Updated
over 6 years
ago.
8 hacker ♥️.
Idea is to prepare some advanced template examples for Heat orchestration in OpenStack, which will show: - how HA for VM guests can be used - how auto-scaling works
This following presentation from last OpenStack summit is explaining all problems with that: https://www.openstack.org/assets/presentation-media/ATLOpenStackSummit.HighAvailability.pdf https://www.youtube.com/watch?v=mdFOuwUg6js
Repository where the project is developed:
https://github.com/mjura/heat-templates/blob/hackweek/cfn/SLES11/SingleVMHA.template
This project is part of:
Hack Week 11
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Uyuni read-only replica by cbosdonnat
Description
For now, there is no possible HA setup for Uyuni. The idea is to explore setting up a read-only shadow instance of an Uyuni and make it as useful as possible.
Possible things to look at:
- live sync of the database, probably using the WAL. Some of the tables may have to be skipped or some features disabled on the RO instance (taskomatic, PXT sessions…)
- Can we use a load balancer that routes read-only queries to either instance and the other to the RW one? For example, packages or PXE data can be served by both, the API GET requests too. The rest would be RW.
Goals
- Prepare a document explaining how to do it.
- PR with the needed code changes to support it