I've looked into this but it seems the following error was actually caused by the latest release of gabbi(2.5.0).
 TypeError: __init__() got an unexpected keyword argument 'server_hostname'

I've reported that issue to gabbi in [1] but if my observation is correct the problem should be
fixed in urllib3 which gabbi is dependent on.
 [1] https://github.com/cdent/gabbi/issues/309

On Tue, Jan 18, 2022 at 2:34 AM Martin Kopec <mkopec@redhat.com> wrote:
Hello,

most of the tests of heat-tempest-plugin have started failing. We noticed that in interop [1], however, we reproduced that in the project's gates as well [2].

I suspect it might be an issue with the new gabbi package - there has been an update recently.
Could you please have a look.

[1] https://review.opendev.org/c/openinfra/ansible-role-refstack-client/+/824832
[2] https://review.opendev.org/c/openstack/heat-tempest-plugin/+/823794

Thank you,
--
Martin Kopec
Senior Software Quality Engineer
Red Hat EMEA