Spotify Daemon in Docker

Alsa	Alsa dbus	Pulseaudio	Pulseaudio dbus

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Spotifyd within a docker container for ARM (armv7/arm64) and x32/x64 architectures in configuration variants alsa/pulseaudio for audio-backend and with/without D-Bus API for controlling spotifyd through generic media players.

Insights

According to my subjective experience and available hardware, dbus in the alsa variant is better as it uses a software controller which appears to increase volume linearly. On the other hand the volume control with pure alsa renders anything below 60% practically unhearable and anything above 80% too loud. I haven't tested the pulseaudio version yet. Let me know if you have some feedback.

How to run the alsa variant

docker run -d --net host --group-add $(getent group audio | cut -d: -f3) --device /dev/snd:/dev/snd -v /usr/share/alsa:/usr/share/alsa -v $PWD/contrib/spotifyd.conf:/etc/spotifyd.conf hvalev/spotifyd-XXX

where you need to replace XXX with the appropriate image tag in https://hub.docker.com/u/hvalev. or with docker-compose:

services:
  spotifyd:
    container_name: spotify
    restart: always
    image: hvalev/spotifyd-XXX
    network_mode: host
    devices:
      - /dev/snd:/dev/snd
    volumes:
      - /usr/share/alsa:/usr/share/alsa
      - /etc/spotifyd/spotifyd.conf:/etc/spotifyd.conf
      - /etc/asound.conf:/etc/asound.conf
    group_add:
      - ${AUDIO_GRP}

If you're running this on a raspberry-pi, you can replace ${AUDIO_GRP} with 29 as that is the id of the audiogroup user. If not, simply type id in the terminal and enter whatever number shows next to (audio).

How to run the pulseaudio variant

services:
  spotify:
    container_name: spotify
    restart: always
    image: hvalev/spotifyd-pulseaudio
    user: ${PUID}:${PGID}
    #network_mode: host #disabling to only show logged in user in spotify app (if you run multiple containers at once with different user logins)
    devices:
      - /dev/snd:/dev/snd
    group_add:
      - ${AUDIO_GRP}
    environment: 
      - PULSE_SERVER=unix:/tmp/pulseaudio.socket
      - PULSE_COOKIE=/tmp/pulseaudio.cookie
    volumes:
      - /run/user/1000/pulse/native:/tmp/pulseaudio.socket
      - ${USERDIR}/docker/spotifyd/spotifyd.conf:/etc/spotifyd.conf

How to build it

Grab the dockerfile with the configuration you wish to build and remove --platform=$BUILDPLATFORM from the first image. Since a single Dockerfile is used for all images, you also need to add --target alsa-dbus-release or another flavor to build along with your build command.

Information

At the moment the rust-fix intermediary build image exists as a workaround to this bug.

Limitations

Spotifyd requires a Spotify Premium account.

Acknowledgements

Naturally, all credit goes to spotifyd. The instructions, dockerfile and explanation at GnaphronG/docker-spotifyd constitute a major portion of the contents in this repository.