I’m a Platform Engineer at a small Bavarian company.
This blog is my space to share what I learn while building and running infrastructure.
You’ll find posts about Kubernetes, observability, and automating the boring stuff.
Writing helps me think and maybe some of it helps you too.
Intro When setting up Prometheus observability for Kubernetes, I kept running into the same question again and again: What metrics are actually available and where do they come from? This post is my attempt to document all default and optional metric sources in a Kubernetes cluster, grouped by system layer. Additionally, I want to provide a brief overview of each metric type that an endpoint exposes. Core Components Recap Before diving into metrics, here’s a quick reminder of some key Kubernetes components that either generate or expose metrics: ...