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

Example 6 with Client

use of io.fabric8.kubernetes.client.Client in project carbon-apimgt by wso2.

the class ServiceDiscovererKubernetes method listServices.

/**
 * {@inheritDoc}
 */
@Override
public List<Endpoint> listServices(String namespace, Map<String, String> criteria) throws ServiceDiscoveryException {
    List<Endpoint> endpointList = new ArrayList<>();
    if (client != null) {
        log.debug("Looking for services, with the specified labels, in namespace {}", namespace);
        try {
            List<Service> serviceList = client.services().inNamespace(namespace).withLabels(criteria).list().getItems();
            addServicesToEndpointList(serviceList, endpointList);
        } catch (KubernetesClientException | MalformedURLException e) {
            String msg = "Error occurred while trying to list services using Kubernetes client";
            throw new ServiceDiscoveryException(msg, e, ExceptionCodes.ERROR_WHILE_TRYING_TO_DISCOVER_SERVICES);
        } catch (NoSuchMethodError e) {
            String msg = "Filtering criteria in the deployment yaml includes unwanted characters";
            throw new ServiceDiscoveryException(msg, e, ExceptionCodes.ERROR_WHILE_TRYING_TO_DISCOVER_SERVICES);
        }
    }
    return endpointList;
}

Example 7 with Client

use of io.fabric8.kubernetes.client.Client in project carbon-apimgt by wso2.

the class ServiceDiscovererKubernetes method listServices.

/**
 * {@inheritDoc}
 */
@Override
public List<Endpoint> listServices() throws ServiceDiscoveryException {
    List<Endpoint> endpointList = new ArrayList<>();
    if (client != null) {
        log.debug("Looking for services in all namespaces");
        try {
            List<Service> serviceList = client.services().inNamespace(null).list().getItems();
            addServicesToEndpointList(serviceList, endpointList);
        } catch (KubernetesClientException | MalformedURLException e) {
            String msg = "Error occurred while trying to list services using Kubernetes client";
            throw new ServiceDiscoveryException(msg, e, ExceptionCodes.ERROR_WHILE_TRYING_TO_DISCOVER_SERVICES);
        }
    }
    return endpointList;
}

Example 8 with Client

use of io.fabric8.kubernetes.client.Client in project carbon-apimgt by wso2.

the class ServiceDiscovererKubernetes method listServices.

/**
 * {@inheritDoc}
 */
@Override
public List<Endpoint> listServices(String namespace) throws ServiceDiscoveryException {
    List<Endpoint> endpointList = new ArrayList<>();
    if (client != null) {
        log.debug("Looking for services in namespace {}", namespace);
        try {
            List<Service> serviceList = client.services().inNamespace(namespace).list().getItems();
            addServicesToEndpointList(serviceList, endpointList);
        } catch (KubernetesClientException | MalformedURLException e) {
            String msg = "Error occurred while trying to list services using Kubernetes client";
            throw new ServiceDiscoveryException(msg, e, ExceptionCodes.ERROR_WHILE_TRYING_TO_DISCOVER_SERVICES);
        }
    }
    return endpointList;
}

Example 9 with Client

use of io.fabric8.kubernetes.client.Client in project carbon-apimgt by wso2.

the class ServiceDiscovererKubernetes method buildConfig.

/**
 * Builds the Config required by DefaultOpenShiftClient
 * Also sets the system properties
 * (1) to not refer .kube/config file and
 * (2) the client to use service account procedure to get authenticated and authorised
 *
 * @return {@link io.fabric8.kubernetes.client.Config} object to build the client
 * @throws ServiceDiscoveryException if an error occurs while building the config using externally stored token
 */
private Config buildConfig(Map<String, String> implParameters) throws ServiceDiscoveryException, APIMgtDAOException {
    System.setProperty(TRY_KUBE_CONFIG, "false");
    System.setProperty(TRY_SERVICE_ACCOUNT, "true");
    /*
         *  Common to both situations,
         *      - Token found inside APIM pod
         *      - Token stored in APIM resources/security folder }
         */
    ConfigBuilder configBuilder = new ConfigBuilder().withMasterUrl(implParameters.get(MASTER_URL)).withCaCertFile(implParameters.get(CA_CERT_PATH));
    /*
         *  Check if a service account token File Name is given in the configuration
         *      - if not : assume APIM is running inside a pod and look for the pod's token
         */
    String externalSATokenFileName = implParameters.get(EXTERNAL_SA_TOKEN_FILE_NAME);
    if (StringUtils.isEmpty(externalSATokenFileName)) {
        log.debug("Looking for service account token in " + POD_MOUNTED_SA_TOKEN_FILE_PATH);
        String podMountedSAToken = APIFileUtils.readFileContentAsText(implParameters.get(POD_MOUNTED_SA_TOKEN_FILE_PATH));
        return configBuilder.withOauthToken(podMountedSAToken).build();
    } else {
        log.info("Using externally stored service account token");
        return configBuilder.withOauthToken(resolveToken("encrypted" + externalSATokenFileName)).build();
    }
}

Example 10 with Client

use of io.fabric8.kubernetes.client.Client in project carbon-apimgt by wso2.

the class ServiceDiscovererKubernetes method listServices.

/**
 * {@inheritDoc}
 */
@Override
public List<Endpoint> listServices(Map<String, String> criteria) throws ServiceDiscoveryException {
    List<Endpoint> endpointList = new ArrayList<>();
    if (client != null) {
        log.debug("Looking for services, with the specified labels, in all namespaces");
        try {
            // namespace has to be set to null to check all allowed namespaces
            List<Service> serviceList = client.services().inNamespace(null).withLabels(criteria).list().getItems();
            addServicesToEndpointList(serviceList, endpointList);
        } catch (KubernetesClientException | MalformedURLException e) {
            String msg = "Error occurred while trying to list services using Kubernetes client";
            throw new ServiceDiscoveryException(msg, e, ExceptionCodes.ERROR_WHILE_TRYING_TO_DISCOVER_SERVICES);
        } catch (NoSuchMethodError e) {
            String msg = "Filtering criteria in the deployment yaml includes unwanted characters";
            throw new ServiceDiscoveryException(msg, e, ExceptionCodes.ERROR_WHILE_TRYING_TO_DISCOVER_SERVICES);
        }
    }
    return endpointList;
}