Zudro

Документация

class TaskController
{
    /**
     * @var ProducerInterface
     */
    private $producer;

    public function __construct(ProducerInterface $producer)
    {
        $this->producer = $producer;
    }

    public function indexAction($name)
    {
        $this->producer->publish('test');

        return new Response();
    }
}

# services.yaml
services:
    App\Controller\TaskController:
        arguments:
            - '@old_sound_rabbit_mq.task_producer'

либо (если producer только одни)

# services.yaml
services:
    OldSound\RabbitMqBundle\RabbitMq\ProducerInterface: '@old_sound_rabbit_mq.task_producer'

и понадеяться на autowire
Еще может пригодится: Local service binding