Operations | Monitoring | ITSM | DevOps | Cloud

This article explains how to integrate metrics from Prometheus into Icinga checks using the check_prometheus plugin. There can be multiple reasons why this could be desired: Maybe you have different teams with their own monitoring systems, and you need to bridge the gap, or you want to perform queries that are just better expressed in Prometheus than in plain Icinga check plugins. The latter can be the case if you want to aggregate data from multiple sources or you want to take historic data into account.

If you want to get started with Icinga but don’t have a data center lying around, no worries. Icinga is a lightweight monitoring tool that works for both large infrastructures and small home labs. When I first explored Icinga during my first year as an apprentice, it was also my first real contact with monitoring tools. After completing the Icinga Fundamentals training, I wanted to experiment with hosts and services, but what should I monitor?