Golang Accessor示例

说明

golang accessor示例是从最受好评的开源项目中提取的实现代码,你可以参考下面示例的使用方式。

编程语言: Golang

命名空间/包名称: k8s/io/kubernetes/pkg/api/meta

示例#1
文件: gc_admission.go 项目: humblec/kubernetes

func isChangingOwnerReference(newObj, oldObj runtime.Object) bool {
	newMeta, err := meta.Accessor(newObj)
	if err != nil {
		// if we don't have objectmeta, we don't have the object reference
		return false
	}

	if oldObj == nil {
		return len(newMeta.GetOwnerReferences()) > 0
	}
	oldMeta, err := meta.Accessor(oldObj)
	if err != nil {
		// if we don't have objectmeta, we don't have the object reference
		return false
	}

	// compare the old and new.  If they aren't the same, then we're trying to change an ownerRef
	oldOwners := oldMeta.GetOwnerReferences()
	newOwners := newMeta.GetOwnerReferences()
	if len(oldOwners) != len(newOwners) {
		return true
	}
	for i := range oldOwners {
		if !api.Semantic.DeepEqual(oldOwners[i], newOwners[i]) {
			return true
		}
	}

	return false
}

示例#2
文件: apply_test.go 项目: XbinZh/kubernetes

func annotateRuntimeObject(t *testing.T, originalObj, currentObj runtime.Object, kind string) (string, []byte) {
	originalAccessor, err := meta.Accessor(originalObj)
	if err != nil {
		t.Fatal(err)
	}

	originalLabels := originalAccessor.GetLabels()
	originalLabels["DELETE_ME"] = "DELETE_ME"
	originalAccessor.SetLabels(originalLabels)
	original, err := json.Marshal(originalObj)
	if err != nil {
		t.Fatal(err)
	}

	currentAccessor, err := meta.Accessor(currentObj)
	if err != nil {
		t.Fatal(err)
	}

	currentAnnotations := currentAccessor.GetAnnotations()
	if currentAnnotations == nil {
		currentAnnotations = make(map[string]string)
	}
	currentAnnotations[annotations.LastAppliedConfigAnnotation] = string(original)
	currentAccessor.SetAnnotations(currentAnnotations)
	current, err := json.Marshal(currentObj)
	if err != nil {
		t.Fatal(err)
	}

	return currentAccessor.GetName(), current
}

示例#3
文件: apply_test.go 项目: Q-Lee/kubernetes

func setFinalizersRuntimeObject(t *testing.T, originalObj, currentObj runtime.Object) (string, []byte) {
	originalAccessor, err := meta.Accessor(originalObj)
	if err != nil {
		t.Fatal(err)
	}

	originalFinalizers := []string{"a/a"}
	originalAccessor.SetFinalizers(originalFinalizers)
	original, err := runtime.Encode(testapi.Default.Codec(), originalObj)
	if err != nil {
		t.Fatal(err)
	}

	currentAccessor, err := meta.Accessor(currentObj)
	if err != nil {
		t.Fatal(err)
	}

	currentFinalizers := []string{"b/b"}
	currentAccessor.SetFinalizers(currentFinalizers)

	currentAnnotations := currentAccessor.GetAnnotations()
	if currentAnnotations == nil {
		currentAnnotations = make(map[string]string)
	}
	currentAnnotations[annotations.LastAppliedConfigAnnotation] = string(original)
	currentAccessor.SetAnnotations(currentAnnotations)
	current, err := runtime.Encode(testapi.Default.Codec(), currentObj)
	if err != nil {
		t.Fatal(err)
	}

	return currentAccessor.GetName(), current
}

示例#4
文件: controller_policy_test.go 项目: alex-mohr/kubernetes

func TestControllerRoleLabel(t *testing.T) {
	roles := ControllerRoles()
	for i := range roles {
		role := roles[i]
		accessor, err := meta.Accessor(&role)
		if err != nil {
			t.Fatalf("unexpected error: %v", err)
		}
		if got, want := accessor.GetLabels(), map[string]string{"kubernetes.io/bootstrapping": "rbac-defaults"}; !reflect.DeepEqual(got, want) {
			t.Errorf("ClusterRole: %s GetLabels() = %s, want %s", accessor.GetName(), got, want)
		}
	}

	rolebindings := ControllerRoleBindings()
	for i := range rolebindings {
		rolebinding := rolebindings[i]
		accessor, err := meta.Accessor(&rolebinding)
		if err != nil {
			t.Fatalf("unexpected error: %v", err)
		}
		if got, want := accessor.GetLabels(), map[string]string{"kubernetes.io/bootstrapping": "rbac-defaults"}; !reflect.DeepEqual(got, want) {
			t.Errorf("ClusterRoleBinding: %s GetLabels() = %s, want %s", accessor.GetName(), got, want)
		}
	}
}

