Infrastructure et opérations

When operating a product or building an infrastructure, it is normal to ask yourself the question "Is my application working well?" In general, it is common to have two answers in these kind of cases:  Use monitoring to check if the application is working properly. Set up an alerting system to be aware of possible problems in the system However, we rarely wonder if alarms are relevant in my specific context (ex: when a container restarts) or if the metrics on my pre-made dashboards will…

Tl;dr In my experience, software developers’ skills regarding tasks in a terminal range from desperately slow to impressively swift. I believe that, for a large part, this is caused by an abundance of articles not discussing the real problems software developers are dealing with daily. Namely, how to feel productive on a terminal, after using omnipotent integrated software environments for so long. This article aims at bridging this gap by sharing carefully selected tips that can, in my opinion, dramatically increase the terminal productivity of…

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…

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..