func (o objects) Kind(kind, name string) (runtime.Object, error) {
empty, _ := o.scheme.New("", kind)
nilValue := reflect.Zero(reflect.TypeOf(empty)).Interface().(runtime.Object)
arr, ok := o.types[kind]
if !ok {
if strings.HasSuffix(kind, "List") {
itemKind := kind[:len(kind)-4]
arr, ok := o.types[itemKind]
if !ok {
return empty, nil
}
out, err := o.scheme.New("", kind)
if err != nil {
return nilValue, err
}
if err := runtime.SetList(out, arr); err != nil {
return nilValue, err
}
if out, err = o.scheme.Copy(out); err != nil {
return nilValue, err
}
return out, nil
}
return nilValue, errors.NewNotFound(kind, name)
}
index := o.last[kind]
if index >= len(arr) {
index = len(arr) - 1
}
if index < 0 {
return nilValue, errors.NewNotFound(kind, name)
}
out, err := o.scheme.Copy(arr[index])
if err != nil {
return nilValue, err
}
o.last[kind] = index + 1
if status, ok := out.(*unversioned.Status); ok {
if status.Details != nil {
status.Details.Kind = kind
}
if status.Status != unversioned.StatusSuccess {
return nilValue, &errors.StatusError{ErrStatus: *status}
}
}
return out, nil
}
func (r *ScaleREST) Update(ctx api.Context, obj runtime.Object) (runtime.Object, bool, error) {
if obj == nil {
return nil, false, errors.NewBadRequest(fmt.Sprintf("nil update passed to Scale"))
}
scale, ok := obj.(*extensions.Scale)
if !ok {
return nil, false, errors.NewBadRequest(fmt.Sprintf("wrong object passed to Scale update: %v", obj))
}
deployment, err := (*r.registry).GetDeployment(ctx, scale.Name)
if err != nil {
return nil, false, errors.NewNotFound("scale", scale.Name)
}
deployment.Spec.Replicas = scale.Spec.Replicas
deployment, err = (*r.registry).UpdateDeployment(ctx, deployment)
if err != nil {
return nil, false, errors.NewConflict("scale", scale.Name, err)
}
return &extensions.Scale{
ObjectMeta: api.ObjectMeta{
Name: deployment.Name,
Namespace: deployment.Namespace,
CreationTimestamp: deployment.CreationTimestamp,
},
Spec: extensions.ScaleSpec{
Replicas: deployment.Spec.Replicas,
},
Status: extensions.ScaleStatus{
Replicas: deployment.Status.Replicas,
Selector: deployment.Spec.Selector,
},
}, false, nil
}
// NewNotFound is a utility function to return a well-formatted admission control error response
func NewNotFound(a Attributes) error {
name, kind, err := extractKindName(a)
if err != nil {
return apierrors.NewInternalError(err)
}
return apierrors.NewNotFound(kind, name)
}
func (c *mockBinderClient) GetPersistentVolumeClaim(namespace, name string) (*api.PersistentVolumeClaim, error) {
if c.claim != nil {
return c.claim, nil
} else {
return nil, errors.NewNotFound("persistentVolume", name)
}
}
// existingController verifies if the controller already exists
func (r *RollingUpdater) existingController(controller *api.ReplicationController) (*api.ReplicationController, error) {
// without rc name but generate name, there's no existing rc
if len(controller.Name) == 0 && len(controller.GenerateName) > 0 {
return nil, errors.NewNotFound("ReplicationController", controller.Name)
}
// controller name is required to get rc back
return r.c.ReplicationControllers(controller.Namespace).Get(controller.Name)
}
// InterpretDeleteError converts a generic etcd error on a delete
// operation into the appropriate API error.
func InterpretDeleteError(err error, kind, name string) error {
switch {
case tools.IsEtcdNotFound(err):
return errors.NewNotFound(kind, name)
default:
return err
}
}
// InterpretGetError converts a generic etcd error on a retrieval
// operation into the appropriate API error.
