We should make sure that podman remains functional across glibc updates.

If we use UBI images, we should end up with a reliable container repository, so there shouldn't be many failures related to infrastructure issues.

Testing across all UBI

For each update on 8/9/10 we should test all supported UBI.

podman run --rm ubi9:latest python3 -c 'import threading; thr = threading.Thread(None, lambda: None); thr.start(); thr.join'

Run it for ubi8, ubi9, ubi10 (once available).

UBI update testing

For the UBI version that matches the glibc version under test, copy the RPMs into a container and try to upgrade the container images using dnf update *.rpm. Then run the above python3 command in the container. Also run dnf clean expire-cache followed by dnf update -y. Neither should error.