My Mopidy Setup

This is the Docker image that I'm currently using to run Mopidy on a Raspberry Pi Zero with PhatDAC.

It probably won't be exactly the setup you want, but feel free to create a fork for your own setup.

Build:

docker build -t jjok/mopidy .
docker build -t jjok/mopidy -f Dockerfile.pi .

Run:

docker run -it --rm --device /dev/snd --name mopidy -p 6600:6600 -p 6680:6680 jjok/mopidy

Run in background:

docker run -d --restart=unless-stopped --device /dev/snd --name mopidy -p 6600:6600 -p 6680:6680 jjok/mopidy

View logs:

docker logs mopidy

Execute any Mopidy command:

docker exec mopidy mopidy <cmd>
docker exec mopidy mopidy config
docker exec mopidy mopidy deps

Raspberry PI Setup

1. Burn Raspbian to SD card (8GB+). A 2GB SD card will not be big enough for both Raspbian and the Docker image.
2. Put SD card in Raspberry Pi 2 (or 3). A Pi Zero does not have enough RAM to build the Docker image.
3. Install Docker CE. This is nice and easy these days. Just download as .sh file and run it. Actually, Docker > 17 doesn't seem to work on a Pi Zero. sudo apt install docker-ce=17.12.1~ce-0~raspbian sudo apt-mark hold docker-ce
4. Copy Dockerfile.pi, requirements.txt and mopidy.conf to the Pi.
5. Run build command (takes around 45 minutes on Pi 2)
6. Put SD card in Pi Zero
7. Run "Run in background" command
8. Install soundcard (PhatDAC) https://learn.pimoroni.com/tutorial/phat/raspberry-pi-phat-dac-install
9. Reboot