I use NixOS by the way. And today I’m going to show you how to operate a simple Icinga setup using that operating system. I.e. a single node with checks and notifications. In contrast to Icinga Web 2 or Redis, NixOS provides an Icinga 2 package, but no module. Practically speaking, this means you can’t just write something like services.redis.enable = true; in your NixOS configuration. Instead, a complete systemd service is required as well as the user and group icinga2 the daemon default...
