Technically speaking, if one wanted to update a RHEL or CentOS server using yum, but only up to a certain release date (i.e. don't install any updates released after X date), would it be possible and if so, how?
So far, the only way I can think of is to use a dedicated satellite server or a local repository and simply not sync it after a certain date, but this is not what I'm looking for.
The reason I'm asking is that we have a central (shared) satellite server that serves multiple customers, and one of the customers asked to keep all of its servers (including new servers being built) to the same update level until they are ready to move up. Without a new dedicated satellite created only for this customer (which we wouldn't not sync after X date), the only way I can think of would be if we could prevent servers (including freshly built ones) from updating past a certain release date.
I've searched around and couldn't find anything (such as a yum option or plugin that does this) that would indicate it's even possible, but in case I just didn't search for the right thing, I'm asking you.
Please let me know if the question is unclear.