DevOps

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(…)

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(…)

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 3

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(…)

KubeCon / CloudNativeCon 2023 – Day 2

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(…)

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(…)

Kubernetes: Extension of disk in Rook Ceph

In my previous blog, I’ve introduced the storage solution Rook Ceph for Kubernetes. We saw that in our architecture we had 3 workers dedicated for storage using Ceph file system. Each worker had 2 disks(…)

Introduction to Rook Ceph for Kubernetes

We have been doing a lot of tests around Rook Ceph lately for one of our customer and it may worth sharing what I’ve learned. If you want a quick overview on that topic before diving into the official(…)