Jenkins - Is there a way to remove all offline nodes (slaves) / batch remove nodes / delete all nodes?

问题

While using the Jenkins Docker Plugin, probably because of an error, swarms cannot be launched. I didn't pay attention and at the moment I have thousands of offline nodes, that were failed to launch.

BOTTOM LINE - Is there a way to batch remove nodes (slaves) in Jenkin, clean all offline nodes or even delete all nodes? Restating the Jenkins server didn't help, and I couldn't find a way in the Jenkins API.

Will appreciate any idea, before I'm starting to write a Selenium script or something...

Many thanks!

回答1:

There is this script with a section commented out to delete nodes.

It runs in the Jenkins script console

for (aSlave in hudson.model.Hudson.instance.slaves) {
  println('====================');
  println('Name: ' + aSlave.name);
  println('getLabelString: ' + aSlave.getLabelString());
  println('getNumExectutors: ' + aSlave.getNumExecutors());
  println('getRemoteFS: ' + aSlave.getRemoteFS());
  println('getMode: ' + aSlave.getMode());
  println('getRootPath: ' + aSlave.getRootPath());
  println('getDescriptor: ' + aSlave.getDescriptor());
  println('getComputer: ' + aSlave.getComputer());
  println('\tcomputer.isAcceptingTasks: ' + aSlave.getComputer().isAcceptingTasks());
  println('\tcomputer.isLaunchSupported: ' + aSlave.getComputer().isLaunchSupported());
  println('\tcomputer.getConnectTime: ' + aSlave.getComputer().getConnectTime());
  println('\tcomputer.getDemandStartMilliseconds: ' + aSlave.getComputer().getDemandStartMilliseconds());
  println('\tcomputer.isOffline: ' + aSlave.getComputer().isOffline());
  println('\tcomputer.countBusy: ' + aSlave.getComputer().countBusy());
  //if (aSlave.name == 'NAME OF NODE TO DELETE') {
  //  println('Shutting down node!!!!');
  //  aSlave.getComputer().setTemporarilyOffline(true,null);
  //  aSlave.getComputer().doDoDelete();
  //}
  println('\tcomputer.getLog: ' + aSlave.getComputer().getLog());
  println('\tcomputer.getBuilds: ' + aSlave.getComputer().getBuilds());
}

回答2:

This is the Copy>Paste>Run version of KeepCalmAndCarryOn answer. Go to manage Jenkins > Script Console > copy & paste this code > Run

for (aSlave in hudson.model.Hudson.instance.slaves) {
    if (aSlave.getComputer().isOffline()) {
        aSlave.getComputer().setTemporarilyOffline(true,null);
        aSlave.getComputer().doDoDelete();
    }
}

回答3:

Thanks for the great answer.

Another way of doing it is by manually editing the '${JENKINS_HOME}/config.xml' file (and find/replace by regex, for example).

来源：https://stackoverflow.com/questions/24072354/jenkins-is-there-a-way-to-remove-all-offline-nodes-slaves-batch-remove-nod