示例#5
文件: store_test.go 项目: astropuffin/kubernetes

func TestNoOpUpdates(t *testing.T) {
	server, registry := NewTestGenericStoreRegistry(t)
	defer server.Terminate(t)

	newPod := func() *api.Pod {
		return &api.Pod{
			ObjectMeta: api.ObjectMeta{
				Namespace: api.NamespaceDefault,
				Name:      "foo",
				Labels:    map[string]string{"prepare_create": "true"},
			},
			Spec: api.PodSpec{NodeName: "machine"},
		}
	}

	var err error
	var createResult runtime.Object
	if createResult, err = registry.Create(api.NewDefaultContext(), newPod()); err != nil {
		t.Fatalf("Unexpected error: %v", err)
	}

	createdPod, err := registry.Get(api.NewDefaultContext(), "foo")
	if err != nil {
		t.Fatalf("Unexpected error: %v", err)
	}

	var updateResult runtime.Object
	p := newPod()
	if updateResult, _, err = registry.Update(api.NewDefaultContext(), p.Name, rest.DefaultUpdatedObjectInfo(p, api.Scheme)); err != nil {
		t.Fatalf("Unexpected error: %v", err)
	}

	// Check whether we do not return empty result on no-op update.
	if !reflect.DeepEqual(createResult, updateResult) {
		t.Errorf("no-op update should return a correct value, got: %#v", updateResult)
	}

	updatedPod, err := registry.Get(api.NewDefaultContext(), "foo")
	if err != nil {
		t.Fatalf("Unexpected error: %v", err)
	}

	createdMeta, err := meta.Accessor(createdPod)
	if err != nil {
		t.Fatalf("Unexpected error: %v", err)
	}
	updatedMeta, err := meta.Accessor(updatedPod)
	if err != nil {
		t.Fatalf("Unexpected error: %v", err)
	}

	if createdMeta.GetResourceVersion() != updatedMeta.GetResourceVersion() {
		t.Errorf("no-op update should be ignored and not written to etcd")
	}
}

示例#6
文件: fixture.go 项目: 40a/bootkube

// ObjectReaction returns a ReactionFunc that takes a generic action string of the form
// <verb>-<resource> or <verb>-<subresource>-<resource> and attempts to return a runtime
// Object or error that matches the requested action. For instance, list-replicationControllers
// should attempt to return a list of replication controllers. This method delegates to the
// ObjectRetriever interface to satisfy retrieval of lists or retrieval of single items.
// TODO: add support for sub resources
func ObjectReaction(o ObjectRetriever, mapper meta.RESTMapper) ReactionFunc {
	return func(action Action) (bool, runtime.Object, error) {
		resource := action.GetResource()
		kind, err := mapper.KindFor(resource)
		// This is a temporary fix. Because there is no internal resource, so
		// the caller has no way to express that it expects to get an internal
		// kind back. A more proper fix will be directly specify the Kind when
		// build the action.
		kind.Version = resource.Version
		if err != nil {
			return false, nil, fmt.Errorf("unrecognized action %s: %v", action.GetResource(), err)
		}

		// TODO: have mapper return a Kind for a subresource?
		switch castAction := action.(type) {
		case ListAction:
			kind.Kind += "List"
			resource, err := o.Kind(kind, "")
			return true, resource, err

		case GetAction:
			resource, err := o.Kind(kind, castAction.GetName())
			return true, resource, err

		case DeleteAction:
			resource, err := o.Kind(kind, castAction.GetName())
			return true, resource, err

		case CreateAction:
			accessor, err := meta.Accessor(castAction.GetObject())
			if err != nil {
				return true, nil, err
			}
			resource, err := o.Kind(kind, accessor.GetName())
			return true, resource, err

		case UpdateAction:
			accessor, err := meta.Accessor(castAction.GetObject())
			if err != nil {
				return true, nil, err
			}
			resource, err := o.Kind(kind, accessor.GetName())
			return true, resource, err

		default:
			return false, nil, fmt.Errorf("no reaction implemented for %s", action)
		}
	}
}

示例#7
文件: controller_base.go 项目: roackb2/kubernetes

// storeObjectUpdate updates given cache with a new object version from Informer
// callback (i.e. with events from etcd) or with an object modified by the
// controller itself. Returns "true", if the cache was updated, false if the
// object is an old version and should be ignored.
func storeObjectUpdate(store cache.Store, obj interface{}, className string) (bool, error) {
	objAccessor, err := meta.Accessor(obj)
	if err != nil {
		return false, fmt.Errorf("Error reading cache of %s: %v", className, err)
	}
	objName := objAccessor.GetNamespace() + "/" + objAccessor.GetName()

	oldObj, found, err := store.Get(obj)
	if err != nil {
		return false, fmt.Errorf("Error finding %s %q in controller cache: %v", className, objName, err)
	}

