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StatefulSet should not launch Pod i, if a Pod in the sequence [0,i) has its

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DeletionTimestamp set. Fixes 44229.
Rename isTerminated to isTerminating
Adds a test case for at the unit level to prevent regression
This commit is contained in:
Kenneth Owens
2017-04-20 09:10:46 -07:00
parent 8e3d32b141
commit 7d22e64284
4 changed files with 82 additions and 9 deletions
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70
pkg/controller/statefulset/stateful_set_control_test.go
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@@ -404,6 +404,72 @@ func TestDefaultStatefulSetControlUpdatePodFailure(t *testing.T) {
}
}
func TestDefaultStatefulSetControlBlocksOnTerminating(t *testing.T) {
set := newStatefulSet(3)
client := fake.NewSimpleClientset(set)
informerFactory := informers.NewSharedInformerFactory(client, controller.NoResyncPeriodFunc())
spc := newFakeStatefulPodControl(informerFactory.Core().V1().Pods(), informerFactory.Apps().V1beta1().StatefulSets())
ssc := NewDefaultStatefulSetControl(spc)
spc.SetUpdateStatefulPodError(apierrors.NewInternalError(errors.New("API server failed")), 0)
stop := make(chan struct{})
defer close(stop)
informerFactory.Start(stop)
cache.WaitForCacheSync(
stop,
informerFactory.Apps().V1beta1().StatefulSets().Informer().HasSynced,
informerFactory.Core().V1().Pods().Informer().HasSynced,
)
if err := scaleUpStatefulSetControl(set, ssc, spc); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
var err error
set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
if err != nil {
t.Fatalf("Error getting updated StatefulSet: %v", err)
}
if set.Status.Replicas != 3 {
t.Fatal("Failed to scale StatefulSet to 3 replicas")
}
// scale the set and add a terminated pod
*set.Spec.Replicas = 4
pods, err := spc.addTerminatingPod(set, 2)
if err != nil {
t.Fatal(err)
}
if err := ssc.UpdateStatefulSet(set, pods); err != nil {
t.Fatal(err)
}
pods, err = spc.podsLister.List(labels.Everything())
if err != nil {
t.Fatalf("Error listing pods: %v", err)
}
if len(pods) != 3 {
t.Fatalf("Expected 3 pods, got %d", len(pods))
}
sort.Sort(ascendingOrdinal(pods))
spc.DeleteStatefulPod(set, pods[2])
pods, err = spc.podsLister.List(labels.Everything())
if err != nil {
t.Fatalf("Error listing pods: %v", err)
}
if len(pods) != 2 {
t.Fatalf("Expected 3 pods, got %d", len(pods))
}
if err := scaleUpStatefulSetControl(set, ssc, spc); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
if err != nil {
t.Fatalf("Error getting updated StatefulSet: %v", err)
}
if set.Status.Replicas != 4 {
t.Fatal("Failed to scale StatefulSet to 3 replicas")
}
}
func TestDefaultStatefulSetControlUpdateSetStatusFailure(t *testing.T) {
set := newStatefulSet(3)
client := fake.NewSimpleClientset(set)
@@ -691,7 +757,7 @@ func (spc *fakeStatefulPodControl) setPodInitStatus(set *apps.StatefulSet, ordin
return spc.podsLister.Pods(set.Namespace).List(selector)
}
func (spc *fakeStatefulPodControl) addTerminatedPod(set *apps.StatefulSet, ordinal int) ([]*v1.Pod, error) {
func (spc *fakeStatefulPodControl) addTerminatingPod(set *apps.StatefulSet, ordinal int) ([]*v1.Pod, error) {
pod := newStatefulSetPod(set, ordinal)
pod.Status.Phase = v1.PodRunning
deleted := metav1.NewTime(time.Now())
@@ -907,7 +973,7 @@ func scaleDownStatefulSetControl(set *apps.StatefulSet, ssc StatefulSetControlIn
if err != nil {
return err
}
if pods, err = spc.addTerminatedPod(set, ordinal); err != nil {
if pods, err = spc.addTerminatingPod(set, ordinal); err != nil {
return err
}
if err = ssc.UpdateStatefulSet(set, pods); err != nil {