Balazs Gibizer 3b8257cd23 Add upgrade check about old computes
Report a warning during upgrade checks if there are computes older than
the previous major nova release in the system.

So if code is upgraded to Wallaby and the upgrade check was run before
the restart of the services with W code then the check warns for Ussuri
computes in the system.

Change-Id: I873b0c1e6e695ae88241bbf75ac9f80ecc6f5664
2020-11-04 15:43:09 +01:00
..
2019-12-23 14:20:28 +00:00