First add this bundle to your composer dependencies:
composer require boekkooi/amqp-bundle`
Then register it in your AppKernel.php.
class AppKernel extends Kernel
{
public function registerBundles()
{
$bundles = array(
new League\Tactician\Bundle\TacticianBundle(),
new Boekkooi\Bundle\AMQP\BoekkooiAMQPBundle(),
// ...
That's it!
Now we can continue to configure the bundle.