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Merge pull request #84984 from cofyc/fix84942
apps/StatefulSets: Garbage collector should be able to orphan ControllerRevisions too
This commit is contained in:
commit
7fe64ccb82
@ -23,7 +23,7 @@ import (
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"time"
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apps "k8s.io/api/apps/v1"
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"k8s.io/api/core/v1"
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v1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/api/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/labels"
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@ -289,9 +289,14 @@ func (ssc *StatefulSetController) getPodsForStatefulSet(set *apps.StatefulSet, s
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return isMemberOf(set, pod)
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}
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// If any adoptions are attempted, we should first recheck for deletion with
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// an uncached quorum read sometime after listing Pods (see #42639).
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canAdoptFunc := controller.RecheckDeletionTimestamp(func() (metav1.Object, error) {
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cm := controller.NewPodControllerRefManager(ssc.podControl, set, selector, controllerKind, ssc.canAdoptFunc(set))
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return cm.ClaimPods(pods, filter)
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}
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// If any adoptions are attempted, we should first recheck for deletion with
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// an uncached quorum read sometime after listing Pods/ControllerRevisions (see #42639).
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func (ssc *StatefulSetController) canAdoptFunc(set *apps.StatefulSet) func() error {
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return controller.RecheckDeletionTimestamp(func() (metav1.Object, error) {
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fresh, err := ssc.kubeClient.AppsV1().StatefulSets(set.Namespace).Get(context.TODO(), set.Name, metav1.GetOptions{})
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if err != nil {
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return nil, err
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@ -301,9 +306,6 @@ func (ssc *StatefulSetController) getPodsForStatefulSet(set *apps.StatefulSet, s
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}
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return fresh, nil
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})
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cm := controller.NewPodControllerRefManager(ssc.podControl, set, selector, controllerKind, canAdoptFunc)
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return cm.ClaimPods(pods, filter)
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}
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// adoptOrphanRevisions adopts any orphaned ControllerRevisions matched by set's Selector.
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@ -319,12 +321,9 @@ func (ssc *StatefulSetController) adoptOrphanRevisions(set *apps.StatefulSet) er
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}
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}
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if len(orphanRevisions) > 0 {
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fresh, err := ssc.kubeClient.AppsV1().StatefulSets(set.Namespace).Get(context.TODO(), set.Name, metav1.GetOptions{})
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if err != nil {
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return err
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}
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if fresh.UID != set.UID {
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return fmt.Errorf("original StatefulSet %v/%v is gone: got uid %v, wanted %v", set.Namespace, set.Name, fresh.UID, set.UID)
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canAdoptErr := ssc.canAdoptFunc(set)()
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if canAdoptErr != nil {
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return fmt.Errorf("can't adopt ControllerRevisions: %v", canAdoptErr)
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}
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return ssc.control.AdoptOrphanRevisions(set, orphanRevisions)
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}
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@ -23,7 +23,7 @@ import (
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"testing"
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apps "k8s.io/api/apps/v1"
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"k8s.io/api/core/v1"
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v1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/types"
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@ -42,7 +42,7 @@ func alwaysReady() bool { return true }
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func TestStatefulSetControllerCreates(t *testing.T) {
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set := newStatefulSet(3)
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ssc, spc := newFakeStatefulSetController(set)
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ssc, spc, _ := newFakeStatefulSetController(set)
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if err := scaleUpStatefulSetController(set, ssc, spc); err != nil {
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t.Errorf("Failed to turn up StatefulSet : %s", err)
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}
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@ -58,7 +58,7 @@ func TestStatefulSetControllerCreates(t *testing.T) {
