I Inherited 47,000 Lines of Terraform Spaghetti — Here's How I Untangled It Without Burning Production

The Slack Message That Ruined My Monday

"Hey, the previous platform team left. Here's the repo. Good luck 🫡"

I stared at the Git repository. 47,000 lines of Terraform. One state file. Zero modules. Variables named x, temp2, and my personal favorite — DO_NOT_TOUCH_ask_raj. Raj had left the company two years ago.

If you've been a Senior DevOps Engineer for more than a year, you've inherited something like this. Maybe not 47K lines, but you've opened a main.tf that made you question your career choices.

This isn't a "Terraform best practices" article. Those are written by people who've never had to run terraform plan on a 3,000-resource state file at 2 AM while the VP of Engineering watches.