Author Archives: erik

The Nvidia device plugin on Debian 12

After the debacle with Rocky linux and Red Hat, I decided to move to a more future proof setup with my kubernetes cluster fully running on Debian. I chose Debian 12 at the time but unfortunately Nvidia did not yet … Continue reading

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Creating a bootable UEFI USB linux boot stick

Upgrade for centos/rocky linux to new major versions is not supported. If you look for it there are procedures, but the changes between major versions can be so siginificant that this is not a good idea. Therefore, an approach I … Continue reading

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Converting a non-HA kubeadm kubernetes setup to HA

When I setup my kubernetes cluster using kubeadm some years ago, I decided to use a simple non-HA setup of kubernetes, because (1) it simplifies the setup and (2) the cluster will be running on a single server anyway. In … Continue reading

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Monitoring etcd backups

As part of a previous post, I described how I am running etcd in memory. This setup requires that regular backups are taken of etcd and this must be monitore.

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Chat GPT sure knows a lot about kubernetes

Chat GPT sure knows a thing or two about kubernetes. Here is the output when I asked it to produce a rhyme about kubernetes (with one minor edit): In the world of tech, there’s a tool so great It’s called … Continue reading

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Using argocd with k3d to manage another k3d cluster

I am experimenting currently with argocd with the aim to have an (almost) fully automated bootstrapping of my kubernetes cluster at home. One of the first things to do when experimenting is to have a test environment. There are different … Continue reading

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Running kubernetes etcd in-memory

After setting up my kubernetes cluster at home back in June 2021, one of the first things I noticed was a lot more noise from the server. Apparently, it was just a lot of disk IO coming from kubernetes and … Continue reading

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Fixing sound on the ASUS N7601ZM

I got a new laptop last week for work and needed to get it ready. Now new laptops usually mean new hardware and that can spell problems if you are installing linux. This is because the latest hardware may be … Continue reading

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Monitoring logs on k8s with loki and grafana

This post describes how to monitor logs in kubernetes with grafana and loki. This covers the use case of logging for troubleshooting purposes. That is, it allows analysing human readable logs coming from multiple systems in one aggregated log. Human … Continue reading

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A note on migrating an old Jira install to Jira cloud

One part of the migration of my old setup to kubernetes is the migration of an old Jira 6.1 instance. Unfortunately, running that same jira instance in a container did not work because of licensing issues, and apparently it is … Continue reading

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