Docker启动过程中常见错误解决

Posted 2022-01-28 alextongtong

错误：

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running? 

如果在Centos7上执行：

        systemctl daemon-reload

        sudo service docker restart

报出新的错误：

       Redirecting to /bin/systemctl restart docker.service
       Failed to restart docker.service: Unit not found.

解决方式：

      缺少了如下的文件：/usr/lib/systemd/system/docker.socket        

[Unit]
Description=Docker Socket for the API
PartOf=docker.service

[Socket]
ListenStream=/var/run/docker.sock
SocketMode=0660
SocketUser=root
SocketGroup=docker

[Install]
WantedBy=sockets.target

      添加后执行

systemctl daemon-reload
systemctl start docker.socket
systemctl start docker