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Remove finalizer when orphaned

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Change-Id: Id88a28755660812a274dffab2693cb8a0ef4235c
This commit is contained in:
Aldo Culquicondor 2022-03-18 14:31:01 -04:00
parent 211e33d93f
commit 8776931abb
1 changed files with 32 additions and 9 deletions
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41
pkg/controller/job/job_controller.go
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@ -236,7 +236,7 @@ func (jm *Controller) resolveControllerRef(namespace string, controllerRef *meta
return job
}
// When a pod is created, enqueue the controller that manages it and update it's expectations.
// When a pod is created, enqueue the controller that manages it and update its expectations.
func (jm *Controller) addPod(obj interface{}) {
pod := obj.(*v1.Pod)
if pod.DeletionTimestamp != nil {
@ -261,7 +261,12 @@ func (jm *Controller) addPod(obj interface{}) {
return
}
// Otherwise, it's an orphan. Get a list of all matching controllers and sync
// Otherwise, it's an orphan.
// Clean the finalizer.
if hasJobTrackingFinalizer(pod) {
jm.enqueueOrphanPod(pod)
}
// Get a list of all matching controllers and sync
// them to see if anyone wants to adopt it.
// DO NOT observe creation because no controller should be waiting for an
// orphan.
@ -331,7 +336,12 @@ func (jm *Controller) updatePod(old, cur interface{}) {
return
}
// Otherwise, it's an orphan. If anything changed, sync matching controllers
// Otherwise, it's an orphan.
// Clean the finalizer.
if hasJobTrackingFinalizer(curPod) {
jm.enqueueOrphanPod(curPod)
}
// If anything changed, sync matching controllers
// to see if anyone wants to adopt it now.
labelChanged := !reflect.DeepEqual(curPod.Labels, oldPod.Labels)
if labelChanged || controllerRefChanged {
@ -364,17 +374,18 @@ func (jm *Controller) deletePod(obj interface{}, final bool) {
}
controllerRef := metav1.GetControllerOf(pod)
hasFinalizer := hasJobTrackingFinalizer(pod)
if controllerRef == nil {
// No controller should care about orphans being deleted.
// But this pod might have belonged to a Job and the GC removed the reference.
if hasJobTrackingFinalizer(pod) {
if hasFinalizer {
jm.enqueueOrphanPod(pod)
}
return
}
job := jm.resolveControllerRef(pod.Namespace, controllerRef)
if job == nil {
if hasJobTrackingFinalizer(pod) {
if hasFinalizer {
jm.enqueueOrphanPod(pod)
}
return
@ -387,7 +398,7 @@ func (jm *Controller) deletePod(obj interface{}, final bool) {
// Consider the finalizer removed if this is the final delete. Otherwise,
// it's an update for the deletion timestamp, then check finalizer.
if final || !hasJobTrackingFinalizer(pod) {
if final || !hasFinalizer {
jm.finalizerExpectations.finalizerRemovalObserved(jobKey, string(pod.UID))
}
@ -441,10 +452,14 @@ func (jm *Controller) deleteJob(obj interface{}) {
}
}
// Listing pods shouldn't really fail, as we are just querying the informer cache.
pods, _ := jm.podStore.Pods(jobObj.Namespace).List(labels.Everything())
selector, err := metav1.LabelSelectorAsSelector(jobObj.Spec.Selector)
if err != nil {
utilruntime.HandleError(fmt.Errorf("parsing deleted job selector: %v", err))
return
}
pods, _ := jm.podStore.Pods(jobObj.Namespace).List(selector)
for _, pod := range pods {
controllerRef := metav1.GetControllerOf(pod)
if (controllerRef == nil || controllerRef.UID == jobObj.UID) && hasJobTrackingFinalizer(pod) {
if metav1.IsControlledBy(pod, jobObj) && hasJobTrackingFinalizer(pod) {
jm.enqueueOrphanPod(pod)
}
}
@ -567,6 +582,14 @@ func (jm Controller) syncOrphanPod(ctx context.Context, key string) error {
}
return err
}
// Make sure the pod is still orphaned.
if controllerRef := metav1.GetControllerOf(sharedPod); controllerRef != nil {
job := jm.resolveControllerRef(sharedPod.Namespace, controllerRef)
if job != nil {
// The pod was adopted. Do not remove finalizer.
return nil
}
}
if patch := removeTrackingFinalizerPatch(sharedPod); patch != nil {
if err := jm.podControl.PatchPod(ctx, ns, name, patch); err != nil && !apierrors.IsNotFound(err) {
return err