Examples with Watch io.fabric8.kubernetes.client.Watch used on opensource projects

Example 21 with Watch

use of io.fabric8.kubernetes.client.Watch in project strimzi by strimzi.

the class AbstractAssemblyOperator method reconcileAll.

/**
 * Reconcile assembly resources in the given namespace having the given selector.
 * Reconciliation works by getting the assembly ConfigMaps in the given namespace with the given selector and
 * comparing with the corresponding {@linkplain #getResources(String) resource}.
 * <ul>
 * <li>An assembly will be {@linkplain #createOrUpdate(Reconciliation, ConfigMap, Handler) created} for all ConfigMaps without same-named resources</li>
 * <li>An assembly will be {@linkplain #delete(Reconciliation, Handler) deleted} for all resources without same-named ConfigMaps</li>
 * </ul>
 *
 * @param trigger A description of the triggering event (timer or watch), used for logging
 * @param namespace The namespace
 * @param selector The selector
 */
public final CountDownLatch reconcileAll(String trigger, String namespace, Labels selector) {
    Labels selectorWithCluster = selector.withType(assemblyType);
    // get ConfigMaps with kind=cluster&type=kafka (or connect, or connect-s2i) for the corresponding cluster type
    List<ConfigMap> cms = configMapOperations.list(namespace, selectorWithCluster);
    Set<String> cmsNames = cms.stream().map(cm -> cm.getMetadata().getName()).collect(Collectors.toSet());
    log.debug("reconcileAll({}, {}): ConfigMaps with labels {}: {}", assemblyType, trigger, selectorWithCluster, cmsNames);
    // get resources with kind=cluster&type=kafka (or connect, or connect-s2i)
    List<? extends HasMetadata> resources = getResources(namespace);
    // now extract the cluster name from those
    Set<String> resourceNames = resources.stream().filter(// exclude Cluster CM, which won't have a cluster label
    r -> Labels.kind(r) == null).map(Labels::cluster).collect(Collectors.toSet());
    log.debug("reconcileAll({}, {}): Other resources with labels {}: {}", assemblyType, trigger, selectorWithCluster, resourceNames);
    cmsNames.addAll(resourceNames);
    // We use a latch so that callers (specifically, test callers) know when the reconciliation is complete
    // Using futures would be more complex for no benefit
    CountDownLatch latch = new CountDownLatch(cmsNames.size());
    for (String name : cmsNames) {
        Reconciliation reconciliation = new Reconciliation(trigger, assemblyType, namespace, name);
        reconcileAssembly(reconciliation, result -> {
            if (result.succeeded()) {
                log.info("{}: Assembly reconciled", reconciliation);
            } else {
                log.error("{}: Failed to reconcile", reconciliation);
            }
            latch.countDown();
        });
    }
    return latch;
}

Example 22 with Watch

use of io.fabric8.kubernetes.client.Watch in project strimzi by strimzi.

the class ClusterController method createConfigMapWatch.

private void createConfigMapWatch(Handler<AsyncResult<Watch>> handler) {
    getVertx().executeBlocking(future -> {
        Watch watch = client.configMaps().inNamespace(namespace).withLabels(selector.toMap()).watch(new Watcher<ConfigMap>() {

            @Override
            public void eventReceived(Action action, ConfigMap cm) {
                Labels labels = Labels.fromResource(cm);
                AssemblyType type;
                try {
                    type = labels.type();
                } catch (IllegalArgumentException e) {
                    log.warn("Unknown {} label {} received in Config Map {} in namespace {}", Labels.STRIMZI_TYPE_LABEL, cm.getMetadata().getLabels().get(Labels.STRIMZI_TYPE_LABEL), cm.getMetadata().getName(), namespace);
                    return;
                }
                final AbstractAssemblyOperator cluster;
                if (type == null) {
                    log.warn("Missing label {} in Config Map {} in namespace {}", Labels.STRIMZI_TYPE_LABEL, cm.getMetadata().getName(), namespace);
                    return;
                } else {
                    switch(type) {
                        case KAFKA:
                            cluster = kafkaAssemblyOperator;
                            break;
                        case CONNECT:
                            cluster = kafkaConnectAssemblyOperator;
                            break;
                        case CONNECT_S2I:
                            cluster = kafkaConnectS2IAssemblyOperator;
                            break;
                        default:
                            return;
                    }
                }
                String name = cm.getMetadata().getName();
                switch(action) {
                    case ADDED:
                    case DELETED:
                    case MODIFIED:
                        Reconciliation reconciliation = new Reconciliation("watch", type, namespace, name);
                        log.info("{}: ConfigMap {} in namespace {} was {}", reconciliation, name, namespace, action);
                        cluster.reconcileAssembly(reconciliation, result -> {
                            if (result.succeeded()) {
                                log.info("{}: assembly reconciled", reconciliation);
                            } else {
                                log.error("{}: Failed to reconcile", reconciliation);
                            }
                        });
                        break;
                    case ERROR:
                        log.error("Failed ConfigMap {} in namespace{} ", name, namespace);
                        reconcileAll("watch error");
                        break;
                    default:
                        log.error("Unknown action: {} in namespace {}", name, namespace);
                        reconcileAll("watch unknown");
                }
            }

            @Override
            public void onClose(KubernetesClientException e) {
                if (e != null) {
                    log.error("Watcher closed with exception in namespace {}", namespace, e);
                } else {
                    log.info("Watcher closed in namespace {}", namespace);
                }
                recreateConfigMapWatch();
            }
        });
        future.complete(watch);
    }, res -> {
        if (res.succeeded()) {
            log.info("ConfigMap watcher running for labels {}", selector);
            handler.handle(Future.succeededFuture((Watch) res.result()));
        } else {
            log.info("ConfigMap watcher failed to start", res.cause());
            handler.handle(Future.failedFuture("ConfigMap watcher failed to start"));
        }
    });
}

Example 23 with Watch

use of io.fabric8.kubernetes.client.Watch in project strimzi by strimzi.

the class ControllerIT method testCreateTwoConfigMapsManagingOneTopic.

