Building a hyperconverged Kubernetes cluster with MicroK8s and Ceph

This guide explains how to build a highly-available, hyperconverged Kubernetes cluster using MicroK8s, Ceph and MetalLB on commodity hardware or virtual machines. This could be useful for small production deployments, dev/test clusters, or a nerdy toy. Other guides are available – this one is written from a sysadmin point of view, focusing on stability and […]

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Finally – round stars!

This was my telescope’s first outing since I fixed up its mirror cell. A quick glance at a bright star in the city seemed to indicate that the problem was fixed, but there’s no way of knowing for sure without trying some proper photography. Recently the three circles in this Venn diagram have been conspiring […]

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Messier 5

Last night it was clear and there was no moon. I headed out with my telescope to see what I could see, and ended up photographing Messier 5, which is a globular cluster. This composite is made from about 100 images, each 3 seconds exposure with my Celestron NexStar 127 SLT and Canon EOS 600D, […]

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