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Rc-update add docker boot service docker start Note: On older version of Alpine Linux with older version of docker you'll also need to disable some kernel security flags in order to build images: sysctl -w kernel.grsecurity.chrootdenychmod=0 sysctl -w kernel.grsecurity.chrootdenymknod=0. In short, the gitlab-runner part of the command is replaced with docker run docker options gitlab/gitlab-runner, while the rest of the command stays as it is described in the register documentation. The only difference is that the gitlab-runner command is executed inside of a Docker container. Install the Docker image and start the container. If you're using TeamCity with an Enterprise Server License, or have previously purchased additional Build Agents and entered the corresponding license keys in TeamCity, you'll have to have a valid (non-expired) Upgrade Subscription in order to upgrade to version 2019.1.

1Installation
4'WARNING: No {swap,memory} limit support'

Installation

The Docker package is in the 'Community' repository. See Alpine_Linux_package_management how to add a repository.

Connecting to the Docker daemon through its socket requires you to add yourself to the `docker` group.

To start the Docker daemon at boot, see Alpine_Linux_Init_System.

Note: On older version of Alpine Linux with older version of docker you'll also need to disable some kernel security flags in order to build images:

For more information, have a look at the corresponding Github issue.

Anyway, this weakening of security is not necessary to do with Alpine 3.4.x and Docker 1.12 as of August 2016 anymore.

Docker Compose

'docker-compose' is in 'Community' repository since Alpine Linux >= 3.10.

For older releases, do:

To install docker-compose, first install pip:

Isolate containers with a user namespace

and add in /etc/docker/daemon.json

You may also consider these options : '

You will find all possible configurations here[1].

Example: How to install docker from Arch

'WARNING: No {swap,memory} limit support'

You may, probably, encounter this message by executing docker info.To correct this situation we have to enable the cgroup_enable=memory swapaccount=1

Alpine 3.8

Well I'm not sure it wasn't the case before but for sure with Alpine 3.8 you must config cgroups properly

Warning: This seems not to work with Alpine 3.9 and Docker 18.06. Follow the instructions for grub or extlinux below instead.

Grub

Well; if you use Grub it is like any other linux and you just have to add the cgroup condition into /etc/default/grub, then upgrade your grub

Extlinux

With Extlinux you also add the cgroup condition but inside /etc/update-extlinux.conf

than update the config and reboot

update-extlinux

How to use docker