Monitoring a cluster of Raspberry Pi with Nagios

In this post, I’ll describe how I’ve set up the monitoring of my micro-cluster of Raspberry Pi with Nagios.

Training program

For the last 3 years, I’ve been working as a technical team leader for IBM Client Innovation Center.

Update your Nikon DSLR firmware on Ubuntu

I’ve just invested in a new DSLR, a Nikon D750. One of the first things I do after unboxing it, is to update its firmware to the latest version, to have the latest functionalities and fixes.

Ubuntu (and other Linux distributions) is, as often, forgotten by these major manufacturers, who only provide Windows and Mac OS solutions.

OVH awesome database backups

Yesterday, I made a huge mistake while testing a new version of my RSS syndication application: I ran the installation script, which has the effect of (re)creating all the tables used by the application.

Moving a PHP project to Composer

A few months ago, I’ve discovered Composer, which is a dependency manager for PHP (you can compare it to Maven, for Java). With Composer, you can simply checkout the main project, and install the dependencies.

The transition to a Composer project is very easy, so I decided to start using Composer in my ComicsCalendar project. In this post, I’ll explain how you can migrate to Composer for a very simple project (in this case, using PropelORM to access your databases).