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Benoît Entzmann

Interacting with OpenShift Local in an Azure VM

29.11.2023 by Benoît Entzmann

In my previous blog I’ve written about the no or low cost solutions to setup an OpenShift cluster to play with. I’ve detailed the installation of OpenShift Local on Azure. OpenShift Local is like a mini cluster that is(…)

Cloud

Test OpenShift 4 at low cost in Azure

28.11.2023 by Benoît Entzmann

If you want to learn and test OpenShift 4 (the last release is 4.14 at this time of writing), you may not want to go straight with the installation of a full cluster. Using the OpenShift Service of a cloud(…)

DevOps

Combining Powerful Cilium Features Together In Kubernetes

01.11.2023 by Benoît Entzmann

My colleagues and I have played with Cilium from Isovalent for a while now and we have successfully deployed it as simple CNI (Container Network Interface) along with Hubble on several production Kubernetes cluster of our customers.

DevOps

Kubernetes CoreDNS in depth

27.09.2023 by Benoît Entzmann

You know that CoreDNS is one of the core component of Kubernetes. You may also know that the CoreDNS pod is up and running only after the Container Network Interface (CNI) has been installed in your(…)

DevOps

Kubernetes – Design HorizontalPodAutoscaler using Memory & CPU

07.08.2023 by Benoît Entzmann

So, you are interested to implement autoscaling in your Kubernetes cluster. I wrote a blog on that topic last year to help you see clearly what you can configure depending on the API version of HorizontalPodAutoscaler(…)

DevOps

Kubernetes Certificates Overview and Regeneration Example

04.07.2023 by Benoît Entzmann

Kubernetes certificates is a very important subject matter as it protects the communication of the components inside your cluster. However it is not a very popular topic as it could be quite confusing and adds more complexity to an already(…)

DevOps

All about how Docker containers and data are stored on its host

30.06.2023 by Benoît Entzmann

You’ve probably already heard about containers and one of the most popular tool used to create them: Docker. You may wonder how a container stores data on its host, if those data are persistent, if you(…)

DevOps

Rook Ceph: Tips and Tricks for storage using CephFS

02.05.2023 by Benoît Entzmann

In my Rook Ceph series, I’ve given first an introduction of Rook Ceph. Then I’ve shared the procedure on how to do a disk extension. With this blog post, I’d like to(…)

DevOps

KubeCon / CloudNativeCon 2023 – Day 3

22.04.2023 by Benoît Entzmann

Today is the last day of conferences. It is unexpected but I get fitter and fitter as I walk between 4 and 5 kilometre each day from one session to another. The RAI Amsterdam Convention Centre is huge and when(…)

DevOps

KubeCon / CloudNativeCon 2023 – Day 2

20.04.2023 by Benoît Entzmann

Here we are with Arnaud Berbier, up for our second conference day! You can check my blog for Day 1 if you’ve missed it. Keynote sessions Like yesterday, we started with a bunch of Keynote sessions(…)