Before creating the labs, the code tries
to create the NatNetwork, if it already exists
it skips, if it doesn't it creates the NatNet
using the subnet defined in the localhost.yaml as CIDR.
Test Plan:
PASS: If NatNetwork doesn't exists, it is successfully created
PASS: If NatNetwork exists with different IP for CIDR, installation
is terminated.
Story: 2005051
Task: 48920
Change-Id: I80e361e66c5a936da019aa55ff7aa26643819b6f
Signed-off-by: Daniel Caires <daniel.caires@encora.com>
132113d247