Generate pipeline parallel steps

[Tomas Pekarovic]

Hi all,

 I'm trying to change my multiconfiguration project into pipeline. I need to generate parallel steps and than run it.

Can somebody try to help me what am I doing wrong? I just cant figure it out.

====codes===

=============== pipeline =========

def run = [:]

for (int i = 0; i <= 5; i++) {

  println "adding $i"

  def currentRun = {

node('master') {

bat 'echo "hello $i"'

    }

  }

  run.put("\"test $i\"", currentRun)

}

pipeline {

    agent none

    stages {

        stage('new'){

            steps {

                echo "${run}"

            }

        }

}

}

========== output ======================

[Pipeline] echo
adding 0
[Pipeline] echo
adding 1
[Pipeline] echo
adding 2
[Pipeline] echo
adding 3
[Pipeline] echo
adding 4
[Pipeline] echo
adding 5
[Pipeline] stage
[Pipeline] { (new)
[Pipeline] echo
["test 0":org.jenkinsci.plugins.workflow.cps.CpsClosure2@b42371, "test 1":org.jenkinsci.plugins.workflow.cps.CpsClosure2@1fd1631, "test 2":org.jenkinsci.plugins.workflow.cps.CpsClosure2@17e2b9d, "test 3":org.jenkinsci.plugins.workflow.cps.CpsClosure2@8ff06f, "test 4":org.jenkinsci.plugins.workflow.cps.CpsClosure2@1c1669d, "test 5":org.jenkinsci.plugins.workflow.cps.CpsClosure2@af7db5]
[Pipeline] }
[Pipeline] // stage
[Pipeline] End of Pipeline
Finished: SUCCESS

This looks that it should be working, but when I change    echo "${run}" to  parallel (run)   (or parallel ($run) / parallel "$run" etc...)

all i get is:

org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
WorkflowScript: 16: Nothing to execute within stage "new" @ line 16, column 9.
           stage('new'){
           ^
1 error

	at org.codehaus.groovy.control.ErrorCollector.failIfErrors(ErrorCollector.java:310)
	at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1073)
	at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:591)
	at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:569)
	at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:546)
	at groovy.lang.GroovyClassLoader.doParseClass(GroovyClassLoader.java:298)
	at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:268)
	at groovy.lang.GroovyShell.parseClass(GroovyShell.java:688)
	at groovy.lang.GroovyShell.parse(GroovyShell.java:700)
	at org.jenkinsci.plugins.workflow.cps.CpsGroovyShell.reparse(CpsGroovyShell.java:67)
	at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution.parseScript(CpsFlowExecution.java:430)
	at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution.start(CpsFlowExecution.java:393)
	at org.jenkinsci.plugins.workflow.job.WorkflowRun.run(WorkflowRun.java:238)
	at hudson.model.ResourceController.execute(ResourceController.java:98)
	at hudson.model.Executor.run(Executor.java:404)
Finished: FAILURE

[Bill Dennis]

You need to put the parallel in a script section like this (I chnanged the node tag to 'windows' as I have no executors on the master):

def run = [:]
for (int i = 0; i <= 5; i++) {
 println "adding $i"
 def currentRun = {

 node('windows') {

 echo "hello $i"
 }
 }
 run.put("\"test $i\"", currentRun)
}

pipeline {
 agent none
 stages {
 stage('new') {
 steps {

 script {
 parallel(run)
 }
 }
 }
 }
}

Also you don't need to do bat "echo" you can just do this, your bat step failed for me:

echo "hello $i"

--Bill

[Tomas Pekarovic]

Thank YOU you saved my life... that script was missing there

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