Open Policy Agent

Open Policy Agent (OPA) is a general-purpose policy engine that decouples policy decision-making from application logic. It allows organizations to define and enforce policies consistently across various components of their software stack, including applications, microservices, Kubernetes, CI/CD pipelines, API gateways, and more. OPA uses a high-level declarative language called Rego, designed for speed and efficiency, to evaluate policies against structured data (JSON, YAML, etc.) and return decisions. OPA is designed for platform teams, security teams, and developers who need to manage and enforce authorization, admission control, data filtering, and other policy-related decisions in a centralized and auditable manner. By externalizing policy, OPA improves developer productivity, enhances security posture, and simplifies compliance efforts. It provides comprehensive audit trails for every policy decision, enabling analysis, debugging, and meeting regulatory requirements. As a Cloud Native Computing Foundation (CNCF) Graduated project, OPA is built for modern cloud-native environments. It offers SDKs and a REST API for direct application integration, native integration with tools like Envoy, and robust capabilities for Kubernetes admission control and even generative AI endpoint access management.