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…

Knowledge is a goldmine for companies. It comes in different shapes and forms: mainly documents (presentation slides and documentation) that allow businesses to share information with their customers and staff. The way companies harness this knowledge is central to their ability to develop their business successfully. One of the common ways to ease the access to this document base is to use search engines based on textual data. At OCTO, we have decided to use optical character recognition (OCR) solutions to extract this data, since…

We have already presented Hashicorp Vault on this blog, how it is working in PKI mode (FR), its integration with AWS (FR) and with Kubernetes (FR). This time we will focus on another Vault goodness: how to use Vault to manage your SSH accesses in your infrastructure.To do that, we are going to use in the article the SSH Secret Engine provided by Vault..

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 really unwanted side effects caused by misbehaving proxy servers that, in the absence of clear caching instructions, decide to cache anyway and serve stale resources. Before we get to the tactical details of how caching works, it helps…

Lire l'article en français I have noticed that containers are increasingly popular, and that the IT community nowadays is particularly enthusiastic about Docker. Colleagues keep trying to convince me that containers will make my daily tasks quicker and simpler. But how?

Documented in 2005 by Alistair Cockburn, Hexagonal Architecture is a software architecture that has many advantages and has seen renewed interest since 2015. The original intent of Hexagonal Architecture is: Allow an application to equally be driven by users, programs, automated test or batch scripts, and to be developed and tested in isolation from its eventual run-time devices and databases. To explore the benefits of piloting an application by automated tests, or developing and testing in isolation from the database, we recommend that you read…