Example #1
0
// NewRawStorage creates the low level kv storage. This is a work-around for current
// two layer of same storage interface.
// TODO: Once cacher is enabled on all registries (event registry is special), we will remove this method.
func NewRawStorage(config *storagebackend.Config) (storage.Interface, factory.DestroyFunc) {
	s, d, err := factory.Create(*config)
	if err != nil {
		glog.Fatalf("Unable to create storage backend: config (%v), err (%v)", config, err)
	}
	return s, d
}
Example #2
0
func newTestGenericStoreRegistry(t *testing.T, hasCacheEnabled bool) (*etcdtesting.EtcdTestServer, *Store) {
	podPrefix := "/pods"
	server, sc := etcdtesting.NewUnsecuredEtcd3TestClientServer(t)
	strategy := &testRESTStrategy{api.Scheme, api.SimpleNameGenerator, true, false, true}
	sc.Codec = testapi.Default.StorageCodec()
	s, err := factory.Create(*sc)
	if err != nil {
		t.Fatalf("Error creating storage: %v", err)
	}
	if hasCacheEnabled {
		config := storage.CacherConfig{
			CacheCapacity:  10,
			Storage:        s,
			Versioner:      etcdstorage.APIObjectVersioner{},
			Type:           &api.Pod{},
			ResourcePrefix: podPrefix,
			KeyFunc:        func(obj runtime.Object) (string, error) { return storage.NoNamespaceKeyFunc(podPrefix, obj) },
			NewListFunc:    func() runtime.Object { return &api.PodList{} },
			Codec:          sc.Codec,
		}
		s = storage.NewCacherFromConfig(config)
	}

	return server, &Store{
		NewFunc:           func() runtime.Object { return &api.Pod{} },
		NewListFunc:       func() runtime.Object { return &api.PodList{} },
		QualifiedResource: api.Resource("pods"),
		CreateStrategy:    strategy,
		UpdateStrategy:    strategy,
		DeleteStrategy:    strategy,
		KeyRootFunc: func(ctx api.Context) string {
			return podPrefix
		},
		KeyFunc: func(ctx api.Context, id string) (string, error) {
			if _, ok := api.NamespaceFrom(ctx); !ok {
				return "", fmt.Errorf("namespace is required")
			}
			return path.Join(podPrefix, id), nil
		},
		ObjectNameFunc: func(obj runtime.Object) (string, error) { return obj.(*api.Pod).Name, nil },
		PredicateFunc: func(label labels.Selector, field fields.Selector) *generic.SelectionPredicate {
			return &generic.SelectionPredicate{
				Label: label,
				Field: field,
				GetAttrs: func(obj runtime.Object) (labels.Set, fields.Set, error) {
					pod, ok := obj.(*api.Pod)
					if !ok {
						return nil, nil, fmt.Errorf("not a pod")
					}
					return labels.Set(pod.ObjectMeta.Labels), generic.ObjectMetaFieldsSet(pod.ObjectMeta, true), nil
				},
			}
		},
		Storage: s,
	}
}
Example #3
0
// InstallAPI starts a Kubernetes master and registers the supported REST APIs
// into the provided mux, then returns an array of strings indicating what
// endpoints were started (these are format strings that will expect to be sent
// a single string value).
func (c *MasterConfig) InstallAPI(container *restful.Container) ([]string, error) {
	c.Master.RestfulContainer = container

	if c.Master.EnableCoreControllers {
		glog.V(2).Info("Using the lease endpoint reconciler")
		config, err := c.Master.StorageFactory.NewConfig(kapi.Resource("apiServerIPInfo"))
		if err != nil {
			return nil, err
		}
		leaseStorage, _, err := storagefactory.Create(*config)
		if err != nil {
			return nil, err
		}
		masterLeases := newMasterLeases(leaseStorage)

		endpointConfig, err := c.Master.StorageFactory.NewConfig(kapi.Resource("endpoints"))
		if err != nil {
			return nil, err
		}
		endpointsStorage := endpointsetcd.NewREST(generic.RESTOptions{
			StorageConfig:           endpointConfig,
			Decorator:               generic.UndecoratedStorage,
			DeleteCollectionWorkers: 0,
			ResourcePrefix:          c.Master.StorageFactory.ResourcePrefix(kapi.Resource("endpoints")),
		})

		endpointRegistry := endpoint.NewRegistry(endpointsStorage)

		c.Master.EndpointReconcilerConfig = master.EndpointReconcilerConfig{
			Reconciler: election.NewLeaseEndpointReconciler(endpointRegistry, masterLeases),
			Interval:   master.DefaultEndpointReconcilerInterval,
		}
	}

	_, err := master.New(c.Master)
	if err != nil {
		return nil, err
	}

	messages := []string{}
	// v1 has to be printed separately since it's served from different endpoint than groups
	if configapi.HasKubernetesAPIVersion(c.Options, v1.SchemeGroupVersion) {
		messages = append(messages, fmt.Sprintf("Started Kubernetes API at %%s%s", KubeAPIPrefix))
	}

	// TODO: this is a bit much - I exist in some code somewhere
	versions := []unversioned.GroupVersion{
		extv1beta1.SchemeGroupVersion,
		batchv1.SchemeGroupVersion,
		batchv2alpha1.SchemeGroupVersion,
		autoscalingv1.SchemeGroupVersion,
		certificatesv1alpha1.SchemeGroupVersion,
		appsv1alpha1.SchemeGroupVersion,
		policyv1alpha1.SchemeGroupVersion,
		federationv1beta1.SchemeGroupVersion,
	}
	for _, ver := range versions {
		if configapi.HasKubernetesAPIVersion(c.Options, ver) {
			messages = append(messages, fmt.Sprintf("Started Kubernetes API %s at %%s%s", ver.String(), KubeAPIGroupPrefix))
		}
	}

	return messages, nil
}
Example #4
0
// newStorage is the default implementation for creating a storage backend.
func newStorage(config storagebackend.Config, codec runtime.Codec) (etcdStorage storage.Interface, err error) {
	return storagebackendfactory.Create(config, codec)
}