Guillaume's Blog – Page 2 – Opinions are my own

Operators on Kubernetes

Kubernetes seem so prominent these days and with them a term I could hear often: “Operator”. Having no clue I decided to investigate it and after a few questions dropped on my favorite A.I. I could still not wrap my head around it.

Took the matter in my own hands and built my own Kubernetes cluster using Oracle OKE, deployed it with the “quick deploy” option that does for you the networking and some extra ground work which I admit is convenient, but after all, my research is about operators and not cloud infrastructure.

KVM, virtual bridge and APIs

Been exploring KVM on Debian12 recently on my lab machines and I wanted to run a few API tests also, and so to get it to work I had to have my VMs on the same subnet as my physical machines first which is a setup I never did before.

Kubernetes

I had exposure to Kubernetes and it seems to be an important when we talk about distributed systems and high performance computing, and I wanted to get a hand on this as I was not familiar with it. In terms of virtualisation technologies I did not go further than virtual machines so this is frankly new for me.

Pass your CCNA first try

I recently passed my CCNA, this was the most challenging certification so far and it did require more work compared to other courses I have followed until now.

Networking

Another area coming up in a recurrent fashion is networking, and regardless of the technology you are working on there will be a continuous requirement of knowledge on this area. I had to go through most of the basics with Virtual cloud networks, subnetworks, IP addresses, firewalls, Access Control Lists, and so forth. These cloud platform certifications do a good job at getting you up to speed and cutting through what matters the most.

All over again

It has been four months since I have started my technical journey once again and I have decided to focus my attention on the key cloud platforms of today. My first remark is that regardless of the tech I play with or certification I follow, I would have to go through some UNIX commands and CLI and to try to figure out some obnoxious file ownership, firewall or environment variables – and without knowing about these there are no chance you will do anything.

Going back to presales

Seven years since I left my presales role to become a sales person. Recently started to think back at it and agree that it was a fantastic adventure – I had the opportunity to learn more than I would have never imagined be possible, got struck by a few life lessons, met incredibly talented people, failed dramatically, competed ferociously, made life long friends and scored nice wins along the way. I can say without any doubt that this experience changed my life for the better and for ever.