[Nut-upsuser] NUT and ESXi hypervisors (for example)

[Harlan Stenn]

I've got a client who lives in an area where there are now frequent 
power outages that last for several hours at a time.

(US Pacific northwest, where due to the extreme risks of wildfire the 
power company has disabled their "automatic failover", so if an area 
sees a fault they dispatch teams to inspect the situation before turning 
power back on.  On the one hand, "this sucks flaming red bugs".  On the 
other hand, wildfires can be horrific.)

These power outages take their toll on the UPS batteries, so we're 
contemplating running upsd to monitor the power, and if a power outage 
has gone on for, say, more than 5 minutes we'd like to tell at least 
they hypervisors to shut down, and then probably shut down the UPSes as 
well.  This would, of course, require the UPSes and the hypervisors to 
power up again once power has been restored.

I'm looking for somebody to get this working.

Suggestions and/or recommendations?

Thanks...

H