Chapter 21: Advanced Traffic Routing with Ingress

This last chapter will give an overview of advanced traffic routing in Kubernetes using Ingress resources. In short, Ingress can be used to expose your Pods running behind a Service object to the external world using HTTP and HTTPS routes. We have already discussed ways to expose your application using Service objects directly, especially the LoadBalancer Service. But this approach works fine only in cloud environments where you have cloud-controller-manager running and byconfiguring external load balancers to be used with this type of Service. And what is more, each LoadBalancer Service requires a separate instance of the cloud load balancer, which brings additional costs and maintenance overhead. We are going to introduce Ingress and Ingress Controller, which can be used in any type of environment to provide routing and load-balancing capabilities for your application. You will also learn how to use the nginx web server as Ingress...