Golang Client.Patch Examples

Golang Client.Patch - 5 examples found. These are the top rated real world Golang examples of k8s/io/kubernetes/pkg/client/unversioned.Client.Patch extracted from open source projects. You can rate examples to help us improve the quality of examples.
Example #1
0
// Update updates an existing node api object with new labels
func Update(client *client.Client, n *api.Node, labels map[string]string) (*api.Node, error) {
	patch := struct {
		Metadata struct {
			Labels map[string]string `json:"labels"`
		} `json:"metadata"`
	}{}
	patch.Metadata.Labels = map[string]string{}
	for k, v := range n.Labels {
		if !IsSlaveAttributeLabel(k) {
			patch.Metadata.Labels[k] = v
		}
	}
	for k, v := range labels {
		patch.Metadata.Labels[k] = v
	}
	patchJson, _ := json.Marshal(patch)
	log.V(4).Infof("Patching labels of node %q: %v", n.Name, string(patchJson))
	err := client.Patch(api.MergePatchType).RequestURI(n.SelfLink).Body(patchJson).Do().Error()
	if err != nil {
		return nil, fmt.Errorf("error updating labels of node %q: %v", n.Name, err)
	}

	newNode, err := api.Scheme.DeepCopy(n)
	if err != nil {
		return nil, err
	}
	newNode.(*api.Node).Labels = patch.Metadata.Labels

	return newNode.(*api.Node), nil
}
Example #2
0
func runPatchTest(c *client.Client) {
	name := "patchservice"
	resource := "services"
	svcBody := api.Service{
		TypeMeta: api.TypeMeta{
			APIVersion: c.APIVersion(),
		},
		ObjectMeta: api.ObjectMeta{
			Name:   name,
			Labels: map[string]string{},
		},
		Spec: api.ServiceSpec{
			// This is here because validation requires it.
			Selector: map[string]string{
				"foo": "bar",
			},
			Ports: []api.ServicePort{{
				Port:     12345,
				Protocol: "TCP",
			}},
			SessionAffinity: "None",
		},
	}
	services := c.Services(api.NamespaceDefault)
	svc, err := services.Create(&svcBody)
	if err != nil {
		glog.Fatalf("Failed creating patchservice: %v", err)
	}

	patchBodies := map[string]map[api.PatchType]struct {
		AddLabelBody        []byte
		RemoveLabelBody     []byte
		RemoveAllLabelsBody []byte
	}{
		"v1": {
			api.JSONPatchType: {
				[]byte(`[{"op":"add","path":"/metadata/labels","value":{"foo":"bar","baz":"qux"}}]`),
				[]byte(`[{"op":"remove","path":"/metadata/labels/foo"}]`),
				[]byte(`[{"op":"remove","path":"/metadata/labels"}]`),
			},
			api.MergePatchType: {
				[]byte(`{"metadata":{"labels":{"foo":"bar","baz":"qux"}}}`),
				[]byte(`{"metadata":{"labels":{"foo":null}}}`),
				[]byte(`{"metadata":{"labels":null}}`),
			},
			api.StrategicMergePatchType: {
				[]byte(`{"metadata":{"labels":{"foo":"bar","baz":"qux"}}}`),
				[]byte(`{"metadata":{"labels":{"foo":null}}}`),
				[]byte(`{"metadata":{"labels":{"$patch":"replace"}}}`),
			},
		},
	}

	pb := patchBodies[c.APIVersion()]

	execPatch := func(pt api.PatchType, body []byte) error {
		return c.Patch(pt).
			Resource(resource).
			Namespace(api.NamespaceDefault).
			Name(name).
			Body(body).
			Do().
			Error()
	}
	for k, v := range pb {
		// add label
		err := execPatch(k, v.AddLabelBody)
		if err != nil {
			glog.Fatalf("Failed updating patchservice with patch type %s: %v", k, err)
		}
		svc, err = services.Get(name)
		if err != nil {
			glog.Fatalf("Failed getting patchservice: %v", err)
		}
		if len(svc.Labels) != 2 || svc.Labels["foo"] != "bar" || svc.Labels["baz"] != "qux" {
			glog.Fatalf("Failed updating patchservice with patch type %s: labels are: %v", k, svc.Labels)
		}