	if !found {
		// This is a new object
		glog.V(4).Infof("storeObjectUpdate: adding %s %q, version %s", className, objName, objAccessor.GetResourceVersion())
		if err = store.Add(obj); err != nil {
			return false, fmt.Errorf("Error adding %s %q to controller cache: %v", className, objName, err)
		}
		return true, nil
	}

	oldObjAccessor, err := meta.Accessor(oldObj)
	if err != nil {
		return false, err
	}

	objResourceVersion, err := strconv.ParseInt(objAccessor.GetResourceVersion(), 10, 64)
	if err != nil {
		return false, fmt.Errorf("Error parsing ResourceVersion %q of %s %q: %s", objAccessor.GetResourceVersion(), className, objName, err)
	}
	oldObjResourceVersion, err := strconv.ParseInt(oldObjAccessor.GetResourceVersion(), 10, 64)
	if err != nil {
		return false, fmt.Errorf("Error parsing old ResourceVersion %q of %s %q: %s", oldObjAccessor.GetResourceVersion(), className, objName, err)
	}

	// Throw away only older version, let the same version pass - we do want to
	// get periodic sync events.
	if oldObjResourceVersion > objResourceVersion {
		glog.V(4).Infof("storeObjectUpdate: ignoring %s %q version %s", className, objName, objAccessor.GetResourceVersion())
		return false, nil
	}

	glog.V(4).Infof("storeObjectUpdate updating %s %q with version %s", className, objName, objAccessor.GetResourceVersion())
	if err = store.Update(obj); err != nil {
		return false, fmt.Errorf("Error updating %s %q in controller cache: %v", className, objName, err)
	}
	return true, nil
}

示例#8
文件: history.go 项目: CodeJuan/kubernetes

// getChangeCause returns the change-cause annotation of the input object
func getChangeCause(obj runtime.Object) string {
	accessor, err := meta.Accessor(obj)
	if err != nil {
		return ""
	}
	return accessor.GetAnnotations()[ChangeCauseAnnotation]
}

示例#9
文件: controller_utils.go 项目: jonboulle/kubernetes

func GetPodFromTemplate(template *v1.PodTemplateSpec, parentObject runtime.Object, controllerRef *metav1.OwnerReference) (*v1.Pod, error) {
	desiredLabels := getPodsLabelSet(template)
	desiredFinalizers := getPodsFinalizers(template)
	desiredAnnotations, err := getPodsAnnotationSet(template, parentObject)
	if err != nil {
		return nil, err
	}
	accessor, err := meta.Accessor(parentObject)
	if err != nil {
		return nil, fmt.Errorf("parentObject does not have ObjectMeta, %v", err)
	}
	prefix := getPodsPrefix(accessor.GetName())

	pod := &v1.Pod{
		ObjectMeta: v1.ObjectMeta{
			Labels:       desiredLabels,
			Annotations:  desiredAnnotations,
			GenerateName: prefix,
			Finalizers:   desiredFinalizers,
		},
	}
	if controllerRef != nil {
		pod.OwnerReferences = append(pod.OwnerReferences, *controllerRef)
	}
	clone, err := api.Scheme.DeepCopy(&template.Spec)
	if err != nil {
		return nil, err
	}
	pod.Spec = *clone.(*v1.PodSpec)
	return pod, nil
}

示例#10
文件: fixture.go 项目: jonboulle/kubernetes

func (t *tracker) Delete(gvk schema.GroupVersionKind, ns, name string) error {
	if err := checkNamespace(gvk, ns); err != nil {
		return err
	}

	t.lock.Lock()
	defer t.lock.Unlock()

	found := false

	for i, existingObj := range t.objects[gvk] {
		objMeta, err := meta.Accessor(existingObj)
		if err != nil {
			return err
		}
		if objMeta.GetNamespace() == ns && objMeta.GetName() == name {
			t.objects[gvk] = append(t.objects[gvk][:i], t.objects[gvk][i+1:]...)
			found = true
			break
		}
	}

	if found {
		return nil
	}

	return errors.NewNotFound(schema.GroupResource{Group: gvk.Group, Resource: gvk.Kind}, name)
}

示例#11
文件: index.go 项目: naxhh/heapster

// MetaNamespaceIndexFunc is a default index function that indexes based on an object's namespace
func MetaNamespaceIndexFunc(obj interface{}) (string, error) {
	meta, err := meta.Accessor(obj)
	if err != nil {
		return "", fmt.Errorf("object has no meta: %v", err)
	}
	return meta.Namespace(), nil
}

示例#12
文件: serviceaccounts_controller.go 项目: yghannam/kubernetes

// nameIndexFunc is an index function that indexes based on an object's name
func nameIndexFunc(obj interface{}) ([]string, error) {
	meta, err := meta.Accessor(obj)
	if err != nil {
		return []string{""}, fmt.Errorf("object has no meta: %v", err)
	}
	return []string{meta.Name()}, nil
}

