io.kubernetes.client.informer.SharedIndexInformer Java Examples

The following examples show how to use io.kubernetes.client.informer.SharedIndexInformer. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example #1

Source File: DefaultKubeApiFacade.java From titus-control-plane with Apache License 2.0

6 votes

private SharedIndexInformer<V1Pod> createPodInformer(SharedInformerFactory sharedInformerFactory) {
    return sharedInformerFactory.sharedIndexInformerFor(
            (CallGeneratorParams params) -> coreV1Api.listNamespacedPodCall(
                    KUBERNETES_NAMESPACE,
                    null,
                    null,
                    null,
                    null,
                    null,
                    null,
                    params.resourceVersion,
                    params.timeoutSeconds,
                    params.watch,
                    null
            ),
            V1Pod.class,
            V1PodList.class,
            configuration.getKubeApiServerIntegratorRefreshIntervalMs()
    );
}

Example #2

Source File: KubeInformerMetrics.java From titus-control-plane with Apache License 2.0

6 votes

public KubeInformerMetrics(String type,
                           SharedIndexInformer<ApiType> informer,
                           TitusRuntime titusRuntime) {
    this.titusRuntime = titusRuntime;
    this.sizeGaugeId = titusRuntime.getRegistry().createId(METRICS_INFORMER, "type", type);
    this.syncedGaugeId = titusRuntime.getRegistry().createId(METRICS_INFORMER_SYNCED, "type", type);
    this.stalenessGaugeId = titusRuntime.getRegistry().createId(METRICS_INFORMER_STALENESS, "type", type);

    PolledMeter.using(titusRuntime.getRegistry())
            .withId(sizeGaugeId)
            .monitorValue(informer, i -> i.getIndexer().list().size());
    PolledMeter.using(titusRuntime.getRegistry())
            .withId(syncedGaugeId)
            .monitorValue(informer, i -> i.hasSynced() ? 1 : 0);
    PolledMeter.using(titusRuntime.getRegistry())
            .withId(stalenessGaugeId)
            .monitorValue(informer, i -> informer.hasSynced() ? 0 : -1);
}

Example #3

Source File: DefaultKubeApiFacade.java From titus-control-plane with Apache License 2.0

6 votes

private SharedIndexInformer<V1Node> createNodeInformer(SharedInformerFactory sharedInformerFactory) {
    return sharedInformerFactory.sharedIndexInformerFor(
            (CallGeneratorParams params) -> coreV1Api.listNodeCall(
                    null,
                    null,
                    null,
                    null,
                    null,
                    null,
                    params.resourceVersion,
                    params.timeoutSeconds,
                    params.watch,
                    null
            ),
            V1Node.class,
            V1NodeList.class,
            configuration.getKubeApiServerIntegratorRefreshIntervalMs()
    );
}

Example #4

Source File: KubeConstraintTest.java From titus-control-plane with Apache License 2.0

5 votes

private KubeApiFacade createKubeApiFacade() {
    Indexer<V1Node> indexer = mock(Indexer.class);
    SharedIndexInformer<V1Node> nodeInformer = mock(SharedIndexInformer.class);
    KubeApiFacade kubeApiFacade = mock(KubeApiFacade.class);

    when(kubeApiFacade.getNodeInformer()).thenReturn(nodeInformer);
    when(nodeInformer.getIndexer()).thenReturn(indexer);

    return kubeApiFacade;
}

Example #5

Source File: FitSharedIndexInformer.java From titus-control-plane with Apache License 2.0

5 votes

public FitSharedIndexInformer(String id,
                              SharedIndexInformer<T> source,
                              TitusRuntime titusRuntime) {
    this.source = source;

    FitFramework fit = titusRuntime.getFitFramework();
    this.fitKubeInjection = fit.newFitInjectionBuilder(id)
            .withDescription("SharedIndexInformer FIT injection for " + id)
            .build();
    fit.getRootComponent().getChild(DirectKubeApiServerIntegrator.COMPONENT).addInjection(fitKubeInjection);
}

Example #6

Source File: DefaultKubeApiFacade.java From titus-control-plane with Apache License 2.0

5 votes

private SharedIndexInformer<V1OpportunisticResource> createOpportunisticResourceInformer(SharedInformerFactory sharedInformerFactory) {
    return sharedInformerFactory.sharedIndexInformerFor(
            this::listOpportunisticResourcesCall,
            V1OpportunisticResource.class,
            V1OpportunisticResourceList.class,
            configuration.getKubeOpportunisticRefreshIntervalMs()
    );
}

Example #7

Source File: DefaultKubeApiFacade.java From titus-control-plane with Apache License 2.0

4 votes

@Override
public SharedIndexInformer<V1Pod> getPodInformer() {
    activate();
    return podInformer;
}

Example #8

Source File: DefaultKubeApiFacade.java From titus-control-plane with Apache License 2.0