func InterpretGetError(err error, kind, name string) error {
switch {
case etcdstorage.IsEtcdNotFound(err):
return errors.NewNotFound(kind, name)
default:
return err
}
}
func (r *NodeRegistry) GetNode(ctx api.Context, nodeID string) (*api.Node, error) {
r.Lock()
defer r.Unlock()
if r.Err != nil {
return nil, r.Err
}
for _, node := range r.Nodes.Items {
if node.Name == nodeID {
return &node, nil
}
}
return nil, errors.NewNotFound("node", nodeID)
}
func TestCheckGeneratedNameError(t *testing.T) {
expect := errors.NewNotFound("foo", "bar")
if err := CheckGeneratedNameError(Services, expect, &api.Pod{}); err != expect {
t.Errorf("NotFoundError should be ignored: %v", err)
}
expect = errors.NewAlreadyExists("foo", "bar")
if err := CheckGeneratedNameError(Services, expect, &api.Pod{}); err != expect {
t.Errorf("AlreadyExists should be returned when no GenerateName field: %v", err)
}
expect = errors.NewAlreadyExists("foo", "bar")
if err := CheckGeneratedNameError(Services, expect, &api.Pod{ObjectMeta: api.ObjectMeta{GenerateName: "foo"}}); err == nil || !errors.IsServerTimeout(err) {
t.Errorf("expected try again later error: %v", err)
}
}
func (e *EndpointRegistry) GetEndpoints(ctx api.Context, name string) (*api.Endpoints, error) {
// TODO: support namespaces in this mock
e.lock.Lock()
defer e.lock.Unlock()
if e.Err != nil {
return nil, e.Err
}
if e.Endpoints != nil {
for _, endpoint := range e.Endpoints.Items {
if endpoint.Name == name {
return &endpoint, nil
}
}
}
return nil, errors.NewNotFound("Endpoints", name)
}
func (r *ScaleREST) Get(ctx api.Context, name string) (runtime.Object, error) {
deployment, err := (*r.registry).GetDeployment(ctx, name)
if err != nil {
return nil, errors.NewNotFound("scale", name)
}
return &extensions.Scale{
ObjectMeta: api.ObjectMeta{
Name: name,
Namespace: deployment.Namespace,
CreationTimestamp: deployment.CreationTimestamp,
},
Spec: extensions.ScaleSpec{
Replicas: deployment.Spec.Replicas,
},
Status: extensions.ScaleStatus{
Replicas: deployment.Status.Replicas,
Selector: deployment.Spec.Selector,
},
}, nil
}
func TestDeleteAllNotFound(t *testing.T) {
_, svc, _ := testData()
f, tf, codec := NewAPIFactory()
// Add an item to the list which will result in a 404 on delete
svc.Items = append(svc.Items, api.Service{ObjectMeta: api.ObjectMeta{Name: "foo"}})
notFoundError := &errors.NewNotFound("Service", "foo").(*errors.StatusError).ErrStatus
tf.Printer = &testPrinter{}
tf.Client = &fake.RESTClient{
Codec: codec,
Client: fake.HTTPClientFunc(func(req *http.Request) (*http.Response, error) {
switch p, m := req.URL.Path, req.Method; {
case p == "/namespaces/test/services" && m == "GET":
return &http.Response{StatusCode: 200, Body: objBody(codec, svc)}, nil
case p == "/namespaces/test/services/foo" && m == "DELETE":
return &http.Response{StatusCode: 404, Body: objBody(codec, notFoundError)}, nil
case p == "/namespaces/test/services/baz" && m == "DELETE":
return &http.Response{StatusCode: 200, Body: objBody(codec, &svc.Items[0])}, nil
default:
t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
return nil, nil
}
}),
}
tf.Namespace = "test"
buf := bytes.NewBuffer([]byte{})
cmd := NewCmdDelete(f, buf)
cmd.Flags().Set("all", "true")
cmd.Flags().Set("cascade", "false")
// Make sure we can explicitly choose to fail on NotFound errors, even with --all
cmd.Flags().Set("ignore-not-found", "false")
cmd.Flags().Set("output", "name")
err := RunDelete(f, buf, cmd, []string{"services"}, &DeleteOptions{})
if err == nil || !errors.IsNotFound(err) {
t.Errorf("unexpected error: expected NotFound, got %v", err)
}
}
func TestErrorsToAPIStatus(t *testing.T) {
cases := map[error]unversioned.Status{
errors.NewNotFound("foo", "bar"): {
Status: unversioned.StatusFailure,
Code: http.StatusNotFound,
Reason: unversioned.StatusReasonNotFound,
Message: "foo \"bar\" not found",
Details: &unversioned.StatusDetails{
Kind: "foo",
Name: "bar",
},
},
errors.NewAlreadyExists("foo", "bar"): {
Status: unversioned.StatusFailure,
Code: http.StatusConflict,
Reason: "AlreadyExists",
Message: "foo \"bar\" already exists",
Details: &unversioned.StatusDetails{
Kind: "foo",
Name: "bar",
},
},
errors.NewConflict("foo", "bar", stderrs.New("failure")): {
Status: unversioned.StatusFailure,
Code: http.StatusConflict,
Reason: "Conflict",
Message: "foo \"bar\" cannot be updated: failure",
Details: &unversioned.StatusDetails{
Kind: "foo",
Name: "bar",
},
},
}
for k, v := range cases {
actual := errToAPIStatus(k)
if !reflect.DeepEqual(actual, &v) {
t.Errorf("%s: Expected %#v, Got %#v", k, v, actual)
}
}
}
func TestErrors(t *testing.T) {
o := NewObjects(api.Scheme, api.Scheme)
o.Add(&api.List{
Items: []runtime.Object{
// This first call to List will return this error
&(errors.NewNotFound("ServiceList", "").(*errors.StatusError).ErrStatus),
// The second call to List will return this error
&(errors.NewForbidden("ServiceList", "", nil).(*errors.StatusError).ErrStatus),
},
})
client := &Fake{}
client.AddReactor("*", "*", ObjectReaction(o, testapi.Default.RESTMapper()))
_, err := client.Services("test").List(labels.Everything(), fields.Everything())
if !errors.IsNotFound(err) {
t.Fatalf("unexpected error: %v", err)
}
t.Logf("error: %#v", err.(*errors.StatusError).Status())
_, err = client.Services("test").List(labels.Everything(), fields.Everything())
if !errors.IsForbidden(err) {
t.Fatalf("unexpected error: %v", err)
}
}
// Update performs an atomic update and set of the object. Returns the result of the update
// or an error. If the registry allows create-on-update, the create flow will be executed.
