82 lines
1.6 KiB
Plaintext
82 lines
1.6 KiB
Plaintext
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Kernel Requirements
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===================
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If you want to have a full working CRUX+Docker system you will need to rebuild your kernel with the following options enabled:
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Networking:
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- CONFIG_BRIDGE
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- CONFIG_NETFILTER_XT_MATCH_ADDRTYPE
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- CONFIG_NF_NAT
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- CONFIG_NF_NAT_IPV4
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- CONFIG_NF_NAT_NEEDED
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LVM:
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- CONFIG_BLK_DEV_DM
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- CONFIG_DM_THIN_PROVISIONING
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- CONFIG_EXT4_FS
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Namespaces:
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- CONFIG_NAMESPACES
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- CONFIG_UTS_NS
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- CONFIG_IPC_NS
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- CONFIG_UID_NS
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- CONFIG_PID_NS
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- CONFIG_NET_NS
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Cgroups:
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- CONFIG_CGROUPS
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Cgroups Controllers (*optional but highly recommended*):
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- CONFIG_CGROUP_CPUACCT
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- CONFIG_BLK_CGROUP
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- CONFIG_MEMCG
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- CONFIG_MEMCG_SWAP
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You may check your kernel configuration by running the provided ``test_kernel_config.sh`` script against your kernel configuration:
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::
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./test_kernel_config.sh /usr/src/linux/.config
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Other Requirements
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==================
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You **must** have the following ``cgroup`` mount point mounted:
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::
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none /cgroup cgroup defaults 0 0
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Storage Backends
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================
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Docker comes with three main Storage Backends:
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- AUFS (*requires AUFS kernel/patches*)
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- devmapper
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- btrfs
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It is recommended you use the devmapper or btrfs backend (Default: devmapper).
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To use the ``btrfs`` backend edit ``/etc/docker.conf`` and modify the ``DOCKER_OPTS`` with:
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::
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DOCKER_OPTS="-s btrfs"
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Docker Client
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=============
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The provided Docker rc script changes the group ownership of the ``/var/run/socker.sock`` UNIX Socket to ``docker``.
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Add yourself to this group if you wish to access the Docker daemon on localhost via UNIX Socker.
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