Jenkins will by default continue jobs that have been stopped when it
restarts. What if you don’t want to do this? There are two ways.
One way is to install the Quiet Start plugin. If that is not
available or not possible, a second way is to add some code in
init.groovy.d. This looks like some pretty good code:
import jenkins.model.Jenkins
import hudson.security.ACL
// Go into quiet mode
Jenkins.instance.doQuietDown()
// Wake up after an async wait
Thread.start {
// doCancelQuietDown requires admin privileges
ACL.impersonate(ACL.SYSTEM)
// Sleep 5 minutes, in milliseconds
Thread.sleep(5 * 60 * 1000)
Jenkins.instance.doCancelQuietDown()
}
It sets the “preparing for shutdown” state to prevent jobs from starting, and it also creates a timeout thread to change back to normal after the timeout elapses.
20200102/DuckDuckGo jenkins do not resume jobs after restart
20200102/https://issues.jenkins-ci.org/browse/JENKINS-48245
20200102/https://issues.jenkins-ci.org/browse/JENKINS-51539
20200102/DuckDuckGo jenkins do not restart jobs
20200102/DuckDuckGo jenkins disable job restart
20200102/https://support.cloudbees.com/hc/en-us/articles/203737684/-How-can-I-prevent-jenkins-from-starting-new-jobs-after-a-restart-
20200102/DuckDuckGo jenkins groovy cancel all jobs
20200102/https://stackoverflow.com/questions/12305244/cancel-queued-builds-and-aborting-executing-builds-using-groovy-for-jenkins
20200102/DuckDuckGo jenkins do quiet down restart
20200102/https://www.praqma.com/stories/jenkins-quiet-startup