Prevent port conflicts with load balancer

[maxmcd]

We currently return a fixed ip addr for dns queries for proxied services. If a container is every connected to two different services with the same port we won't be able to distinguish the requests, eg:

container(
    "dashboard",
     image="hashicorpnomad/counter-dashboard:v1"
     ports=[9002],
     connect_to=["counter.counter:9001", "foo.counter:9001"],
)

This is easily solvable because the ip address is synthetic, we can return any value we like.

• How should we allocate these addresses?
• What range should they be in?
• Where do we track this?