That's true for projects that are currently built on top of the Symfony Standard Edition. However, with Symfony Flex this will change and routes can be provided through recipes. That's why I am going to close here.

@xabbuh: Perfect, thank you.

Edit:
I just realized it's possible to do that without custom loaders - you can use wildcards in routing resource imports like so:

bundle_routes:
    resource: "../../src/*/Configuration/routing.yml"

@xabbuh @kiler129 Hi, does this work in symfony 4? I'm starting to use symfony and I ended up with the same question about how to dynamically load routes.

@lucascdsilva Have a look at https://github.com/rollerworks/RouteAutowiringBundle 👍

@sstok tanks, I will look

I find it incredible that this does not exist, and the bundle cannot be completely isolated and does not depend on the global configuration, and I don't like the idea of creating a recipe to write in the global system configuration. 🔥

thanks @sstok

Finally I have used the solution the @kiler129, thanks