Docker, what is it, exactly? Let’s place ourselves at the level of an application. Its lifecycle is composed of 3 major steps: Development Tests Production In these different environments, and in an ideal world, the application should behave in exactly the same way. Why would there be …

First, what is the cloud? The cloud is cool. At least that’s what seems to be the case so much everyone sees it as an evolution. It’s not rare for me to meet recruiters who triumphantly announce that such or such company has decided to move its activities to the cloud. My first question, …

Some time ago, I was discussing with a developer friend who is bored at work. He confided that he had been working on the same things for years and was fed up. He had been thinking about leaving the company he was in for several years. Why do you stay? I asked him. He replied that the salary …

What is an unikernel? Have you ever heard of Unikernels? Their name comes from the “kernel”, the “core” of the operating system. The kernel is in summary what makes the link between the computer, this object made of plastic and metal, you who use it, and the applications that …

I’ve often been asked why I’ve never taken a certification. Was it for lack of time, for lack of knowledge of products I worked with? Was I afraid to take the plunge? None of that, to tell the truth. What does certification bring? When I was a systems and network admin, I asked myself …