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func TestStatefulSetControllerDeletes(t *testing.T) {
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set := newStatefulSet(3)
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ssc, spc := newFakeStatefulSetController(set)
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ssc, spc, _ := newFakeStatefulSetController(set)
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if err := scaleUpStatefulSetController(set, ssc, spc); err != nil {
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t.Errorf("Failed to turn up StatefulSet : %s", err)
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}
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@ -86,7 +86,7 @@ func TestStatefulSetControllerDeletes(t *testing.T) {
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func TestStatefulSetControllerRespectsTermination(t *testing.T) {
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set := newStatefulSet(3)
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ssc, spc := newFakeStatefulSetController(set)
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ssc, spc, _ := newFakeStatefulSetController(set)
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if err := scaleUpStatefulSetController(set, ssc, spc); err != nil {
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t.Errorf("Failed to turn up StatefulSet : %s", err)
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}
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@ -137,7 +137,7 @@ func TestStatefulSetControllerRespectsTermination(t *testing.T) {
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func TestStatefulSetControllerBlocksScaling(t *testing.T) {
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set := newStatefulSet(3)
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ssc, spc := newFakeStatefulSetController(set)
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ssc, spc, _ := newFakeStatefulSetController(set)
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if err := scaleUpStatefulSetController(set, ssc, spc); err != nil {
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t.Errorf("Failed to turn up StatefulSet : %s", err)
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}
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@ -185,7 +185,7 @@ func TestStatefulSetControllerBlocksScaling(t *testing.T) {
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func TestStatefulSetControllerDeletionTimestamp(t *testing.T) {
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set := newStatefulSet(3)
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set.DeletionTimestamp = new(metav1.Time)
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ssc, spc := newFakeStatefulSetController(set)
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ssc, spc, _ := newFakeStatefulSetController(set)
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spc.setsIndexer.Add(set)
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@ -210,7 +210,7 @@ func TestStatefulSetControllerDeletionTimestampRace(t *testing.T) {
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set := newStatefulSet(3)
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// The bare client says it IS deleted.
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set.DeletionTimestamp = new(metav1.Time)
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ssc, spc := newFakeStatefulSetController(set)
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ssc, spc, ssh := newFakeStatefulSetController(set)
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// The lister (cache) says it's NOT deleted.
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set2 := *set
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@ -221,6 +221,16 @@ func TestStatefulSetControllerDeletionTimestampRace(t *testing.T) {
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pod := newStatefulSetPod(set, 1)
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pod.OwnerReferences = nil
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spc.podsIndexer.Add(pod)
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set.Status.CollisionCount = new(int32)
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revision, err := newRevision(set, 1, set.Status.CollisionCount)
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if err != nil {
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t.Fatal(err)
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}
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revision.OwnerReferences = nil
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revision, err = ssh.CreateControllerRevision(set, revision, set.Status.CollisionCount)
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if err != nil {
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t.Fatal(err)
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}
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// Force a sync. It should not try to create any Pods.
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ssc.enqueueStatefulSet(set)
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@ -237,10 +247,31 @@ func TestStatefulSetControllerDeletionTimestampRace(t *testing.T) {
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if got, want := len(pods), 1; got != want {
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t.Errorf("len(pods) = %v, want %v", got, want)
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}
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// It should not adopt pods.
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for _, pod := range pods {
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if len(pod.OwnerReferences) > 0 {
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t.Errorf("unexpect pod owner references: %v", pod.OwnerReferences)
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}
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}
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// It should not adopt revisions.
