update LastTransitionTime for pod ready condition when node become notready

pkg/controller/util/node/BUILD

@@ -6,6 +6,7 @@ go_library(
     importpath = "k8s.io/kubernetes/pkg/controller/util/node",
     visibility = ["//visibility:public"],
     deps = [
+        "//pkg/api/v1/pod:go_default_library",
         "//pkg/apis/core:go_default_library",
         "//pkg/controller:go_default_library",
         "//pkg/kubelet/util/format:go_default_library",

pkg/controller/util/node/controller_utils.go

@@ -32,6 +32,7 @@ import (
 	"k8s.io/api/core/v1"
 	clientset "k8s.io/client-go/kubernetes"
 	appsv1listers "k8s.io/client-go/listers/apps/v1"
+	utilpod "k8s.io/kubernetes/pkg/api/v1/pod"
 	api "k8s.io/kubernetes/pkg/apis/core"
 	"k8s.io/kubernetes/pkg/controller"
 	"k8s.io/kubernetes/pkg/kubelet/util/format"
@@ -134,9 +135,12 @@ func MarkAllPodsNotReady(kubeClient clientset.Interface, node *v1.Node) error {
 			continue
 		}
 
-		for i, cond := range pod.Status.Conditions {
+		for _, cond := range pod.Status.Conditions {
 			if cond.Type == v1.PodReady {
-				pod.Status.Conditions[i].Status = v1.ConditionFalse
+				cond.Status = v1.ConditionFalse
+				if !utilpod.UpdatePodCondition(&pod.Status, &cond) {
+					break
+				}
 				klog.V(2).Infof("Updating ready status of pod %v to false", pod.Name)
 				_, err := kubeClient.CoreV1().Pods(pod.Namespace).UpdateStatus(&pod)
 				if err != nil {