return fmt.Sprintf("%s/%d/%s", ds.UID, ds.Status.ObservedGeneration, nodeName)
}

// getUnscheduledPodsWithoutNode returns list of unscheduled pods assigned to not existing nodes.
// Returned pods can't be deleted by PodGCController so they should be deleted by DaemonSetController.
func getUnscheduledPodsWithoutNode(runningNodesList []*v1.Node, nodeToDaemonPods map[string][]*v1.Pod) []string {
	var results []string