DATA/radio_conjurer.liq" ] || cp /app/radio_conjurer.liq "$DATA/"
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if [ ! -e "$DATA/script.params" ]; then
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if [ -e /app/script.params ]; then cp /app/script.params "$DATA/"; else : > "$DATA/script.params"; fi
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fi
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# Playlists + logs the script watches/writes; empty files keep it happy until
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# the musician/betoniarka populate them.
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for f in all_playlist.playlist priority_queue.playlist hit.playlist \
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request.playlist jingles.playlist persistence.log; do
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[ -e "$DATA/$f" ] || : > "$DATA/$f"
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done
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# The icecast secret is provisioned at install time, like the other services'
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# secrets (bot: /srv/conjurer/secrets/.netrc). A placeholder keeps the stack
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# bootable, but both icecast and the stream stay locked until you fix it.
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if [ ! -e "$CREDS" ]; then
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printf '{\n"password" : "CHANGE_ME"\n}\n' > "$CREDS"
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echo "WARNING: $CREDS was missing - seeded a CHANGE_ME placeholder." >&2
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echo " Put the real password there (see docs) and restart." >&2
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fi
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# Render /etc/icecast2/icecast.xml from the template with passwords from the
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# secret. Optional fields admin_password/relay_password default to password.
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SOURCE_PW=$(jq -r '.password' "$CREDS")
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ADMIN_PW=$(jq -r '.admin_password // .password' "$CREDS")
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RELAY_PW=$(jq -r '.relay_password // .password' "$CREDS")
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ICECAST_HOSTNAME="${ICECAST_HOSTNAME:-localhost}"
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sed -e "s|__SOURCE_PASSWORD__|$SOURCE_PW|" \
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-e "s|__ADMIN_PASSWORD__|$ADMIN_PW|" \
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-e "s|__RELAY_PASSWORD__|$RELAY_PW|" \
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-e "s|__HOSTNAME__|$ICECAST_HOSTNAME|" \
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/app/icecast.xml.tpl > /etc/icecast2/icecast.xml
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chown icecast2:icecast /etc/icecast2/icecast.xml 2>/dev/null || true
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chmod 640 /etc/icecast2/icecast.xml
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# Start Icecast in the background as its unprivileged user.
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mkdir -p /var/log/icecast2 && chown -R icecast2:icecast /var/log/icecast2
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su -s /bin/sh icecast2 -c "icecast2 -b -c /etc/icecast2/icecast.xml" \
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|| echo "WARNING: icecast2 failed to start - the stream output will retry" >&2
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# single() aborts the whole script when its file is missing; guarantee the
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# emergency fallback exists (5s of silence beats a dead radio).
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EMERGENCY="$MUSIC/Youtube/Dr. Peacock - Trip to Ireland [GvrvQTUbUcA].mp3"
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if [ ! -e "$EMERGENCY" ]; then
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mkdir -p "$MUSIC/Youtube"
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if ffmpeg -loglevel error -f lavfi -i anullsrc=r=44100:cl=stereo -t 5 \
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-codec:a libmp3lame -q:a 9 "$EMERGENCY"; then
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echo "WARNING: emergency track was missing - generated silent placeholder" >&2
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else
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echo "WARNING: could not create emergency track; single() may abort" >&2
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fi
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fi
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# PulseAudio wiring:
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# internal (default) - system-wide pulse inside the container with a null
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# sink (see /etc/pulse/system.pa); no sound hardware
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# needed, mic path reads silence.
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# host - use a socket mounted from the host; set PULSE_SERVER
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# (e.g. unix:/tmp/pulseaudio.socket) in the env file.
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# none - you edited the script to drop pulse in/out.
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case "${PULSE_MODE:-internal}" in
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internal)
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pulseaudio --system --daemonize=yes --disallow-exit --exit-idle-time=-1 \
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|| echo "WARNING: internal pulseaudio failed to start" >&2
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export PULSE_SERVER="${PULSE_SERVER:-unix:/var/run/pulse/native}"
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;;
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host)
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[ -n "$PULSE_SERVER" ] || echo "WARNING: PULSE_MODE=host but PULSE_SERVER is unset" >&2
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;;
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none)
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;;
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esac
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cd "$DATA"
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exec "$@"
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