		// remove one label
		err = execPatch(k, v.RemoveLabelBody)
		if err != nil {
			glog.Fatalf("Failed updating patchservice with patch type %s: %v", k, err)
		}
		svc, err = services.Get(name)
		if err != nil {
			glog.Fatalf("Failed getting patchservice: %v", err)
		}
		if len(svc.Labels) != 1 || svc.Labels["baz"] != "qux" {
			glog.Fatalf("Failed updating patchservice with patch type %s: labels are: %v", k, svc.Labels)
		}

		// remove all labels
		err = execPatch(k, v.RemoveAllLabelsBody)
		if err != nil {
			glog.Fatalf("Failed updating patchservice with patch type %s: %v", k, err)
		}
		svc, err = services.Get(name)
		if err != nil {
			glog.Fatalf("Failed getting patchservice: %v", err)
		}
		if svc.Labels != nil {
			glog.Fatalf("Failed remove all labels from patchservice with patch type %s: %v", k, svc.Labels)
		}
	}

	glog.Info("PATCHs work.")
}
			},
		})
		expectNoError(err)
		expectNoError(waitForPodRunningInNamespace(c, podName, ns))
		pod, err := c.Pods(ns).Get(podName)
		expectNoError(err)

		nodeName := pod.Spec.NodeName
		err = c.Pods(ns).Delete(podName, api.NewDeleteOptions(0))
		expectNoError(err)

		By("Trying to apply a random label on the found node.")
		k := fmt.Sprintf("kubernetes.io/e2e-%s", string(util.NewUUID()))
		v := "42"
		patch := fmt.Sprintf(`{"metadata":{"labels":{"%s":"%s"}}}`, k, v)
		err = c.Patch(api.MergePatchType).Resource("nodes").Name(nodeName).Body([]byte(patch)).Do().Error()
		expectNoError(err)

		node, err := c.Nodes().Get(nodeName)
		expectNoError(err)
		Expect(node.Labels[k]).To(Equal(v))

		By("Trying to relaunch the pod, now with labels.")
		labelPodName := "with-labels"
		_, err = c.Pods(ns).Create(&api.Pod{
			TypeMeta: unversioned.TypeMeta{
				Kind: "Pod",
			},
			ObjectMeta: api.ObjectMeta{
				Name: labelPodName,
			},
Example #4
0
func runPatchTest(c *client.Client) {
	name := "patchservice"
	resource := "services"
	svcBody := api.Service{
		TypeMeta: unversioned.TypeMeta{
			APIVersion: c.APIVersion().String(),
		},
		ObjectMeta: api.ObjectMeta{
			Name:   name,
			Labels: map[string]string{},
		},
		Spec: api.ServiceSpec{
			// This is here because validation requires it.
			Selector: map[string]string{
				"foo": "bar",
			},
			Ports: []api.ServicePort{{
				Port:     12345,
				Protocol: "TCP",
			}},
			SessionAffinity: "None",
		},
	}
	services := c.Services(api.NamespaceDefault)
	svc, err := services.Create(&svcBody)
	if err != nil {
		glog.Fatalf("Failed creating patchservice: %v", err)
	}

	patchBodies := map[unversioned.GroupVersion]map[api.PatchType]struct {
		AddLabelBody        []byte
		RemoveLabelBody     []byte
		RemoveAllLabelsBody []byte
	}{
		v1.SchemeGroupVersion: {
			api.JSONPatchType: {
				[]byte(`[{"op":"add","path":"/metadata/labels","value":{"foo":"bar","baz":"qux"}}]`),
				[]byte(`[{"op":"remove","path":"/metadata/labels/foo"}]`),
				[]byte(`[{"op":"remove","path":"/metadata/labels"}]`),
			},
			api.MergePatchType: {
				[]byte(`{"metadata":{"labels":{"foo":"bar","baz":"qux"}}}`),
				[]byte(`{"metadata":{"labels":{"foo":null}}}`),
				[]byte(`{"metadata":{"labels":null}}`),
			},
			api.StrategicMergePatchType: {
				[]byte(`{"metadata":{"labels":{"foo":"bar","baz":"qux"}}}`),
				[]byte(`{"metadata":{"labels":{"foo":null}}}`),
				[]byte(`{"metadata":{"labels":{"$patch":"replace"}}}`),
			},
		},
	}

