shairport-sync/docker

Shairport Sync Docker Image

Available at: https://hub.docker.com/r/mikebrady/shairport-sync

Shairport Sync provides limited AirPlay 2 functionality. Versions with tags including -classic only provide classic AirPlay (aka "AirPlay 1"), the same as Shairport Sync versions up to 3.3.9.

Tags

• latest and latest-classic are images of the most recent releases. These should be the most stable and updated only when a new release is made.
• rolling and rolling-classic are images of the latest updates in the master branch that have not yet been incorporated in a release. These may be updated frequently but should be stable.
• development and development-classic are images of the latest pushes to the development branch. These will be less stable and may be actually faulty. They will be updated frequently.
• Version Tags, e.g. 4.1 are images of specific releases.

Example Docker Compose File

See the docker-compose.yaml file in this folder for an example.

Docker Run

To run the latest release of Shairport Sync, which provides AirPlay 2 service:

$ docker run -d --restart unless-stopped --net host --device /dev/snd \
    mikebrady/shairport-sync:latest

To run the classic version:

$ docker run -d --restart unless-stopped --net host --device /dev/snd \
    mikebrady/shairport-sync:latest-classic

Options

Command line options will be passed to Shairport Sync. Here is an example:

$ docker run -d --restart unless-stopped --net host --device /dev/snd \
    mikebrady/shairport-sync:latest \
    -v --statistics -a DenSystem -d hw:0 -c PCM

This will send audio to alsa hardware device hw:0 and make use of the that device's mixer control called PCM. The service will be visible as DenSystem on the network.

The image is built with PulseAudio backend support. To use it, refer to docker-compose.yaml for required environment variables and mounts. You might need to adjust authentication on your PulseAudio server (PA documentation) and set default backend to pa via either command line option -o or general.output_backend field in config file.

Configuration File

To get access to the full range of configuration options, pass the configuration file to /etc/shairport-sync.conf in the container using the -v option or docker compose.

Environment variables

Set IPV4ONLY to any value to force NQPTP to use IPv4 (might be useful on hosts not running IPv6):

$ docker run --env IPV4ONLY=yes -d --restart unless-stopped --net host --device /dev/snd \
    mikebrady/shairport-sync:latest \
    -v --statistics -a DenSystem -d hw:0 -c PCM

Building

Build Example (for arm7 devices)

docker buildx build --platform linux/arm/v7 -f ./docker/Dockerfile --build-arg SHAIRPORT_SYNC_BRANCH=development --build-arg NQPTP_BRANCH=development --no-cache -t shairport-sync:development .

SHAIRPORT_SYNC_BRANCH and NQPTP_BRANCH are required to ensure the image is built using the expected branch. --no-cache needs to be used to force buildx to pull the NQPTP branch for new updates. This slows down the build time though so can be removed when it is not beneficial during testing.

"Classic" AirPlay

The "Classic" AirPlay only dockerfile is in the classic folder. This also includes the start.sh script used by the container.

GitHub Action Builds

Requires the following secrets to be set in the repo:

• DOCKER_REGISTRY - docker.io if using Docker Hub, else set to your registry URL.
• DOCKER_REGISTRY_TOKEN - Access token for your registry.
• DOCKER_REGISTRY_USER - Login user for your registry.
• DOCKER_IMAGE_NAME - The name of the image, for example your-registry.com/shairport-sync or just your-username/shairport-sync if using Docker Hub.