From Monthly Meltdowns to Daily Deploys: Taming Legacy ColdFusion with Feature Flags
Every ColdFusion developer has been there: you’re tasked with updating a legacy codebase where a single change in a CFC might unexpectedly break a scheduled task or a reporting module miles away. The result? “Deployment Anxiety” and a release calendar that moves at a snail’s pace.
In this session, I will share our team’s journey of breaking free from the “Big Bang” release cycle using Feature Flags. We will walk through the evolution of our strategy—starting with a simple, homegrown CFML database toggle and eventually scaling to a sophisticated implementation using Unleash.
Key takeaways from this session include:
- The “Safety Net” Strategy: How to wrap high-risk code in flags to ensure you can “kill” a failing feature in milliseconds without a rollback.
- Testing in Production: Why the best staging environment is actually production (if you have the right toggles in place).
- The Homegrown vs. Pro Debate: A look at our migration from a custom FeatureService.cfc to an enterprise flag management platform.
- Gradual Rollouts: How to release a new module to 5% of your users to monitor performance before a global launch.
- Practical CFML Examples: See code snippets of how to implement flag checks within your logic and how to handle “flag debt” so your code stays clean.
Whether you are maintaining a 15-year-old legacy app or building a modern CFML API, you’ll leave this session with a roadmap to release faster, safer, and with significantly less stress.
Guust Nieuwenhuis
