Best practice in EC2 project tree

[Tzach Livyatan]

I have a project which includes setting up 5 different servers on EC2, each with 2-3 roles.

So far, I created 3 file for each server:

• X-provisioning, which create the EC2 instance using module: ec2
  
• X-prepare, which apply the relevant roles for the server
  
• X-setup, which includes the two types above
  

With more servers type, the project root dir is becoming crowded.

Is there a way to move the above files to a (new?) role?

In particular should, the X-provisioning be in a role?

What is a good practice for such project structure?

Thanks

Tzach