Skills

OPENFERO EVOLUTION: BUILDING THE FOUNDATION FOR COMMUNITY-DRIVEN SELF-HEALING FRAMEWORK

Photo by Helena Lopes on Unsplash Hi guys, in late 2022, I shared the story of my hobby project “OpenFero: The journey to a self-healing platform”. What started as a personal project to extend Kubernetes’ self-healing capabilities has evolved significantly over the past two and a half years. Today, I’m excited to provide an update on OpenFero’s journey and highlight some of the exciting new features and developments.

WHY KUBERNETES NEEDS SO MANY IPS

Photo by Shubham Dhage on UnsplashForeword Foreword Why can the networks of a GKE/Kubernetes cluster become so “big”? This article answers this very question. As the name suggests, the Google Kubernetes Engine is based on the open source project Kubernetes. Kubernetes requires 4–5 networks in each installation variant as a basis for further calculations, which Kubernetes or, more precisely, the container network interface provider (CNI) can/may use.

WHEN A SELF-SERVICE PORTAL IS NOT ENOUGH

Photo by Emanuel Ekström on Unsplash temporary namespace manager (tenama) Today’s article is about another service that I was able to develop and open-source during my work as a platform engineer. With the following anecdote, I would also like to lay the foundation for my current “story” of why we developed tenama. What happenend so far In the environment I work in, we build our on-premise Kubernetes clusters very heavily based on open source products. In recent years, it has been important to us to source our components as directly as possible from the open source community and thus have the opportunity to give direct feedback to the community and also to be able to deliver the occasional bug fix.

RESOURCE MANAGEMENT IN KUBERNETES

Photo by Growtika on Unsplash Foreword In the following chapter we will discuss the topics CPU requests, CPU limits, memory requests and memory limits. We will try to go into details here only so far as to build an understanding of the foundation of Kubernetes Resources Management. For those who are interested in the topic and want to learn more, I recommend the official documentation https://kubernetes.io/docs/tasks/configure-pod-container/assign-cpu-resource/.

THE JOURNEY TO A SELF-HEALING PLATFORM

Photo by Austin Kehmeier on Unsplash Hi guys, my first story is about my hobby project “OpenFero”. Open Fero is a little play on words from the Latin “opem fero”, which means “to help” and the term “OpenSource”. Hence the name “openfero”. The scope of OpenFero is a framework for self-healing in a cloud-native environment. Beginning of the journey In my ongoing time as a Kubernetes Platform Engineer, I’ve always wondered, “Isn’t there a solution to take the self-healing principle of Kubernetes further?” Kubernetes itself already offers some self-healing features but often only for the application and services running on top of it.