Symfony2 conditional load configuration

Question

I just started with Symfony2, so I'm still a very noob.

I need to load a configuration file (yml) based on either a request uri or a specific route.

eg

/{dynamicroute}

should load dynamicroute.yml

and

/{anotherdynamicroute}

should load anotherdynamicroute.yml

(hope this makes sense)

UPDATE

I basically want this:

We have one backend system that all our customers can enter. From there, they can set up facebook applications. I use FOSFacebookBundle so that users can connect to facebook. FOSFacebookBundle requires facebook settings to be set in config.yml, but since we have several facebook applications running on the same system, I cannot set facebook settings in config.yml.

, , . , , :

// src\Acme\MyBundle\Controller\DemoController.php
/**
 * @Route("/client/{client_id}")
 */
public function indexAction($client_id)
{
    // load client specific data

, , yml facebook , facebook FOSFacebookBundle