Examples with ApiException io.kubernetes.client.openapi.ApiException used on opensource projects

Example 11 with ApiException

use of io.kubernetes.client.openapi.ApiException in project java by kubernetes-client.

the class LeaderElectorTest method deleteEndpointsLockResource.

private void deleteEndpointsLockResource() throws Exception {
    try {
        CoreV1Api coreV1Api = new CoreV1Api(apiClient);
        coreV1Api.deleteNamespacedEndpoints(LOCK_RESOURCE_NAME, NAMESPACE, null, null, null, null, null, null);
    } catch (ApiException ex) {
        if (ex.getCode() != HttpURLConnection.HTTP_NOT_FOUND) {
            throw ex;
        }
    }
}

Example 12 with ApiException

use of io.kubernetes.client.openapi.ApiException in project java by kubernetes-client.

the class DeployRolloutRestartExample method main.

public static void main(String[] args) throws IOException, ApiException {
    ApiClient client = Config.defaultClient();
    Configuration.setDefaultApiClient(client);
    AppsV1Api appsV1Api = new AppsV1Api(client);
    String deploymentName = "example-nginx";
    String imageName = "nginx:1.21.6";
    String namespace = "default";
    // Create an example deployment
    V1DeploymentBuilder deploymentBuilder = new V1DeploymentBuilder().withApiVersion("apps/v1").withKind("Deployment").withMetadata(new V1ObjectMeta().name(deploymentName).namespace(namespace)).withSpec(new V1DeploymentSpec().replicas(1).selector(new V1LabelSelector().putMatchLabelsItem("name", deploymentName)).template(new V1PodTemplateSpec().metadata(new V1ObjectMeta().putLabelsItem("name", deploymentName)).spec(new V1PodSpec().containers(Collections.singletonList(new V1Container().name(deploymentName).image(imageName))))));
    appsV1Api.createNamespacedDeployment(namespace, deploymentBuilder.build(), null, null, null, null);
    // Wait until example deployment is ready
    Wait.poll(Duration.ofSeconds(3), Duration.ofSeconds(60), () -> {
        try {
            System.out.println("Waiting until example deployment is ready...");
            return appsV1Api.readNamespacedDeployment(deploymentName, namespace, null).getStatus().getReadyReplicas() > 0;
        } catch (ApiException e) {
            e.printStackTrace();
            return false;
        }
    });
    System.out.println("Created example deployment!");
    // Trigger a rollout restart of the example deployment
    V1Deployment runningDeployment = appsV1Api.readNamespacedDeployment(deploymentName, namespace, null);
    // Explicitly set "restartedAt" annotation with current date/time to trigger rollout when patch
    // is applied
    runningDeployment.getSpec().getTemplate().getMetadata().putAnnotationsItem("kubectl.kubernetes.io/restartedAt", LocalDateTime.now().toString());
    try {
        String deploymentJson = client.getJSON().serialize(runningDeployment);
        PatchUtils.patch(V1Deployment.class, () -> appsV1Api.patchNamespacedDeploymentCall(deploymentName, namespace, new V1Patch(deploymentJson), null, null, "kubectl-rollout", null, null, null), V1Patch.PATCH_FORMAT_STRATEGIC_MERGE_PATCH, client);
        // Wait until deployment has stabilized after rollout restart
        Wait.poll(Duration.ofSeconds(3), Duration.ofSeconds(60), () -> {
            try {
                System.out.println("Waiting until example deployment restarted successfully...");
                return appsV1Api.readNamespacedDeployment(deploymentName, namespace, null).getStatus().getReadyReplicas() > 0;
            } catch (ApiException e) {
                e.printStackTrace();
                return false;
            }
        });
        System.out.println("Example deployment restarted successfully!");
    } catch (ApiException e) {
        e.printStackTrace();
    }
}

Example 13 with ApiException

use of io.kubernetes.client.openapi.ApiException in project java by kubernetes-client.

the class ExpandedExample method getNamespacedPod.

/**
 * List pod in specific namespace with label
 *
 * @param namespace
 * @param label
 * @return
 * @throws ApiException
 */
public static List<String> getNamespacedPod(String namespace, String label) throws ApiException {
    V1PodList listNamespacedPod = COREV1_API.listNamespacedPod(namespace, null, null, null, null, label, Integer.MAX_VALUE, null, null, TIME_OUT_VALUE, Boolean.FALSE);
    List<String> listPods = listNamespacedPod.getItems().stream().map(v1pod -> v1pod.getMetadata().getName()).collect(Collectors.toList());
    return listPods;
}

Example 14 with ApiException

use of io.kubernetes.client.openapi.ApiException in project java by kubernetes-client.

the class ExpandedExample method scaleDeployment.

/**
 * Scale up/down the number of pod in Deployment
 *
 * @param deploymentName
 * @param numberOfReplicas
 * @throws ApiException
 */
public static void scaleDeployment(String deploymentName, int numberOfReplicas) throws ApiException {
    AppsV1Api appsV1Api = new AppsV1Api();
    appsV1Api.setApiClient(COREV1_API.getApiClient());
    V1DeploymentList listNamespacedDeployment = appsV1Api.listNamespacedDeployment(DEFAULT_NAME_SPACE, null, null, null, null, null, null, null, null, null, Boolean.FALSE);
    List<V1Deployment> appsV1DeploymentItems = listNamespacedDeployment.getItems();
    Optional<V1Deployment> findedDeployment = appsV1DeploymentItems.stream().filter((V1Deployment deployment) -> deployment.getMetadata().getName().equals(deploymentName)).findFirst();
    findedDeployment.ifPresent((V1Deployment deploy) -> {
        try {
            V1DeploymentSpec newSpec = deploy.getSpec().replicas(numberOfReplicas);
            V1Deployment newDeploy = deploy.spec(newSpec);
            appsV1Api.replaceNamespacedDeployment(deploymentName, DEFAULT_NAME_SPACE, newDeploy, null, null, null, null);
        } catch (ApiException ex) {
            LOGGER.warn("Scale the pod failed for Deployment:" + deploymentName, ex);
        }
    });
}

Example 15 with ApiException

use of io.kubernetes.client.openapi.ApiException in project java by kubernetes-client.

the class PrometheusExample method main.

public static void main(String[] args) throws IOException, ApiException {
    ApiClient client = Config.defaultClient();
    Configuration.setDefaultApiClient(client);
    // Install an HTTP Interceptor that adds metrics
    Monitoring.installMetrics(client);
    // Install a simple HTTP server to serve prometheus metrics. If you already are serving
    // metrics elsewhere, this is unnecessary.
    Monitoring.startMetricsServer("localhost", 8080);
    CoreV1Api api = new CoreV1Api();
    while (true) {
        // A request that should return 200
        V1PodList list = api.listPodForAllNamespaces(null, null, null, null, null, null, null, null, null, null);
        // A request that should return 404
        try {
            V1Pod pod = api.readNamespacedPod("foo", "bar", null);
        } catch (ApiException ex) {
            if (ex.getCode() != 404) {
                throw ex;
            }
        }
        try {
            Thread.sleep(10000);
        } catch (InterruptedException ex) {
            ex.printStackTrace();
        }
    }
}