When debugging #17403, the logs of sshd indicates that Podman tried to
ssh into the machine too soon as the `core` user has not yet been fully
set up:
> error: kex_exchange_identification: Connection closed by remote host
> fatal: Access denied for user core by PAM account configuration [preauth]
@dustymabe found that the we may have to wait for systemd-user sessions
to be up. Doing that reduces the flake rate on my M2 machine but does
not entirely fix the issue.
Since I have seen multiple symptoms of flakiness, I think it does not
hurt to add the systemd-user sessions to the dependencies of the ready
service and continue investigating.
[NO NEW TESTS NEEDED] - once we have a fix out, I want to exercise
frequent stop/start in the machine tests but they won't pass now.
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
9fb2f8e100