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
2019-05-26
这对我很管用!
示例docker-compose:
version: "3"
services:
jenkins:
image: jenkinsci/blueocean
privileged: true
ports:
- "8080:8080"
volumes:
- $HOME/learning/jenkins/jenkins_home:/var/jenkins_home
environment:
- DOCKER_HOST=tcp://socat:2375
links:
- socat
socat:
image: bpack/socat
command: TCP4-LISTEN:2375,fork,reuseaddr UNIX-CONNECT:/var/run/docker.sock
volumes:
- /var/run/docker.sock:/var/run/docker.sock
expose:
- "2375"
在我的例子中，它只是启动docker服务:
sudo service docker start
我使用以下命令修复了这个问题:
sudo chmod 777 /var/run/docker.sock
sudo chown ${USER}:docker /var/run/docker.sock
通常需要重新启动才能对新的用户组和用户生效。
如果你在docker容器中运行Jenkins，而你的Jenkins链接到主docker，那么你可以通过下面的Dockerfile来修复这个问题:
FROM jenkins/jenkins:2.179
USER root
RUN groupadd docker && usermod -a -G docker jenkins
USER jenkins