// A bool is returned along with the object and any errors, to indicate object creation.
func (e *Etcd) Update(ctx api.Context, obj runtime.Object) (runtime.Object, bool, error) {
trace := util.NewTrace("Update " + reflect.TypeOf(obj).String())
defer trace.LogIfLong(time.Second)
name, err := e.ObjectNameFunc(obj)
if err != nil {
return nil, false, err
}
key, err := e.KeyFunc(ctx, name)
if err != nil {
return nil, false, err
}
// If AllowUnconditionalUpdate() is true and the object specified by the user does not have a resource version,
// then we populate it with the latest version.
// Else, we check that the version specified by the user matches the version of latest etcd object.
resourceVersion, err := e.Storage.Versioner().ObjectResourceVersion(obj)
if err != nil {
return nil, false, err
}
doUnconditionalUpdate := resourceVersion == 0 && e.UpdateStrategy.AllowUnconditionalUpdate()
// TODO: expose TTL
creating := false
out := e.NewFunc()
err = e.Storage.GuaranteedUpdate(key, out, true, func(existing runtime.Object, res storage.ResponseMeta) (runtime.Object, *uint64, error) {
version, err := e.Storage.Versioner().ObjectResourceVersion(existing)
if err != nil {
return nil, nil, err
}
if version == 0 {
if !e.UpdateStrategy.AllowCreateOnUpdate() {
return nil, nil, kubeerr.NewNotFound(e.EndpointName, name)
}
creating = true
if err := rest.BeforeCreate(e.CreateStrategy, ctx, obj); err != nil {
return nil, nil, err
}
ttl, err := e.calculateTTL(obj, 0, false)
if err != nil {
return nil, nil, err
}
return obj, &ttl, nil
}
creating = false
if doUnconditionalUpdate {
// Update the object's resource version to match the latest etcd object's resource version.
err = e.Storage.Versioner().UpdateObject(obj, res.Expiration, res.ResourceVersion)
if err != nil {
return nil, nil, err
}
} else {
// Check if the object's resource version matches the latest resource version.
newVersion, err := e.Storage.Versioner().ObjectResourceVersion(obj)
if err != nil {
return nil, nil, err
}
if newVersion != version {
return nil, nil, kubeerr.NewConflict(e.EndpointName, name, fmt.Errorf("the object has been modified; please apply your changes to the latest version and try again"))
}
}
if err := rest.BeforeUpdate(e.UpdateStrategy, ctx, obj, existing); err != nil {
return nil, nil, err
}
ttl, err := e.calculateTTL(obj, res.TTL, true)
if err != nil {
return nil, nil, err
}
if int64(ttl) != res.TTL {
return obj, &ttl, nil
}
return obj, nil, nil
})
if err != nil {
if creating {
err = etcderr.InterpretCreateError(err, e.EndpointName, name)
err = rest.CheckGeneratedNameError(e.CreateStrategy, err, obj)
} else {
err = etcderr.InterpretUpdateError(err, e.EndpointName, name)
}
return nil, false, err
}
if creating {
if e.AfterCreate != nil {
if err := e.AfterCreate(out); err != nil {
return nil, false, err
}
}
} else {
if e.AfterUpdate != nil {
if err := e.AfterUpdate(out); err != nil {
return nil, false, err
}
}
}
if e.Decorator != nil {
if err := e.Decorator(obj); err != nil {
return nil, false, err
}
}
return out, creating, nil
}