Thanks for taking a look.
I've tried again to deploy an hyperconverged engine node on freshly installed hosts.
Unfortunately it seems to be the very same issue again.
I can't tell what's going wrong here. It looks a bit like
this:
https://bugzilla.redhat.com/show_bug.cgi?id=1507438
This relates to /tmp but as far as I can see the initial engine VM resides in /var/tmp
before it's supposed to be deployed to storage. I'm not sure what Ansible checks
exactly (when waiting for the engine to come up) but the temporary entry in /etc/hosts (on
the host) is present, I can ping and ssh into the engine VM through the bridge and from
engine back to the host.