我是码头工人的新手。我只是试着在我的本地机器(Ubuntu 16.04)上使用docker和Jenkins。
我用下面的管道脚本配置了一个新作业。
node {
stage('Build') {
docker.image('maven:3.3.3').inside {
sh 'mvn --version'
}
}
}
但是它失败了，错误如下:
在unix:///var/run/ Docker .sock试图连接到Docker守护进程套接字时被拒绝
当前回答
在做生产配置时，我得到了权限问题。我尝试下面的解决方案来解决这个问题。
错误消息
ubuntu@node1:~$ docker run hello-world
docker: Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Post http://%2Fvar%2Frun%2Fdocker.sock/v1.38/containers/create: dial unix /var/run/docker.sock: connect: permission denied.
See 'docker run --help'.
解决方法:错误消息/var/run/docker.sock中socket的权限:
ubuntu@ip-172-31-21-106:/var/run$ ls -lrth docker.sock
srw-rw---- 1 root root 0 Oct 17 11:08 docker.sock
ubuntu@ip-172-31-21-106:/var/run$ sudo chmod 666 /var/run/docker.sock
ubuntu@ip-172-31-21-106:/var/run$ ls -lrth docker.sock
srw-rw-rw- 1 root root 0 Oct 17 11:08 docker.sock
更改docket权限后。Sock然后执行以下命令检查权限。
ubuntu@ip-172-31-21-106:/var/run$ docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
1b930d010525: Pull complete
Digest: sha256:c3b4ada4687bbaa170745b3e4dd8ac3f194ca95b2d0518b417fb47e5879d9b5f
Status: Downloaded newer image for hello-world:latest
Hello from Docker!
This message shows that your installation appears to be working correctly.
To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
(amd64)
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
to your terminal.
To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash
Share images, automate workflows, and more with a free Docker ID:
https://hub.docker.com/
For more examples and ideas, visit:
https://docs.docker.com/get-started/
其他回答
我的成功
sudo usermod -a -G docker $USER
reboot
在我的例子中，不仅需要将jenkins用户添加到docker组，而且需要将该组作为jenkins用户的主组。
# usermod -g docker jenkins
# usermod -a -G jenkins jenkins
不要忘记重新连接jenkins从节点或重新启动jenkins服务器，这取决于您的情况。
通常需要重新启动才能对新的用户组和用户生效。
第一步:将用户名加入docker组:
sudo usermod -a -G docker $USER
然后注销并重新登录。
第二步:修改docker组ID:
newgrp docker
奖励:检查你的新组:
id -g
附:如果你感兴趣，参考资料在这里。
如果你可能会得到如下错误，
Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock
or
level=error msg="failed to dial gRPC: cannot connect to the Docker daemon. Is 'docker daemon' running on this host?: dial unix /var/run/docker.sock: connect: permission denied"
试着执行下面的命令，
$ sudo su - jenkins
$ sudo usermod -a -G docker $USER
$ sudo chown jenkins:docker /var/run/docker.sock
