I have two patches out for haproxy needed to Bullseye support and tech debt reduction, https://gerrit.wikimedia.org/r/c/operations/puppet/+/708105 and https://gerrit.wikimedia.org/r/c/operations/puppet/+/708108 respectively.
The hosts running haproxy module are:
- dbproxy[2001-2003].codfw.wmnet T287574#7248065
- dbproxy[1012-1021].eqiad.wmnet T287574#7248065
I know how to do thumbor hosts and will do myself, though I need help with the other hosts. The patches will restart haproxy (restart is going to be fast but not hitless from client's POV I think) and I'm assuming we'd need to do some coordinated rollout.
Note this is not urgent but we should do it, I'm not the haproxy owner/maintainer but I needed it on Bullseye, hence the patches, thanks!