Hi all. So a local OS yum repo mirror for OS builds and updates. Could this work as a strategy...
Have my current "release" repo called 6-release, or 7-release... which is a clone of the latest DVD content at this point in time... /6.7/os/x86_64/
Periodically bring down updated packages from /6.7/updates/x86_64/ and sync them into my 6-release directory.
When a new version is released eg 6.8, bring down the DVD copy of that from /6.8/os/x86_64/
Then when I'm ready, copy over the latest packages from my 6.8 copy into my release repo (or re-point a symlink) and run yum update on all my VMs (through Puppet).