"Build Periodically" with a Multi-branch Pipeline in Jenkins
If you use a declarative style Pipeline and only want to trigger the build on a specific branch you can do something like this:
String cron_string = BRANCH_NAME == "master" ? "@hourly" : ""pipeline { agent none triggers { cron(cron_string) } stages { // do something }}Found on Jenkins Jira
If you are using a declarative style Jenkinsfile then you use the triggers directive.
pipeline { agent any triggers { cron('H 4/* 0 0 1-5') } stages { stage('Example') { steps { echo 'Hello World' } } }}
I was able to find an example illustrating this an discarding old builds, which is also something I wanted.
Jenkinsfile in jenkins-infra/jenkins.io:
properties( [ [ $class: 'BuildDiscarderProperty', strategy: [$class: 'LogRotator', numToKeepStr: '10'] ], pipelineTriggers([cron('H/30 * * * *')]), ])