Shift Left Enterprise-Scale at Cloudflare

Cloudflare describes “shifting left” as bringing security and validation earlier in the development process by embedding testing, security audits, and compliance checks into the CI/CD pipeline so issues are caught before deployment, reducing risk and human error. To manage hundreds of internal production accounts consistently and securely, they moved from manual dashboard changes to managing configurations as Infrastructure as Code using Terraform, a custom CI/CD setup, and a centralized monorepo, with peer review and automated policy enforcement built in. They define security baselines and policies in code with Open Policy Agent, enforce them at merge request time, and handle exceptions through formal requests. Along the way they faced challenges such as onboarding legacy manual configurations, managing drift between code and deployed state, and keeping tools in sync with Cloudflare’s evolving APIs, but found that proactive automation improves both security and engineering velocity.

https://blog.cloudflare.com/shift-left-enterprise-scale

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