安装部署

删除老版本残留

sudo yum remove docker \
                  docker-client \
                  docker-client-latest \
                  docker-common \
                  docker-latest \
                  docker-latest-logrotate \
                  docker-logrotate \
                  docker-engine

启动 systemctl start docker
守护进程重启
sudo systemctl daemon-reload
重启docker服务
sudo systemctl restart docker
关闭docker
sudo systemctl stop docker
重启docker服务
sudo service docker restart
关闭docker
sudo service docker stop