vi /etc/systemd/system/docker.service
Unit
Service
Type=notify
ExecStart=/usr/bin/dockerd
ExecReload=/bin/kill -s HUP $MAINPID
Restart=always
StartLimitBurst=3
StartLimtInterval=60s
Install
WantedBy=multi-user.target
systemctl daemon-reload
systemctl start docker
docker ps
docker run hello-world
已解决