Examples with ServiceStatus io.fabric8.kubernetes.api.model.ServiceStatus used on opensource projects

Example 1 with ServiceStatus

use of io.fabric8.kubernetes.api.model.ServiceStatus in project fabric8 by fabric8io.

the class KubernetesHelper method getServiceURL.

/**
 * Returns the URL to access the service; using the environment variables, routes
 * or service clusterIP address
 *
 * @throws IllegalArgumentException if the URL cannot be found for the serviceName and namespace
 */
public static String getServiceURL(KubernetesClient client, String serviceName, String serviceNamespace, String serviceProtocol, String servicePortName, boolean serviceExternal) {
    Service srv = null;
    String serviceHost = KubernetesServices.serviceToHostOrBlank(serviceName);
    String servicePort = KubernetesServices.serviceToPortOrBlank(serviceName, servicePortName);
    String serviceProto = serviceProtocol != null ? serviceProtocol : KubernetesServices.serviceToProtocol(serviceName, servicePort);
    // Use specified or fallback namespace.
    String actualNamespace = Strings.isNotBlank(serviceNamespace) ? serviceNamespace : client.getNamespace();
    // 1. Inside Kubernetes: Services as ENV vars
    if (!serviceExternal && Strings.isNotBlank(serviceHost) && Strings.isNotBlank(servicePort) && Strings.isNotBlank(serviceProtocol)) {
        return serviceProtocol + "://" + serviceHost + ":" + servicePort;
    // 2. Anywhere: When namespace is passed System / Env var. Mostly needed for integration tests.
    } else if (Strings.isNotBlank(actualNamespace)) {
        try {
            srv = client.services().inNamespace(actualNamespace).withName(serviceName).get();
        } catch (Exception e) {
            LOGGER.warn("Could not lookup service:" + serviceName + " in namespace:" + actualNamespace + ", due to: " + e.getMessage());
        }
    }
    if (srv == null) {
        // lets try use environment variables
        String hostAndPort = Systems.getServiceHostAndPort(serviceName, "", "");
        if (!hostAndPort.startsWith(":")) {
            return serviceProto + "://" + hostAndPort;
        }
    }
    if (srv == null) {
        throw new IllegalArgumentException("No kubernetes service could be found for name: " + serviceName + " in namespace: " + actualNamespace);
    }
    String answer = getOrCreateAnnotations(srv).get(Annotations.Service.EXPOSE_URL);
    if (Strings.isNotBlank(answer)) {
        return answer;
    }
    try {
        if (Strings.isNullOrBlank(servicePortName) && isOpenShift(client)) {
            OpenShiftClient openShiftClient = client.adapt(OpenShiftClient.class);
            Route route = openShiftClient.routes().inNamespace(actualNamespace).withName(serviceName).get();
            if (route != null) {
                return (serviceProto + "://" + route.getSpec().getHost()).toLowerCase();
            }
        }
    } catch (KubernetesClientException e) {
        if (e.getCode() == 403) {
            LOGGER.warn("Could not lookup route:" + serviceName + " in namespace:" + actualNamespace + ", due to: " + e.getMessage());
        } else {
            throw e;
        }
    }
    ServicePort port = findServicePortByName(srv, servicePortName);
    if (port == null) {
        throw new RuntimeException("Couldn't find port: " + servicePortName + " for service:" + serviceName);
    }
    String clusterIP = srv.getSpec().getClusterIP();
    if ("None".equals(clusterIP)) {
        throw new IllegalStateException("Service: " + serviceName + " in namespace:" + serviceNamespace + "is head-less. Search for endpoints instead.");
    }
    Integer portNumber = port.getPort();
    if (Strings.isNullOrBlank(clusterIP)) {
        IngressList ingresses = client.extensions().ingresses().inNamespace(serviceNamespace).list();
        if (ingresses != null) {
            List<Ingress> items = ingresses.getItems();
            if (items != null) {
                for (Ingress item : items) {
                    String ns = getNamespace(item);
                    if (Objects.equal(serviceNamespace, ns)) {
                        IngressSpec spec = item.getSpec();
                        if (spec != null) {
                            List<IngressRule> rules = spec.getRules();
                            List<IngressTLS> tls = spec.getTls();
                            if (rules != null) {
                                for (IngressRule rule : rules) {
                                    HTTPIngressRuleValue http = rule.getHttp();
                                    if (http != null) {
                                        List<HTTPIngressPath> paths = http.getPaths();
                                        if (paths != null) {
                                            for (HTTPIngressPath path : paths) {
                                                IngressBackend backend = path.getBackend();
                                                if (backend != null) {
                                                    String backendServiceName = backend.getServiceName();
                                                    if (serviceName.equals(backendServiceName) && portsMatch(port, backend.getServicePort())) {
