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

[Service]
Type=notify
ExecStartPre=/etc/docker/env.sh
EnvironmentFile=/etc/docker/env
ExecStart=/usr/local/bin/dockerd --cgroup-parent=${CGROUP_PARENT}
ExecReload=/bin/kill -s HUP $MAINPID
LimitNOFILE=infinity
LimitNPROC=infinity
LimitCORE=infinity
TimeoutStartSec=0
Delegate=yes
KillMode=process

[Install]
WantedBy=multi-user.target