From Scripts to a Self-Healing MySQL Platform: The Evolution of Our MySQL Automation Infrastructure

In 2019, I shared the early stages of our home‑grown MySQL automation platform — Metronome. Since then, it has evolved into a mature, production‑grade control plane that manages our entire MySQL fleet based on Virtual machines with minimal human intervention. In this updated talk, I’ll walk through how Metronome works today, how the architecture has changed, and what we learned operating it at scale. This session dives into the technical design decisions, operational patterns, the automation workflows that replaced manual DBA tasks, the challenges we faced along the way, and the lessons learned from running a self‑built MySQL control plane in production for several years. You’ll leave with insights into when it makes sense to build vs. buy, how to architect resilient database automation, and what we would do differently if we were starting today.