track /07-dashboard-stayed-green

The Dashboard That Stayed Green

For eighty minutes 4% of charges failed while every panel stayed green: the failures were fast and they returned HTTP 200. Build the instrumentation that would have gone red — and prove it under the conditions that fooled the last one.

Intermediate ~6h fastapiprometheusgrafanadocker

Your evidence lives here

Sign in, enroll, and rehearse the failures on purpose — kill the worker, publish the duplicate, pull the queue out from under it. What you paste here is what says you did.