Examples with DockerClient com.spotify.docker.client.DockerClient used on opensource projects

Example 21 with DockerClient

use of com.spotify.docker.client.DockerClient in project helios by spotify.

the class SystemTestBase method baseTeardown.

@After
public void baseTeardown() throws Exception {
    for (final HeliosClient client : clients) {
        client.close();
    }
    clients.clear();
    for (final Service service : services) {
        try {
            service.stopAsync();
        } catch (Exception e) {
            log.error("Uncaught exception", e);
        }
    }
    for (final Service service : services) {
        try {
            service.awaitTerminated();
        } catch (Exception e) {
            log.error("Service failed", e);
        }
    }
    services.clear();
    // Clean up docker
    try (final DockerClient dockerClient = getNewDockerClient()) {
        final List<Container> containers = dockerClient.listContainers();
        for (final Container container : containers) {
            for (final String name : container.names()) {
                if (name.contains(testTag)) {
                    try {
                        dockerClient.killContainer(container.id());
                    } catch (DockerException e) {
                        e.printStackTrace();
                    }
                    break;
                }
            }
        }
    } catch (Exception e) {
        log.error("Docker client exception", e);
    }
    if (zk != null) {
        zk.close();
    }
    listThreads();
}

Example 22 with DockerClient

use of com.spotify.docker.client.DockerClient in project helios by spotify.

the class TerminationTest method testTermOnExit.

@Test
public void testTermOnExit() throws Exception {
    startDefaultMaster();
    final String host = testHost();
    startDefaultAgent(host);
    final HeliosClient client = defaultClient();
    awaitHostStatus(client, host, UP, LONG_WAIT_SECONDS, SECONDS);
    // Note: signal 15 is SIGTERM
    final Job jobToInterrupt = Job.newBuilder().setName(testJobName).setVersion(testJobVersion).setImage(BUSYBOX).setCommand(asList("/bin/sh", "-c", "trap handle 15; handle() { echo term; exit 0; }; " + "while true; do sleep 1; done")).build();
    final JobId jobId = createJob(jobToInterrupt);
    deployJob(jobId, host);
    awaitTaskState(jobId, host, RUNNING);
    client.setGoal(new Deployment(jobId, Goal.STOP, Deployment.EMTPY_DEPLOYER_USER, Deployment.EMPTY_DEPLOYER_MASTER, Deployment.EMPTY_DEPLOYMENT_GROUP_NAME), host);
    final TaskStatus taskStatus = awaitTaskState(jobId, host, STOPPED);
    final String log;
    try (final DockerClient dockerClient = getNewDockerClient();
        LogStream logs = dockerClient.logs(taskStatus.getContainerId(), stdout())) {
        log = logs.readFully();
    }
    // Message expected, because the SIGTERM handler in the script should have run
    assertEquals("term\n", log);
}

Example 23 with DockerClient

use of com.spotify.docker.client.DockerClient in project helios by spotify.

the class DeploymentTest method testLotsOfConcurrentJobs.

@Test
public void testLotsOfConcurrentJobs() throws Exception {
    startDefaultMaster();
    final HeliosClient client = defaultClient();
    startDefaultAgent(testHost());
    awaitHostRegistered(client, testHost(), LONG_WAIT_SECONDS, SECONDS);
    awaitHostStatus(client, testHost(), UP, LONG_WAIT_SECONDS, SECONDS);
    final int numberOfJobs = 40;
    final List<JobId> jobIds = Lists.newArrayListWithCapacity(numberOfJobs);
    final String jobName = testJobName + "_" + toHexString(ThreadLocalRandom.current().nextInt());
    // create and deploy a bunch of jobs
    for (Integer i = 0; i < numberOfJobs; i++) {
        final Job job = Job.newBuilder().setName(jobName).setVersion(i.toString()).setImage(BUSYBOX).setCommand(IDLE_COMMAND).setCreatingUser(TEST_USER).build();
        final JobId jobId = job.getId();
        final CreateJobResponse created = client.createJob(job).get();
        assertEquals(CreateJobResponse.Status.OK, created.getStatus());
        final Deployment deployment = Deployment.of(jobId, START, TEST_USER);
        final JobDeployResponse deployed = client.deploy(deployment, testHost()).get();
        assertEquals(JobDeployResponse.Status.OK, deployed.getStatus());
        jobIds.add(jobId);
    }
    // get the container ID's for the jobs
    final Set<String> containerIds = Sets.newHashSetWithExpectedSize(numberOfJobs);
    for (final JobId jobId : jobIds) {
        final TaskStatus taskStatus = awaitJobState(client, testHost(), jobId, RUNNING, LONG_WAIT_SECONDS, SECONDS);
        containerIds.add(taskStatus.getContainerId());
    }
    try (final DockerClient dockerClient = getNewDockerClient()) {
        // kill all the containers for the jobs
        for (final String containerId : containerIds) {
            dockerClient.killContainer(containerId);
        }
        // make sure all the containers come back up
        final int restartedContainers = Polling.await(LONG_WAIT_SECONDS, SECONDS, new Callable<Integer>() {

            @Override
            public Integer call() throws Exception {
                int matchingContainerCount = 0;
                for (final Container c : dockerClient.listContainers()) {
                    for (final String name : c.names()) {
                        if (name.contains(jobName)) {
                            matchingContainerCount++;
                        }
                    }
                }
                if (matchingContainerCount < containerIds.size()) {
                    return null;
                } else {
                    return matchingContainerCount;
                }
            }
        });
        assertEquals(numberOfJobs, restartedContainers);
    }
}

Example 24 with DockerClient

use of com.spotify.docker.client.DockerClient in project helios by spotify.

the class DnsServerTest method testDnsParam.

@Test
public void testDnsParam() throws Exception {
    final String server1 = "127.0.0.1";
    final String server2 = "127.0.0.2";
    startDefaultMaster();
    startDefaultAgent(testHost(), "--dns", server1, "--dns", server2);
    awaitHostStatus(testHost(), UP, LONG_WAIT_SECONDS, SECONDS);
    final JobId jobId = createJob(testJobName, testJobVersion, BUSYBOX, asList("cat", "/etc/resolv.conf"));
    deployJob(jobId, testHost());
    final TaskStatus taskStatus = awaitTaskState(jobId, testHost(), EXITED);
    try (final DockerClient dockerClient = getNewDockerClient()) {
        final LogStream logs = dockerClient.logs(taskStatus.getContainerId(), stdout(), stderr());
        final String log = logs.readFully();
        assertThat(log, containsString(server1));
        assertThat(log, containsString(server2));
    }
}

Example 25 with DockerClient

use of com.spotify.docker.client.DockerClient 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());
}