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docker daemon：初始化网络控制器时出错

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docker daemon：初始化网络控制器时出错

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

$USER已添加到docker组。

$systemctl status docker返回：

● docker.service - Docker Application Container Engine
   Loaded: loaded (/etc/systemd/system/docker.service; enabled; vendor preset: enabled)
   Active: failed (Result: start-limit-hit) since wo 2019-05-08 12:44:07 CEST; 36min ago
     Docs: https://docs.docker.com
 Main PID: 10460 (code=exited, status=1/FAILURE)

$journal -u docker回到：

Caused by Error starting daemon: Error initializing network controller

答案1

看完之后/var/log/syslog我明白了Error starting daemon: Error initializing network controller: invalid CIDR address:。

问题出在单元文件中，/etc/systemd/system/docker.service更确切地说是--bip使用的标志ExecStart=/usr/bin/dockerd （它告诉守护进程更改默认 docker-bridge 的默认范围）并不好。

PS：用于恢复docker.socket单元文件（版本18.09）的有用链接：

https://github.com/docker/docker-ce/blob/v18.09.0/components/packaging/systemd/docker.service

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