We already have an internal load-balancing system, provided by kube-proxy, and the real advantage of something like GLB (#336) is that it can scale horizontally, but we don't actually need horizontal scaling of our load balancing at this point.

So really we just need to be able to bind a public IP address on the subnet and forward it to a kube-proxy endpoint. And that would get us everything we currently need. We should set up something simple and wait until later to actually set up a full load balancer.