示例#13
文件: registry.go 项目: rrati/origin

// getEvent returns next item in the event queue which satisfies item version greater than given start version
// checkCondition is an optimization that ignores version check when it is not needed
func getEvent(eventQueue *oscache.EventQueue, startVersion uint64, checkCondition *bool) (watch.EventType, interface{}, error) {
	if *checkCondition {
		// Ignore all events with version <= given start version
		for {
			eventType, obj, err := eventQueue.Pop()
			if err != nil {
				return watch.Error, nil, err
			}
			accessor, err := meta.Accessor(obj)
			if err != nil {
				return watch.Error, nil, err
			}
			currentVersion, err := strconv.ParseUint(accessor.GetResourceVersion(), 10, 64)
			if err != nil {
				return watch.Error, nil, err
			}
			if currentVersion <= startVersion {
				log.V(5).Infof("Ignoring %s with version %d, start version: %d", accessor.GetName(), currentVersion, startVersion)
				continue
			}
			*checkCondition = false
			return eventType, obj, nil
		}
	} else {
		return eventQueue.Pop()
	}
}

示例#14
文件: fixture.go 项目: LalatenduMohanty/origin

func setNamespace(typer runtime.ObjectTyper, obj runtime.Object, namespace string) error {
	itemMeta, err := meta.Accessor(obj)
	if err != nil {
		return err
	}
	gvks, _, err := typer.ObjectKinds(obj)
	if err != nil {
		return err
	}
	group, err := registered.Group(gvks[0].Group)
	if err != nil {
		return err
	}
	mapping, err := group.RESTMapper.RESTMapping(gvks[0].GroupKind(), gvks[0].Version)
	if err != nil {
		return err
	}
	switch mapping.Scope.Name() {
	case meta.RESTScopeNameNamespace:
		if len(itemMeta.GetNamespace()) == 0 {
			itemMeta.SetNamespace(namespace)
		}
	}

	return nil
}

示例#15
文件: util.go 项目: shrids/kubernetes

func NamespaceKeyFunc(prefix string, obj runtime.Object) (string, error) {
	meta, err := meta.Accessor(obj)
	if err != nil {
		return "", err
	}
	return prefix + "/" + meta.Namespace() + "/" + meta.Name(), nil
}

示例#16
文件: reflector.go 项目: jmccarty3/kubernetes

func (r *Reflector) listAndWatch(stopCh <-chan struct{}) {
	var resourceVersion string
	resyncCh, cleanup := r.resyncChan()
	defer cleanup()

	list, err := r.listerWatcher.List()
	if err != nil {
		util.HandleError(fmt.Errorf("%s: Failed to list %v: %v", r.name, r.expectedType, err))
		return
	}
	meta, err := meta.Accessor(list)
	if err != nil {
		util.HandleError(fmt.Errorf("%s: Unable to understand list result %#v", r.name, list))
		return
	}
	resourceVersion = meta.ResourceVersion()
	items, err := runtime.ExtractList(list)
	if err != nil {
		util.HandleError(fmt.Errorf("%s: Unable to understand list result %#v (%v)", r.name, list, err))
		return
	}
	if err := r.syncWith(items); err != nil {
		util.HandleError(fmt.Errorf("%s: Unable to sync list result: %v", r.name, err))
		return
	}
	r.setLastSyncResourceVersion(resourceVersion)

	for {
		w, err := r.listerWatcher.Watch(resourceVersion)
		if err != nil {
			switch err {
			case io.EOF:
				// watch closed normally
			case io.ErrUnexpectedEOF:
				glog.V(1).Infof("%s: Watch for %v closed with unexpected EOF: %v", r.name, r.expectedType, err)
			default:
				util.HandleError(fmt.Errorf("%s: Failed to watch %v: %v", r.name, r.expectedType, err))
			}
			// If this is "connection refused" error, it means that most likely apiserver is not responsive.
			// It doesn't make sense to re-list all objects because most likely we will be able to restart
			// watch where we ended.
			// If that's the case wait and resend watch request.
			if urlError, ok := err.(*url.Error); ok {
				if opError, ok := urlError.Err.(*net.OpError); ok {
					if errno, ok := opError.Err.(syscall.Errno); ok && errno == syscall.ECONNREFUSED {
						time.Sleep(time.Second)
						continue
					}
				}
			}
			return
		}
		if err := r.watchHandler(w, &resourceVersion, resyncCh, stopCh); err != nil {
			if err != errorResyncRequested && err != errorStopRequested {
				glog.Warningf("%s: watch of %v ended with: %v", r.name, r.expectedType, err)
			}
			return
		}
	}
}

示例#17
文件: cacher_test.go 项目: invenfantasy/kubernetes

func TestFiltering(t *testing.T) {
	server, etcdStorage := newEtcdTestStorage(t, testapi.Default.Codec(), etcdtest.PathPrefix())
	defer server.Terminate(t)
	cacher := newTestCacher(etcdStorage)
	defer cacher.Stop()

