[rdo-users] Update Openstack Ussuri and CentOS 8

[Benjamin Zapiec]

Hello *,

due to CentOS 8 being EOL to the end of this year I did some
investigation on how to properly update and Openstack environment
running CentOS 8 and Openstack Ussuri.

If you just want to update the operation system it seems like
there is no problem at all. Just do a

 > dnf switch stream
and
 > dnf distro-sync

Since openstack has proven its complexity i can't imagine that
it is that simple if you are running an openstack environment
on it :D

Any chance to update to CentOS stream without breaking the environment?

If not I don't see any restrictions in updating both, the openstack 
version and the operating system version. But may you tell me if there
is an migration path to successfully update from CentOS 8 to CentOS
stream?

Do i have to update CentOS before updating Openstack or wise versa?
Do you have any information on how to update?

If this was already discussed please send me a link.
I found the following on the internet:
http://lists.openstack.org/pipermail/openstack-discuss/2021-February/020651.html

That was already useful but didn't answered my questions entirely.


Best regards

-- 
Benjamin Zapiec <benjamin.zapiec at gonicus.de> (System Engineer)
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