Nagios and derivatives are a hassle in modern infrastructure. There are no good APIs (add/remove/modify hosts or services sanely). The configuration files are

Nagios and derivatives are a hassle in modern infrastructure. There are no good APIs (add/remove/modify hosts or services sanely). The configuration files are not easy to templatize, and hard to understand even if you are able to programatically generate them. They are even more clunky in a dynamic environment like AWS. Check_mk is the sanest Nagios improvement add-on I've seen: http://mathias-kettner.com/check_mk.html http://mathias-kettner.com/check_mk.html And that has its own issues.