	// Ensure that the cacher is initialized, before creating any pods,
	// so that we are sure that all events will be present in cacher.
	syncWatcher, err := cacher.Watch(context.TODO(), "pods/ns/foo", "0", storage.Everything)
	if err != nil {
		t.Fatalf("Unexpected error: %v", err)
	}
	syncWatcher.Stop()

	podFoo := makeTestPod("foo")
	podFoo.Labels = map[string]string{"filter": "foo"}
	podFooFiltered := makeTestPod("foo")
	podFooPrime := makeTestPod("foo")
	podFooPrime.Labels = map[string]string{"filter": "foo"}
	podFooPrime.Spec.NodeName = "fakeNode"

	podFooNS2 := makeTestPod("foo")
	podFooNS2.Namespace += "2"
	podFooNS2.Labels = map[string]string{"filter": "foo"}

	// Create in another namespace first to make sure events from other namespaces don't get delivered
	updatePod(t, etcdStorage, podFooNS2, nil)

	fooCreated := updatePod(t, etcdStorage, podFoo, nil)
	fooFiltered := updatePod(t, etcdStorage, podFooFiltered, fooCreated)
	fooUnfiltered := updatePod(t, etcdStorage, podFoo, fooFiltered)
	_ = updatePod(t, etcdStorage, podFooPrime, fooUnfiltered)

	deleted := api.Pod{}
	if err := etcdStorage.Delete(context.TODO(), etcdtest.AddPrefix("pods/ns/foo"), &deleted, nil); err != nil {
		t.Errorf("Unexpected error: %v", err)
	}

	// Set up Watch for object "podFoo" with label filter set.
	selector := labels.SelectorFromSet(labels.Set{"filter": "foo"})
	filterFunc := func(obj runtime.Object) bool {
		metadata, err := meta.Accessor(obj)
		if err != nil {
			t.Errorf("Unexpected error: %v", err)
			return false
		}
		return selector.Matches(labels.Set(metadata.GetLabels()))
	}
	filter := storage.NewSimpleFilter(filterFunc, storage.NoTriggerFunc)
	watcher, err := cacher.Watch(context.TODO(), "pods/ns/foo", fooCreated.ResourceVersion, filter)
	if err != nil {
		t.Fatalf("Unexpected error: %v", err)
	}
	defer watcher.Stop()

	verifyWatchEvent(t, watcher, watch.Deleted, podFooFiltered)
	verifyWatchEvent(t, watcher, watch.Added, podFoo)
	verifyWatchEvent(t, watcher, watch.Modified, podFooPrime)
	verifyWatchEvent(t, watcher, watch.Deleted, podFooPrime)
}

示例#18
文件: meta_test.go 项目: 40a/bootkube

// BenchmarkAccessorSetReflection provides a baseline for accessor performance
func BenchmarkAccessorSetReflection(b *testing.B) {
	obj := &InternalObject{
		InternalTypeMeta{
			Namespace:       "bar",
			Name:            "foo",
			GenerateName:    "prefix",
			UID:             "uid",
			APIVersion:      "a",
			Kind:            "b",
			ResourceVersion: "1",
			SelfLink:        "some/place/only/we/know",
			Labels:          map[string]string{"foo": "bar"},
			Annotations:     map[string]string{"x": "y"},
		},
	}

	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		acc, err := meta.Accessor(obj)
		if err != nil {
			b.Fatal(err)
		}
		acc.SetNamespace("something")
	}
	b.StopTimer()
}

示例#19
文件: controller_utils.go 项目: Xmagicer/origin

func (r RealPodControl) createPods(nodeName, namespace string, template *api.PodTemplateSpec, object runtime.Object) error {
	pod, err := GetPodFromTemplate(template, object)
	if err != nil {
		return err
	}
	if len(nodeName) != 0 {
		pod.Spec.NodeName = nodeName
	}
	if labels.Set(pod.Labels).AsSelector().Empty() {
		return fmt.Errorf("unable to create pods, no labels")
	}
	if newPod, err := r.KubeClient.Core().Pods(namespace).Create(pod); err != nil {
		r.Recorder.Eventf(object, api.EventTypeWarning, "FailedCreate", "Error creating: %v", err)
		return fmt.Errorf("unable to create pods: %v", err)
	} else {
		accessor, err := meta.Accessor(object)
		if err != nil {
			glog.Errorf("parentObject does not have ObjectMeta, %v", err)
			return nil
		}
		glog.V(4).Infof("Controller %v created pod %v", accessor.GetName(), newPod.Name)
		r.Recorder.Eventf(object, api.EventTypeNormal, "SuccessfulCreate", "Created pod: %v", newPod.Name)
	}
	return nil
}

