Policy as Code revolutionizes platform engineering by automating the enforcement of policies through code, allowing for more consistent and efficient management of infrastructure and compliance. This approach enhances collaboration between teams, reduces human error, and increases the agility of development processes. By integrating policies directly into the software development lifecycle, organizations can achieve better governance and streamline operations.

Implementing guardrails in cloud infrastructure is essential to prevent security vulnerabilities, unexpected costs, and compliance issues. The article explains how Open Policy Agent (OPA) can be integrated with Terraform to enforce policies as code, ensuring consistent governance and security for cloud resources. It provides practical policy examples and steps for integrating OPA into Terraform workflows.