The pre and post phases are
desirable to see both in logs and consoles.
Unfortunately, anaconda cheaps out by using communicate(), which means
the logs are unwritten until the end.
Change by using bash's redirectiors
to create a dynamically updated logfile
and tail -f that.
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
