Examples with Endpoint io.fabric8.annotations.Endpoint used on opensource projects

Example 1 with Endpoint

use of io.fabric8.annotations.Endpoint in project carbon-apimgt by wso2.

the class ServiceDiscovererKubernetes method addServicesToEndpointList.

/**
 * For each service in {@code serviceList} list, methods are called to add endpoints of different types,
 * for each of service's ports
 *
 * @param serviceList filtered list of services
 */
private void addServicesToEndpointList(List<Service> serviceList, List<Endpoint> endpointList) throws MalformedURLException {
    for (Service service : serviceList) {
        // Set the parameters that does not change with the service port
        String serviceName = service.getMetadata().getName();
        String namespace = service.getMetadata().getNamespace();
        Map<String, String> labelsMap = service.getMetadata().getLabels();
        String labels = (labelsMap != null) ? labelsMap.toString() : "";
        ServiceSpec serviceSpec = service.getSpec();
        String serviceType = serviceSpec.getType();
        if (includeExternalNameTypeServices && EXTERNAL_NAME.equals(serviceType)) {
            // Since only a "ExternalName" type service can have an "externalName" (the alias in kube-dns)
            addExternalNameEndpoint(serviceName, serviceSpec.getExternalName(), namespace, labels, endpointList);
        }
        for (ServicePort servicePort : serviceSpec.getPorts()) {
            String protocol = servicePort.getName();
            if (APIMgtConstants.HTTP.equals(protocol) || APIMgtConstants.HTTPS.equals(protocol)) {
                int port = servicePort.getPort();
                if (includeClusterIP && !EXTERNAL_NAME.equals(serviceType)) {
                    // Since almost every service has a cluster IP, except for ExternalName type
                    addClusterIPEndpoint(serviceName, serviceSpec.getClusterIP(), port, protocol, namespace, labels, endpointList);
                }
                if (NODE_PORT.equals(serviceType) || LOAD_BALANCER.equals(serviceType)) {
                    // Because both "NodePort" and "LoadBalancer" types of services have "NodePort" type URLs
                    addNodePortEndpoint(serviceName, servicePort.getNodePort(), protocol, namespace, labels, endpointList);
                }
                if (LOAD_BALANCER.equals(serviceType)) {
                    // Since only "LoadBalancer" type services have "LoadBalancer" type URLs
                    addLoadBalancerEndpoint(serviceName, service, port, protocol, namespace, labels, endpointList);
                }
                // A Special case (can be any of the service types above)
                addExternalIPEndpoint(serviceName, serviceSpec.getExternalIPs(), port, protocol, namespace, labels, endpointList);
            } else if (log.isDebugEnabled()) {
                log.debug("Service:{} Namespace:{} Port:{}/{}  Application level protocol not defined.", serviceName, namespace, servicePort.getPort(), protocol);
            }
        }
    }
}

Example 2 with Endpoint

use of io.fabric8.annotations.Endpoint 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 3 with Endpoint

use of io.fabric8.annotations.Endpoint 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 4 with Endpoint

use of io.fabric8.annotations.Endpoint 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 5 with Endpoint

use of io.fabric8.annotations.Endpoint 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;
}