check Status.ObservedGeneration of DaemonSet

Signed-off-by: jackyu <jackyu@yunify.com>

pkg/kube/ready.go

@@ -286,6 +286,12 @@ func (c *ReadyChecker) daemonSetReady(ds *appsv1.DaemonSet) bool {
 		return true
 	}
 
+	// the resource not generated by DaemonSet controller.
+	if ds.Status.ObservedGeneration == 0 {
+		c.log("DaemonSet is not ready: %s/%s, The most recent generation is 0.", ds.Namespace, ds.Name)
+		return false
+	}
+
 	// Make sure all the updated pods have been scheduled
 	if ds.Status.UpdatedNumberScheduled != ds.Status.DesiredNumberScheduled {
 		c.log("DaemonSet is not ready: %s/%s. %d out of %d expected pods have been scheduled", ds.Namespace, ds.Name, ds.Status.UpdatedNumberScheduled, ds.Status.DesiredNumberScheduled)