From Pi to Cluster: A Tale of Clusters and Chaos

Abstract

Admittedly, everyone working with Kubernetes has thought about it at some point: Building their own cluster with their own hardware. But let’s face it, most people stop at the thought, right?

Now, imagine mixing a career changer with a few months of Kubernetes know-how and three Raspberry Pis gifted for their birthday. What could possibly go wrong? (Spoiler: A lot ;))

In my talk, I’ll walk you through the ups and downs of my Raspberry Pi cluster adventure - from initial setup struggles over hacking my way through networking quirks to the sweet moment when „kubectl get nodes“ actually works (eventually).

If you’ve ever thought, “Hey, I should totally build my own cluster,” or if you’re just curious to see what happens when someone actually does, join me. You’ll probably laugh, maybe cry, and definitely learn something. :)

Slides

Slides can be found here .

Presented at

  • techcamp Hamburg, 2025
  • code.talks Hamburg, 2025
  • DevOpsCon Munich, 2025

Recording of the talk at code.talks 2025