Jenkins:无法连接到Docker守护程序 [英] Jenkins: Can't connect to Docker daemon
问题描述
我正在CentOS机器上运行Jenkins和Docker.我有一个詹金斯(Jenkins)工作，可以拉出Github存储库并构建Docker映像.当我尝试运行作业时，出现错误:
I am running Jenkins and Docker on a CentOS machine. I have a Jenkins job that pulls a Github repo and builds a Docker image. When I try running the job I get the error:
+ docker build -t myProject .
Cannot connect to the Docker daemon. Is the docker daemon running on this host?
Build step 'Execute shell' marked build as failure
Finished: FAILURE
+ docker build -t myProject .
Cannot connect to the Docker daemon. Is the docker daemon running on this host?
Build step 'Execute shell' marked build as failure
Finished: FAILURE
即使我已经通过sudo usermod -aG docker jenkins将jenkins添加到我的docker用户组并重新启动计算机，也会发生这种情况.我该如何解决?
This is occurs even though I have added jenkins to my docker usergroup via sudo usermod -aG docker jenkins and restarted my machine. How do I fix this?
顺便说一句，如果尝试将命令更改为sudo docker build -t myProject .，我只会得到错误sudo: sorry, you must have a tty to run sudo
By the way, if try changing the command to sudo docker build -t myProject . I just get the error sudo: sorry, you must have a tty to run sudo
推荐答案
安装Jenkins和Docker之后. 将jenkins用户添加到dockergroup(就像您所做的一样)
After the installation of Jenkins and Docker. Add jenkins user to dockergroup (like you did)
sudo gpasswd -a jenkins docker
编辑以下文件
vi /usr/lib/systemd/system/docker.service
并编辑此规则以公开API:
And edit this rule to expose the API :
ExecStart=/usr/bin/docker daemon -H unix:// -H tcp://localhost:2375
现在是时候重新加载并重新启动Docker守护程序了
Now it's time to reload and restart your Docker daemon
systemctl daemon-reload
systemctl restart docker
然后我重新启动了jenkins，并且能够在我的jenkins作业中以jenkins用户的身份执行docker命令
Then I restarted jenkins and I was able to perform docker commands as jenkins user in my jenkins jobs
sudo service jenkins restart
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