Valentin Rothberg 26b5b1dd3c unbreak CI: useradd not found ...

The fedora minimal 39 image has been updated on the fedora registry and
removed the `useradd` binary.  Since we were pulling by tag and not by
digest, updates to images outside of our control always entail a certain
risk - and now it bit us.

To fix it, try to move as many users of `useradd` to _our_ CITEST_IMAGE
and migrate the code where necessary to this Alpine-based tooling.
However, the Alpine-based `adduser` binary (not useradd!) doesn't work
well when being executed as a non-root user and will just error out.
Hence, move the fedora minimal image back to version 34 which is still
including the `useradd` binary.

Ultimately, all images on public registries should be pulled via digest
to make sure we pin them down.  I refrain from doing this now to make
sure we can cherry-pick this PR to older branches and get things back
into a working state ASAP.

Fixes: #20119
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>

2023-09-25 11:48:35 +02:00

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