4 votes

@Override
public SharedIndexInformer<V1OpportunisticResource> getOpportunisticResourceInformer() {
    activate();
    return opportunisticResourceInformer;
}

Example #9

Source File: DefaultKubeApiFacade.java From titus-control-plane with Apache License 2.0

4 votes

@Override
public SharedIndexInformer<V1Node> getNodeInformer() {
    activate();
    return nodeInformer;
}

Example #10

Source File: DefaultSharedIndexInformerTest.java From java with Apache License 2.0

4 votes

@Test
public void testInformerReListingOnListForbidden() throws InterruptedException {

  CoreV1Api coreV1Api = new CoreV1Api(client);

  stubFor(
      get(urlPathEqualTo("/api/v1/namespaces/" + namespace + "/pods"))
          .withQueryParam("watch", equalTo("false"))
          .willReturn(
              aResponse()
                  .withStatus(403)
                  .withHeader("Content-Type", "application/json")
                  .withBody(
                      new JSON()
                          .serialize(
                              new V1Status()
                                  .apiVersion("v1")
                                  .kind("Status")
                                  .code(403)
                                  .reason("RBAC forbidden")))));

  SharedInformerFactory factory = new SharedInformerFactory();
  SharedIndexInformer<V1Pod> podInformer =
      factory.sharedIndexInformerFor(
          (CallGeneratorParams params) -> {
            try {
              return coreV1Api.listNamespacedPodCall(
                  namespace,
                  null,
                  null,
                  null,
                  null,
                  null,
                  null,
                  params.resourceVersion,
                  params.timeoutSeconds,
                  params.watch,
                  null);
            } catch (ApiException e) {
              throw new RuntimeException(e);
            }
          },
          V1Pod.class,
          V1PodList.class);

  factory.startAllRegisteredInformers();

  // Sleep mroe than 1s so that informer can perform multiple rounds of list-watch
  Thread.sleep(3000);

  verify(
      moreThan(1),
      getRequestedFor(urlPathEqualTo("/api/v1/namespaces/" + namespace + "/pods"))
          .withQueryParam("watch", equalTo("false")));
  factory.stopAllRegisteredInformers();
}

Example #11

Source File: DefaultSharedIndexInformerTest.java From java with Apache License 2.0

4 votes

@Test
public void testInformerReListWatchOnWatchConflict() throws InterruptedException {

  CoreV1Api coreV1Api = new CoreV1Api(client);

  String startRV = "1000";
  V1PodList podList =
      new V1PodList().metadata(new V1ListMeta().resourceVersion(startRV)).items(Arrays.asList());

  stubFor(
      get(urlPathEqualTo("/api/v1/namespaces/" + namespace + "/pods"))
          .withQueryParam("watch", equalTo("false"))
          .willReturn(
              aResponse()
                  .withStatus(200)
                  .withHeader("Content-Type", "application/json")
                  .withBody(new JSON().serialize(podList))));

  Watch.Response<V1Pod> watchResponse =
      new Watch.Response<>(
          EventType.ERROR.name(), new V1Status().apiVersion("v1").kind("Status").code(409));
  stubFor(
      get(urlPathEqualTo("/api/v1/namespaces/" + namespace + "/pods"))
          .withQueryParam("watch", equalTo("true"))
          .withQueryParam("resourceVersion", equalTo(startRV))
          .willReturn(
              aResponse()
                  .withStatus(200)
                  .withHeader("Content-Type", "application/json")
                  .withBody(new JSON().serialize(watchResponse))));

  SharedInformerFactory factory = new SharedInformerFactory();
  SharedIndexInformer<V1Pod> podInformer =
      factory.sharedIndexInformerFor(
          (CallGeneratorParams params) -> {
            try {
              return coreV1Api.listNamespacedPodCall(
                  namespace,
                  null,
                  null,
                  null,
                  null,
                  null,
                  null,
                  params.resourceVersion,
                  params.timeoutSeconds,
                  params.watch,
                  null);
            } catch (ApiException e) {
              throw new RuntimeException(e);
            }
          },
          V1Pod.class,
          V1PodList.class);

  factory.startAllRegisteredInformers();

  // Sleep mroe than 1s so that informer can perform multiple rounds of list-watch
  Thread.sleep(3000);

  verify(
      moreThan(1),
      getRequestedFor(urlPathEqualTo("/api/v1/namespaces/" + namespace + "/pods"))
          .withQueryParam("watch", equalTo("false")));
  verify(
      moreThan(1),
      getRequestedFor(urlPathEqualTo("/api/v1/namespaces/" + namespace + "/pods"))
          .withQueryParam("watch", equalTo("true")));
  factory.stopAllRegisteredInformers();
}

Example #12

Source File: NoOpKubeApiFacade.java From titus-control-plane with Apache License 2.0

4 votes

@Override
public SharedIndexInformer<V1Node> getNodeInformer() {
    throw new IllegalStateException("Kubernetes not supported");
}

