Docker Dependency failed for Docker Application Container Engine 解决方法

Docker Dependency failed for Docker Application Container Engine 解决方法

今天安装docker的时候，在安装完成后发现以下错误：

May 10 16:32:05 systemd: Starting Docker Application Container Engine...
May 10 16:32:05 docker: time="2017-05-10T16:32:05.695484742+08:00" level=fatal msg="No sockets found"
May 10 16:32:05 systemd: docker.service: main process exited, code=exited, status=1/FAILURE
May 10 16:32:05 systemd: Failed to start Docker Application Container Engine.
May 10 16:32:05 systemd: Unit docker.service entered failed state.
May 10 16:32:05 systemd: docker.service failed.

解决方法：

1.添加docker用户组（groupadd docker，如果/etc/group用统一配置管理的话记得在源group文件中添加docker组信息）

方法2.修改/usr/lib/systemd/system/docker.socket文件：

[Unit]
Description=Docker Socket for the API
PartOf=docker.service

[Socket]
ListenStream=/var/run/docker.sock
SocketMode=0660
SocketUser=root
SocketGroup=docker    这里改成：SocketGroup=root 或其他存在的组

通过cat /etc/group可以看到 有一个dockerroot的组
将上方的root改成dockerroot即可。

update:

其实仔细看日志可以看到更加详细的报错：

May 10 16:32:05 systemd: Starting Docker Storage Setup...
May 10 16:32:05 docker-storage-setup: INFO: Volume group backing root filesystem could not be determined
May 10 16:32:05 docker-storage-setup: ERROR: No valid volume group found. Exiting.
May 10 16:32:05 systemd: docker-storage-setup.service: main process exited, code=exited, status=1/FAILURE
May 10 16:32:05 systemd: Failed to start Docker Storage Setup.
May 10 16:32:05 systemd: Unit docker-storage-setup.service entered failed state.
May 10 16:32:05 systemd: docker-storage-setup.service failed.

从以上日志中我们看到：ERROR: No valid volume group found. Exiting.

告诉我们 没有找到有效的group,退出。

所以说，多看日志，没有不能解决的问题。O(∩_∩)O~

以上

好吧，我承认这篇文章比较水，就是简单记录，方便以后自己查询方便，大家勿喷。

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