Open Stack

I am planning to upgrade my Openstack Pike. Please could I ask some
questions about this so I understand better how to proceed?

*Background*:
- I have Openstack Pike running on 3 nodes (2 x compute and 1 x
controller). Storage is provided by a Cinder driver and separate vendor
storage array (iSCSI).

- I have a bug which is impacting Cinder in Pike which is not present in
Queens/Stein.

- Since I installed Openstack some years ago, I was not able to
update/patch it for a number of reasons.

- The Openstack which I installed was from the tripleo.org website and I
followed the instructions there.

- I have configured LBaaS that was available in Pike by making config
changes to .conf files.

-  I recall reading a few months ago when I started looking into this that
I need to update to the latest within the current version (Pike) first,
before updating beyond Pike so I am planning for that.


*Questions*:
1. do I first need to deconfigure / remove the LBaaS before attempting an
upgrade beyond Pike?
2. The tripleo website is a little confusing. I am running Pike and it is
not containerised. The upgrade info on tripleo.org mentions upgrades to
Pike in a containerised environment. So should I follow the detail for the
"Ocata and earlier" release in this case? ref:
http://tripleo.org/upgrade/minor_update.html#updating-your-overcloud-ocata-and-earlier
3. Do I need to upgrade to each release? ie from Pike > Queens then Queens
> Stein etc ? Or can I do this:
a) update Pike to the latest in the current Pike release
b) Update Pike to Train


*What I've gathered so far:*
- If I can execute the 'openstack overcloud update' and limit it to the
controller node then I can apply this to a cloned environment consisting of
1 x undercloud "director" and 1 x controller but I am unable to stage this
for the compute nodes because they are physical bare-metal

- the tripleo website guide lists the latest as 'Rocky' but I could see
Stein in the yum search. I think I can follow the tripleo guide with a
pinch of salt and replace *rocky* with *stein*



Thank you


*Tony Pearce*   |
*Senior Network Engineer / Infrastructure Lead**Cinglevue International
<https://www.cinglevue.com>*

Email: tony.pearce at cinglevue.com
Web: http://www.cinglevue.com

*Australia*
1 Walsh Loop, Joondalup, WA 6027 Australia.

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