关于docker启动失败问题处理

docker info命令输出显示：

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

本次解决问题的资料： 关于Docker启动报错：docker.socket: Failed to listen on sockets: Address already in use https://www.cnblogs.com/Conwie/p/14462232.html 不能解决的网上资料：网上查了一堆资料，没找到解决方法

编辑 vim /etc/docker/daemon.json （解决不了）
https://blog.csdn.net/sdrfengmi/article/details/87929593

写在docker后重新安装   （不考虑）

添加docker用户组    （已经有用户组了）
https://www.dazhuanlan.com/2019/12/31/5e0b0af5a3191/

还有修改 vi /etc/sysconfig/selinux文件信息的（不考虑）
https://blog.csdn.net/qq_40996741/article/details/98473966

然后想着先停掉docker服务。停服务时候报错了 systemctl stop docker.service

Warning: Stopping docker.service, but it can still be activated by:
  docker.socket

docker服务还是存活了，根据docker.socket文件。

接着启动docker服务 systemctl start docker.service 错误信息如下：

A dependency job for docker.service Failed. See 'journalctl -xe' for details

systemctl status docker.service 查看服务状态：

● docker.service - Docker Application Container Engine
   Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; vendor preset: disabled)
   Active: inactive (dead) since Tue 2021-06-08 09:53:44 CST; 10min ago
     Docs: https://docs.docker.com
Main PID: 4695 (code=exited, status=0/SUCCESS)


Jun 08 09:53:42 VM-0-13-centos dockerd[4695]: time="2021-06-08T09:53:42.8864784..."
Jun 08 09:53:42 VM-0-13-centos dockerd[4695]: time="2021-06-08T09:53:42.9251783..."
Jun 08 09:53:44 VM-0-13-centos dockerd[4695]: time="2021-06-08T09:53:44.9135121..."
Jun 08 09:53:44 VM-0-13-centos systemd[1]: Stopped Docker Application Container....
Jun 08 09:57:52 VM-0-13-centos systemd[1]: Dependency Failed for Docker Applica....
Jun 08 09:57:52 VM-0-13-centos systemd[1]: Job docker.service/start Failed with....
Jun 08 10:01:29 VM-0-13-centos systemd[1]: Dependency Failed for Docker Applica....
Jun 08 10:01:29 VM-0-13-centos systemd[1]: Job docker.service/start Failed with....
Jun 08 10:03:09 VM-0-13-centos systemd[1]: Dependency Failed for Docker Applica....
Jun 08 10:03:09 VM-0-13-centos systemd[1]: Job docker.service/start Failed with....
Hint: Some lines were ellipsized, use -l to show in full

看不出来错误信息

然后使用 journalctl -xe 命令查看系统日志信息

主要就是红框里 Jun 08 10:08:41 VM-0-13-centos systemd[1]: docker.socket Failed to listen on sockets: Address already in use Jun 08 10:08:41 VM-0-13-centos systemd[1]: Failed to listen on Docker Socket for the API. 错误提示：监听socket时，发现地址已经被使用。然后去查看 /var/run/ 目录的docker文件发现docker.sock 文件变成的目录 docker.dock/ 删除这个目录就可以解决问题 rm -rf /var/run/docker.sock/ 然后能正常启动docker服务 systemctl restart docker

关于docker启动失败问题处理

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