Comment 6 for bug 1997202

I have proposed a test patch to configure NetworkManager to not overwrite resolv.conf, /etc/resolv.conf is not overwritten after that during the job run.[2]

But we face the same DNS issue during the container image build.[3]

[1] https://review.opendev.org/c/openstack/tripleo-ci/+/865290/6/playbooks/tripleo-ci/test.yml#16

[2] https://storage.gra.cloud.ovh.net/v1/AUTH_dcaab5e32b234d56b626f72581e3644c/zuul_opendev_logs_e4d/865290/6/check/tripleo-ci-centos-9-content-provider/e4d0b10/logs/undercloud/etc/resolv.conf

~~~
nameserver 127.0.0.1
~~~

[3] https://storage.gra.cloud.ovh.net/v1/AUTH_dcaab5e32b234d56b626f72581e3644c/zuul_opendev_logs_e4d/865290/6/check/tripleo-ci-centos-9-content-provider/e4d0b10/logs/container-builds/0b349a4b-84f3-48f5-bd5a-b02eca881b57/base/os/horizon/horizon-build.log

~~~
[MIRROR] openstack-dashboard-23.1.0-0.20221107095346.c319118.el9.noarch.rpm: Curl error (28): Timeout was reached for http://mirror.mtl01.iweb.opendev.org:8080/rdo/centos9-master/component/ui/d8/5b/d85b61155590d61edbdc326dcd0e070c15f86fcb_6b89ae7d/openstack-dashboard-23.1.0-0.20221107095346.c319118.el9.noarch.rpm [Resolving timed out after 30000 milliseconds]
[FAILED] python-oslo-concurrency-lang-5.0.1-0.20220913081342.01cf2ff.el9.noarch.rpm: No more mirrors to try - All mirrors were already tried without success

The downloaded packages were saved in cache until the next successful transaction.
You can remove cached packages by executing 'dnf clean packages'.
Error: Error downloading packages:
  python-oslo-concurrency-lang-5.0.1-0.20220913081342.01cf2ff.el9.noarch: Cannot download, all mirrors were already tried without success
~~~