Monitoring your infrastructure, one of the pillars of DevOps … and Agile … with Nagios

Having a solution of Continuous Integration and Continuous Delivery is very good. It’s even a prerequisite for an Agile team. But we must ensure that it is operational and that people are alerted in case of problems. It is precisely this role that Nagios fulfills.

We can classify the monitoring tools into two categories: black boxes (like Nagios), which simply check that services answer to the pings or that there is enough disk space, and white boxes (like Prometheus), which do more…