[Unit]
Description=Docker Application Container Engine
Documentation=https:
After=network-online.target firewalld.service
Wants=network-online.target
[Service]
Type=notify
# 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
# 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
# Uncomment TasksMax
if
your systemd version supports it.
# Only systemd 226
and
above support this version.
#TasksMax=infinity
TimeoutStartSec=0
# 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
# restart the docker process
if
it exits prematurely
Restart=on-failure
StartLimitBurst=3
StartLimitInterval=60s
[Install]
WantedBy=multi-user.target