[FIXED] How to execute next stage in sequential stages inspite of previous stage failure in Jenkins pipeline

Issue

At the moment I have two stages defined in Jenkins because they both need different agents.

Here is my Proof of concept code

stages {
    stage("Run Tests"){
        agent docker
        stage("Do setup"){}
        stage("Testing") {}
        post{
            always{
                echo "always"
            }
            failure {
                echo "failure"
            }
        }
    }
    stage("Generate Reports"){
        agent node-label
        stage("Generate"){

        }
    }
}

I need "Generate reports" on different agent since certain binaries are on the node and not inside docker container. Tests run inside docker share volume on node so I get all artifacts that are needed to generate report on the node

(I have tried to run "Generate reports" in post stage, but it seems to run inside docker container somehow.)

Now if "Run Tests" fails, "Generate reports" is skipped due to previous stage failure. Any idea how I can force "Generate reports" stage to be run even on failure of previous stage.

Solution

Below is the pipeline.

pipeline {
agent none
stages {
    stage("Run Tests"){
    agent { label "agent1" }
        stages  {           
            stage("Do setup"){
                steps{
                    sh 'exit 0'
                    }
                }
            stage("Testing") {
                steps {
                    catchError(buildResult: 'SUCCESS', stageResult: 'FAILURE') {
                    sh "exit 1"
                        } //catchError
                    } //steps
                post{
                    always{
                        echo "always"
                        }
                    failure {
                        echo "failure"
                        }
                    } // post
                } // Testing
            } // stages
        } // Run Test

    stage("Generate Reports"){
        agent { label "agent2" }
            steps {
                sh 'exit 0'
            }
        } // Reports
    }    
}

The pipeline is successful, but stage Testing is showed as failed, you can choose the status of buildResult and stageResult in case you want it to be unstable or fail:

Answered By - alpha89