「JENKINS-PIPELINE」- 语法 | Syntax

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语法 | https://www.jenkins.io/doc/book/pipeline/syntax/

pipeline {
    agent {}
    triggers {}
    options {}
    stages {}
    post {}
}

agent {} | 选择构建节点

根据分支来选择构建节点

DeepSeek / jenkins 根据分支选择构建节点

实现思路大同小异：（1）根据信息，为变量赋值，（2）在 agent {} 中，引用改数值；

agent {
    label "${env.BRANCH_NAME.contains('test')?'test':env.BRANCH_NAME.contains('master')?'master':'default'}"
}

options {} | 控制构建的选项

禁用并行构建 | disableConcurrentBuilds()

options {
    disableConcurrentBuilds()
}

控制构建超时 | timeout()

timeout(time: 1, unit: ‘HOURS’)

TimeUnit | https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/TimeUnit.html

丢弃旧的构建 | buildDiscarder()

How do I set discard old builds for a Multi Branch Pipeline Job?

options {
    buildDiscarder(logRotator(numToKeepStr: '30', artifactNumToKeepStr: '30'))
}

daysToKeepStr: history is only kept up to this days.
numToKeepStr: only this number of build logs are kept.
artifactDaysToKeepStr: artifacts are only kept up to this days.
artifactNumToKeepStr: only this number of builds have their artifacts kept.

重试当前构建 | retry()

https://www.jenkins.io/doc/pipeline/steps/workflow-basic-steps/#retry-retry-the-body-up-to-n-times

options {
    retry(3)
}

triggers {} | 控制构建触发

cron – How do I schedule jobs in Jenkins? – Stack Overflow

triggers {
    cron('*/5 * * * *') // every 5 minutes
}

// https://stackoverflow.com/questions/39207924/jenkins-how-to-get-and-use-upstream-info-in-downstream

triggers {
    upstream(upstreamProjects: 'Jenkins-Managed-Jobs/0000150/latest', threshold: hudson.model.Result.FAILURE)
}

hudson.model.Result | https://javadoc.jenkins-ci.org/hudson/model/Result.html

parameters {} | 构建参数

文档：https://www.jenkins.io/doc/book/pipeline/syntax/#parameters

选择构建参数

parameters {
    // A choice parameter, 'three'], description: '') }. The first value is the default.
    choice(name: 'serviceFolder', choices: ['F','A','B'], description: 'Service to Build')
    // A boolean parameter
    booleanParam(name: 'DEBUG_BUILD', defaultValue: true, description: '')
}

post {} | 当构建结束时，开始执行某些步骤

https://www.jenkins.io/doc/book/pipeline/syntax/#post

always

pipeline {
    agent any
    stages {
        ...
    }
    post {
        always {
            echo 'I will always say Hello again!'
        }
    }
}

cleanup

针对 post 的其他步骤，当其执行结束之后，将执行 cleanup 步骤。