We are retrofitting an existing K3D Cluster installation with Istio to use its Canary deployment capability. What could go wrong? This article expands on a series of articles where we introduced quite a few technologies to a local K3D cluster to have an environment for experimentation. …

Getting Nginx running in a cluster is a quite common task, but it was not yet done in this series of articles about a K3D cluster with a tiny NodeJS application and a lot of instrumentation around it. …

It’s easy to add some Kubernetes lifecycle management to a NodeJS/Express application. Let’s do it in practice. This article discusses the health endpoints /readyz and /livez as part of a series of articles around a complete local K3D cluster installation. …

This article adds the Keda Autoscaler to a complete K3D Kubernetes environment for you to run your own experiments. It comes with a Grafana dashboard to show how autoscaling is doing its thing in real-time. This series of articles covers a K3D based Kubernetes setup with a lot of instrumentation…

Resource management for CPU and memory in Kubernetes seems to be dark magic — everyone wants it, there is a lot of uncertainty, and no simple recipe. This article provides tools to get a handle on the topic. A series of previous articles describe a growing K3D Kubernetes environment featuring…

WSL on Windows 10 and 11 lets you develop Docker-based applications such as K3D without dedicating a Linux machine to it. It works surprisingly well, give it a try. My series of articles about Kubernetes always included this line: “The setup was tested Ubuntu 21.04”, implying that you should go…

This iteration of our local Kubernetes learning environment makes the move to the cloud for one component, Grafana. Previously, we described a mostly local system that includes a very small custom NodeJS application with a lot of instrumentation around it. The setup includes Prometheus, Alertmanager, Grafana, Fluentbit, InfluxDB, and some…

This article is a follow-up to previous articles, this time adding logging capability to the K3D-based Kubernetes cluster. The aim of this setup is to provide a simple local setup for your own experiments, e.g. create dashboards or checkout configuration options. As before, we have a quite simple NodeJS application…

This article covers an extension to an earlier article about setting up a K3D Kubernetes development environment with Grafana, Prometheus, and Alertmanager. We enable metrics for ingress-nginx and show a way to have all the Grafana Dashboards use your timezone. The aim of the article is to give you a…