Saving Cloud Costs with Kubernetes on AWS
How to save cloud costs when running Kubernetes? There is no silver bullet, but this blog post describes a few tools to help you manage resources and reduce cloud spending.
Using OBS Studio with V4L2 for Google Meet
Many people are now working remote ("WFH"). How to make the best out of video calls with Google Hangouts Meet? This blog post describes how to use OBS Studio with a virtual camera device (video loopback) on Linux to add effects and scenes for Google Meet video calls.
One Decade in Zalando Tech
One decade. 10 years. In one company. Or did I actually work in four companies? This blog post is the long planned successor to my 2013 post My three year journey into Zalando Technology.
Electing a Works Council in Germany
Zalando SE is getting a works council (Betriebsrat). This blog post describes what I learned about the election process.
My Python Project Setup
I have 8+ Python Open Source projects on github.com and on codeberg.org. This post describes my current set of tools and practices I use for maintaining them.
Production Checklist for Web Apps on Kubernetes
Running applications in production can be tricky. This post proposes an opinionated checklist for going to production with a web service (i.e. application exposing HTTP API) on Kubernetes.
My Favorite F-Droid Apps
I try to use Open Source Android apps whereever I can. F-Droid is a community-maintained software repository which contains only free software apps. This posts describes my favorite F-Droid apps.
How Zalando manages 140+ Kubernetes Clusters
Recently I was asked "how do you manage that many Kubernetes clusters?". This post tries to provide some insights on how we manage 140+ Kubernetes clusters on AWS at Zalando.
Liveness Probes are Dangerous
Kubernetes livenessProbe can be dangerous. I recommend to avoid them unless you have a clear use case and understand the consequences. This post looks at both Liveness and Readiness Probes and describes some "DOs" and "DON'Ts"
K3s, Traefik, Let's Encrypt, and Local Path
The story on how I messed up my K3s demo site with Traefik as Ingress controller and Let's Encrypt rate limits — or: how to configure K3s with local-path volumes.