Upgrading Kubernetes Nodes without disruptions
Upgrading your kubernetes cluster is a process not to be taken lightly. In this article we will shine a light on a recent outage we experienced while doing so and what we have learned from this.…
Kubernetes workshop at EV-Box
EVBox is a producers of electric vehicle charging stations and has these come bundled with a managed software solution. Given the fact that the Philips Hue cloud is somewhat alike (hardware + cloud offering) they reached out to us to share our knowledge during a workshop.…
Building your own horizontal pod autoscaler for Kubernetes
The current version of Kubernetes (1.3) is quite packed with features to have your containerized application run smoothly in production. Some features are still a bit minimal viable product like the scaling options of the horizontal pod autoscaler (HPA). Currently you are only able to scale based on CPU…
Kubernetes ReadinessProbe should be mandatory
For my current customer i'm in the process of migrating their application from Google App Engine Flexible (former Managed VMs) toward Kubernetes running on GKE. During extensive tests I concluded that although pod readinessProbes are optional, they should in fact be mandatory when having a Service connected. What is a…