What would be the easiest way to create an inverted hostalive

Icinga 2
1

I want to be notified when some machines are up, and that state to be considered the error state, essentially I would like !hostalive.

What is the easiest way to do this?

2

you could write a bash wrapper for check_ping that inverts the exitcode
if exitcode != 0 => exit 0
else exit 1

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