1.  Clone this repo down to your master (in /tmp is fine) and upload it to your own internal git server
2.  Edit configure_r10k.pp so that the server parameter is set to your interal git server and repo name  
3.  On your Master, run `puppet apply configure_r10k.pp`
  - This will install r10k and point it at the repo we setup in step 1
4.  You can remove configure_r10k.pp from the repo now.