Jenkins DSL Pipeline: delete a job from its pipeline

I have a Jenkins pipeline job that (among other things) creates another pipelineJob (to cleanup everything afterwards) using Job DSL plugin.

pipeline {

    agent { label 'Deployment' }

    stages {
        stage('Clean working directory and Checkout') {
            steps {
                deleteDir()
                checkout scm
            }
        }

        // Complex logic omitted

        stage('Generate cleanup job') {
            steps {
                build job: 'cleanup-job-template',
                        parameters: [
                                string(name: 'REGION', value: "${REGION}"),
                                string(name: 'DEPLOYMENT_TYPE', value: "${DEPLOYMENT_TYPE}")
                        ]
            }
        }
    }
}

The thing is that I need this newly generated job to be built only once and then, if the build was successful, the job should be deleted.

pipeline {
   stages {
        stage('Cleanup afterwards') {
            // cleanup logic
        }
   }
    post { 
        success { 
            // delete this job?
        }
    }

}

I thought, that this can be done using Pipeline Post Action, but, unfortunately, I couldn't find any out-of-the-box solution for this. Is it possible to achieve this at all?

You can achieve this using the post Groovy and then you will need to write some groovy code in order to delete the job:

#!/usr/bin/env groovy
import hudson.model.*
pipeline {
   agent none
   stages {
        stage('Cleanup afterwards') {
            // cleanup logic
            steps {
                node('worker') {
                    sh 'ls -la'
                }
            }
        }
   }
   post { 
       success { 
           script {
               jobsToDelete = ["<JOB_TO_DELETE"]
               deleteJob(Hudson.instance.items, jobsToDelete)
           }
       }
   }
}

def deleteJob(items, jobsToDelete) {
    items.each { item ->
      if (item.class.canonicalName != 'com.cloudbees.hudson.plugins.folder.Folder') {
        if (jobsToDelete.contains(item.fullName)) {
          manager.listener.logger.println(item.fullName)
          item.delete()
        }
      }
    }
}

Tested both cases and work on Jenkins 2.89.4