issue 7036: fail early by peek expose

Signed-off-by: Lyndon-Li <lyonghui@vmware.com>

pkg/util/kube/pod.go

@@ -123,9 +123,9 @@ func IsPodUnrecoverable(pod *corev1api.Pod, log logrus.FieldLogger) (bool, strin
 
 	if pod.Status.Phase == corev1api.PodPending && len(pod.Status.Conditions) > 0 {
 		for _, condition := range pod.Status.Conditions {
-			if condition.Type == "PodScheduled" && condition.Reason == "Unschedulable" {
+			if condition.Type == corev1api.PodScheduled && condition.Reason == "Unschedulable" {
 				log.Warnf("Pod is unschedulable %s", condition.Message)
-				return true, fmt.Sprintf("Pod is unschedulable %s", condition.Message)
+				return true, fmt.Sprintf("Pod is unschedulable: %s", condition.Message)
 			}
 		}
 	}

pkg/util/kube/pod_test.go

@@ -401,6 +401,21 @@ func TestIsPodUnrecoverable(t *testing.T) {
 			},
 			want: false,
 		},
+		{
+			name: "pod is unschedulable",
+			pod: &corev1api.Pod{
+				Status: corev1api.PodStatus{
+					Phase: corev1api.PodPending,
+					Conditions: []corev1api.PodCondition{
+						{
+							Type:   corev1api.PodScheduled,
+							Reason: "Unschedulable",
+						},
+					},
+				},
+			},
+			want: true,
+		},
 		{
 			name: "pod is normal",
 			pod: &corev1api.Pod{