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revisions, err := ssh.ListControllerRevisions(set, selector)
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if err != nil {
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t.Fatal(err)
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}
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if got, want := len(revisions), 1; got != want {
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t.Errorf("len(revisions) = %v, want %v", got, want)
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}
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for _, revision := range revisions {
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if len(revision.OwnerReferences) > 0 {
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t.Errorf("unexpect revision owner references: %v", revision.OwnerReferences)
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}
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}
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}
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func TestStatefulSetControllerAddPod(t *testing.T) {
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ssc, spc := newFakeStatefulSetController()
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ssc, spc, _ := newFakeStatefulSetController()
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set1 := newStatefulSet(3)
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set2 := newStatefulSet(3)
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pod1 := newStatefulSetPod(set1, 0)
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@ -272,7 +303,7 @@ func TestStatefulSetControllerAddPod(t *testing.T) {
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}
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func TestStatefulSetControllerAddPodOrphan(t *testing.T) {
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ssc, spc := newFakeStatefulSetController()
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ssc, spc, _ := newFakeStatefulSetController()
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set1 := newStatefulSet(3)
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set2 := newStatefulSet(3)
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set2.Name = "foo2"
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@ -293,7 +324,7 @@ func TestStatefulSetControllerAddPodOrphan(t *testing.T) {
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}
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func TestStatefulSetControllerAddPodNoSet(t *testing.T) {
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ssc, _ := newFakeStatefulSetController()
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ssc, _, _ := newFakeStatefulSetController()
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set := newStatefulSet(3)
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pod := newStatefulSetPod(set, 0)
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ssc.addPod(pod)
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@ -305,7 +336,7 @@ func TestStatefulSetControllerAddPodNoSet(t *testing.T) {
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}
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func TestStatefulSetControllerUpdatePod(t *testing.T) {
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ssc, spc := newFakeStatefulSetController()
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ssc, spc, _ := newFakeStatefulSetController()
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set1 := newStatefulSet(3)
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set2 := newStatefulSet(3)
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set2.Name = "foo2"
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@ -340,7 +371,7 @@ func TestStatefulSetControllerUpdatePod(t *testing.T) {
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}
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func TestStatefulSetControllerUpdatePodWithNoSet(t *testing.T) {
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ssc, _ := newFakeStatefulSetController()
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ssc, _, _ := newFakeStatefulSetController()
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set := newStatefulSet(3)
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pod := newStatefulSetPod(set, 0)
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prev := *pod
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@ -354,7 +385,7 @@ func TestStatefulSetControllerUpdatePodWithNoSet(t *testing.T) {
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}
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func TestStatefulSetControllerUpdatePodWithSameVersion(t *testing.T) {
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ssc, spc := newFakeStatefulSetController()
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ssc, spc, _ := newFakeStatefulSetController()
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set := newStatefulSet(3)
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pod := newStatefulSetPod(set, 0)
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spc.setsIndexer.Add(set)
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@ -367,7 +398,7 @@ func TestStatefulSetControllerUpdatePodWithSameVersion(t *testing.T) {
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}
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func TestStatefulSetControllerUpdatePodOrphanWithNewLabels(t *testing.T) {
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ssc, spc := newFakeStatefulSetController()
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ssc, spc, _ := newFakeStatefulSetController()
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set := newStatefulSet(3)
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pod := newStatefulSetPod(set, 0)
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pod.OwnerReferences = nil
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@ -385,7 +416,7 @@ func TestStatefulSetControllerUpdatePodOrphanWithNewLabels(t *testing.T) {
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}
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func TestStatefulSetControllerUpdatePodChangeControllerRef(t *testing.T) {
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ssc, spc := newFakeStatefulSetController()
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ssc, spc, _ := newFakeStatefulSetController()
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set := newStatefulSet(3)
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set2 := newStatefulSet(3)
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set2.Name = "foo2"
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@ -403,7 +434,7 @@ func TestStatefulSetControllerUpdatePodChangeControllerRef(t *testing.T) {
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}
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func TestStatefulSetControllerUpdatePodRelease(t *testing.T) {
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ssc, spc := newFakeStatefulSetController()
