We have a job  [1]that started to fail since June 25th and we see that all tempest tests get 401 unauthorized error when they try to run. Further look discovered many keystone exceptions [2]. You can see slack discussion related to this issues here [3]

[1] 
 https://sf.hosted.upshift.rdu2.redhat.com/zuul/t/tripleo-ci-internal/buildset/1fb65022cdd64ea28ae762ef2655d324
 
 
[2] https://sf.hosted.upshift.rdu2.redhat.com/logs/openstack-component-cloudops/code.engineering.redhat.com/tripleo-ci/master/component-cloudops-edpm-rhel9-rhoso18.0-crc-autoscaling-tempest/108a8e0/controller/ci-framework-data/logs/openstack-k8s-operators-openstack-must-gather/namespaces/openstack/pods/keystone-5c74d98c5-jxtm7/logs/keystone-api.log

[3]https://redhat-internal.slack.com/archives/C06SCNF3RFD/p1719824223711499[2]