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Reformat Gentoo install instructions to 80 columns

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Tianon Gravi 2013-09-05 13:36:16 -06:00
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47
docs/sources/installation/gentoolinux.rst
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@ -11,7 +11,10 @@ Gentoo Linux
.. include:: install_unofficial.inc
Installing Docker on Gentoo Linux can be accomplished by using the overlay provided at https://github.com/tianon/docker-overlay. The most up-to-date documentation for properly installing the overlay can be found in the overlay README. The information here is provided for reference, and may be out of date.
Installing Docker on Gentoo Linux can be accomplished by using the overlay
provided at https://github.com/tianon/docker-overlay. The most up-to-date
documentation for properly installing the overlay can be found in the overlay
README. The information here is provided for reference, and may be out of date.
Installation
^^^^^^^^^^^^
@ -22,30 +25,49 @@ Ensure that layman is installed:
sudo emerge -av app-portage/layman
Using your favorite editor, add ``https://raw.github.com/tianon/docker-overlay/master/repositories.xml`` to the ``overlays`` section in ``/etc/layman/layman.cfg`` (as per instructions on the `Gentoo Wiki <http://wiki.gentoo.org/wiki/Layman#Adding_custom_overlays>`_), then invoke the following:
Using your favorite editor, add
``https://raw.github.com/tianon/docker-overlay/master/repositories.xml`` to the
``overlays`` section in ``/etc/layman/layman.cfg`` (as per instructions on the
`Gentoo Wiki <http://wiki.gentoo.org/wiki/Layman#Adding_custom_overlays>`_),
then invoke the following:
.. code-block:: bash
sudo layman -f -a docker
Once that completes, the ``app-emulation/lxc-docker`` package will be available for emerge:
Once that completes, the ``app-emulation/lxc-docker`` package will be available
for emerge:
.. code-block:: bash
sudo emerge -av app-emulation/lxc-docker
If you prefer to use the official binaries, or just do not wish to compile docker, emerge ``app-emulation/lxc-docker-bin`` instead. It is important to remember that Gentoo is still an unsupported platform, even when using the official binaries.
If you prefer to use the official binaries, or just do not wish to compile
docker, emerge ``app-emulation/lxc-docker-bin`` instead. It is important to
remember that Gentoo is still an unsupported platform, even when using the
official binaries.
The package should already include all the necessary dependencies. For the simplest installation experience, use ``sys-kernel/aufs-sources`` directly as your kernel sources. If you prefer not to use ``sys-kernel/aufs-sources``, the portage tree also contains ``sys-fs/aufs3``, which contains the patches necessary for adding AUFS support to other kernel source packages (and a ``kernel-patch`` use flag to perform the patching automatically).
The package should already include all the necessary dependencies. For the
simplest installation experience, use ``sys-kernel/aufs-sources`` directly as
your kernel sources. If you prefer not to use ``sys-kernel/aufs-sources``, the
portage tree also contains ``sys-fs/aufs3``, which contains the patches
necessary for adding AUFS support to other kernel source packages (and a
``kernel-patch`` use flag to perform the patching automatically).
Between ``app-emulation/lxc`` and ``app-emulation/lxc-docker``, all the necessary kernel configuration flags should be checked for and warned about in the standard manner.
Between ``app-emulation/lxc`` and ``app-emulation/lxc-docker``, all the
necessary kernel configuration flags should be checked for and warned about in
the standard manner.
If any issues arise from this ebuild or the resulting binary, including and especially missing kernel configuration flags and/or dependencies, `open an issue <https://github.com/tianon/docker-overlay/issues>`_ on the docker-overlay repository or ping tianon in the #docker IRC channel.
If any issues arise from this ebuild or the resulting binary, including and
especially missing kernel configuration flags and/or dependencies, `open an
issue <https://github.com/tianon/docker-overlay/issues>`_ on the docker-overlay
repository or ping tianon in the #docker IRC channel.
Starting Docker
^^^^^^^^^^^^^^^
Ensure that you are running a kernel that includes the necessary AUFS support and includes all the necessary modules and/or configuration for LXC.
Ensure that you are running a kernel that includes the necessary AUFS support
and includes all the necessary modules and/or configuration for LXC.
OpenRC
------
@ -80,7 +102,8 @@ To start on system boot:
Network Configuration
^^^^^^^^^^^^^^^^^^^^^
IPv4 packet forwarding is disabled by default, so internet access from inside the container will not work unless ``net.ipv4.ip_forward`` is enabled:
IPv4 packet forwarding is disabled by default, so internet access from inside
the container will not work unless ``net.ipv4.ip_forward`` is enabled:
.. code-block:: bash
@ -95,4 +118,8 @@ Or, to enable it more permanently:
fork/exec /usr/sbin/lxc-start: operation not permitted
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Unfortunately, Gentoo suffers from `issue #1422 <https://github.com/dotcloud/docker/issues/1422>`_, meaning that after every fresh start of docker, the first docker run fails due to some tricky terminal issues, so be sure to run something trivial (such as ``docker run -i -t busybox echo hi``) before attempting to run anything important.
Unfortunately, Gentoo suffers from `issue #1422
<https://github.com/dotcloud/docker/issues/1422>`_, meaning that after every
fresh start of docker, the first docker run fails due to some tricky terminal
issues, so be sure to run something trivial (such as ``docker run -i -t busybox
echo hi``) before attempting to run anything important.