Autonomous hardware diagnostics and recovery at scale

This post introduces 'Phoenix,' an autonomous diagnostics and recovery automation system for Cloudflare's global hardware infrastructure. Phoenix automates the detection, diagnosis, and re-provisioning of broken servers, significantly reducing manual effort and improving operational efficiency. It includes out-of-band connectivity checks, integrated node acceptance tests (INAT), and an 'Error Budget' concept to balance automation with empathy for potential recurring hardware failures.