@Test
public void testCreateTwoConfigMapsManagingOneTopic(TestContext context) {
    String topicName = "two-cms-one-topic";
    Topic topic = new Topic.Builder(topicName, 1, (short) 1, emptyMap()).build();
    ConfigMap cm = TopicSerialization.toConfigMap(topic, cmPredicate);
    ConfigMap cm2 = new ConfigMapBuilder(cm).editMetadata().withName(topicName + "-1").endMetadata().build();
    // create one
    createCm(context, cm2);
    // create another
    kubeClient.configMaps().inNamespace(NAMESPACE).create(cm);
    waitForEvent(context, cm, "Failure processing ConfigMap watch event ADDED on map two-cms-one-topic with labels {strimzi.io/kind=topic}: " + "Topic 'two-cms-one-topic' is already managed via ConfigMap 'two-cms-one-topic-1' it cannot also be managed via the ConfiMap 'two-cms-one-topic'", Controller.EventType.WARNING);
}

Example 24 with Watch

use of io.fabric8.kubernetes.client.Watch in project fabric8-maven-plugin by fabric8io.

the class ApplyMojo method applyEntities.

protected void applyEntities(Controller controller, KubernetesClient kubernetes, String namespace, String fileName, Set<HasMetadata> entities) throws Exception {
    // Apply all items
    for (HasMetadata entity : entities) {
        if (entity instanceof Pod) {
            Pod pod = (Pod) entity;
            controller.applyPod(pod, fileName);
        } else if (entity instanceof Service) {
            Service service = (Service) entity;
            controller.applyService(service, fileName);
        } else if (entity instanceof ReplicationController) {
            ReplicationController replicationController = (ReplicationController) entity;
            controller.applyReplicationController(replicationController, fileName);
        } else if (entity != null) {
            controller.apply(entity, fileName);
        }
    }
    String command = clusterAccess.isOpenShiftImageStream(log) ? "oc" : "kubectl";
    log.info("[[B]]HINT:[[B]] Use the command `%s get pods -w` to watch your pods start up", command);
    Logger serviceLogger = createExternalProcessLogger("[[G]][SVC][[G]] ");
    long serviceUrlWaitTimeSeconds = this.serviceUrlWaitTimeSeconds;
    for (HasMetadata entity : entities) {
        if (entity instanceof Service) {
            Service service = (Service) entity;
            String name = getName(service);
            Resource<Service, DoneableService> serviceResource = kubernetes.services().inNamespace(namespace).withName(name);
            String url = null;
            // lets wait a little while until there is a service URL in case the exposecontroller is running slow
            for (int i = 0; i < serviceUrlWaitTimeSeconds; i++) {
                if (i > 0) {
                    Thread.sleep(1000);
                }
                Service s = serviceResource.get();
                if (s != null) {
                    url = getExternalServiceURL(s);
                    if (Strings.isNotBlank(url)) {
                        break;
                    }
                }
                if (!isExposeService(service)) {
                    break;
                }
            }
            // lets not wait for other services
            serviceUrlWaitTimeSeconds = 1;
            if (Strings.isNotBlank(url) && url.startsWith("http")) {
                serviceLogger.info("" + name + ": " + url);
            }
        }
    }
}

Example 25 with Watch

use of io.fabric8.kubernetes.client.Watch in project fabric8-maven-plugin by fabric8io.

the class ResourceMojo method lateInit.

private void lateInit() throws MojoExecutionException {
    if (goalFinder.runningWithGoal(project, session, "fabric8:watch") || goalFinder.runningWithGoal(project, session, "fabric8:watch")) {
        Properties properties = project.getProperties();
        properties.setProperty("fabric8.watch", "true");
    }
    platformMode = clusterAccess.resolvePlatformMode(mode, log);
    log.info("Running in [[B]]%s[[B]] mode", platformMode.getLabel());
    if (isOpenShiftMode()) {
        Properties properties = project.getProperties();
        if (!properties.contains(DOCKER_IMAGE_USER)) {
            String namespace = clusterAccess.getNamespace();
            log.info("Using docker image name of namespace: " + namespace);
            properties.setProperty(DOCKER_IMAGE_USER, namespace);
        }
        if (!properties.contains(PlatformMode.FABRIC8_EFFECTIVE_PLATFORM_MODE)) {
            properties.setProperty(PlatformMode.FABRIC8_EFFECTIVE_PLATFORM_MODE, platformMode.toString());
        }
    }
    openShiftConverters = new HashMap<>();
    openShiftConverters.put("ReplicaSet", new ReplicSetOpenShiftConverter());
    openShiftConverters.put("Deployment", new DeploymentOpenShiftConverter(platformMode, getOpenshiftDeployTimeoutSeconds()));
    // TODO : This converter shouldn't be here. See its javadoc.
    openShiftConverters.put("DeploymentConfig", new DeploymentConfigOpenShiftConverter(getOpenshiftDeployTimeoutSeconds()));
    openShiftConverters.put("Namespace", new NamespaceOpenShiftConverter());
    handlerHub = new HandlerHub(project);
}