Convert to hiera variables

Change-Id: I65dcab3e5619468b3a7000e19e9c8e1070fff14c
Typo

Change-Id: Ia1e8da9cfc65960b00f96d020202d34693c1f189
Change hash variable

Change-Id: I016323c8063fbf0567deb18e787a966528c60884
Updated docs for variables

Change-Id: I4d9c49d1b2b51c4c2e303493d7ca478557c5e459