Often, we want to configure context-based routing for our Kubernetes cluster. Kubernetes offers us various ways to do so. The preferred and most scalable way at this time is to use an IngressController for this job. The following diagram tries to illustrate how this ingress controller works:
In this diagram, we can see how context-based (or layer 7) routing works when using an ingress controller, such as Nginx. Here, we have a deployment of an application service called web. All the pods of this application service have a label app=web. We then have a Kubernetes service called web that provides a stable endpoint to those pods. The service has a (virtual) IP of 52.14.0.13 and exposes port 30044. That is, if a request comes to any node of the Kubernetes cluster for the name web and port 30044...
