Changes in python packaging tooling mean that the wsgi_scripts
functionality via PBR may not longer function.
This patch switches Designate from using the PBR wsgi_scripts method to
using a new wsgi module that provides the same behavior as the generated
wsgi scripts provided.
A related devstack patch enables devstack to setup uWSGI to use the new
module path instead of the generated wsgi scripts.
This also aligns Designate to a new proposed OpenStack goal[1].
[1] https://review.opendev.org/c/openstack/governance/+/902807
In order to make the CI work, this patch was merged with:
zuul: Drop centos9 and make grenade non-voting
The requirements repo has dropped upper-constraints for python3.9, so
the centos9-based jobs are no longer working on master, let's drop them.
Also the grenade jobs are broken due to the referenced bug, make them
temporarily non-voting, so that we can merge the fix[0] on master first,
backport it, and then re-enable them.
[0] https://review.opendev.org/c/openstack/designate/+/902846
Related-Bug: 2109577
Depends-On: https://review.opendev.org/c/openstack/devstack/+/902758
Change-Id: If90056ae1de4a6a3557fc870497e6233088bfb02
e6d83dfcf7