Example #13

Source File: NoOpKubeApiFacade.java From titus-control-plane with Apache License 2.0

4 votes

@Override
public SharedIndexInformer<V1Pod> getPodInformer() {
    throw new IllegalStateException("Kubernetes not supported");
}

Example #14

Source File: NoOpKubeApiFacade.java From titus-control-plane with Apache License 2.0

4 votes

@Override
public SharedIndexInformer<V1OpportunisticResource> getOpportunisticResourceInformer() {
    throw new IllegalStateException("Kubernetes not supported");
}

Example #15

Source File: ControllerExample.java From java with Apache License 2.0

4 votes

public NodePrintingReconciler(
    SharedIndexInformer<V1Node> nodeInformer, EventRecorder recorder) {
  this.nodeLister = new Lister<>(nodeInformer.getIndexer());
  this.eventRecorder = recorder;
}

Example #16

Source File: ControllerExample.java From java with Apache License 2.0

4 votes

public static void main(String[] args) throws IOException {

    CoreV1Api coreV1Api = new CoreV1Api();
    ApiClient apiClient = coreV1Api.getApiClient();
    OkHttpClient httpClient =
        apiClient.getHttpClient().newBuilder().readTimeout(0, TimeUnit.SECONDS).build();
    apiClient.setHttpClient(httpClient);

    // instantiating an informer-factory, and there should be only one informer-factory globally.
    SharedInformerFactory informerFactory = new SharedInformerFactory();
    // registering node-informer into the informer-factory.
    SharedIndexInformer<V1Node> nodeInformer =
        informerFactory.sharedIndexInformerFor(
            (CallGeneratorParams params) -> {
              return coreV1Api.listNodeCall(
                  null,
                  null,
                  null,
                  null,
                  null,
                  null,
                  params.resourceVersion,
                  params.timeoutSeconds,
                  params.watch,
                  null);
            },
            V1Node.class,
            V1NodeList.class);
    informerFactory.startAllRegisteredInformers();

    EventBroadcaster eventBroadcaster = new LegacyEventBroadcaster(coreV1Api);

    // nodeReconciler prints node information on events
    NodePrintingReconciler nodeReconciler =
        new NodePrintingReconciler(
            nodeInformer,
            eventBroadcaster.newRecorder(
                new V1EventSource().host("localhost").component("node-printer")));

    // Use builder library to construct a default controller.
    Controller controller =
        ControllerBuilder.defaultBuilder(informerFactory)
            .watch(
                (workQueue) ->
                    ControllerBuilder.controllerWatchBuilder(V1Node.class, workQueue)
                        .withWorkQueueKeyFunc(
                            (V1Node node) ->
                                new Request(node.getMetadata().getName())) // optional, default to
                        .withOnAddFilter(
                            (V1Node createdNode) ->
                                createdNode
                                    .getMetadata()
                                    .getName()
                                    .startsWith("docker-")) // optional, set onAdd filter
                        .withOnUpdateFilter(
                            (V1Node oldNode, V1Node newNode) ->
                                newNode
                                    .getMetadata()
                                    .getName()
                                    .startsWith("docker-")) // optional, set onUpdate filter
                        .withOnDeleteFilter(
                            (V1Node deletedNode, Boolean stateUnknown) ->
                                deletedNode
                                    .getMetadata()
                                    .getName()
                                    .startsWith("docker-")) // optional, set onDelete filter
                        .build())
            .withReconciler(nodeReconciler) // required, set the actual reconciler
            .withName("node-printing-controller") // optional, set name for controller
            .withWorkerCount(4) // optional, set worker thread count
            .withReadyFunc(
                nodeInformer
                    ::hasSynced) // optional, only starts controller when the cache has synced up
            .build();

    // Use builder library to manage one or multiple controllers.
    ControllerManager controllerManager =
        ControllerBuilder.controllerManagerBuilder(informerFactory)
            .addController(controller)
            .build();

    LeaderElectingController leaderElectingController =
        new LeaderElectingController(
            new LeaderElector(
                new LeaderElectionConfig(
                    new EndpointsLock("kube-system", "leader-election", "foo"),
                    Duration.ofMillis(10000),
                    Duration.ofMillis(8000),
                    Duration.ofMillis(5000))),
            controllerManager);

    leaderElectingController.run();
  }

Example #17

Source File: KubeApiFacade.java From titus-control-plane with Apache License 2.0

votes

SharedIndexInformer<V1Node> getNodeInformer();

Example #18

Source File: KubeApiFacade.java From titus-control-plane with Apache License 2.0

votes

SharedIndexInformer<V1Pod> getPodInformer();

Example #19

Source File: KubeApiFacade.java From titus-control-plane with Apache License 2.0

votes

SharedIndexInformer<V1OpportunisticResource> getOpportunisticResourceInformer();