public function containersStart($container = NULL) {
    $this->validateConfig();
    $this->title('Starting containers');
    $command = $this->taskDockerComposeUp();

    if ($container) {
      $this->limitComposeContainer($command, $container);
    }

    $command->file($this->dockerComposeFile)
      ->projectName($this->config->get('name'))
      ->detachedMode()
      ->run();
  }