Python in production engineering

This post details the extensive use of Python in Meta's production engineering for infrastructure management, platform services, and service configuration. It highlights Python's role in managing hardware lifecycle, network switch setup (TORconfig, FBOSS), core services (Kobold), auto-remediation (FBAR), maintenance scheduling (Dapper), server imaging (Cyborg), and fault detection (machinechecker). It also covers platform services like Job Engine, fbpkg, FBTFTP, and Osmosis, and configuration management using Configerator and Tupperware. The post quantifies Python's usage (21% of infrastructure codebase, millions of lines of code) and notes the increasing adoption of Python 3.