I am using nagios forever for my homeserver/homelab.
Now that I started using HA a year ago I am using this more and more as a central place for status & notifications.
I’d be amazing to combine them somehow.
But I cannt and do not want to replicate my 100+ services from nagios in HA.
Ideally there would be some sort of nagios integration that shows host/service status on a HA dashboard and possibly allows simple interactions (acknowledging stuff, rechecking etc).
Surprisingly I did not find any.
From there, everything is possible to display Nagios states but to interact with Nagios from HA, it needs something else. It is surely possible to do it by adding an API plugin to Nagios and drive it from HA.