8.3 implemented networkmanager to manage the install time
networking, but didn't correctly generate infiniband
network manager configuration.
Workaround by checking for infiniband install, and
then checking if the configuration is wrong, and
adding an infiniband section if missing.
In 8.3, they refactored how network configuration is
managed early in install. Fix by detecting the presence
of the nm-lib and calling it's function again to
re-read the new cmdline.
We want to have each iteration try not much.
But we also want to have a 'good' (primary network) match
supersede a less successful guess.
But we also want to keep guessing.
So the first 'vague' guess gets to run full hook.
If a future good guess happens, rerun the hook to update the data.
After going through tmp and etc, settle on /etc/confluent/
as the generally relevant directory when possible.
Additionally, move apikey and ifidx logic into apiclient where
possible
Use a more neutral name for the deployment server target.
It is still ipv4 only for the moment, but easier to pull in
ipv6 support when not having to change paths that don't care.
