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Docker is a platform to build Linux containers.

Installing Docker via XBPS

# xbps-install docker

Installing Docker Compose

Docker Compose is a tool to create and run multi-container Docker apps.

# xbps-install docker-compose

Starting the Docker daemon

Be sure to enable and start the service before trying to use it. If it is not enabled, it won't work.

# ln -s /etc/sv/docker /var/service/

For more documentation about using services, see for example runit.

Post Installation

Add your user to docker group

# sudo usermod -aG docker $USER

Command line interaction with Docker

For more information about Docker commands, please read the official documentation.


cgroups bug

Docker seems to require systemd cgroups to be mounted on /sys/fs/cgroup/systemd.

You may get the following error while running docker:

$ docker: Error response from daemon: cgroups: cannot found cgroup mount destination: unknown.

To fix the error, create the directory, and mount systemd cgroups there:

# mkdir /sys/fs/cgroup/systemd
# mount -t cgroup -o none,name=systemd cgroup /sys/fs/cgroup/systemd