如何在流水线中使用Docker容器进行编译构建

配置DockerInDocker 

配置JenkinsMaster挂载Docker

docker run --name jenkins -itd \
       -p 8081:8080 \
       -p 50000:50000 \
       -v ~/jenkins:/var/jenkins_home \
       -v /var/run/docker.sock:/var/run/docker.sock \
       -v /usr/local/bin/docker:/usr/bin/docker \
       jenkins/jenkins:lts

解决权限问题/以root用户运行

docker exec -it -u root jenkins bash
usermod -aG root jenkins
id jenkins
uid=1000(jenkins) gid=1000(jenkins) groups=1000(jenkins),0(root),1(daemon)

调试流水线

pipeline {
    agent {
        docker { 
            image 'maven:3.6.3-jdk-8' 
            args '-v $HOME/.m2:/root/.m2'
        }
    }
    stages {
        stage('Build') {
            steps {
                sh 'mvn -v'
            }
        }
    }
}

Started by user admin
Replayed #40
Running in Durability level: MAX_SURVIVABILITY
[Pipeline] Start of Pipeline
[Pipeline] node
Running on Jenkins in /var/jenkins_home/workspace/test
[Pipeline] {
[Pipeline] isUnix
[Pipeline] sh
+ docker inspect -f . maven:3.6.3-jdk-8
.
[Pipeline] withDockerContainer
Jenkins seems to be running inside container 5373edddcdadb63df5e5c6ed7f6149719ad749536242f10c06cbceca511a9898
$ docker run -t -d -u 1000:1000 -w /var/jenkins_home/workspace/test --volumes-from 5373edddcdadb63df5e5c6ed7f6149719ad749536242f10c06cbceca511a9898 -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** maven:3.6.3-jdk-8 cat
$ docker top 01102f26f8957fc7c46d0f9d1118e38316e313707357cdc5332c7d62836e1df2 -eo pid,comm
[Pipeline] {
[Pipeline] stage
[Pipeline] { (Test)
[Pipeline] sh
+ mvn -v
Apache Maven 3.6.3 (cecedd343002696d0abb50b32b541b8a6ba2883f)
Maven home: /usr/share/maven
Java version: 1.8.0_242, vendor: Oracle Corporation, runtime: /usr/local/openjdk-8/jre
Default locale: en, platform encoding: UTF-8
OS name: "linux", version: "4.19.76-linuxkit", arch: "amd64", family: "unix"
[Pipeline] }
[Pipeline] // stage
[Pipeline] }
$ docker stop --time=1 01102f26f8957fc7c46d0f9d1118e38316e313707357cdc5332c7d62836e1df2
$ docker rm -f 01102f26f8957fc7c46d0f9d1118e38316e313707357cdc5332c7d62836e1df2
[Pipeline] // withDockerContainer
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline
Finished: SUCCESS

每个阶段指定不同的Docker容器运行

pipeline {
    agent none
    stages {
        stage('ServiceBuild') {
            agent {
                docker { 
                    image 'maven:3.6.3-jdk-8' 
                    args '-v $HOME/.m2:/root/.m2'
                }
            }
            steps {
                sh 'mvn -v  && sleep 15'
            }
        }
      
        stage('WebBuild') {
            agent {
                docker { 
                    image 'node:7-alpine' 
                    args '-v $HOME/.m2:/root/.m2'
                }
            }
            steps {
                sh 'node -v  && sleep 15'
            }
        }
    }

前端流水线

pipeline {
    agent none
    stages {
        stage('WebBuild') {
            agent {
                docker { 
                    image 'node:10.19.0-alpine' 
                    args '-u 0:0 -v /var/jenkins_home/.npm:/root/.npm'
                }
            }
            steps {
                sh """
                    id 
                    ls /root/.npm
                    ls /root/ -a
                    npm config set unsafe-perm=true
                    npm config list
                    npm config set cache  /root/.npm
                    #npm config set registry https://registry.npm.taobao.org
                    npm config list
                    ls 
                    npm install  --unsafe-perm=true && npm run build  && ls -l dist/ && sleep 15 
                """
            }
        }
    }
}

FAQ

npm构建权限问题：使用root用户构建。设置容器运行用户 -u 0:0

npm打包慢问题：

2.1 挂载缓存卷

-v /var/jenkins_home/.npm:/root/.npm

2.2 设置淘宝源

npm config set registry https://registry.npm.taobao.org

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