Cancel queued builds and aborting executing builds using Groovy for Jenkins

Referencie: https://xanderx.com/post/cancel-all-queued-jenkins-jobs/

Run this in Manage Jenkins > Script Console:

Jenkins.instance.queue.clear()

I know it's kind of an old question, but Google points me to this one. The scripts shown here only remove the jobs from the queue, and don't stop running builds. The following script, just removes everything from the queue and kills all running builds:

  import java.util.ArrayList
  import hudson.model.*;
  import jenkins.model.Jenkins

  // Remove everything which is currently queued
  def q = Jenkins.instance.queue
  for (queued in Jenkins.instance.queue.items) {
    q.cancel(queued.task)
  }

  // stop all the currently running jobs
  for (job in Jenkins.instance.items) {
    stopJobs(job)
  }

  def stopJobs(job) {
    if (job in com.cloudbees.hudson.plugins.folder.Folder) {
      for (child in job.items) {
        stopJobs(child)
      }    
    } else if (job in org.jenkinsci.plugins.workflow.multibranch.WorkflowMultiBranchProject) {
      for (child in job.items) {
        stopJobs(child)
      }
    } else if (job in org.jenkinsci.plugins.workflow.job.WorkflowJob) {

      if (job.isBuilding()) {
        for (build in job.builds) {
        build.doKill()
        }
      }
    }
  }

I haven't tested it myself, but looking at the API it should be possible in the following way:

import hudson.model.*
import jenkins.model.Jenkins

def q = Jenkins.instance.queue

q.items.findAll { it.task.name.startsWith('my') }.each { q.cancel(it.task) }

Relevant API links:

• http://javadoc.jenkins-ci.org/jenkins/model/Jenkins.html
• http://javadoc.jenkins-ci.org/hudson/model/Queue.html