Kubernetes – create a configuration backup with kubectl
This article intends to explain how to create a configuration backup of an helm installed application via kubectl. The best way to install an application in Kubernetes is helm. So …
Kubernetes Quickie: Extract the Ca-Bundle
Today I came across a new little problem: Configuring a MutatingWebhookConfiguration for Nginx ingress controller. The example looks like this: See that caBundle thing? The value needed here has to …
Migrating my cloud to Kubernetes – storage – the final decision SSHFS
Anyone following my quest to migrate to Kubernetes has been reading about the thoughts and problems encountered about dealing with a cost-effective and valid storage back-end. I ended up simply …
Migrating my cloud to Kubernetes – Part III about storage facilities
Since a while I am on a quest to move my legacy cloud to Kubernetes and posted about this already here, here and here. So far I can say that …
Kubeternetes CNI Flannel on dual-homed nodes
During my quest to move to Kubernetes I seem to run into one issue after the next. Since I was unable to get Calico to work at all due to …
converting openSSL x509 into Kubernetes secrets
Serving an application in Kubernetes via https requires an openssl key and secret, so you can prove that the application can be trusted and the trafiic through the internet can …
Migrating my cloud to Kubernetes – Part II about storage facilities
A few days ago I had posted part 1 of my quest to move my cloud to Kubernetes. Now the next parts need to be done, namely choosing the right …
Migrating my cloud to Kubernetes – Part 1: storage facility
Earlier today I wrote an introduction to my new blog series about migrating to Kubernetes. This is the next installment, we’ll be talking about setting up a Kubernetes storage facility …
Migrating my private cloud to Kubernetes – Introduction
Are you interested in migrating to Kubernetes? Well, I am let me tell ya’ll about it. I have been around in IT since more than 25 years, in different areas, …
Kubernetes: How to resolve external DNS within a pod
Sometimes we need to be able to resolve external ip addresses from within a pod. Let’s say you run something like WordPress, Nextcloud etc. within Kubernetes, and you want to …