Upgrade: Juno -> Pike (or maybe later)
Hey -- I've run a number of OpenStack clouds from multiple vendors for
several years, now. But I've *never* done an upgrade. I've read some
of the docs, but they don't really make it clear (at least, the ones
I've thus-far found):
* If going from Juno to something pretty recent is even feasible
* If I have to do intermediate steps along the way
* How likely it is to "just work:" complexity, common issues, etc.
The fact that there's a clearly codified fallback procedure, while an
inherently good thing to have, does concern me some.
Any insights would be much appreciated.