Generalize kubernetes interaction away from minikube

[FrankPetrilli]

This one is rather minor, but the metricsLink is currently hardcoded against the minikube environment. I found it helpful with my minimal RAM-equipped development machine to be able to deploy against a real Kubernetes cluster in my datacenter. My changes work, but aren't super clean. I'd like to work through this and make it more usable to deploy to a real kube cluster.