On 21.01.2020 10:16, Tony Pearce wrote:
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
http://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*:
- 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 http://tripleo.org mentions upgrades to Pike in a containerised
You should use official TripleO documentation [0]
[0] https://docs.openstack.org/tripleo-docs/latest/upgrade/developer/upgrades/ma...
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-a... 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
You have to do it one by one, interleaving the two steps: upgrading undercloud [1] firstly, then the overcloud. There is FFU (fast-forward upgrade) [2] but AFAIK it is only expected to work when going from Newton to Queens. Upgrading by N+3 from Pike to Stein would involve upgrading OS major version on hosts, so that guide wouldn't fit it.
FFU from Queens to Train is under developed.
[1] https://docs.openstack.org/project-deploy-guide/tripleo-docs/latest/post_dep... [2] https://docs.openstack.org/tripleo-docs/latest/upgrade/developer/upgrades/fa...
*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@cinglevue.com mailto:tony.pearce@cinglevue.com Web: http://www.cinglevue.com http://www.cinglevue.com/**
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