Hello Everyone!
Masakari had 3 2-hour sessions and we managed to discuss a broad range of proposals and assign tasks to interested parties. (And this was my first time chairing a PTG as PTL). Thank you, everyone who participated!
Here is a summary of the PTG discussions. The whole discussion has been written down in the etherpad. [1]
We acknowledged that the project has lost its momentum during the last cycle (Victoria) and we hope to restore it now. To this end, we are reviving interesting old blueprints and specs. Some of these are already at the implementation stage, ready for reviews.
Some of the discussed proposals fall into the 'low code impact, high (positive) usability impact' category, the most prominent being ways to have more flexibility in disabling/enabling the HA scope as well as generally more friendly approach towards user errors (not evacuating 'pinned' instances).
On the other hand, some proposals involve deeper architectural changes to Masakari, such as the shift from reliance on Pacemaker/Corosync stack to Consul and/or etcd (possibly also for coordination), as well as making Masakari inspect the host status via both inbound and outbound means (including power management for checks and fencing). To this end, we plan to investigate a possible integration with Ironic as our gate to the baremetal world.
Another proposal worth noting is the Masakari 'restore previous state' workflow, meant to help operators move instances back to their original location once the local problem is solved.
Yet another proposal is increasing the resilience under the current scope (Pacemaker/Corosync) by retrying host checks (several sampled observations rather than one) and implementing adaptive rules to consider large-scale failures.
We also discussed general maintenance tasks. We decided to give some love to the documentation and make sure it's not self-contradictory and also in agreement with the actual code, as well as include general recommendation on how Masakari is supposed to be deployed to have it work optimally.
Finally, we discussed a few miscellaneous proposals such as making Masakari a better container world citizen by removing the reliance on systemd.
[1] https://etherpad.opendev.org/p/masakari-wallaby-vptg
Kind regards,
-yoctozepto