docker 启动失败问题

执行systemctl restart docker异常

返回下面的错误

`Job for docker.service failed because the control process exited with error code. See "systemctl status docker.service" and "journalctl -xe" for details.`

方法一：
cat /etc/docker/daemon.json 文件是否正确输出

方法二：
执行sudo systemctl status docker查看

执行sudo /usr/bin/dockerd

删除docker.pid
命令：rm /var/run/docker.pid
授权：sudo chmod 666 /var/run/docker.sock
然后在重启