	pb := patchBodies[c.APIVersion()]

	execPatch := func(pt api.PatchType, body []byte) error {
		return c.Patch(pt).
			Resource(resource).
			Namespace(api.NamespaceDefault).
			Name(name).
			Body(body).
			Do().
			Error()
	}
	for k, v := range pb {
		// add label
		err := execPatch(k, v.AddLabelBody)
		if err != nil {
			glog.Fatalf("Failed updating patchservice with patch type %s: %v", k, err)
		}
		svc, err = services.Get(name)
		if err != nil {
			glog.Fatalf("Failed getting patchservice: %v", err)
		}
		if len(svc.Labels) != 2 || svc.Labels["foo"] != "bar" || svc.Labels["baz"] != "qux" {
			glog.Fatalf("Failed updating patchservice with patch type %s: labels are: %v", k, svc.Labels)
		}

		// remove one label
		err = execPatch(k, v.RemoveLabelBody)
		if err != nil {
			glog.Fatalf("Failed updating patchservice with patch type %s: %v", k, err)
		}
		svc, err = services.Get(name)
		if err != nil {
			glog.Fatalf("Failed getting patchservice: %v", err)
		}
		if len(svc.Labels) != 1 || svc.Labels["baz"] != "qux" {
			glog.Fatalf("Failed updating patchservice with patch type %s: labels are: %v", k, svc.Labels)
		}

		// remove all labels
		err = execPatch(k, v.RemoveAllLabelsBody)
		if err != nil {
			glog.Fatalf("Failed updating patchservice with patch type %s: %v", k, err)
		}
		svc, err = services.Get(name)
		if err != nil {
			glog.Fatalf("Failed getting patchservice: %v", err)
		}
		if svc.Labels != nil {
			glog.Fatalf("Failed remove all labels from patchservice with patch type %s: %v", k, svc.Labels)
		}
	}

	// Test patch with a resource that allows create on update
	endpointTemplate := &api.Endpoints{
		ObjectMeta: api.ObjectMeta{Name: "patchendpoint"},
		Subsets: []api.EndpointSubset{
			{
				Addresses: []api.EndpointAddress{{IP: "1.2.3.4"}},
				Ports:     []api.EndpointPort{{Port: 80, Protocol: api.ProtocolTCP}},
			},
		},
	}

	patchEndpoint := func(json []byte) (runtime.Object, error) {
		return c.Patch(api.MergePatchType).Resource("endpoints").Namespace(api.NamespaceDefault).Name("patchendpoint").Body(json).Do().Get()
	}

	// Make sure patch doesn't get to CreateOnUpdate
	{
		endpointJSON, err := runtime.Encode(api.Codecs.LegacyCodec(v1.SchemeGroupVersion), endpointTemplate)
		if err != nil {
			glog.Fatalf("Failed creating endpoint JSON: %v", err)
		}
		if obj, err := patchEndpoint(endpointJSON); !apierrors.IsNotFound(err) {
			glog.Fatalf("Expected notfound creating from patch, got error=%v and object: %#v", err, obj)
		}
	}

	// Create the endpoint (endpoints set AllowCreateOnUpdate=true) to get a UID and resource version
	createdEndpoint, err := c.Endpoints(api.NamespaceDefault).Update(endpointTemplate)
	if err != nil {
		glog.Fatalf("Failed creating endpoint: %v", err)
	}

	// Make sure identity patch is accepted
	{
		endpointJSON, err := runtime.Encode(api.Codecs.LegacyCodec(v1.SchemeGroupVersion), createdEndpoint)
		if err != nil {
			glog.Fatalf("Failed creating endpoint JSON: %v", err)
		}
		if _, err := patchEndpoint(endpointJSON); err != nil {
			glog.Fatalf("Failed patching endpoint: %v", err)
		}
	}

