ChaosMonkey

Chaos Monkey is a chaos engineering tool invented in 2011 by Netflix to test the resilience of its IT infrastructure.[13] It works by intentionally disabling computers in Netflix's production network to test how the remaining systems respond to the outage. Chaos Monkey is now part of a larger suite of tools called the Simian Army designed to simulate and test responses to various system failures and edge cases. https://en.m.wikipedia.org/wiki/Chaos_engineering#Chaos_Monkey