spotifyMyPi builds a Docker image of Spotifyd from source, pulled from the master branch. The base image is now based on Alpine Linux.
git clone https://github.com/dbyio/spotifyMyPi
cd spotifyMyPi
chmod +x do.sh
sudo ./do.sh build
If you're satisfied with the result, you'll want to remove the intermediary build image, which can grow rather extensively.
sudo docker image prune
Copy then edit conf/spotifyd.conf in /opt/spotifyd/etc. You'll need to set your Spotify Premium accounts details, as well as your sound card Alsa identifier.
**Alignment of the audio GUID
If you're running Docker on a debian-based system (typically Raspbian), you'll need to align the GUID of the audio group on your host system with Alpine's. On your host system, run sudo vigr and change the GUID for audio to 18. Failing to do so will result in the service not being able to access the soundcard device.
$ grep audio /etc/group
audio:x:18:
Option 1:
sudo ./do.sh run
Option 2: run with systemd
sudo cp conf/spotifyd.service /etc/systemd/system/
sudo systemctl daemon-reload
sudo systemctl enable spotifyd
sudo systemctl start spotifyd
The following command will rebuild a new image using updated source code and base image.
sudo ./do.sh update
If you want the Spotifyd container to start/stop when you switch on/off your external USB DAC, use systemd to bind the service to the relevant device unit.
Use the following command to identify the device unit related to your DAC:
sudo systemctl list-units --type=device
Edit the Unit and Install sections of the spotifyd.service file as follows:
[Unit]
BindsTo=docker.service [your DAC's device unit name here]
After=docker.service [your DAC's device unit name here]
StopWhenUnneeded=true
[...]
[Install]
WantedBy=multi-user.target [your DAC's device unit name here]
Please note that modifying the Install section of an existing unit file will require re-enabling the unit, not just daemon-reloading systemd.
The spotifyd container should now be started when your DAC is powered on, stopped when powered off.