Jenkins pipeline pass all parameters down to downstream jobs

Question

I have a pipeline job named buildall which looks like this:

pipeline {
    stages {
        stage(\"job1\") {
            build job: \"job1\"
           


        

Answer 1

The following seems to work (I haven't tested it extensively though):

pipeline {
    agent any
    parameters {
        string(name: 'PARAM1', description: 'Param 1?')
        string(name: 'PARAM2', description: 'Param 2?')
    }
    stages {
        stage('Example') {
            steps {
                echo "${params}"
                script {
                    def myparams = currentBuild.rawBuild.getAction(ParametersAction).getParameters()
                    build job: 'downstream-pipeline-with-params', parameters: myparams
                }    
            }
        }
    }
}

Drawback: to access rawBuild and getAction you have to disable the Groove sandbox or approve these signatures in Jenkins under Manage Jenkins > In-process Script Approval. This dialog will show you that you might introduced a security vulnerability. So it depends on your environment if you want to take this risk or not.