A bit of context

On june 26th 2018, I was lucky to be invited by the DDD Paris team among a bunch of DDD stars like Mathias Verraes, Yves Reynhout and Eric Evans, the author of the Design Driven Design book himself. All the conferences were great and the discussion panel at the end is insightful around DDD and our job as a developer. I highly recommend to take time to go see them (videos here), it’s only 20 min and the french presentation like mine are subtitled in english !

In my presentation, I talked about “Guerrilla DDD”. This term came from a…


Or what we would have liked to know before we started

This is the final part of our series of articles about our migration from monolith to microservices. Read the first and second articles before.

Fourth axis : Production

We have reached the fourth and final axis of maturity: production. It’s the one that will offer you the most challenge in your transition from a monolithic architecture to microservices, especially if you burn the stages.

Observability

In our transition to microservices, we started by deploying our applications on two existing instances (virtual machine) to ensure some resilience. However, the idea of a microservice architecture is…


Or what we would have liked to know before we started

This is the second part of our series of articles about our migration from monolith to microservices. Read the first article before.

Second axis : Continuous Delivery

Continuous Integration

Now, you want to deliver many applications continually and quickly. It is therefore necessary to have a robust Continuous Integration system. Of course we imagine that you already have an instance of a CI tool, randomly Jenkins. This single body, which is quite reasonable for some applications, will quickly become a burden for microservices. First of all, the frequency of builds is greatly multiplied by the number…


Or what we would have liked to know before we started

You will understand this quote from Martin Folwer at the end of this series of article

This article has been co-written with colleague David Panza when we were working on one of the two platform developed in an international investment bank.

The goal is to give you a feedback on our transition from two “monolithic” applications to microservices architecture by focusing on what we would have liked to know before we started.

Leaving the monolith.

Before starting, a bit of context, the story is quite classic in fact, two applications, started more than 10 years ago and managed in the same department, have aged badly. Maintenance and evolution…


Bonjour à tous,

Déjà un grand merci à CARBON IT qui m’a offert cette place ainsi que 16 (!!) de mes collègues. Vous pouvez d’ailleurs lire le super retour d’Erwan.

Dans ce retour, je vous propose de vous faire un résumé de mes 3 jours de cette 7ème édition de Devoxx 2018. Pourquoi “mes” 3 jours ? Parce que la conférence est tout simplement devenu énorme depuis son arrivée au palais des congrès, plus de 200 conférences, presque 3000 participants par jour … autant dire que chacun va vivre sa propre expérience. …


The idea of this article came to me after spending one day with Jean François Zobrist, the director who has liberated the FAVI foundry in France, and listening to Dave Snowden at ScrumDay France.

Street fight is messy and chaotic.

First I have to talk of a russian martial art and self defense system called Systema. I have discovered Systema five years ago, and even if I am a late comer to any art martial arts and even sport, I became a fan.

Systema doesn’t follow the classic Shu Ha Ri long phases of many martial arts. You don’t have to follow the ordered steps:

yannick grenzinger

Software gardener since 1999. Coach Craft & Flow @benextcompany Continuous learner passionate about Software, product, UX & psychology.

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