DevOps

Kubernetes – Design HorizontalPodAutoscaler using Memory & CPU

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(…)

Kubernetes Certificates Overview and Regeneration Example

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(…)

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

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(…)

Deploy awx-operator with Helm using images from a local registry

You want to deploy Ansible AWX on a Kubernetes cluster using awx-operator, but your security policy requires you to use a local registry to store the necessary container images ? Okay, let’s see how(…)

Kubernetes Community Days 2023 in Zürich

I attended for the first time the KCD (Kubernetes Community Days) in Zürich with my colleagues Jean-Philippe and Arjen. I can say I was pretty eager to know more about topics around Kubernetes and eBPF stuff as Isovalent(…)

Kubernetes Community Days landed in Zürich

Today at dbi services, with my colleague Chay Te and Arjen Lankkamp, we attended to the KCD in Zurich. First occurrence of the Kubernetes Community Days organized in Switzerland, the KCD Zurich hosted 250 participants. The previous day was(…)

AWX log keeper.

The aim of this project is to use Ansible role to export AWX logs on disk, on daily basis, to have an easy access for debug and investigation.

Rook Ceph: Tips and Tricks for storage using CephFS

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(…)

KubeCon / CloudNativeCon 2023 – Day 1

Day 0 warm up! We arrived yesterday with my colleague Arnaud Berbier in Amsterdam for the KubeCon / CloudNativeCon but also the first CiliumCon 2023. All those events are grouped together. Thank you dbi services for this very great(…)

Specify hosts in ansible-playbook command line

Introduction Playbook are a key element of Ansible. You specify which roles and tasks will run on your hosts and groups.Each play of the playbook must have its parameter hosts set. Here is a quick example of(…)