Hi all,

just wanted to give a short status on the work around the HA
architecture described in the SPEC here:
https://review.openstack.org/299628 (blueprint here [1])

The last chunk of the work is currently contained in these two reviews:
https://review.openstack.org/#/c/342650/ - cinder volume constraint move
https://review.openstack.org/#/c/314208/ - Main Tripleo Heat Templates changes

The patches are very small at this point, because after a chat with
Giulio we made sure that the initial big patches were split off in
smaller, more easily consumable bits. We also made it so that even
openstack-core is a profile that can be turned on and off. This work
still depends on the Aodh profiles [2] work landing in master. Once Aodh
is committed the change is rather trivial. Testing has been successful
so far. Given that it can be rolled back with a simple tweak to
environments/puppet-pacemaker.yaml we have a solid non-intrusive plan B,
should we encounter any unforeseen major issues.

For the long-term (so Ocata at least), we can work to remove all the
tripleo::profile::pacemaker classes that won't be needed any longer.
I think it makes sense to keep them around for at least one release.

I hope we can land these changes sometime this week or beginning of the
next (depending on how the aodh reviews go). In any case either Chris or
I will be around for any question/issues.

Thanks for reading so far ;)
Michele

[1] https://blueprints.launchpad.net/tripleo/+spec/ha-lightweight-architecture
[2] https://review.openstack.org/#/c/333556/
-- 
Michele Baldessari            <mich...@acksyn.org>
C2A5 9DA3 9961 4FFB E01B  D0BC DDD4 DCCB 7515 5C6D

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