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ssc, spc, _ := newFakeStatefulSetController()
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set := newStatefulSet(3)
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set2 := newStatefulSet(3)
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set2.Name = "foo2"
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@ -420,7 +451,7 @@ func TestStatefulSetControllerUpdatePodRelease(t *testing.T) {
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}
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func TestStatefulSetControllerDeletePod(t *testing.T) {
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ssc, spc := newFakeStatefulSetController()
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ssc, spc, _ := newFakeStatefulSetController()
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set1 := newStatefulSet(3)
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set2 := newStatefulSet(3)
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set2.Name = "foo2"
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@ -451,7 +482,7 @@ func TestStatefulSetControllerDeletePod(t *testing.T) {
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}
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func TestStatefulSetControllerDeletePodOrphan(t *testing.T) {
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ssc, spc := newFakeStatefulSetController()
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ssc, spc, _ := newFakeStatefulSetController()
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set1 := newStatefulSet(3)
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set2 := newStatefulSet(3)
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set2.Name = "foo2"
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@ -467,7 +498,7 @@ func TestStatefulSetControllerDeletePodOrphan(t *testing.T) {
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}
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func TestStatefulSetControllerDeletePodTombstone(t *testing.T) {
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ssc, spc := newFakeStatefulSetController()
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ssc, spc, _ := newFakeStatefulSetController()
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set := newStatefulSet(3)
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pod := newStatefulSetPod(set, 0)
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spc.setsIndexer.Add(set)
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@ -485,7 +516,7 @@ func TestStatefulSetControllerDeletePodTombstone(t *testing.T) {
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}
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func TestStatefulSetControllerGetStatefulSetsForPod(t *testing.T) {
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ssc, spc := newFakeStatefulSetController()
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ssc, spc, _ := newFakeStatefulSetController()
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set1 := newStatefulSet(3)
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set2 := newStatefulSet(3)
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set2.Name = "foo2"
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@ -514,7 +545,7 @@ func TestGetPodsForStatefulSetAdopt(t *testing.T) {
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pod4.OwnerReferences = nil
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pod4.Name = "x" + pod4.Name
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ssc, spc := newFakeStatefulSetController(set, pod1, pod2, pod3, pod4)
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ssc, spc, _ := newFakeStatefulSetController(set, pod1, pod2, pod3, pod4)
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spc.podsIndexer.Add(pod1)
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spc.podsIndexer.Add(pod2)
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@ -556,7 +587,7 @@ func TestAdoptOrphanRevisions(t *testing.T) {
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ss1Rev2.Namespace = ss1.Namespace
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ss1Rev2.OwnerReferences = []metav1.OwnerReference{}
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ssc, spc := newFakeStatefulSetController(ss1, ss1Rev1, ss1Rev2)
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ssc, spc, _ := newFakeStatefulSetController(ss1, ss1Rev1, ss1Rev2)
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spc.revisionsIndexer.Add(ss1Rev1)
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spc.revisionsIndexer.Add(ss1Rev2)
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@ -583,7 +614,7 @@ func TestAdoptOrphanRevisions(t *testing.T) {
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func TestGetPodsForStatefulSetRelease(t *testing.T) {
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set := newStatefulSet(3)
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ssc, spc := newFakeStatefulSetController(set)
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ssc, spc, _ := newFakeStatefulSetController(set)
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pod1 := newStatefulSetPod(set, 1)
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// pod2 is owned but has wrong name.
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pod2 := newStatefulSetPod(set, 2)
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@ -619,7 +650,7 @@ func TestGetPodsForStatefulSetRelease(t *testing.T) {
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}
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}
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func newFakeStatefulSetController(initialObjects ...runtime.Object) (*StatefulSetController, *fakeStatefulPodControl) {
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func newFakeStatefulSetController(initialObjects ...runtime.Object) (*StatefulSetController, *fakeStatefulPodControl, history.Interface) {
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client := fake.NewSimpleClientset(initialObjects...)
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informerFactory := informers.NewSharedInformerFactory(client, controller.NoResyncPeriodFunc())
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fpc := newFakeStatefulPodControl(informerFactory.Core().V1().Pods(), informerFactory.Apps().V1().StatefulSets(), informerFactory.Apps().V1().ControllerRevisions())
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@ -637,7 +668,7 @@ func newFakeStatefulSetController(initialObjects ...runtime.Object) (*StatefulSe
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recorder := record.NewFakeRecorder(10)
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ssc.control = NewDefaultStatefulSetControl(fpc, ssu, ssh, recorder)
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return ssc, fpc
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return ssc, fpc, ssh
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}
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func fakeWorker(ssc *StatefulSetController) {
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