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58 lines
2.4 KiB
Text
58 lines
2.4 KiB
Text
Docker is an open-source project to easily create lightweight, portable,
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self-sufficient containers from any application. The same container that
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a developer builds and tests on a laptop can run at scale, in production,
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on VMs, bare metal, OpenStack clusters, public clouds and more.
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To use docker as a limited user, add your user to the 'docker' group:
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# groupadd -r -g 281 docker
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# usermod -a -G docker <your_username>
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This will require logging out and back in.
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To have the docker daemon start and stop with your host,
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add to /etc/rc.d/rc.local:
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if [ -x /etc/rc.d/rc.docker ]; then
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/etc/rc.d/rc.docker start
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fi
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and to /etc/rc.d/rc.local_shutdown (creating it if needed):
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if [ -x /etc/rc.d/rc.docker ]; then
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/etc/rc.d/rc.docker stop
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fi
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For cgroups, docker does not support mounting cgroups on the "all" single hierarchy controller,
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but rather the individual controllers.
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To accomplish this, add the following to your /etc/fstab:
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cgroup /cgroup/cpuset cgroup rw,relatime,cpuset 0 0
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cgroup /cgroup/cpu cgroup rw,relatime,cpu 0 0
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cgroup /cgroup/cpuacct cgroup rw,relatime,cpuacct 0 0
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cgroup /cgroup/memory cgroup rw,relatime,memory 0 0
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cgroup /cgroup/devices cgroup rw,relatime,devices 0 0
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cgroup /cgroup/freezer cgroup rw,relatime,freezer 0 0
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cgroup /cgroup/net_cls cgroup rw,relatime,net_cls 0 0
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cgroup /cgroup/blkio cgroup rw,relatime,blkio 0 0
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And in addition, add to /etc/cgconfig.conf the following:
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mount {
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cpuset = /cgroup/cpuset;
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cpu = /cgroup/cpu;
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cpuacct = /cgroup/cpuacct;
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memory = /cgroup/memory;
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devices = /cgroup/devices;
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freezer = /cgroup/freezer;
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net_cls = /cgroup/net_cls;
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blkio = /cgroup/blkio;
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}
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If you are interested in enabling cgroup memory resource controll over swap as
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well, then append "swapaccount=1" to your kernel's parameters. This is often in
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/etc/lilo.conf, on the "append" variable.
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NOTE: google-go-lang is only needed at compile time - not needed for runtime.
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