[tools] refactoring of salt states and pillars for GRE workers openqaworker8 and openqaworker9
The code for GRE tunnels inside salt states and pillars repos will probably need some refactoring.
The original code came by following MRs:
comment from coolo:
13:00:38 - coolo: having salt states looking at the hostname is pretty much asking for later refactoring though