示例#20
文件: controller_utils.go 项目: CodeJuan/kubernetes

func GetPodFromTemplate(template *api.PodTemplateSpec, parentObject runtime.Object, controllerRef *api.OwnerReference) (*api.Pod, error) {
	desiredLabels := getPodsLabelSet(template)
	desiredAnnotations, err := getPodsAnnotationSet(template, parentObject)
	if err != nil {
		return nil, err
	}
	accessor, err := meta.Accessor(parentObject)
	if err != nil {
		return nil, fmt.Errorf("parentObject does not have ObjectMeta, %v", err)
	}
	prefix := getPodsPrefix(accessor.GetName())

	pod := &api.Pod{
		ObjectMeta: api.ObjectMeta{
			Labels:       desiredLabels,
			Annotations:  desiredAnnotations,
			GenerateName: prefix,
		},
	}
	if controllerRef != nil {
		pod.OwnerReferences = append(pod.OwnerReferences, *controllerRef)
	}
	if err := api.Scheme.Convert(&template.Spec, &pod.Spec); err != nil {
		return nil, fmt.Errorf("unable to convert pod template: %v", err)
	}
	return pod, nil
}

示例#21
文件: taint.go 项目: Q-Lee/kubernetes

// updateTaints updates taints of obj
func (o TaintOptions) updateTaints(obj runtime.Object) error {
	accessor, err := meta.Accessor(obj)
	if err != nil {
		return err
	}
	if !o.overwrite {
		if err := validateNoTaintOverwrites(accessor, o.taintsToAdd); err != nil {
			return err
		}
	}

	annotations := accessor.GetAnnotations()
	if annotations == nil {
		annotations = make(map[string]string)
	}

	newTaints, err := reorganizeTaints(accessor, o.overwrite, o.taintsToAdd, o.taintsToRemove)
	if err != nil {
		return err
	}
	taintsData, err := json.Marshal(newTaints)
	if err != nil {
		return err
	}
	annotations[api.TaintsAnnotationKey] = string(taintsData)
	accessor.SetAnnotations(annotations)

	return nil
}

示例#22
文件: annotate.go 项目: alex-mohr/kubernetes

// updateAnnotations updates annotations of obj
func (o AnnotateOptions) updateAnnotations(obj runtime.Object) error {
	accessor, err := meta.Accessor(obj)
	if err != nil {
		return err
	}
	if !o.overwrite {
		if err := validateNoAnnotationOverwrites(accessor, o.newAnnotations); err != nil {
			return err
		}
	}

	annotations := accessor.GetAnnotations()
	if annotations == nil {
		annotations = make(map[string]string)
	}

	for key, value := range o.newAnnotations {
		annotations[key] = value
	}
	for _, annotation := range o.removeAnnotations {
		delete(annotations, annotation)
	}
	accessor.SetAnnotations(annotations)

	if len(o.resourceVersion) != 0 {
		accessor.SetResourceVersion(o.resourceVersion)
	}
	return nil
}

示例#23
文件: label.go 项目: odacremolbap/kubernetes

func labelFunc(obj runtime.Object, overwrite bool, resourceVersion string, labels map[string]string, remove []string) error {
	accessor, err := meta.Accessor(obj)
	if err != nil {
		return err
	}
	if !overwrite {
		if err := validateNoOverwrites(accessor, labels); err != nil {
			return err
		}
	}

	objLabels := accessor.GetLabels()
	if objLabels == nil {
		objLabels = make(map[string]string)
	}

	for key, value := range labels {
		objLabels[key] = value
	}
	for _, label := range remove {
		delete(objLabels, label)
	}
	accessor.SetLabels(objLabels)

	if len(resourceVersion) != 0 {
		accessor.SetResourceVersion(resourceVersion)
	}
	return nil
}

示例#24
文件: cluster.go 项目: Xmagicer/origin

// watchForResourceVersion watches for an Add/Modify event matching the given resourceVersion.
// If an error, timeout, or unexpected event is received, an error is returned.
// If an add/modify event is observed with the correct resource version, nil is returned.
func watchForResourceVersion(versioner storage.Versioner, watcher rest.Watcher, resourceVersion string, timeout time.Duration) error {
	// Watch from the previous resource version, so the first watch event is the desired version
	previousVersion, err := previousResourceVersion(versioner, resourceVersion)
	if err != nil {
		return err
	}

	w, err := watcher.Watch(context.TODO(), &kapi.ListOptions{ResourceVersion: previousVersion})
	if err != nil {
		return fmt.Errorf("error verifying resourceVersion %s: %v", resourceVersion, err)
	}
	defer w.Stop()

	select {
	case event := <-w.ResultChan():
		if event.Type != watch.Added && event.Type != watch.Modified {
			return fmt.Errorf("unexpected watch event verifying resourceVersion %s: %q", resourceVersion, event.Type)
		}
		if event.Object == nil {
			return fmt.Errorf("unexpected watch event verifying resourceVersion %s: object was nil", resourceVersion)
		}
		accessor, err := meta.Accessor(event.Object)
		if err != nil {
			return err
		}
		actualResourceVersion := accessor.GetResourceVersion()
		if actualResourceVersion != resourceVersion {
			return fmt.Errorf("unexpected watch event verifying resourceVersion %s: resource version was %s)", resourceVersion, actualResourceVersion)
		}
		return nil

	case <-time.After(timeout):
		return fmt.Errorf("timeout verifying resourceVersion %s", resourceVersion)
	}
}

