Kubernetes Custom Resources as Your Platform API

This time we have a new talk by Sönke Sothmann

What if platform teams could offer self-service infrastructure without exposing implementation details?

In this talk, we explore how Kubernetes Custom Resources serve as a truly declarative platform API, enabling teams to declare intent rather than manage configuration.

Using Crossplane Compositions as a transformation engine, we show how high-level declarations are turned into infrastructure resources through a two-stage process — including fully declarative multi-tenant onboarding. No imperative glue code, no event-driven reconciliation, no cognitive overload. Just declare, commit, deploy. We share real-world patterns and lessons learned.