In Jenkins how to pass a parameter from Pipeline job to a freestyle job

Question

I am running a pipeline job and with this we need to pass a parameter to a downsteam job but its not working. We tried as follows:

Pipeline JOB:

node {
    parameters {
            choice(
                name: 'OS',
                choices:"Windows\nLinux\nMAC",
                description: "Choose Environment to build!")
                }
    stage('Build') {
        if("${params.Environment}" == 'Windows')
        {
       paramAValue = "${params.Environment}"
       build job: 'QA-Test-Windows',parameters: [[$class: 'StringParameterValue', name: 'ParamA', value: "$paramAValue"]]
        }
    }
    }

QA-Test-Windows is a Freestyle job and in that we tried accessing the parameter in script as follows but its not working.

Write-output "OS selected for testing is ${params.ParamA}"

Write-output "OS selected for testing is ${ParamA}"

Tried accessing variables but its not working. Can anyone please help me on this. We tried creating QA-Test-Windows freestyle job as Pipelinejob but in this freestyle there are lot of Build steps.

score 12 · Answer 1 · edited Apr 05 '19 at 18:20

12

ON THE CALLING JOB:

pipeline {
    agent any

    parameters {
        string(defaultValue: "123", description: 'This is a parameter', name: 'PARAMETER01')
    }

    stages {
        stage('Start'){
            steps{
                    build job: 'ANOTHER_JOB_NAME', wait: false, parameters: [string(name: 'HELLO', value: String.valueOf(PARAMETER01))]
            }
        }
    }
}

ON THE SECOND JOB:

pipeline {
    agent any

    parameters {
        string(defaultValue: "", description: 'K', name: 'HELLO')
    }

    stages {
        stage('PrintParameter'){
            steps{
                sh 'echo ${HELLO}'
            }
        }
    }
}

edited Apr 05 '19 at 18:20

Oneiroi

2,008
1
15
28

answered Apr 04 '19 at 13:01

Lucas Henrique

121
1
3

2

It is worth mention that the `parameterized-trigger` plugin needs to be installed (https://plugins.jenkins.io/parameterized-trigger) – Guy Avraham Nov 19 '19 at 12:04
shouldn't this be `sh 'echo ${params.HELLO}'` – Reza May 13 '21 at 18:28

score 4 · Answer 2 · edited Aug 17 '22 at 14:16

I'm not sure what exactly wrong in your code, looks like there is mistake. Maybe you need to wrap your "$paramAValue" into {} too. when you tries to run downstream job?

But, according to what you want, I just tested this working solution:

I have two pipeline jobs (upstream and downstream):

Downstream job has parameter with name OS
Upstream job has choice parameter PickAnOS

and there is working pipeline script for upstream job, which runs downstream job with the selected parameter

pipeline {
    agent any
    parameters {
        choice(choices: ['Windows', 'Linux'], description: 'What OS?', name: 'PickAnOS')
    }
    stages {
        stage("run downstream job") {
            steps {
                echo "You choose: ${params.PickAnOS}"
                build job: 'downstream_job', parameters: [string(name: 'OS', value: "${params.PickAnOS}")]
            }
        }
    }
}

I hope this helps edit: Fixed a minor mistake as on Jenkins quotation marks, ie '' vs "" make a difference.

In Jenkins how to pass a parameter from Pipeline job to a freestyle job

2 Answers2