snapclient-docker

Alpine based Docker image for running the snapclient part of snapcast. This is the counterpart to https://github.com/yubiuser/librespot-shairport-snapserver

Note: Current last commit of the development branche is used to compile the lastest versions.

Getting started

Images for amd64 can be found at ghcr.io/yubiuser/snapclient-docker.

Use with

docker pull ghcr.io/yubiuser/snapclient-docker
docker run -d --rm --net host --device /dev/snd --name snapclient snapclient-docker

or with docker-compose.yml

version: "3"
services:
  snapclient:
    image: ghcr.io/yubiuser/snapclient-docker
    container_name: snapclient
    restart: unless-stopped
    network_mode: host
    environment:
        - ARG=--player file:filename=null
    devices:
        - "/dev/snd:/dev/snd"

Build locally

To build the image simply run

docker build -t snapclient-docker:local -f ./alpine.dockerfile .

Start the container with

docker run -d --rm --net host --device /dev/snd --name snapclient snapclient-docker:local

Passing Arguments

To pass command line arguments to snapclient (for a list of possible arguemtens, see here) set -e ARG="xy" within the docker call or specify them within the compose.yml For example

docker run -d --rm --net host --device /dev/snd \
-e ARG="--player alsa" --name snapclient snapclient-docker:local`

Notes

• Based on current Alpine version 3:20
• Final image size is ~27 MB
• The make calles use the option -j $(( $(nproc) -1 )) to leave one CPU for normal operation
• s6-overlay is used as init system
  • s6-rc with configured dependencies is used to start all services. snapclient should start as last