Comment 0 for bug 1983817

At [1][2][3][4] you can see the latest buildsets for all periodic integration lines - multiple jobs are failing with status RETRY. The logs show an error during infra mirror setup e.g. from [5] like:

 2022-08-07 17:14:47.486138 | primary | CentOS Stream 9 - BaseOS 0.0 B/s | 0 B 01:38
 2022-08-07 17:14:47.486217 | primary | Errors during downloading metadata for repository 'baseos':
 2022-08-07 17:14:47.486274 | primary | - Curl error (6): Couldn't resolve host name for http://mirror.regionone.vexxhost-nodepool-tripleo.rdoproject.org/centos-stream/9-stream/BaseOS/x86_64/os/repodata/repomd.xml [Could not resolve host: mirror.regionone.vexxhost-nodepool-tripleo.rdoproject.org]
 2022-08-07 17:14:47.486327 | primary | Error: Failed to download metadata for repo 'baseos': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried

Logs show this happened yesterday [5] and continue this morning (eg [1]). This blocks c9/master, c9/wallaby, c8/wallaby, and c8/train lines.

[1] https://review.rdoproject.org/zuul/buildset/73812fd92e0f42978a461fd1cb890697
[2] https://review.rdoproject.org/zuul/buildset/1f2562fd8610489cb06d52171ed4db89
[3] https://review.rdoproject.org/zuul/buildset/3834920ebc7749009ef77b6bbe3c4f8a
[4] https://review.rdoproject.org/zuul/buildset/bab36687352542d79a767437171197dd
[5] https://logserver.rdoproject.org/openstack-periodic-integration-main/opendev.org/openstack/tripleo-ci/master/periodic-tripleo-ci-centos-9-scenario002-standalone-master/6642351/job-output.txt