techblog d2si

Outil open source permettant de construire, modifier et versionner une infrastructure de façon fiable et automatisée, Terraform est pour nous un outil de prédilection pour faire de l'Infra as Code. La communauté Terraform est très active, et nous y contribuons également. De nombreux providers Terraform sont déjà disponibles, mais comment...

The Terraform Open Source community is very active, and has produced over the years a wide variety of providers. But what happens when you have a specific use case for which there are no existing provider yet? This article will illustrate how to create your very own Terraform provider. Terraform is a plugin-based software written in G...

Utiliser Docker en production demande une compréhension profonde de la technologie, et d'être capable de debugger des problèmes complexes, d'analyser des comportements inattendus ou de résoudre des dégradations de performance. C'est pourquoi nous avons essayé de comprendre au mieux les différents composants techniques utilisés par Docker...

Introduction In part 1 of this blog post we have seen how Docker creates a dedicated namespace for the overlay and connect the containers to this namespace. In part 2 we have looked in details at how Docker uses VXLAN to tunnel traffic between the hosts in the overlay. In this third post, we will see how we can create our own overlay ...

Introduction In part 1 of this blog post we have seen how Docker creates a dedicated namespace for the overlay and connect the containers to this namespace. We have also seen that the overlay communication between Docker hosts uses VXLAN. In this second post, we will look at VXLAN in more details and how Docker uses it. What is VXL...

Introduction AtD2SI, we have been using Docker since its very beginning and have been helping many projects go into production. We believe that going into production requires a strong understanding of the technology to be able to debug complex issues, analyze unexpected behaviors or troubleshoot performance degradations. That is why w...