jenkins docker-node-maintenance pipeline job

pipeline.groovy

@NonCPS
List <String> getOnlineNodeNames() {
  List <String> nodeNames = []
  
  for (node in Jenkins.getInstance().getNodes()) {
   if (node.getComputer().isOnline()) {  
    nodeNames.add(node.name.toString())
   }
  }
  return nodeNames
}

// The script triggers PayloadJob on every node.
// It uses Node and Label Parameter plugin to pass the job name to the payload job.
// The code will require approval of several Jenkins classes in the Script Security mode
def branches = [:]
for (nodeName in getOnlineNodeNames()) {
  // Into each branch we put the pipeline code we want to execute
  branches["node_" + nodeName] = {
    node("master") {
      echo "Triggering on " + nodeName
      build job: 'Maintenance/docker-node-maintenance', parameters: [
              new org.jvnet.jenkins.plugins.nodelabelparameter.NodeParameterValue
                  ("TARGET_NODE", "description", nodeName)
          ]
    }
  }
}

// Now we trigger all branches
parallel branches