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In the event that the docker daemon is managed by systemd and spontaneously dies the default service configuration does not have docker restart. For people who just want to install and start docker then never worry about whether docker is running a better default may be to restart the service on a failure. Signed-off-by: Ryan Abrams <rdabrams@gmail.com>
32 lines
1.1 KiB
Text
32 lines
1.1 KiB
Text
[Unit]
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Description=Docker Application Container Engine
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Documentation=https://docs.docker.com
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After=network.target firewalld.service
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[Service]
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Type=notify
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# the default is not to use systemd for cgroups because the delegate issues still
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# exists and systemd currently does not support the cgroup feature set required
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# for containers run by docker
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ExecStart=/usr/bin/dockerd
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ExecReload=/bin/kill -s HUP $MAINPID
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# Having non-zero Limit*s causes performance problems due to accounting overhead
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# in the kernel. We recommend using cgroups to do container-local accounting.
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LimitNOFILE=infinity
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LimitNPROC=infinity
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LimitCORE=infinity
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# Uncomment TasksMax if your systemd version supports it.
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# Only systemd 226 and above support this version.
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#TasksMax=infinity
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TimeoutStartSec=0
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# set delegate yes so that systemd does not reset the cgroups of docker containers
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Delegate=yes
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# kill only the docker process, not all processes in the cgroup
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KillMode=process
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# restart the docker process if it exits prematurely
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Restart=on-failure
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StartLimitBurst=3
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StartLimitInterval=60s
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[Install]
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WantedBy=multi-user.target
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