                                                        String pathPostfix = path.getPath();
                                                        if (tls != null) {
                                                            for (IngressTLS tlsHost : tls) {
                                                                List<String> hosts = tlsHost.getHosts();
                                                                if (hosts != null) {
                                                                    for (String host : hosts) {
                                                                        if (Strings.isNotBlank(host)) {
                                                                            if (Strings.isNullOrBlank(pathPostfix)) {
                                                                                pathPostfix = "/";
                                                                            }
                                                                            return "https://" + URLUtils.pathJoin(host, pathPostfix);
                                                                        }
                                                                    }
                                                                }
                                                            }
                                                        }
                                                        answer = rule.getHost();
                                                        if (Strings.isNotBlank(answer)) {
                                                            if (Strings.isNullOrBlank(pathPostfix)) {
                                                                pathPostfix = "/";
                                                            }
                                                            return "http://" + URLUtils.pathJoin(answer, pathPostfix);
                                                        }
                                                    }
                                                }
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
        // lets try use the status on GKE
        ServiceStatus status = srv.getStatus();
        if (status != null) {
            LoadBalancerStatus loadBalancerStatus = status.getLoadBalancer();
            if (loadBalancerStatus != null) {
                List<LoadBalancerIngress> loadBalancerIngresses = loadBalancerStatus.getIngress();
                if (loadBalancerIngresses != null) {
                    for (LoadBalancerIngress loadBalancerIngress : loadBalancerIngresses) {
                        String ip = loadBalancerIngress.getIp();
                        if (Strings.isNotBlank(ip)) {
                            clusterIP = ip;
                            break;
                        }
                    }
                }
            }
        }
    }
    if (Strings.isNullOrBlank(clusterIP)) {
        // on vanilla kubernetes we can use nodePort to access things externally
        boolean found = false;
        Integer nodePort = port.getNodePort();
        if (nodePort != null) {
            try {
                NodeList nodeList = client.nodes().list();
                if (nodeList != null) {
                    List<Node> items = nodeList.getItems();
                    if (items != null) {
                        for (Node item : items) {
                            NodeStatus status = item.getStatus();
                            if (!found && status != null) {
                                List<NodeAddress> addresses = status.getAddresses();
                                if (addresses != null) {
                                    for (NodeAddress address : addresses) {
                                        String ip = address.getAddress();
                                        if (Strings.isNotBlank(ip)) {
                                            clusterIP = ip;
                                            portNumber = nodePort;
                                            found = true;
                                            break;
                                        }
                                    }
                                }
                            }
                            if (!found) {
                                NodeSpec spec = item.getSpec();
                                if (spec != null) {
                                    clusterIP = spec.getExternalID();
                                    if (Strings.isNotBlank(clusterIP)) {
                                        portNumber = nodePort;
                                        break;
                                    }
                                }
                            }
                        }
                    }
                }
            } catch (Exception e) {
                // ignore could not find a node!
                LOG.warn("Could not find a node!: " + e, e);
            }
        }
    }
    return (serviceProto + "://" + clusterIP + ":" + portNumber).toLowerCase();
}

Example 2 with ServiceStatus

use of io.fabric8.kubernetes.api.model.ServiceStatus in project flink by apache.

