Many clusters block direct requests from internal resources to the nodes
external IPs as best practice. All accesses from internal resources that
want to access resources running on nodes go through load balancers,
nodes being on private or public subnets. Let's prefer internal IPs
first, so the tests can work even when there are security group rules
present blocking requests to the external IPs.
We should not require ExternalIP for Conformance, but should keep
testing ExternalIPs in sig network.
Signed-off-by: Rafael Fonseca <r4f4rfs@gmail.com>
f98aa32c5a