How to use parameterised build with multiple downstream jobs and Jenkinsfiles

Using Jenkins
1

I have an upstream and downstream job, that downstream job refers to a Jenkinsfile stored in Github. I assume the values are not being passed on to the Jenkinsfile.

This is what I have:

  1. The upstream job has choice parameters
    parameters {
        choice(
            name: 'WHICH_ACTION',
            choices: ["Stop", "Deploy"],
            description: 'Choose whether to stop or deploy services'
            )
        }

which are being passed on to downstream job


    build job: 'payment/payment-provider-api', propagate: false
                                parameters: [
                                   string(name: "WHICH_ACTION", value: params.ACTION),
                                ]
  1. The Jenkinsfile should take the values from the Upstream job
    stages {
        stage('Stop') {
         when {
              expression { ACTION == 'Stop' }
         }

I use parameterised build plugin.
I get an error. Is it because my syntax is incorrect or because the values are not passing? Any advice appreciated

2

You probably are mixing up parameter names
upstream → defines WHICH_ACTION
downstream → wants ACTION

so your call should look like:

job ( parameters: [ string(name:'ACTION', value:params.WHICH_ACTION)])
3

Thank you! I will leave your solution, as it is most likely the correct one, but I still get an error.
When I remove the parameters, the build works, so it’s most likely due to parameters not getting passed on. I have parameterized build plugin, is there anything else needed to make sure the values are passed on to the jenkinsfile?

4

The downstream job needs to declare the parameters of course, jobs discard all unknown parameters.