Some details about how Kubernetes Ingress Controller works

Liejun Tao
5 min readMay 22, 2019

In this article I write down my steps to understand how the network traffic from Internet is passed through Ingress Controller.

I’ve been using Traefik as Ingress Controller in my Kubernetes cluster for a while. Thanks to the helpful articles here, and here, explaining the setup.

When I’m trying to get a understanding about how it works, this is a great article, especially this diagram.

A simplified diagram of my setup is like below:

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