	// Make sure patch complains about a mismatched resourceVersion
	{
		endpointTemplate.Name = ""
		endpointTemplate.UID = ""
		endpointTemplate.ResourceVersion = "1"
		endpointJSON, err := runtime.Encode(api.Codecs.LegacyCodec(v1.SchemeGroupVersion), endpointTemplate)
		if err != nil {
			glog.Fatalf("Failed creating endpoint JSON: %v", err)
		}
		if _, err := patchEndpoint(endpointJSON); !apierrors.IsConflict(err) {
			glog.Fatalf("Expected error, got %#v", err)
		}
	}

	// Make sure patch complains about mutating the UID
	{
		endpointTemplate.Name = ""
		endpointTemplate.UID = "abc"
		endpointTemplate.ResourceVersion = ""
		endpointJSON, err := runtime.Encode(api.Codecs.LegacyCodec(v1.SchemeGroupVersion), endpointTemplate)
		if err != nil {
			glog.Fatalf("Failed creating endpoint JSON: %v", err)
		}
		if _, err := patchEndpoint(endpointJSON); !apierrors.IsInvalid(err) {
			glog.Fatalf("Expected error, got %#v", err)
		}
	}

	// Make sure patch complains about a mismatched name
	{
		endpointTemplate.Name = "changedname"
		endpointTemplate.UID = ""
		endpointTemplate.ResourceVersion = ""
		endpointJSON, err := runtime.Encode(api.Codecs.LegacyCodec(v1.SchemeGroupVersion), endpointTemplate)
		if err != nil {
			glog.Fatalf("Failed creating endpoint JSON: %v", err)
		}
		if _, err := patchEndpoint(endpointJSON); !apierrors.IsBadRequest(err) {
			glog.Fatalf("Expected error, got %#v", err)
		}
	}

	// Make sure patch containing originally submitted JSON is accepted
	{
		endpointTemplate.Name = ""
		endpointTemplate.UID = ""
		endpointTemplate.ResourceVersion = ""
		endpointJSON, err := runtime.Encode(api.Codecs.LegacyCodec(v1.SchemeGroupVersion), endpointTemplate)
		if err != nil {
			glog.Fatalf("Failed creating endpoint JSON: %v", err)
		}
		if _, err := patchEndpoint(endpointJSON); err != nil {
			glog.Fatalf("Failed patching endpoint: %v", err)
		}
	}

	glog.Info("PATCHs work.")
}
				return verifyEvents(c.Events(eventNamespace), eventListOptions, num, tempReason, tempMessage)
			}, pollConsistent, pollInterval).Should(Succeed())
		})

		AfterEach(func() {
			By("Delete the node problem detector")
			c.Pods(ns).Delete(name, api.NewDeleteOptions(0))
			By("Wait for the node problem detector to disappear")
			Expect(framework.WaitForPodToDisappear(c, ns, name, labels.Everything(), pollInterval, pollTimeout)).To(Succeed())
			By("Delete the config map")
			c.ConfigMaps(ns).Delete(configName)
			By("Clean up the events")
			Expect(c.Events(eventNamespace).DeleteCollection(api.NewDeleteOptions(0), eventListOptions)).To(Succeed())
			By("Clean up the node condition")
			patch := []byte(fmt.Sprintf(`{"status":{"conditions":[{"$patch":"delete","type":"%s"}]}}`, condition))
			c.Patch(api.StrategicMergePatchType).Resource("nodes").Name(node.Name).SubResource("status").Body(patch).Do()
			By("Clean up the temporary directory")
			framework.IssueSSHCommand(fmt.Sprintf("rm -r %s", tmpDir), framework.TestContext.Provider, node)
		})
	})
})

// verifyEvents verifies there are num specific events generated
func verifyEvents(e client.EventInterface, options api.ListOptions, num int, reason, message string) error {
	events, err := e.List(options)
	if err != nil {
		return err
	}
	count := 0
	for _, event := range events.Items {
		if event.Reason != reason || event.Message != message {