Question

我在使用JenkinsFile和GIT插件的Jenkins多分支pipleline时遇到问题。

问题在于，每次对暂存分支的推动都会触发master的管道。理想的行为是，推送到暂存分支只会触发pipleine进行暂存，而推送到master分支只会触发用于master的管道

这是我的JenkinsFile

#!/usr/bin/env bash
pipeline {
    agent any
    triggers {
        pollSCM('*/1 * * * *')
    }
    environment {
        GCLOUD_PATH="/var/jenkins_home/GoogleCloudSDK/google-cloud-sdk/bin"
    }
    stages {
        stage('Git Checkout'){
            steps{
              // Clean Workspace
              cleanWs()
              // Get source from Git
              git branch: 'staging', 
                credentialsId: ****', 
                url: 'git@github.com:***/****.git'
            }    
        }
        stage('Update Staging') {
            when {
                branch 'staging'
            }
            environment{
                INSTANCE="***"        
            }
            steps {
                sshagent(credentials : ['****']) {
                    sh 'ssh -tt -o StrictHostKeyChecking=no jenkins@"${INSTANCE}" sudo /opt/webapps/****/deploy.sh firstinstance'
                }
            }
        }
        stage('Update Production') {
            when {
                branch 'master'
            }
            environment{
                gzone="us-central1-a"
            }
            steps {
                    sh '''
                        #!/bin/bash
                        echo "${BRANCH_NAME}"
                        export instances=$("${GCLOUD_PATH}"/gcloud compute instances list --filter="status:(running) AND tags.items=web" --format="value(name)")
                        FIRST=1
                        for instance in ${instances}
                        do
                            echo "### Running Instance: ${instance} ###"
                            if [[ $FIRST == 1 ]]; then
                                echo "first instance"
                                ${GCLOUD_PATH}/gcloud compute ssh jenkins@${instance} --zone ${gzone} '--ssh-flag=-tt -i /root/.ssh/id_rsa -o StrictHostKeyChecking=no' --command="echo first"
                            else
                                ${GCLOUD_PATH}/gcloud compute ssh jenkins@${instance} --zone ${gzone} '--ssh-flag=-tt -i /root/.ssh/id_rsa -o StrictHostKeyChecking=no' --command="sudo uptime"
                            fi
                            FIRST=0
                        done
                    '''

            }
        }
    }
    post {
        success {
            cleanWs()
        }
    }

}

我将分享一些日志：这是master分支的日志

http://34.69.57.212:8080/job/tinytap-server/job/master/2/pollingLog/  returns
Started on Dec 10, 2019 1:42:00 PM
Using strategy: Specific revision
[poll] Last Built Revision: Revision 12ecdbc8d2f7e7ff1f578b135ea0b23a28d7672d (master)
using credential ccb9a735-04d9-4aab-8bab-5c86fe0f363c
 > git --version # timeout=10
using GIT_ASKPASS to set credentials 
 > git ls-remote -h -- https://github.com/tinytap/tinytap-web.git # timeout=10
Found 222 remote heads on https://github.com/tinytap/tinytap-web.git
[poll] Latest remote head revision on refs/heads/master is: 12ecdbc8d2f7e7ff1f578b135ea0b23a28d7672d - already built by 1
Using strategy: Default
[poll] Last Built Revision: Revision f693e358ce14bc5dfc6111e62ed88e6dd1d0dfc9 (refs/remotes/origin/staging)
using credential 17f45a89-da78-4969-b18f-cb270a526347
 > git --version # timeout=10
using GIT_SSH to set credentials jenkins key
 > git ls-remote -h -- git@github.com:tinytap/tinytap-web.git # timeout=10
Found 222 remote heads on git@github.com:tinytap/tinytap-web.git
[poll] Latest remote head revision on refs/heads/staging is: 907899a0e7e131e9416ee65aad041c8da111e2fe
Done. Took 1 sec 
Changes found

这是master分支的日志，但只有阶段进行了新的提交：

http://34.69.57.212:8080/job/tt-server/job/master/3/pollingLog/    returns
Started on Dec 10, 2019 1:55:00 PM
Using strategy: Specific revision
[poll] Last Built Revision: Revision 12ecdbc8d2f7e7ff1f578b135ea0b23a28d7672d (master)
using credential ****-****-****-****-5c86fe0f363c
 > git --version # timeout=10
using GIT_ASKPASS to set credentials 
 > git ls-remote -h -- https://github.com/tt/tt-web.git # timeout=10
Found 222 remote heads on https://github.com/tt/tt-web.git
[poll] Latest remote head revision on refs/heads/master is: 12ecdbc8d2f7e7ff1f578b135ea0b23a28d7672d - already built by 2
Using strategy: Default
[poll] Last Built Revision: Revision 907899a0e7e131e9416ee65aad041c8da111e2fe (refs/remotes/origin/staging)
using credential ****-****-****-****-cb270a526347
 > git --version # timeout=10
using GIT_SSH to set credentials jenkins key
 > git ls-remote -h -- git@github.com:tt/tt-web.git # timeout=10
Found 222 remote heads on git@github.com:tt/tt-web.git
[poll] Latest remote head revision on refs/heads/staging is: eab6e8bc6d8586084e9fe9856dec7fd8b31dd098
Done. Took 0.98 sec 
Changes found

即使主分支上的head不变，也请注意“发现更改”

詹金斯版2.190.1 Git插件4.0.0版 Git客户端插件2.9.0版

Answer 1

我使用此插件-https://github.com/lachie83/jenkins-pipeline，对我来说效果很好。您需要为每个分支有单独的if块，然后在其中有一个stage块。下面的示例：

#!/usr/bin/groovy

@Library('https://github.com/lachie83/jenkins-pipeline@master')

def pipeline = new io.estrado.Pipeline()
def cloud = pipeline.getCloud(env.BRANCH_NAME)
def label = pipeline.getPodLabel(cloud)

// deploy only the staging branch
if (env.BRANCH_NAME == 'staging') {
    stage ('deploy to k8s staging') {
      //Deploy to staging
    }
}
// deploy only the master branch
if (env.BRANCH_NAME == 'master') {
    stage ('deploy to k8s production') {
      //Deploy to production
    }
}

Answer 2

我认为您在Jenkins文件中有一些逻辑上的遗漏。按照目前的情况，您可以轮询SCM进行更改。如果检测到任何更改，则第一阶段“ Git Checkout”将（始终）签出登台分支。然后，如果分支处于“暂存”状态（因为它已被硬编码以检出上面的分支）等，您将有另一个阶段进行操作。这将是首先要解决的问题-如果检测到SCM更改，则检出正确的分支。如何-有几种选择。我通常在第一个管道阶段在“选项”中同时使用“ skipDefaultCheckout（）”和显式检出：

        steps {
            sshagent(['github-creds']) {
                git branch: "${env.BRANCH_NAME}", credentialsId: 'github-creds', url: 'git@github.com:x/y.git'
            }
        }

第二件事是您尝试将两个不同的分支压缩到一个Jenkinsfile中。这不是应该怎么做。 Jenkins将使用给定分支中的Jenkinsfile-只需确保暂存中的Jenkinsfile包含您想要包含的内容，与master上的Jenkinsfile相同。

希望有帮助。

Jenkins多分支管道触发不相关分支上的管道

2 个答案: