One of the possible ways to expose k8s services on a bare metal deployments is
using External IPs. Each node runs a kube-proxy process which programs iptables
rules to trap requests to External IPs and redirect them to the correct backends.
So, in order to access k8s service from the outside, we just need to route public
traffic to one of the k8s worker nodes which have kube-proxy running and thus
have all the needed iptables rules for External IPs configured.
External IP Controller is a k8s application which is deployed on top of k8s cluster and which configures External IPs on k8s worker node(s) to provide IP connectivity.
Install dependencies and prepare kubernetes dind cluster. It is supposed that Go v.1.7.x has been installed already.
make get-deps
Build necessary images and run tests.
make test
Use make help to see all the options available.