解决Docker 无法启动

报错内容：

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

Job for docker.service failed because the control process exited with error code.

See "systemctl status docker.service" and "journalctl -xe" for details.

docker.service: Scheduled restart job, restart counter is at 3.

Stopped Docker Application Container Engine.

docker.service: Start request repeated too quickly.

docker.service: Failed with result 'exit-code'.

Failed to start Docker Application Container Engine.

docker.service: Start request repeated too quickly.

docker.service: Failed with result 'exit-code'.

Failed to start Docker Application Container Engine.

解决方法：

修改/etc/docker/daemon.json，加入

{

   "registry-mirrors": ["https://docker.mirrors.ustc.edu.cn"]

}

systemctl daemon-reload

systemctl restart docker

systemctl status docker

输出以下内容，启动成功

● docker.service - Docker Application Container Engine

     Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled)

     Active: active (running) since Tue 2024-05-14 15:01:30 CST; 7s ago