Extending the Kubernetes API: What the Docs Don't Tell You

At the heart of Kubernetes is its API. Whilst on the surface it may appear relatively simple to use, under the hood is a beast of complex conversions, codecs and generators. In this talk, I’ll show you how the Kubernetes maintainers have created their own tooling to make this process easy when contributing to core, and how you can use this to build your own custom controllers, operators and API servers. I’ll then demonstrate this technique with a pager extension to Kubernetes.