Java Code Examples for io.fabric8.kubernetes.api.model.apiextensions.CustomResourceDefinitionList#getItems()

/**
 * Setting up custom resources
 */
public void setupCRDs() {

    CustomResourceDefinitionList crds = client.customResourceDefinitions().list();
    List<CustomResourceDefinition> crdsItems = crds.getItems();

    for (CustomResourceDefinition crd : crdsItems) {
        ObjectMeta metadata = crd.getMetadata();
        if (metadata != null) {
            String name = metadata.getName();
            if (RULE_CRD_NAME.equals(name)) {
                ruleCRD = crd;
            } else if (HTTPAPISpec_CRD_NAME.equals(name)) {
                httpAPISpecCRD = crd;
            } else if (HTTPAPISpecBinding_CRD_NAME.equals(name)) {
                httpAPISpecBindingCRD = crd;
            }
        }
    }

}
 

@Test
public void testListWithFields() {
  final CustomResourceDefinitionList customResourceDefinitionList = new CustomResourceDefinitionListBuilder()
    .addNewItem().and()
    .addNewItem().and()
    .build();

  server.expect().get().withPath("/apis/apiextensions.k8s.io/v1beta1/customresourcedefinitions?fieldSelector=" + Utils
      .toUrlEncoded("key1=value1,key2=value2,key3!=value3,key3!=value4")).andReturn(HttpURLConnection.HTTP_CREATED, customResourceDefinitionList).once();
  KubernetesClient client = server.getClient();

  CustomResourceDefinitionList list = client.customResourceDefinitions()
    .withField("key1", "value1")
    .withField("key2","value2")
    .withoutField("key3","value3")
    .withoutField("key3", "value4")
    .list();

  List<CustomResourceDefinition> items = list.getItems();
  assertNotNull(items);
  assertEquals(2, items.size());
}
 

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();
  }
}
 

private boolean areRequiredCRDsPresent() {
    try {
        appService.registerCustomResourcesForRuntime();

        CustomResourceDefinitionList crds = k8SCoreRuntime.getCustomResourceDefinitionList();
        for (CustomResourceDefinition crd : crds.getItems()) {
            ObjectMeta metadata = crd.getMetadata();
            if (metadata != null) {
                String name = metadata.getName();
                if (AppCRDs.MICROSERVICE_CRD_NAME.equals(name)) {
                    microServiceCRD = crd;
                }
                if (AppCRDs.GATEWAY_CRD_NAME.equals(name)) {
                    gatewayCRD = crd;
                }
                if (AppCRDs.REGISTRY_CRD_NAME.equals(name)) {
                    registryCRD = crd;
                }
                if (AppCRDs.APP_CRD_NAME.equals(name)) {
                    applicationCRD = crd;
                }
            }
        }
        if (allCRDsFound()) {
            logger.info("\t > App CRD: " + applicationCRD.getMetadata().getName());
            logger.info("\t > MicroService CRD: " + microServiceCRD.getMetadata().getName());
            logger.info("\t > Registry CRD: " + registryCRD.getMetadata().getName());
            logger.info("\t > Gateway CRD: " + gatewayCRD.getMetadata().getName());
            return true;
        } else {
            logger.error("> Custom CRDs required to work not found please check your installation!");
            logger.error("\t > App CRD: " + ((applicationCRD == null) ? " NOT FOUND " : applicationCRD.getMetadata().getName()));
            logger.error("\t > MicroService CRD: " + ((microServiceCRD == null) ? " NOT FOUND " : microServiceCRD.getMetadata().getName()));
            logger.error("\t > Registry CRD: " + ((registryCRD == null) ? " NOT FOUND " : registryCRD.getMetadata().getName()));
            logger.error("\t > Gateway CRD: " + ((gatewayCRD == null) ? " NOT FOUND " : gatewayCRD.getMetadata().getName()));
            return false;
        }
    } catch (Exception e) {
        e.printStackTrace();
        logger.error("> Init sequence not done");
    }
    return false;
}
 

/**
 * Deploys the API Custom resource kind in kubernetes
 *
 * @param client         , Openshift client
 * @param configmapNames , Name of the configmap
 * @param replicas       , number of replicas
 * @param apiIdentifier  , APIIdentifier
 * @param override       , Checks whether the API CR needs to be overrode or not
 */
private void applyAPICustomResourceDefinition(OpenShiftClient client, String[] configmapNames, int replicas,
                                              APIIdentifier apiIdentifier, Boolean override) {

    CustomResourceDefinitionList customResourceDefinitionList = client.customResourceDefinitions().list();
    List<CustomResourceDefinition> customResourceDefinitionItems = customResourceDefinitionList.getItems();
    CustomResourceDefinition apiCustomResourceDefinition = null;

    for (CustomResourceDefinition crd : customResourceDefinitionItems) {
        ObjectMeta metadata = crd.getMetadata();

        if (metadata != null && metadata.getName().equals(API_CRD_NAME)) {

            apiCustomResourceDefinition = crd;
        }
    }

    if (apiCustomResourceDefinition != null) {
        log.info("Found [CRD] " + apiCustomResourceDefinition.getMetadata().getSelfLink());
    } else {

        log.error("Custom resource definition apis.wso2.com was not found in the specified cluster");
        return;
    }

    NonNamespaceOperation<APICustomResourceDefinition, APICustomResourceDefinitionList,
            DoneableAPICustomResourceDefinition, Resource<APICustomResourceDefinition,
            DoneableAPICustomResourceDefinition>> apiCrdClient = getCRDClient(client, apiCustomResourceDefinition);

    // assigning values and creating API cr
    Definition definition = new Definition();
    Interceptors interceptors = new Interceptors();
    interceptors.setBallerina(new String[]{});
    interceptors.setJava(new String[]{});
    definition.setType(SWAGGER);
    definition.setSwaggerConfigmapNames(configmapNames);
    definition.setInterceptors(interceptors);

    APICustomResourceDefinitionSpec apiCustomResourceDefinitionSpec = new APICustomResourceDefinitionSpec();
    apiCustomResourceDefinitionSpec.setDefinition(definition);
    apiCustomResourceDefinitionSpec.setMode(MODE);
    apiCustomResourceDefinitionSpec.setReplicas(replicas);
    apiCustomResourceDefinitionSpec.setOverride(override);
    apiCustomResourceDefinitionSpec.setUpdateTimeStamp("");

    Status status = new Status();

    APICustomResourceDefinition apiCustomResourceDef = new APICustomResourceDefinition();
    apiCustomResourceDef.setSpec(apiCustomResourceDefinitionSpec);
    apiCustomResourceDef.setStatus(status);
    apiCustomResourceDef.setApiVersion(API_VERSION);
    apiCustomResourceDef.setKind(CRD_KIND);
    ObjectMeta meta = new ObjectMeta();
    meta.setName(apiIdentifier.getApiName().toLowerCase());
    meta.setNamespace(client.getNamespace());
    apiCustomResourceDef.setMetadata(meta);
    apiCrdClient.createOrReplace(apiCustomResourceDef);

    log.info("Created [API-CR] apis.wso2.com/" + apiCustomResourceDef.getMetadata().getName() + " for the "
            + "[API] " + apiIdentifier.getApiName());
}