diff --git a/components/packaging/systemd/docker.service b/components/packaging/systemd/docker.service index 23557a0089..b99640fc82 100644 --- a/components/packaging/systemd/docker.service +++ b/components/packaging/systemd/docker.service @@ -8,14 +8,46 @@ Wants=network-online.target [Service] # Install containerd-shim-process if it's not already installed ExecStartPre=/usr/libexec/containerd-offline-installer /var/lib/containerd-offline-installer/containerd-shim-process.tar docker.io/docker/containerd-shim-process + +# the default is not to use systemd for cgroups because the delegate issues still +# exists and systemd currently does not support the cgroup feature set required +# for containers run by docker ExecStart=/usr/bin/dockerd +ExecReload=/bin/kill -s HUP $MAINPID ExecStopPost=/usr/bin/dockerd post-stop TimeoutSec=0 RestartSec=2 Restart=always + +# Note that StartLimit* options were moved from "Service" to "Unit" in systemd 229. +# Both the old, and new location are accepted by systemd 229 and up, so using the old location +# to make them work for either version of systemd. +StartLimitBurst=3 + +# Note that StartLimitInterval was renamed to StartLimitIntervalSec in systemd 230. +# Both the old, and new name are accepted by systemd 230 and up, so using the old name to make +# this option work for either version of systemd. +StartLimitInterval=60s + # On RPM Based distributions PATH isn't defined so we define it here # /opt/containerd/bin is in front so dockerd grabs the correct runc binary Environment="PATH=/opt/containerd/bin:/sbin:/usr/bin:/usr/local/bin:$PATH" +# Having non-zero Limit*s causes performance problems due to accounting overhead +# in the kernel. We recommend using cgroups to do container-local accounting. +LimitNOFILE=infinity +LimitNPROC=infinity +LimitCORE=infinity + +# Comment TasksMax if your systemd version does not supports it. +# Only systemd 226 and above support this option. +TasksMax=infinity + +# set delegate yes so that systemd does not reset the cgroups of docker containers +Delegate=yes + +# kill only the docker process, not all processes in the cgroup +KillMode=process + [Install] WantedBy=multi-user.target