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

[Service]
Type=notify
EnvironmentFile={{ environment_file }}
ExecStart=/usr/bin/docker daemon -H fd:// "$DOCKER_OPTS"
MountFlags=slave
LimitNOFILE=1048576
LimitNPROC=1048576
LimitCORE=infinity
Restart=always
RestartSec=2s
StartLimitInterval=0
ExecStartPre=/opt/kubernetes/helpers/docker-prestart

[Install]
WantedBy=multi-user.target