Exemplo n.º 1
0
func (t *Tester) testCreateAlreadyExisting(obj runtime.Object, createFn CreateFunc) {
	ctx := t.TestContext()

	foo := copyOrDie(obj)
	t.setObjectMeta(foo, t.namer(1))
	if err := createFn(ctx, foo); err != nil {
		t.Errorf("unexpected error: %v", err)
	}
	defer t.delete(ctx, foo)

	_, err := t.storage.(rest.Creater).Create(ctx, foo)
	if !errors.IsAlreadyExists(err) {
		t.Errorf("expected already exists err, got %v", err)
	}
}
Exemplo n.º 2
0
// same as above func comments, except 'recyclerClient' is a narrower pod API
// interface to ease testing
func internalRecycleVolumeByWatchingPodUntilCompletion(pvName string, pod *api.Pod, recyclerClient recyclerClient) error {
	glog.V(5).Infof("creating recycler pod for volume %s\n", pod.Name)

	// Generate unique name for the recycler pod - we need to get "already
	// exists" error when a previous controller has already started recycling
	// the volume. Here we assume that pv.Name is already unique.
	pod.Name = "recycler-for-" + pvName
	pod.GenerateName = ""

	// Start the pod
	_, err := recyclerClient.CreatePod(pod)
	if err != nil {
		if errors.IsAlreadyExists(err) {
			glog.V(5).Infof("old recycler pod %q found for volume", pod.Name)
		} else {
			return fmt.Errorf("Unexpected error creating recycler pod:  %+v\n", err)
		}
	}
	defer recyclerClient.DeletePod(pod.Name, pod.Namespace)

	// Now only the old pod or the new pod run. Watch it until it finishes.
	stopChannel := make(chan struct{})
	defer close(stopChannel)
	nextPod := recyclerClient.WatchPod(pod.Name, pod.Namespace, stopChannel)

	for {
		watchedPod := nextPod()
		if watchedPod.Status.Phase == api.PodSucceeded {
			// volume.Recycle() returns nil on success, else error
			return nil
		}
		if watchedPod.Status.Phase == api.PodFailed {
			// volume.Recycle() returns nil on success, else error
			if watchedPod.Status.Message != "" {
				return fmt.Errorf(watchedPod.Status.Message)
			} else {
				return fmt.Errorf("pod failed, pod.Status.Message unknown.")
			}
		}
	}
}
Exemplo n.º 3
0
// recordEvent attempts to write event to a sink. It returns true if the event
// was successfully recorded or discarded, false if it should be retried.
// If updateExistingEvent is false, it creates a new event, otherwise it updates
// existing event.
func recordEvent(sink EventSink, event *api.Event, patch []byte, updateExistingEvent bool, eventCorrelator *EventCorrelator) bool {
	var newEvent *api.Event
	var err error
	if updateExistingEvent {
		newEvent, err = sink.Patch(event, patch)
	}
	// Update can fail because the event may have been removed and it no longer exists.
	if !updateExistingEvent || (updateExistingEvent && isKeyNotFoundError(err)) {
		// Making sure that ResourceVersion is empty on creation
		event.ResourceVersion = ""
		newEvent, err = sink.Create(event)
	}
	if err == nil {
		// we need to update our event correlator with the server returned state to handle name/resourceversion
		eventCorrelator.UpdateState(newEvent)
		return true
	}

	// If we can't contact the server, then hold everything while we keep trying.
	// Otherwise, something about the event is malformed and we should abandon it.
	switch err.(type) {
	case *restclient.RequestConstructionError:
		// We will construct the request the same next time, so don't keep trying.
		glog.Errorf("Unable to construct event '%#v': '%v' (will not retry!)", event, err)
		return true
	case *errors.StatusError:
		if errors.IsAlreadyExists(err) {
			glog.V(5).Infof("Server rejected event '%#v': '%v' (will not retry!)", event, err)
		} else {
			glog.Errorf("Server rejected event '%#v': '%v' (will not retry!)", event, err)
		}
		return true
	case *errors.UnexpectedObjectError:
		// We don't expect this; it implies the server's response didn't match a
		// known pattern. Go ahead and retry.
	default:
		// This case includes actual http transport errors. Go ahead and retry.
	}
	glog.Errorf("Unable to write event: '%v' (may retry after sleeping)", err)
	return false
}
Exemplo n.º 4
0
func (mc *basicMirrorClient) CreateMirrorPod(pod *api.Pod) error {
	if mc.apiserverClient == nil {
		return nil
	}
	// Make a copy of the pod.
	copyPod := *pod
	copyPod.Annotations = make(map[string]string)

	for k, v := range pod.Annotations {
		copyPod.Annotations[k] = v
	}
	hash := getPodHash(pod)
	copyPod.Annotations[kubetypes.ConfigMirrorAnnotationKey] = hash
	apiPod, err := mc.apiserverClient.Core().Pods(copyPod.Namespace).Create(&copyPod)
	if err != nil && errors.IsAlreadyExists(err) {
		// Check if the existing pod is the same as the pod we want to create.
		if h, ok := apiPod.Annotations[kubetypes.ConfigMirrorAnnotationKey]; ok && h == hash {
			return nil
		}
	}
	return err
}
Exemplo n.º 5
0
func TestStoreCreate(t *testing.T) {
	podA := &api.Pod{
		ObjectMeta: api.ObjectMeta{Name: "foo", Namespace: "test"},
		Spec:       api.PodSpec{NodeName: "machine"},
	}
	podB := &api.Pod{
		ObjectMeta: api.ObjectMeta{Name: "foo", Namespace: "test"},
		Spec:       api.PodSpec{NodeName: "machine2"},
	}

	testContext := api.WithNamespace(api.NewContext(), "test")
	server, registry := NewTestGenericStoreRegistry(t)
	defer server.Terminate(t)

	// create the object
	objA, err := registry.Create(testContext, podA)
	if err != nil {
		t.Errorf("Unexpected error: %v", err)
	}

	// get the object
	checkobj, err := registry.Get(testContext, podA.Name)
	if err != nil {
		t.Errorf("Unexpected error: %v", err)
	}

	// verify objects are equal
	if e, a := objA, checkobj; !reflect.DeepEqual(e, a) {
		t.Errorf("Expected %#v, got %#v", e, a)
	}

	// now try to create the second pod
	_, err = registry.Create(testContext, podB)
	if !errors.IsAlreadyExists(err) {
		t.Errorf("Unexpected error: %v", err)
	}
}
// createDefaultServiceAccount creates a default ServiceAccount in the specified namespace
func (e *ServiceAccountsController) createServiceAccount(sa api.ServiceAccount, namespace string) {
	sa.Namespace = namespace
	if _, err := e.client.Core().ServiceAccounts(namespace).Create(&sa); err != nil && !apierrs.IsAlreadyExists(err) {
		glog.Error(err)
	}
}