How to create a RHEL7 repo along side my RHEL6 repo?

Greetings!
I'm trying to find out how or what I would need to do in order to build a RHEL7 repo on our current Yum Repo Server.

Currently, we have a repo server serving up RHEL6. All of our vm's connect to it and upgrade via this repo.

I'd like to keep this RHEL6 repo and simply add a RHEL7 repo so I may do some test upgrades of snapshots to ensure things won't break during the upgrade process.

Any advice or help would be greatly appreciated.

Sincerely,
Trae