Golang Attributes.GetName方法代码示例

func (a *gcPermissionsEnforcement) Admit(attributes admission.Attributes) (err error) {
	// if we aren't changing owner references, then the edit is always allowed
	if !isChangingOwnerReference(attributes.GetObject(), attributes.GetOldObject()) {
		return nil
	}

	deleteAttributes := authorizer.AttributesRecord{
		User:            attributes.GetUserInfo(),
		Verb:            "delete",
		Namespace:       attributes.GetNamespace(),
		APIGroup:        attributes.GetResource().Group,
		APIVersion:      attributes.GetResource().Version,
		Resource:        attributes.GetResource().Resource,
		Subresource:     attributes.GetSubresource(),
		Name:            attributes.GetName(),
		ResourceRequest: true,
		Path:            "",
	}
	allowed, reason, err := a.authorizer.Authorize(deleteAttributes)
	if allowed {
		return nil
	}

	return admission.NewForbidden(attributes, fmt.Errorf("cannot set an ownerRef on a resource you can't delete: %v, %v", reason, err))
}

func (l *lifecycle) Admit(a admission.Attributes) error {
	// prevent deletion of immortal namespaces
	if a.GetOperation() == admission.Delete && a.GetKind().GroupKind() == api.Kind("Namespace") && l.immortalNamespaces.Has(a.GetName()) {
		return errors.NewForbidden(a.GetResource().GroupResource(), a.GetName(), fmt.Errorf("this namespace may not be deleted"))
	}

	// if we're here, then we've already passed authentication, so we're allowed to do what we're trying to do
	// if we're here, then the API server has found a route, which means that if we have a non-empty namespace
	// its a namespaced resource.
	if len(a.GetNamespace()) == 0 || a.GetKind().GroupKind() == api.Kind("Namespace") {
		// if a namespace is deleted, we want to prevent all further creates into it
		// while it is undergoing termination.  to reduce incidences where the cache
		// is slow to update, we add the namespace into a force live lookup list to ensure
		// we are not looking at stale state.
		if a.GetOperation() == admission.Delete {
			l.forceLiveLookupCache.Add(a.GetName(), true, forceLiveLookupTTL)
		}
		return nil
	}

	// we need to wait for our caches to warm
	if !l.WaitForReady() {
		return admission.NewForbidden(a, fmt.Errorf("not yet ready to handle request"))
	}

	var (
		namespaceObj interface{}
		exists       bool
		err          error
	)

	key := makeNamespaceKey(a.GetNamespace())
	namespaceObj, exists, err = l.namespaceInformer.GetStore().Get(key)
	if err != nil {
		return errors.NewInternalError(err)
	}

	if !exists && a.GetOperation() == admission.Create {
		// give the cache time to observe the namespace before rejecting a create.
		// this helps when creating a namespace and immediately creating objects within it.
		time.Sleep(missingNamespaceWait)
		namespaceObj, exists, err = l.namespaceInformer.GetStore().Get(key)
		if err != nil {
			return errors.NewInternalError(err)
		}
		if exists {
			glog.V(4).Infof("found %s in cache after waiting", a.GetNamespace())
		}
	}

	// forceLiveLookup if true will skip looking at local cache state and instead always make a live call to server.
	forceLiveLookup := false
	if _, ok := l.forceLiveLookupCache.Get(a.GetNamespace()); ok {
		// we think the namespace was marked for deletion, but our current local cache says otherwise, we will force a live lookup.
		forceLiveLookup = exists && namespaceObj.(*api.Namespace).Status.Phase == api.NamespaceActive
	}

	// refuse to operate on non-existent namespaces
	if !exists || forceLiveLookup {
		// as a last resort, make a call directly to storage
		namespaceObj, err = l.client.Core().Namespaces().Get(a.GetNamespace(), metav1.GetOptions{})
		if err != nil {
			if errors.IsNotFound(err) {
				return err
			}
			return errors.NewInternalError(err)
		}
		glog.V(4).Infof("found %s via storage lookup", a.GetNamespace())
	}

	// ensure that we're not trying to create objects in terminating namespaces
	if a.GetOperation() == admission.Create {
		namespace := namespaceObj.(*api.Namespace)
		if namespace.Status.Phase != api.NamespaceTerminating {
			return nil
		}

		// TODO: This should probably not be a 403
		return admission.NewForbidden(a, fmt.Errorf("unable to create new content in namespace %s because it is being terminated.", a.GetNamespace()))
	}

	return nil
}