I would put it differently: OpenStack is how you do IaaS with long-lived, mutable server instances ("pets"). Kubernetes is how you do IaaS with immutable, disp

I would put it differently: OpenStack is how you do IaaS with long-lived, mutable server instances ("pets"). Kubernetes is how you do IaaS with immutable, disposable application instances ("cattle"). I've used both. OpenStack is indeed complex and brittle (but if you get it working and leave it alone, it works well). I'm excited about k8s but it's too new to pass much judgement on yet.