Java Code Examples for io.fabric8.kubernetes.client.KubernetesClientException#printStackTrace()

public static void main(String[] args) {
  try {
    OpenShiftClient client = new DefaultOpenShiftClient();
    String namespace = client.getNamespace();
    System.out.println("Watching BuildConfigs in namespace " + namespace);
    try (Watch watchable = client.buildConfigs().inNamespace(namespace).watch(new Watcher<BuildConfig>() {
      @Override
      public void eventReceived(Action action, BuildConfig resource) {
        System.out.println(">> Action: " + action + " on BuildConfig " + resource.getMetadata().getName() + " with version: " + resource.getApiVersion());
      }

      @Override
      public void onClose(KubernetesClientException cause) {
        System.out.println("Watch Closed: " + cause);
        if (cause != null) {
          cause.printStackTrace();
        }
      }
    })) {
      System.out.println("Created watchable " + watchable);
    }
  } catch (KubernetesClientException e) {
    System.out.println("Failed: " + e);
    e.printStackTrace();
  }
}
 

public static void main(String[] args) {
  try {
    OpenShiftClient client = new DefaultOpenShiftClient();
    if (!client.supportsOpenShiftAPIGroup(OpenShiftAPIGroups.BUILD)) {
      System.out.println("WARNING this cluster does not support the API Group " + OpenShiftAPIGroups.BUILD);
      return;
    }
    BuildConfigList list = client.buildConfigs().list();
    if (list == null) {
      System.out.println("ERROR no list returned!");
      return;
    }
    List<BuildConfig> items = list.getItems();
    for (BuildConfig item : items) {
      System.out.println("BuildConfig " + item.getMetadata().getName() + " has version: " + item.getApiVersion());
    }
  } catch (KubernetesClientException e) {
    System.out.println("Failed: " + e);
    e.printStackTrace();
  }
}
 

public static void main(String[] args) {
  try {
    OpenShiftClient client = new DefaultOpenShiftClient();
    if (!client.supportsOpenShiftAPIGroup(OpenShiftAPIGroups.IMAGE)) {
      System.out.println("WARNING this cluster does not support the API Group " + OpenShiftAPIGroups.IMAGE);
      return;
    }
    ImageStreamList list = client.imageStreams().list();
    if (list == null) {
      System.out.println("ERROR no list returned!");
      return;
    }
    List<ImageStream> items = list.getItems();
    for (ImageStream item : items) {
      System.out.println("ImageStream " + item.getMetadata().getName() + " has version: " + item.getApiVersion());
    }
    System.out.println("Found " + items.size() + " ImageStream(s)");
  } catch (KubernetesClientException e) {
    System.out.println("Failed: " + e);
    e.printStackTrace();
  }
}
 

public static void main(String[] args) {
  try {
    KubernetesClient client = new DefaultKubernetesClient();
    if (!client.supportsApiPath("/apis/apiextensions.k8s.io/v1beta1") && !client.supportsApiPath("/apis/apiextensions.k8s.io/v1")) {
      System.out.println("WARNING this cluster does not support the API Group apiextensions.k8s.io");
      return;
    }
    CustomResourceDefinitionList list = client.customResourceDefinitions().list();
    if (list == null) {
      System.out.println("ERROR no list returned!");
      return;
    }
    List<CustomResourceDefinition> items = list.getItems();
    for (CustomResourceDefinition item : items) {
      System.out.println("CustomResourceDefinition " + item.getMetadata().getName() + " has version: " + item.getApiVersion());
    }
  } catch (KubernetesClientException e) {
    System.out.println("Failed: " + e);
    e.printStackTrace();
  }
}
 

public static void main(String[] args) {
  try {
    OpenShiftClient client = new DefaultOpenShiftClient();
    if (!client.supportsOpenShiftAPIGroup(OpenShiftAPIGroups.APPS)) {
      System.out.println("WARNING this cluster does not support the API Group " + OpenShiftAPIGroups.APPS);
      return;
    }
    DeploymentConfigList list = client.deploymentConfigs().list();
    if (list == null) {
      System.out.println("ERROR no list returned!");
      return;
    }
    List<DeploymentConfig> items = list.getItems();
    for (DeploymentConfig item : items) {
      System.out.println("DeploymentConfig " + item.getMetadata().getName() + " has version: " + item.getApiVersion());
    }

    if (items.size() > 0) {
      // lets check .get() too
      DeploymentConfig deploymentConfig = items.get(0);
      String name = deploymentConfig.getMetadata().getName();
      deploymentConfig = client.deploymentConfigs().withName(name).get();
      assertNotNull("No DeploymentConfig found for name " + name, deploymentConfig);
      System.out.println("get() DeploymentConfig " + name + " has version: " + deploymentConfig.getApiVersion());
    }
  } catch (KubernetesClientException e) {
    System.out.println("Failed: " + e);
    e.printStackTrace();
  }
}
 

public static void main(String args[]) throws InterruptedException {
  String master = "https://192.168.99.100:8443/";
  if (args.length == 1) {
    master = args[0];
  }

  log("Using master with url ", master);
  Config config = new ConfigBuilder().withMasterUrl(master).build();
  try (final KubernetesClient client = new DefaultKubernetesClient(config)) {
    PriorityClass priorityClass = new PriorityClassBuilder()
      .withNewMetadata().withName("high-priority").endMetadata()
      .withValue(new Integer(100000))
      .withGlobalDefault(false)
      .withDescription("This priority class should be used for XYZ service pods only.")
      .build();
    client.scheduling().priorityClass().create(priorityClass);

    client.pods().inNamespace("default").create(new PodBuilder()
      .withNewMetadata().withName("nginx").withLabels(Collections.singletonMap("env", "test")).endMetadata()
      .withNewSpec()
      .addToContainers(new ContainerBuilder().withName("nginx").withImage("nginx").withImagePullPolicy("IfNotPresent").build())
      .withPriorityClassName("high-priority")
      .endSpec()
      .build()
    );
  } catch (KubernetesClientException e) {
    e.printStackTrace();
    log("Could not create resource", e.getMessage());
  }
}