记一次CentOS 7安装Docker报错

Leefs 2020-03-29 PM 3470℃ 0条

# CentOS 7安装Docker报错

在启动Docker时出现以下问题：

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

执行**systemctl status docker.service**命令，打印出相关的日志：

```java
[root@localhost ~]# systemctl status docker.service
● docker.service - Docker Application Container Engine
   Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)
   Active: failed (Result: start-limit) since Sun 2020-03-29 11:29:46 EDT; 11s ago
     Docs: https://docs.docker.com
  Process: 66408 ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock (code=exited, status=1/FAILURE)
 Main PID: 66408 (code=exited, status=1/FAILURE)

Mar 29 11:29:44 localhost systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE
Mar 29 11:29:44 localhost systemd[1]: Failed to start Docker Application Container Engine.
Mar 29 11:29:44 localhost systemd[1]: Unit docker.service entered failed state.
Mar 29 11:29:44 localhost systemd[1]: docker.service failed.
Mar 29 11:29:46 localhost systemd[1]: docker.service holdoff time over, scheduling restart.
Mar 29 11:29:46 localhost systemd[1]: Stopped Docker Application Container Engine.
Mar 29 11:29:46 localhost systemd[1]: start request repeated too quickly for docker.service
Mar 29 11:29:46 localhost systemd[1]: Failed to start Docker Application Container Engine.
Mar 29 11:29:46 localhost systemd[1]: Unit docker.service entered failed state.
Mar 29 11:29:46 localhost systemd[1]: docker.service failed.
```

上面的报错信息在百度上搜了一堆也解决不了问题，，，

于是在不经验间执行查看docker的版本信息，发现报错原因

```
[root@localhost ~]# docker version
Client: Docker Engine - Community
 Version:           19.03.8
 API version:       1.40
 Go version:        go1.12.17
 Git commit:        afacb8b
 Built:             Wed Mar 11 01:27:04 2020
 OS/Arch:           linux/amd64
 Experimental:      false
error during connect: Get http://%2Fvar%2Frun%2Fdocker.sock/v1.40/version: read unix @->/var/run/docker.sock: read: connection reset by peer
```

然后就重启一下Linux服务器

报如下错误

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

解决办法：

```
[root@localhost ~]# systemctl daemon-reload
[root@localhost ~]# sudo service docker restart
[root@localhost ~]# sudo service docker status
[root@localhost ~]# systemctl start docker
```

docker可以正常执行！！！

解决问题也有点乱，不过好在问题解决，可以安心睡觉了

标签: Docker

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