the class KubernetesClientTestBase method buildExternalServiceWithLoadBalancer.

protected Service buildExternalServiceWithLoadBalancer(@Nullable String hostname, @Nullable String ip) {
    final ServicePort servicePort = new ServicePortBuilder().withName(Constants.REST_PORT_NAME).withPort(REST_PORT).withNewTargetPort(REST_PORT).build();
    final ServiceStatus serviceStatus = new ServiceStatusBuilder().withLoadBalancer(new LoadBalancerStatus(Collections.singletonList(new LoadBalancerIngress(hostname, ip, new ArrayList<>())))).build();
    return buildExternalService(KubernetesConfigOptions.ServiceExposedType.LoadBalancer, servicePort, serviceStatus, false);
}

Example 3 with ServiceStatus

use of io.fabric8.kubernetes.api.model.ServiceStatus in project flink by apache.

the class KubernetesClientTestBase method buildExternalServiceWithNodePort.

protected Service buildExternalServiceWithNodePort() {
    final ServicePort servicePort = new ServicePortBuilder().withName(Constants.REST_PORT_NAME).withPort(REST_PORT).withNodePort(NODE_PORT).withNewTargetPort(REST_PORT).build();
    final ServiceStatus serviceStatus = new ServiceStatusBuilder().withLoadBalancer(new LoadBalancerStatus(Collections.emptyList())).build();
    return buildExternalService(KubernetesConfigOptions.ServiceExposedType.NodePort, servicePort, serviceStatus, false);
}

Example 4 with ServiceStatus

use of io.fabric8.kubernetes.api.model.ServiceStatus in project fabric8 by fabric8io.

the class SessionServicesAreReady method isEndpointAvailable.

/**
 * Checks if there is an endpoint for the service available.
 * @param s The target service.
 * @return  Returns true if a connection to at least one of the endpoints is possible.
 */
private boolean isEndpointAvailable(Service s) {
    String serviceStatus = null;
    boolean result = false;
    String sid = getName(s);
    String namespace = session.getNamespace();
    Endpoints endpoints = kubernetesClient.endpoints().inNamespace(namespace).withName(sid).get();
    ServiceSpec spec = s.getSpec();
    if (endpoints != null && spec != null) {
        List<EndpointSubset> subsets = endpoints.getSubsets();
        if (subsets != null) {
            for (EndpointSubset subset : subsets) {
                List<EndpointAddress> addresses = subset.getAddresses();
                if (addresses != null) {
                    for (EndpointAddress address : addresses) {
                        String ip = address.getIp();
                        String addr = ip;
                        /*
    TODO v1beta2...
                            String addr = endpoit.substring(0, endpoit.indexOf(":"));
                            Integer port = Integer.parseInt(endpoit.substring(endpoit.indexOf(":") + 1));
*/
                        List<ServicePort> ports = spec.getPorts();
                        for (ServicePort port : ports) {
                            Integer portNumber = port.getPort();
                            if (portNumber != null && portNumber > 0) {
                                if (configuration.isWaitForServiceConnectionEnabled()) {
                                    try (Socket socket = new Socket()) {
                                        socket.connect(new InetSocketAddress(ip, portNumber), (int) configuration.getWaitForServiceConnectionTimeout());
                                        serviceStatus = "Service: " + sid + " is ready. Provider:" + addr + ".";
                                        return true;
                                    } catch (Exception e) {
                                        serviceStatus = "Service: " + sid + " is not ready! in namespace " + namespace + ". Error: " + e.getMessage();
                                    } finally {
                                        session.getLogger().warn(serviceStatus);
                                    }
                                } else {
                                    serviceStatus = "Service: " + sid + " is ready. Not testing connecting to it!. Provider:" + addr + ".";
                                    session.getLogger().warn(serviceStatus);
                                    return true;
                                }
                            }
                        }
                    }
                }
            }
        }
    }
    session.getLogger().warn("Service: " + sid + " has no valid endpoints");
    return result;
}