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moby--moby/docs/installation/gentoolinux.md
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Signed-off-by: Mary Anthony <mary@docker.com>
2015-06-15 13:19:38 -07:00

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Gentoo

Installing Docker on Gentoo Linux can be accomplished using one of two ways: the official way and the docker-overlay way.

Official project page of Gentoo Docker team.

Official way

The first and recommended way if you are looking for a stable
experience is to use the official app-emulation/docker package directly
from the tree.

If any issues arise from this ebuild including, missing kernel configuration flags or dependencies, open a bug on the Gentoo Bugzilla assigned to docker AT gentoo DOT org or join and ask in the official IRC channel on the Freenode network.

docker-overlay way

If you're looking for a -bin ebuild, a live ebuild, or a bleeding edge ebuild, use the provided overlay, docker-overlay which can be added using app-portage/layman. The most accurate and up-to-date documentation for properly installing and using the overlay can be found in the overlay.

If any issues arise from this ebuild or the resulting binary, including and especially missing kernel configuration flags or dependencies, open an issue on the docker-overlay repository or ping tianon directly in the #docker IRC channel on the Freenode network.

Installation

Available USE flags

USE Flag Default Description
aufs Enables dependencies for the "aufs" graph driver, including necessary kernel flags.
btrfs Enables dependencies for the "btrfs" graph driver, including necessary kernel flags.
contrib Yes Install additional contributed scripts and components.
device-mapper Yes Enables dependencies for the "devicemapper" graph driver, including necessary kernel flags.
doc Add extra documentation (API, Javadoc, etc). It is recommended to enable per package instead of globally.
lxc Enables dependencies for the "lxc" execution driver.
vim-syntax Pulls in related vim syntax scripts.
zsh-completion Enable zsh completion support.

USE flags are described in detail on tianon's blog.

The package should properly pull in all the necessary dependencies and prompt for all necessary kernel options.

$ sudo emerge -av app-emulation/docker

Note: Sometimes there is a disparity between the latest versions in the official Gentoo tree and the docker-overlay.
Please be patient, and the latest version should propagate shortly.

Starting Docker

Ensure that you are running a kernel that includes all the necessary modules and configuration (and optionally for device-mapper and AUFS or Btrfs, depending on the storage driver you've decided to use).

To use Docker, the docker daemon must be running as root.
To use Docker as a non-root user, add yourself to the docker group by running the following command:

$ sudo usermod -a -G docker user

OpenRC

To start the docker daemon:

$ sudo /etc/init.d/docker start

To start on system boot:

$ sudo rc-update add docker default

systemd

To start the docker daemon:

$ sudo systemctl start docker

To start on system boot:

$ sudo systemctl enable docker

If you need to add an HTTP Proxy, set a different directory or partition for the Docker runtime files, or make other customizations, read our systemd article to learn how to customize your systemd Docker daemon options.

Uninstallation

To uninstall the Docker package:

$ sudo emerge -cav app-emulation/docker

To uninstall the Docker package and dependencies that are no longer needed:

$ sudo emerge -C app-emulation/docker

The above commands will not remove images, containers, volumes, or user created configuration files on your host. If you wish to delete all images, containers, and volumes run the following command:

$ rm -rf /var/lib/docker

You must delete the user created configuration files manually.