My Mopidy Setup

This is the Docker image that I'm currently using to run Mopidy on a Raspberry Pi Zero with PhatDAC and a Pi 2 with an IQAudio Pi-DACZero.

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

The Mopidy version and all extensions to be installed are defined in requirements.txt.

I have music files in ~/music that I mount into the container.

Build

Build on PC

docker build --pull -t jjok/mopidy --build-arg BUILD_FROM=debian:stable-slim .

Build on Raspberry Pi

docker build --pull -t jjok/mopidy --build-arg BUILD_FROM=balenalib/raspberry-pi:latest .

Run

docker compose up -d

View logs:

docker logs -f 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 Raspberry PI OS to SD card (8GB+). Put SD card in Raspberry Pi.
2. Install Docker CE.
3. Copy files to the Pi.

• .dockerignore
• docker-compose.yml
• Dockerfile
• Makefile
• mopidy.conf
• requirements.txt

4. Run build command (takes around 30 minutes on Pi Zero)
5. Install soundcard (see below).
6. Run container
7. Reboot

Install PhatDAC

https://learn.pimoroni.com/tutorial/phat/raspberry-pi-phat-dac-install

Edit /boot/config.txt.

Remove this line:

dtparam=audio=on

Add this line:

dtoverlay=hifiberry-dac

You might need to do some other stuff too. I haven't tried this manually yet.

Install IQaudIO Pi-DACZero

https://github.com/iqaudio/UserDocs/blob/master/userguide.pdf

Edit /boot/config.txt.

Remove this line:

dtparam=audio=on

Add this line:

dtoverlay=iqaudio-dacplus

Mount music from USB

mkdir ~/usb
mkdir ~/music

Add these lines to /etc/fstab.

/dev/sda1                  /home/jonathan/usb    vfat   defaults         0   0
/home/jonathan/usb/music   /home/jonathan/music  none   defaults,rbind   0   0