[Unit]
Description=Docker Application Container Engine
Documentation=http://docs.docker.com
After=network.target

[Service]
Type=notify
EnvironmentFile=-/etc/sysconfig/docker
EnvironmentFile=-/etc/sysconfig/docker-storage
EnvironmentFile=-/etc/sysconfig/docker-network
Environment=GOTRACEBACK=crash
ExecStart=/usr/sbin/dockerd \
          $OPTIONS \
          $DOCKER_STORAGE_OPTIONS \
          $DOCKER_NETWORK_OPTIONS \
          $INSECURE_REGISTRY
TasksMax=8192
LimitNOFILE=1048576
LimitNPROC=1048576
LimitCORE=infinity
MountFlags=slave
TimeoutStartSec=0
Restart=on-abnormal

ExecStartPre=/usr/sbin/docker-network-cleanup
ExecStopPost=/usr/sbin/docker-network-cleanup

[Install]
WantedBy=multi-user.target