Kernel Requirements
===================
If you want to have a full working CRUX+Docker system you will need to rebuild your kernel various networking, cgroups and optional lvm options
Please review the provided ``test_kernel_config.sh`` shell script carefully and use this to test your kernel configuration. This README does not document
what these specific options are to vaoid duplication. They are listed instead in ``test_kernel_config.sh``.
You may check your kernel configuration by running:
::
./test_kernel_config.sh /usr/src/linux/.config
Execution Engines
=================
As of Docker 0.9+ execution engines are pluggable and as such Docker no longer depends on lxc.
The new default execution driver is now an internal ``libcontainer`` driver that replaces the need for lxc.
Please see the `Docker Documentation <http://docs.docker.io>`_ if you want to use a different execution engine other then the default.
Storage Backends
================
Docker comes with three main Storage Backends:
- AUFS (*requires AUFS kernel/patches*)
- devmapper
- btrfs
It is recommended you use the devmapper or btrfs backend (Default: devmapper).
To use the ``btrfs`` backend edit ``/etc/docker.conf`` and modify the ``DOCKER_OPTS`` with:
::
DOCKER_OPTS="-s btrfs"
Docker Client
=============
Add yourself to the ``docker`` group if you wish to access the Docker daemon on localhost via UNIX Socker.