示例#25
文件: replicasetcontroller_test.go 项目: Aleishus/kubernetes

func TestParseFederationReplicaSetReference(t *testing.T) {
	successPrefs := []string{
		`{"rebalance": true,
		  "clusters": {
		    "k8s-1": {"minReplicas": 10, "maxReplicas": 20, "weight": 2},
		    "*": {"weight": 1}
		}}`,
	}
	failedPrefes := []string{
		`{`, // bad json
	}

	rs := newReplicaSetWithReplicas("rs-1", 100)
	accessor, _ := meta.Accessor(rs)
	anno := accessor.GetAnnotations()
	if anno == nil {
		anno = make(map[string]string)
		accessor.SetAnnotations(anno)
	}
	for _, prefString := range successPrefs {
		anno[FedReplicaSetPreferencesAnnotation] = prefString
		pref, err := parseFederationReplicaSetReference(rs)
		assert.NotNil(t, pref)
		assert.Nil(t, err)
	}
	for _, prefString := range failedPrefes {
		anno[FedReplicaSetPreferencesAnnotation] = prefString
		pref, err := parseFederationReplicaSetReference(rs)
		assert.Nil(t, pref)
		assert.NotNil(t, err)
	}
}

示例#26
文件: idle.go 项目: dcbw/origin

// getControllerRef returns a subresource reference to the owning controller of the given object.
// It will use both the CreatedByAnnotation from Kubernetes, as well as the DeploymentConfigAnnotation
// from Origin to look this up.  If neither are found, it will return nil.
func getControllerRef(obj runtime.Object, decoder runtime.Decoder) (*kapi.ObjectReference, error) {
	objMeta, err := meta.Accessor(obj)
	if err != nil {
		return nil, err
	}

	annotations := objMeta.GetAnnotations()

	creatorRefRaw, creatorListed := annotations[kapi.CreatedByAnnotation]
	if !creatorListed {
		// if we don't have a creator listed, try the openshift-specific Deployment annotation
		dcName, dcNameListed := annotations[deployapi.DeploymentConfigAnnotation]
		if !dcNameListed {
			return nil, nil
		}

		return &kapi.ObjectReference{
			Name:      dcName,
			Namespace: objMeta.GetNamespace(),
			Kind:      "DeploymentConfig",
		}, nil
	}

	serializedRef := &kapi.SerializedReference{}
	if err := runtime.DecodeInto(decoder, []byte(creatorRefRaw), serializedRef); err != nil {
		return nil, fmt.Errorf("could not decoded pod's creator reference: %v", err)
	}

	return &serializedRef.Reference, nil
}

示例#27
文件: evaluator.go 项目: XbinZh/kubernetes

// UsageStats calculates latest observed usage stats for all objects
func (g *GenericEvaluator) UsageStats(options quota.UsageStatsOptions) (quota.UsageStats, error) {
	// default each tracked resource to zero
	result := quota.UsageStats{Used: api.ResourceList{}}
	for _, resourceName := range g.MatchedResourceNames {
		result.Used[resourceName] = resource.MustParse("0")
	}
	list, err := g.ListFuncByNamespace(options.Namespace, api.ListOptions{})
	if err != nil {
		return result, fmt.Errorf("%s: Failed to list %v: %v", g.Name, g.GroupKind(), err)
	}
	_, err = meta.Accessor(list)
	if err != nil {
		return result, fmt.Errorf("%s: Unable to understand list result %#v", g.Name, list)
	}
	items, err := meta.ExtractList(list)
	if err != nil {
		return result, fmt.Errorf("%s: Unable to understand list result %#v (%v)", g.Name, list, err)
	}
	for _, item := range items {
		// need to verify that the item matches the set of scopes
		matchesScopes := true
		for _, scope := range options.Scopes {
			if !g.MatchesScope(scope, item) {
				matchesScopes = false
			}
		}
		// only count usage if there was a match
		if matchesScopes {
			result.Used = quota.Add(result.Used, g.Usage(item))
		}
	}
	return result, nil
}

