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Avoid mutation of PVC in stateful set controller shared cache

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Change-Id: Ieb8e443e460150d16524ca1c1fb3770f546b2c28
This commit is contained in:
Matthew Cary 2023-01-05 16:59:04 -08:00
parent 2e3055863d
commit ed18ab54ba
2 changed files with 6 additions and 0 deletions
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1
pkg/controller/statefulset/stateful_pod_control.go
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@ -241,6 +241,7 @@ func (spc *StatefulPodControl) UpdatePodClaimForRetentionPolicy(set *apps.Statef
return fmt.Errorf("Could not retrieve claim %s not found for %s when checking PVC deletion policy: %w", claimName, pod.Name, err) return fmt.Errorf("Could not retrieve claim %s not found for %s when checking PVC deletion policy: %w", claimName, pod.Name, err)
default: default:
if !claimOwnerMatchesSetAndPod(claim, set, pod) { if !claimOwnerMatchesSetAndPod(claim, set, pod) {
claim = claim.DeepCopy() // Make a copy so we don't mutate the shared cache.
needsUpdate := updateClaimOwnerRefForSetAndPod(claim, set, pod) needsUpdate := updateClaimOwnerRefForSetAndPod(claim, set, pod)
if needsUpdate { if needsUpdate {
err := spc.objectMgr.UpdateClaim(claim) err := spc.objectMgr.UpdateClaim(claim)

5
pkg/controller/statefulset/stateful_pod_control_test.go
View File

@ -536,6 +536,11 @@ func TestStatefulPodControlUpdatePodClaimForRetentionPolicy(t *testing.T) {
fakeClient := &fake.Clientset{} fakeClient := &fake.Clientset{}
indexer := cache.NewIndexer(cache.MetaNamespaceKeyFunc, cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}) indexer := cache.NewIndexer(cache.MetaNamespaceKeyFunc, cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc})
claimLister := corelisters.NewPersistentVolumeClaimLister(indexer) claimLister := corelisters.NewPersistentVolumeClaimLister(indexer)
fakeClient.AddReactor("update", "persistentvolumeclaims", func(action core.Action) (bool, runtime.Object, error) {
update := action.(core.UpdateAction)
indexer.Update(update.GetObject())
return true, update.GetObject(), nil
})
set := newStatefulSet(3) set := newStatefulSet(3)
set.GetObjectMeta().SetUID("set-123") set.GetObjectMeta().SetUID("set-123")
pod := newStatefulSetPod(set, 0) pod := newStatefulSetPod(set, 0)