5 CI/CD Pipeline Disasters I Caused (And How I Fixed Them)

A confession from a Senior DevOps Engineer who has broken production more times than he'd like to admit Nobody writes post-mortems about CI/CD pipelines. When a database goes down, there's a war room, a Slack channel, and a 12-page incident report. When a CI/CD pipeline silently deploys a broken build to production at 3 AM on a Saturday — nobody writes about that. I'm going to write about that. Because in five years of building deployment pipelines for enterprise teams, I've caused more production incidents through pipeline misconfigurations than through any other single category of mistake. These are my five worst pipeline disasters, exactly how they happened, and the engineering changes we made so they could never happen again. Disaster #1: The Pipeline That Deployed on Every Commit to Main The setup: We had just migrated from Jenkins to Azure DevOps. The new pipeline was beautiful — multi-stage, with build, test, and deploy stages. I was proud of it. The trigger configuration: trigg