Trigger other Jenkinsjob when new Tag available

README.md

README

• add each job via scm to Jenkins (named as job1 and job2 -> job1.Jenkinsfile has 'job2' defined as jobname
• enable 'GitHub hook trigger for GITScm polling' on job1
• set pipeline repo of job1 to match only releases (= tags/*):
  Pipeline.Definition.SCM.Git.Repositories.Refspec: '+refs/tags/v*':'refs/remotes/origin/tags/v*'
  Pipeline.Definition.SCM.Git.BranchesToBuild.BranchSpecifier: **/tags/v**

job1.Jenkinsfile

pipeline {
    agent any
    stages {
        stage('Beispiel') {
            steps {
                script {
                    GIT_TAG = sh (
                        # will grep latest branch with versioning pattern (like v1.0, v22.44.66)
                        script: 'git tag --contains HEAD | egrep "v(\\d+\\.?){0,3}" | head -n1',
                        returnStdout: true
                    ).trim()
                }
            }
        }
    }
    post {
        always {
                 build job: 'job2',
                     parameters: [[$class: 'StringParameterValue', name: 'passed_param', value: String.valueOf(GIT_TAG)]]
        }
    }
}

job2.Jenkinsfile

pipeline {
    agent any
    parameters{
        string(
            name: 'passed_param', 
            defaultValue: 'TESTING', 
            description: 'The target environment',
        )
    }
    stages {
        stage('Example') {
            steps {
                echo params.passed_param
            }
        }
    }
}