We have a check/gate blocker impacting all CentOS-9 jobs. Details are in:

https://bugs.launchpad.net/tripleo/+bug/2018265  - CentOS-9 stream mirrors are returning Status code: 404.

Per https://review.opendev.org/868392 - the Rackspace mirrors are being used to sync CentOS-9 repos - so possibly there is a lag/roll back there.

We will post out once there is a fix/workaround or if the situation gets unblocked dueto an update.

Thank you.