Archi & Techno

Tl;dr Every time I stumble upon a Git article on the web, it always talks about how to use it, instead of why I should use it. Wait, isn’t that obvious? We use Git for versioning our code and sharing it with others. This is what Version Control Software (VCS) is used for, afterall.  Thinking like this, it is easy to believe that you can Google your way through Git mastery by searching how-to’s every time you’re stuck on a specific Git-related problem. At least…

Introduction - scope of the article This series of articles deals with caching in the context of HTTP. When properly done, caching can increase the performance of your application by an order of magnitude. On the contrary, when overlooked or completely ignored, it can lead to some very unwanted side effects caused by misbehaving proxy servers that, in the absence of clear caching instructions, decide to cache anyway and serve stale resources. In the first part of this series, we argued that caching is the…

Material Components is the (not so) new library made by the Material team to replace the old support design library. It provides components to apply Material Design in your application with ease. Among these components, you can find the famous FloatingActionButton, the CardView or the BottomSheet. But there are also some less known, nonetheless powerful, components. And one of them is the MaterialShapeDrawable.

Lire la BD en français Hello ! Deploying a new release to production is more complex than simply checking that the app's code functions correctly. We must also make sure that it will run correctly on the existing production servers, and with the production environment's infrastructure. And in order to do this, the Ops leave nothing to chance...!

Lire la BD en français Hello ! We previously saw (here) that any device connected to a network has an IP address. There are, however, two different types of IP addresses : private IPs and public IPs !

Lire l'article en français   Hello ! It is great to have a functional website - but it's even better if people have access to it ! And in order to contact a server, we use IP addresses.  

With the emergence of Infrastructure As Code, (Ansible, Puppet, Heat or Terraform), we’d like to take advantage of all the good practices brought by the Software Craftsmanship movement in order to guarantee our infrastructure’s code quality. Every professional developer knows that to ensure code quality you need tests. One of the resulting practice is TDD aka Test Driven Development. As a reminder, TDD consists in: begin by creating a test; verifying it’s failing; writing the code necessary to make the test succeed; relaunching the test…

Nowadays many companies or teams use Slack to communicate and share content. Slack is very flexible and opens up possibilities to developers, as it provides webhooks (incoming, outgoing), bots, and event subscriptions. Your Slack reflects the way that you work. In our company (Octo Australia), we play a lot with Slack webhooks to facilitate our office management (for example to check if someone is at the office, open the building door ...) or to create fun tools and notifications (please water the plants, a connected…

This year, the Service Meshs are of all conferences: istio, linkerd, kubeflix, even zuul?... In a first article, we positioned the Service Mesh and its stakes in the ecosystem of microservices. We will now propose a radiography of these. Our definition of Service Mesh is as follows: The Service Mesh refers to a platform responsible for ensuring the security, routing and traceability of communications between microservice applications deployed dynamically in containers. Different solutions have emerged to meet these needs: At the infrastructure level, container orchestration…

Making your app accessible is making sure that people with disabilities can use your app without any extra help from another person : you wouldn’t want to be forced to ask for help every time you use an app, do you ? Despite being an obscure topic, most articles I read about accessibility tend to follow a common pattern : they enumerate technical solutions focusing on “how” to use them. For each solution, a brief description of “what” problems people with disabilities may encounter is…