Esempio n. 1
0
Task createTask(
    const TaskInfo& task,
    const TaskState& state,
    const FrameworkID& frameworkId)
{
  Task t;
  t.mutable_framework_id()->CopyFrom(frameworkId);
  t.set_state(state);
  t.set_name(task.name());
  t.mutable_task_id()->CopyFrom(task.task_id());
  t.mutable_slave_id()->CopyFrom(task.slave_id());
  t.mutable_resources()->CopyFrom(task.resources());

  if (task.has_executor()) {
    t.mutable_executor_id()->CopyFrom(task.executor().executor_id());
  }

  if (task.has_labels()) {
    t.mutable_labels()->CopyFrom(task.labels());
  }

  if (task.has_discovery()) {
    t.mutable_discovery()->CopyFrom(task.discovery());
  }

  if (task.has_container()) {
    t.mutable_container()->CopyFrom(task.container());
  }

  // Copy `user` if set.
  if (task.has_command() && task.command().has_user()) {
    t.set_user(task.command().user());
  } else if (task.has_executor() && task.executor().command().has_user()) {
    t.set_user(task.executor().command().user());
  }

  return t;
}
Esempio n. 2
0
  void launchTask(ExecutorDriver* driver, const TaskInfo& task)
  {
    if (run.isSome()) {
      // TODO(alexr): Use `protobuf::createTaskStatus()`
      // instead of manually setting fields.
      TaskStatus status;
      status.mutable_task_id()->CopyFrom(task.task_id());
      status.set_state(TASK_FAILED);
      status.set_message(
          "Attempted to run multiple tasks using a \"docker\" executor");

      driver->sendStatusUpdate(status);
      return;
    }

    // Capture the TaskID.
    taskId = task.task_id();

    // Capture the kill policy.
    if (task.has_kill_policy()) {
      killPolicy = task.kill_policy();
    }

    LOG(INFO) << "Starting task " << taskId.get();

    CHECK(task.has_container());
    CHECK(task.has_command());

    CHECK(task.container().type() == ContainerInfo::DOCKER);

    Try<Docker::RunOptions> runOptions = Docker::RunOptions::create(
        task.container(),
        task.command(),
        containerName,
        sandboxDirectory,
        mappedDirectory,
        task.resources() + task.executor().resources(),
        cgroupsEnableCfs,
        taskEnvironment,
        None(), // No extra devices.
        defaultContainerDNS
    );

    if (runOptions.isError()) {
      // TODO(alexr): Use `protobuf::createTaskStatus()`
      // instead of manually setting fields.
      TaskStatus status;
      status.mutable_task_id()->CopyFrom(task.task_id());
      status.set_state(TASK_FAILED);
      status.set_message(
        "Failed to create docker run options: " + runOptions.error());

      driver->sendStatusUpdate(status);

      _stop();
      return;
    }

    // We're adding task and executor resources to launch docker since
    // the DockerContainerizer updates the container cgroup limits
    // directly and it expects it to be the sum of both task and
    // executor resources. This does leave to a bit of unaccounted
    // resources for running this executor, but we are assuming
    // this is just a very small amount of overcommit.
    run = docker->run(
        runOptions.get(),
        Subprocess::FD(STDOUT_FILENO),
        Subprocess::FD(STDERR_FILENO));

    run->onAny(defer(self(), &Self::reaped, lambda::_1));

    // Delay sending TASK_RUNNING status update until we receive
    // inspect output. Note that we store a future that completes
    // after the sending of the running update. This allows us to
    // ensure that the terminal update is sent after the running
    // update (see `reaped()`).
    inspect = docker->inspect(containerName, DOCKER_INSPECT_DELAY)
      .then(defer(self(), [=](const Docker::Container& container) {
        if (!killed) {
          containerPid = container.pid;

          // TODO(alexr): Use `protobuf::createTaskStatus()`
          // instead of manually setting fields.
          TaskStatus status;
          status.mutable_task_id()->CopyFrom(taskId.get());
          status.set_state(TASK_RUNNING);
          status.set_data(container.output);
          if (container.ipAddress.isSome()) {
            // TODO(karya): Deprecated -- Remove after 0.25.0 has shipped.
            Label* label = status.mutable_labels()->add_labels();
            label->set_key("Docker.NetworkSettings.IPAddress");
            label->set_value(container.ipAddress.get());

            NetworkInfo* networkInfo =
              status.mutable_container_status()->add_network_infos();

            // Copy the NetworkInfo if it is specified in the
            // ContainerInfo. A Docker container has at most one
            // NetworkInfo, which is validated in containerizer.
            if (task.container().network_infos().size() > 0) {
              networkInfo->CopyFrom(task.container().network_infos(0));
              networkInfo->clear_ip_addresses();
            }

            NetworkInfo::IPAddress* ipAddress = networkInfo->add_ip_addresses();
            ipAddress->set_ip_address(container.ipAddress.get());

            containerNetworkInfo = *networkInfo;
          }
          driver->sendStatusUpdate(status);
        }

        return Nothing();
      }));

    inspect.onFailed(defer(self(), [=](const string& failure) {
      LOG(ERROR) << "Failed to inspect container '" << containerName << "'"
                 << ": " << failure;

      // TODO(bmahler): This is fatal, try to shut down cleanly.
      // Since we don't have a container id, we can only discard
      // the run future.
    }));

    inspect.onReady(defer(self(), &Self::launchCheck, task));

    inspect.onReady(
        defer(self(), &Self::launchHealthCheck, containerName, task));
  }