add description for pod readiness gate

pkg/printers/internalversion/describe.go

@@ -679,6 +679,21 @@ func describePod(pod *api.Pod, events *api.EventList) (string, error) {
 			describeContainers("Init Containers", pod.Spec.InitContainers, pod.Status.InitContainerStatuses, EnvValueRetriever(pod), w, "")
 		}
 		describeContainers("Containers", pod.Spec.Containers, pod.Status.ContainerStatuses, EnvValueRetriever(pod), w, "")
+		if len(pod.Spec.ReadinessGates) > 0 {
+			w.Write(LEVEL_0, "Readiness Gates:\n  Type\tStatus\n")
+			for _, g := range pod.Spec.ReadinessGates {
+				status := "<none>"
+				for _, c := range pod.Status.Conditions {
+					if c.Type == g.ConditionType {
+						status = fmt.Sprintf("%v", c.Status)
+						break
+					}
+				}
+				w.Write(LEVEL_1, "%v \t%v \n",
+					g.ConditionType,
+					status)
+			}
+		}
 		if len(pod.Status.Conditions) > 0 {
 			w.Write(LEVEL_0, "Conditions:\n  Type\tStatus\n")
 			for _, c := range pod.Status.Conditions {

pkg/printers/internalversion/describe_test.go

@@ -55,6 +55,8 @@ type describeClient struct {
 func TestDescribePod(t *testing.T) {
 	deletionTimestamp := metav1.Time{Time: time.Now().UTC().AddDate(10, 0, 0)}
 	gracePeriod := int64(1234)
+	condition1 := api.PodConditionType("condition1")
+	condition2 := api.PodConditionType("condition2")
 	fake := fake.NewSimpleClientset(&api.Pod{
 		ObjectMeta: metav1.ObjectMeta{
 			Name:                       "bar",
@@ -62,6 +64,24 @@ func TestDescribePod(t *testing.T) {
 			DeletionTimestamp:          &deletionTimestamp,
 			DeletionGracePeriodSeconds: &gracePeriod,
 		},
+		Spec: api.PodSpec{
+			ReadinessGates: []api.PodReadinessGate{
+				{
+					ConditionType: condition1,
+				},
+				{
+					ConditionType: condition2,
+				},
+			},
+		},
+		Status: api.PodStatus{
+			Conditions: []api.PodCondition{
+				{
+					Type:   condition1,
+					Status: api.ConditionTrue,
+				},
+			},
+		},
 	})
 	c := &describeClient{T: t, Namespace: "foo", Interface: fake}
 	d := PodDescriber{c}