Esempio n. 1
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func (gc *GarbageCollector) patchObject(item objectReference, patch []byte) (*unstructured.Unstructured, error) {
	fqKind := schema.FromAPIVersionAndKind(item.APIVersion, item.Kind)
	client, err := gc.clientPool.ClientForGroupVersionKind(fqKind)
	gc.registeredRateLimiter.registerIfNotPresent(fqKind.GroupVersion(), client, "garbage_collector_operation")
	resource, err := gc.apiResource(item.APIVersion, item.Kind, len(item.Namespace) != 0)
	if err != nil {
		return nil, err
	}
	return client.Resource(resource, item.Namespace).Patch(item.Name, types.StrategicMergePatchType, patch)
}
Esempio n. 2
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func (gc *GarbageCollector) deleteObject(item objectReference) error {
	fqKind := schema.FromAPIVersionAndKind(item.APIVersion, item.Kind)
	client, err := gc.clientPool.ClientForGroupVersionKind(fqKind)
	gc.registeredRateLimiter.registerIfNotPresent(fqKind.GroupVersion(), client, "garbage_collector_operation")
	resource, err := gc.apiResource(item.APIVersion, item.Kind, len(item.Namespace) != 0)
	if err != nil {
		return err
	}
	uid := item.UID
	preconditions := v1.Preconditions{UID: &uid}
	deleteOptions := v1.DeleteOptions{Preconditions: &preconditions}
	return client.Resource(resource, item.Namespace).Delete(item.Name, &deleteOptions)
}
Esempio n. 3
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// apiResource consults the REST mapper to translate an <apiVersion, kind,
// namespace> tuple to a metav1.APIResource struct.
func (gc *GarbageCollector) apiResource(apiVersion, kind string, namespaced bool) (*metav1.APIResource, error) {
	fqKind := schema.FromAPIVersionAndKind(apiVersion, kind)
	mapping, err := gc.restMapper.RESTMapping(fqKind.GroupKind(), apiVersion)
	if err != nil {
		return nil, fmt.Errorf("unable to get REST mapping for kind: %s, version: %s", kind, apiVersion)
	}
	glog.V(6).Infof("map kind %s, version %s to resource %s", kind, apiVersion, mapping.Resource)
	resource := metav1.APIResource{
		Name:       mapping.Resource,
		Namespaced: namespaced,
		Kind:       kind,
	}
	return &resource, nil
}
Esempio n. 4
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func validateOwnerReference(ownerReference metav1.OwnerReference, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}
	gvk := schema.FromAPIVersionAndKind(ownerReference.APIVersion, ownerReference.Kind)
	// gvk.Group is empty for the legacy group.
	if len(gvk.Version) == 0 {
		allErrs = append(allErrs, field.Invalid(fldPath.Child("apiVersion"), ownerReference.APIVersion, "version must not be empty"))
	}
	if len(gvk.Kind) == 0 {
		allErrs = append(allErrs, field.Invalid(fldPath.Child("kind"), ownerReference.Kind, "kind must not be empty"))
	}
	if len(ownerReference.Name) == 0 {
		allErrs = append(allErrs, field.Invalid(fldPath.Child("name"), ownerReference.Name, "name must not be empty"))
	}
	if len(ownerReference.UID) == 0 {
		allErrs = append(allErrs, field.Invalid(fldPath.Child("uid"), ownerReference.UID, "uid must not be empty"))
	}
	if _, ok := BannedOwners[gvk]; ok {
		allErrs = append(allErrs, field.Invalid(fldPath, ownerReference, fmt.Sprintf("%s is disallowed from being an owner", gvk)))
	}
	return allErrs
}
Esempio n. 5
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func (obj *ObjectReference) GroupVersionKind() schema.GroupVersionKind {
	return schema.FromAPIVersionAndKind(obj.APIVersion, obj.Kind)
}
func (obj *MyAPIObject) GroupVersionKind() schema.GroupVersionKind {
	return schema.FromAPIVersionAndKind(obj.TypeMeta.APIVersion, obj.TypeMeta.Kind)
}
Esempio n. 7
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// GroupVersionKind satisfies the ObjectKind interface for all objects that embed TypeMeta
func (obj *TypeMeta) GroupVersionKind() schema.GroupVersionKind {
	return schema.FromAPIVersionAndKind(obj.APIVersion, obj.Kind)
}
Esempio n. 8
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func (gc *GarbageCollector) processItem(item *node) error {
	// Get the latest item from the API server
	latest, err := gc.getObject(item.identity)
	if err != nil {
		if errors.IsNotFound(err) {
			// the Propagator can add "virtual" node for an owner that doesn't
			// exist yet, so we need to enqueue a virtual Delete event to remove
			// the virtual node from Propagator.uidToNode.
