Jenkins pipeline (parallel && dynamically)?

Question

Question

I have simple parallel pipeline (see code) which I use together with Jenkins 2.89.2. Additionally I use parameters and now want to be able to in-/decrease the

Answer 1

@Vitalii

I wrote similiar code piece, but unfoutunelty, all three element been loopped all shows the last one, not sure if it had something to do with groovy / jenkinsfile itself, that some clouse / reference went break with wrong usage

my purpose is to distribute tasks to specific work nodes

node_candicates = ["worker-1", "worder-2", "worker-3"]

def jobs = [:]
for (node_name in node_candidates){
    jobs["run on $node_name"] = {             // good
        stage("run on $node_name"){           // all show the third 
            node(node_name){                  // all show the third 
                print "on $node_name"
                sh "hostname"
            }
        }
    }
}    
parallel jobs

it went totally Ok if I expand / explain the loop, instead of loop over it, like

parallel worker_1: {
    stage("worker_1"){
        node("worker_1"){
            sh """hostname ; pwd """
            print "on worker_1"
        }
    }
},  worker_2: {
    stage("worker_2"){
        node("worker_2"){
            sh """hostname ; pwd """
            print "on worker_2"
        }
    }
},  worker_3: {
    stage("worker_3"){
        node("worker_3"){
            sh """hostname ; pwd """
            print "on worker_3"
        }
    }
}