[FIXED] Running multiple steps in sequenze in one parallel block In Jenkinsfile

Issue

I'm trying to optimize my pipeline. I'm using the pipeline to generate and deploy some docs. At the end I clear my document root and write the newly generated docs into the document root. I'm doing this for several stages in parallel.

o-----o-----o--+--o--+---+--o--+-----o
               |     |   |     |
               +--o--+   +--o--+
               |     |   |     |
               +--o--+   +--o--+

this is the pipeline exerpt for the parallel stages

stage("clear nfs directory") {
    steps {
        parallel(
            test: {
                sh "rm -rf /mnt/nfs/test/docs/$pipelineParams.groupname"
                sh "mkdir /mnt/nfs/test/docs/$pipelineParams.groupname"
            },
            rele: {
                sh "rm -rf /mnt/nfs/rele/docs/$pipelineParams.groupname"
                sh "mkdir /mnt/nfs/rele/docs/$pipelineParams.groupname"
            },
            prod: {
                sh "rm -rf /mnt/nfs/prod/docs/$pipelineParams.groupname"
                sh "mkdir /mnt/nfs/prod/docs/$pipelineParams.groupname"
            }
        )
    }
}

stage("copy generated docs to nfs directory") {
    steps {
        parallel(
            test: {
                dir("target/public") {
                    sh "cp -r * /mnt/nfs/test/docs/$pipelineParams.groupname"
                }
            },
            rele: {
                dir("target/public") {
                    sh "cp -r * /mnt/nfs/rele/docs/$pipelineParams.groupname"
                }
            },
            prod: {
                dir("target/public") {
                    sh "cp -r * /mnt/nfs/prod/docs/$pipelineParams.groupname"
                }
            }
        )
    }
}

Since clear and write should depend on each other I would like to refactor the pipeline into a more sequential design (running multiple steps in sequence in less parallel steps)

o-----o-----o--+--o---o--+-----o
               |         |
               +--o---o--+
               |         |
               +--o---o--+

I'm not sure how to run multiple steps in the same parallel block ... can anyone give me a hint? Thanks guys

Solution

Please see below reference which will allow you to run multiple steps in same parallel block.
You would need to use sequential stages which will give below output :

o-----o-----o--+--o---o--+-----o
               |         |
               +--o---o--+
               |         |
               +--o---o--+

pipeline {
  agent { label 'master' }
  stages {
    stage('Build and Test') {
      parallel {
        stage("Build and Test Linux") {
          stages {
            stage("Build (Linux)") {
              agent any
              steps {
                echo "Inside for loop 1"
              }
            }
            stage("Test (Linux)") {
              agent any
              steps {
                echo "Inside for loop 2"
              }
            }
          }
        }
        stage("Build and Test Windows") {
          stages {
            stage("Build (Windows)") {
              agent any
              steps {
                echo "Inside for loop 3"
              }
            }
            stage("Test (Windows)") {
              agent any
              steps {
                echo "Inside for loop 4"
              }
            }
          }
        }
      }
    }
  }
}

For more info see:- https://www.jenkins.io/blog/2018/07/02/whats-new-declarative-piepline-13x-sequential-stages/

Below link gives reference example:
https://issues.jenkins.io/browse/JENKINS-55438

Answered By - Altaf