Data Tier Architecture Modernization - Phase 1: Rethinking Legacy Orchestration

Phase 1 of modernizing a legacy application configuration orchestration system - the scripts and automation that provision databases, apply configuration, and run SQL changes across environments. The old system was a sprawl of individually-named scripts, each handling a slightly different variant of similar work. Hard to maintain, hard to onboard onto, impossible to add consistent error handling or monitoring. Often hard to understand.

Rewrote it around a small set of reusable, well-defined action types instead: configuration action (routing sensitive and non-sensitive config to the appropriate configuration store), database-creation action (with input validation), SQL-script-execution action (runs scripts with clear parameters), and a general-purpose command action for anything else.