示例#28
文件: garbagecollector.go 项目: FlyWings/kubernetes

func shouldOrphanDependents(e event, accessor meta.Object) bool {
	// The delta_fifo may combine the creation and update of the object into one
	// event, so we need to check AddEvent as well.
	if e.oldObj == nil {
		if accessor.GetDeletionTimestamp() == nil {
			return false
		}
	} else {
		oldAccessor, err := meta.Accessor(e.oldObj)
		if err != nil {
			utilruntime.HandleError(fmt.Errorf("cannot access oldObj: %v", err))
			return false
		}
		// ignore the event if it's not updating DeletionTimestamp from non-nil to nil.
		if accessor.GetDeletionTimestamp() == nil || oldAccessor.GetDeletionTimestamp() != nil {
			return false
		}
	}
	finalizers := accessor.GetFinalizers()
	for _, finalizer := range finalizers {
		if finalizer == api.FinalizerOrphan {
			return true
		}
	}
	return false
}

示例#29
文件: reflector.go 项目: vulpecula/kubernetes

// watchHandler watches w and keeps *resourceVersion up to date.
func (r *Reflector) watchHandler(w watch.Interface, resourceVersion *string, resyncCh <-chan time.Time, stopCh <-chan struct{}) error {
	start := time.Now()
	eventCount := 0

	// Stopping the watcher should be idempotent and if we return from this function there's no way
	// we're coming back in with the same watch interface.
	defer w.Stop()

loop:
	for {
		select {
		case <-stopCh:
			return errorStopRequested
		case <-resyncCh:
			return errorResyncRequested
		case event, ok := <-w.ResultChan():
			if !ok {
				break loop
			}
			if event.Type == watch.Error {
				return apierrs.FromObject(event.Object)
			}
			if e, a := r.expectedType, reflect.TypeOf(event.Object); e != nil && e != a {
				utilruntime.HandleError(fmt.Errorf("%s: expected type %v, but watch event object had type %v", r.name, e, a))
				continue
			}
			meta, err := meta.Accessor(event.Object)
			if err != nil {
				utilruntime.HandleError(fmt.Errorf("%s: unable to understand watch event %#v", r.name, event))
				continue
			}
			newResourceVersion := meta.GetResourceVersion()
			switch event.Type {
			case watch.Added:
				r.store.Add(event.Object)
			case watch.Modified:
				r.store.Update(event.Object)
			case watch.Deleted:
				// TODO: Will any consumers need access to the "last known
				// state", which is passed in event.Object? If so, may need
				// to change this.
				r.store.Delete(event.Object)
			default:
				utilruntime.HandleError(fmt.Errorf("%s: unable to understand watch event %#v", r.name, event))
			}
			*resourceVersion = newResourceVersion
			r.setLastSyncResourceVersion(newResourceVersion)
			eventCount++
		}
	}

	watchDuration := time.Now().Sub(start)
	if watchDuration < 1*time.Second && eventCount == 0 {
		glog.V(4).Infof("%s: Unexpected watch close - watch lasted less than a second and no items received", r.name)
		return errors.New("very short watch")
	}
	glog.V(4).Infof("%s: Watch close - %v total %v items received", r.name, r.expectedType, eventCount)
	return nil
}

示例#30
文件: fixture.go 项目: RomainVabre/origin

// ObjectReaction returns a ReactionFunc that takes a generic action string of the form
// <verb>-<resource> or <verb>-<subresource>-<resource> and attempts to return a runtime
// Object or error that matches the requested action. For instance, list-replicationControllers
// should attempt to return a list of replication controllers. This method delegates to the
// ObjectRetriever interface to satisfy retrieval of lists or retrieval of single items.
// TODO: add support for sub resources
func ObjectReaction(o ObjectRetriever, mapper meta.RESTMapper) ReactionFunc {

	return func(action Action) (bool, runtime.Object, error) {
		kind, err := mapper.KindFor(unversioned.GroupVersionResource{Resource: action.GetResource()})
		if err != nil {
			return false, nil, fmt.Errorf("unrecognized action %s: %v", action.GetResource(), err)
		}

		// TODO: have mapper return a Kind for a subresource?
		switch castAction := action.(type) {
		case ListAction:
			kind.Kind += "List"
			resource, err := o.Kind(kind, "")
			return true, resource, err

		case GetAction:
			resource, err := o.Kind(kind, castAction.GetName())
			return true, resource, err

		case DeleteAction:
			resource, err := o.Kind(kind, castAction.GetName())
			return true, resource, err

		case CreateAction:
			accessor, err := meta.Accessor(castAction.GetObject())
			if err != nil {
				return true, nil, err
			}
			resource, err := o.Kind(kind, accessor.GetName())
			return true, resource, err

		case UpdateAction:
			accessor, err := meta.Accessor(castAction.GetObject())
			if err != nil {
				return true, nil, err
			}
			resource, err := o.Kind(kind, accessor.GetName())
			return true, resource, err

		default:
			return false, nil, fmt.Errorf("no reaction implemented for %s", action)
		}

		return true, nil, nil
	}
}

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