centos7启动、关闭、重启docker及重启容器

CENTOS 7上：
docker启动命令,docker重启命令,docker关闭命令
启动 systemctl start docker
守护进程重启 sudo systemctl daemon-reload
重启docker服务 systemctl restart docker
重启docker服务 sudo service docker restart
关闭docker service docker stop
关闭docker systemctl stop docker
启动容器 ：docker start ID