Docker 安装后 报 Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker da...

刚在新的Centos上安装Docker,后运行docker run hello-world报错Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

解决办法

$ systemctl daemon-reload

$ sudo service docker restart

$ sudo service docker status (should see active (running))

$ sudo docker run hello-world