> How are metrics helpful? There is so much fun that could be had in setting up an actually resilient system instead.
Metrics are the means to an end of alerting. And with alerting, I mean getting pinged on my phone when something important breaks. Like, you know, the server going down.
> Why worry over metrics and alerts when you could orchestrate an infrastructure that grants you the superpower of being able to spin up a server with a copy of the world on a whim instead (or even a system that auto-starts one whenever there is demand)?
As somebody who has run cloud and enterprise software for almost two decades now, I can be that needs monitoring too. The more moving parts there are, the more things go wrong. The more things go wrong, and the more you care they get fixed, the more monitoring you need :-)