Docker 安装后 报 Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running? 解决办法
1.看 /etc/docker/daemon.json 的配置
{ "registry-mirrors":["https://---.mirror.ali---yuncs.com"] }
解决办法 $ systemctl daemon-reload $ sudo service docker restart $ sudo service docker status (should see active (running)) $ sudo docker run hello-world