			glog.V(6).Infof("item %v not found, generating a virtual delete event", item.identity)
			event := &event{
				eventType: deleteEvent,
				obj:       objectReferenceToMetadataOnlyObject(item.identity),
			}
			glog.V(6).Infof("generating virtual delete event for %s\n\n", event.obj)
			gc.propagator.eventQueue.Add(&workqueue.TimedWorkQueueItem{StartTime: gc.clock.Now(), Object: event})
			return nil
		}
		return err
	}
	if latest.GetUID() != item.identity.UID {
		glog.V(6).Infof("UID doesn't match, item %v not found, generating a virtual delete event", item.identity)
		event := &event{
			eventType: deleteEvent,
			obj:       objectReferenceToMetadataOnlyObject(item.identity),
		}
		glog.V(6).Infof("generating virtual delete event for %s\n\n", event.obj)
		gc.propagator.eventQueue.Add(&workqueue.TimedWorkQueueItem{StartTime: gc.clock.Now(), Object: event})
		return nil
	}
	ownerReferences := latest.GetOwnerReferences()
	if len(ownerReferences) == 0 {
		glog.V(6).Infof("object %s's doesn't have an owner, continue on next item", item.identity)
		return nil
	}
	// TODO: we need to remove dangling references if the object is not to be
	// deleted.
	for _, reference := range ownerReferences {
		if gc.absentOwnerCache.Has(reference.UID) {
			glog.V(6).Infof("according to the absentOwnerCache, object %s's owner %s/%s, %s does not exist", item.identity.UID, reference.APIVersion, reference.Kind, reference.Name)
			continue
		}
		// TODO: we need to verify the reference resource is supported by the
		// system. If it's not a valid resource, the garbage collector should i)
		// ignore the reference when decide if the object should be deleted, and
		// ii) should update the object to remove such references. This is to
		// prevent objects having references to an old resource from being
		// deleted during a cluster upgrade.
		fqKind := schema.FromAPIVersionAndKind(reference.APIVersion, reference.Kind)
		client, err := gc.clientPool.ClientForGroupVersionKind(fqKind)
		if err != nil {
			return err
		}
		resource, err := gc.apiResource(reference.APIVersion, reference.Kind, len(item.identity.Namespace) != 0)
		if err != nil {
			return err
		}
		owner, err := client.Resource(resource, item.identity.Namespace).Get(reference.Name)
		if err == nil {
			if owner.GetUID() != reference.UID {
				glog.V(6).Infof("object %s's owner %s/%s, %s is not found, UID mismatch", item.identity.UID, reference.APIVersion, reference.Kind, reference.Name)
				gc.absentOwnerCache.Add(reference.UID)
				continue
			}
			glog.V(6).Infof("object %s has at least an existing owner, will not garbage collect", item.identity.UID)
			return nil
		} else if errors.IsNotFound(err) {
			gc.absentOwnerCache.Add(reference.UID)
			glog.V(6).Infof("object %s's owner %s/%s, %s is not found", item.identity.UID, reference.APIVersion, reference.Kind, reference.Name)
		} else {
			return err
		}
	}
	glog.V(2).Infof("none of object %s's owners exist any more, will garbage collect it", item.identity)
	return gc.deleteObject(item.identity)
}
Esempio n. 9
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func (obj *MyWeirdCustomEmbeddedVersionKindField) GroupVersionKind() schema.GroupVersionKind {
	return schema.FromAPIVersionAndKind(obj.APIVersion, obj.ObjectKind)
}
Esempio n. 10
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func (obj *Config) GroupVersionKind() schema.GroupVersionKind {
	return schema.FromAPIVersionAndKind(obj.APIVersion, obj.Kind)
}
Esempio n. 11
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func (obj *ExternalType2) GroupVersionKind() schema.GroupVersionKind {
	return schema.FromAPIVersionAndKind(obj.APIVersion, obj.Kind)
}