Examples with ServiceRegistration com.spotify.helios.serviceregistration.ServiceRegistration used on opensource projects

Example 6 with ServiceRegistration

use of com.spotify.helios.serviceregistration.ServiceRegistration in project helios by spotify.

the class HealthCheckTest method testExec.

@Test
public void testExec() throws Exception {
    // CircleCI uses lxc which doesn't support exec - https://circleci.com/docs/docker/#docker-exec
    assumeFalse(isCircleCi());
    final DockerClient dockerClient = getNewDockerClient();
    assumeThat(dockerClient.version(), is(execCompatibleDockerVersion()));
    startDefaultMaster();
    final HeliosClient client = defaultClient();
    startDefaultAgent(testHost(), "--service-registry=" + registryAddress);
    awaitHostStatus(client, testHost(), UP, LONG_WAIT_SECONDS, SECONDS);
    // check if "file" exists in the root directory as a healthcheck
    final HealthCheck healthCheck = ExecHealthCheck.of("test", "-e", "file");
    // start a container that listens on the service port
    final String portName = "service";
    final String serviceName = "foo_service";
    final String serviceProtocol = "foo_proto";
    final Job job = Job.newBuilder().setName(testJobName).setVersion(testJobVersion).setImage(BUSYBOX).setCommand(asList("sh", "-c", "nc -l -p 4711")).addPort(portName, PortMapping.of(4711)).addRegistration(ServiceEndpoint.of(serviceName, serviceProtocol), ServicePorts.of(portName)).setHealthCheck(healthCheck).build();
    final JobId jobId = createJob(job);
    deployJob(jobId, testHost());
    final TaskStatus jobState = awaitTaskState(jobId, testHost(), HEALTHCHECKING);
    // wait a few seconds to see if the service gets registered
    Thread.sleep(3000);
    // shouldn't be registered, since we haven't created the file yet
    verify(registrar, never()).register(any(ServiceRegistration.class));
    // create the file in the container to make the healthcheck succeed
    final String[] makeFileCmd = new String[] { "touch", "file" };
    final ExecCreation execCreation = dockerClient.execCreate(jobState.getContainerId(), makeFileCmd);
    final String execId = execCreation.id();
    dockerClient.execStart(execId);
    awaitTaskState(jobId, testHost(), RUNNING);
    dockerClient.close();
    verify(registrar, timeout((int) SECONDS.toMillis(LONG_WAIT_SECONDS))).register(registrationCaptor.capture());
    final ServiceRegistration serviceRegistration = registrationCaptor.getValue();
    assertEquals(1, serviceRegistration.getEndpoints().size());
    final Endpoint registeredEndpoint = serviceRegistration.getEndpoints().get(0);
    assertEquals("wrong service", serviceName, registeredEndpoint.getName());
    assertEquals("wrong protocol", serviceProtocol, registeredEndpoint.getProtocol());
}