I am new to netflix cloud concepts and AWS and kubernetes and trying to associate the concepts of various technologies and how they relate in terms of each other.
I understand that Netflix ribbon is an IPC library and there is no such thing in Kubernetes. You might be interested in gRPC as the part of CNCF.
In Kubernetes is a registration support for configurable private DNS zones (often called stub domains) and external upstream DNS nameservers. The DNS pod is exposed as a Kubernetes Service with a static IP.
kubectl command line tool provides command line interface to create ConfigMap for Kubernetes.
For integrating plans Netflix OSP Tools and Kubernetes take a look at: kubeflix.
That software components are made for integration Netflix Open Source Platform Tools with Kubernetes and provides: Kubernetes Instance Discovery for Turbine and Ribbon and also management for configuration and images for Turbine Server and Hystix Dashboard.