How to Use Open Policy Agent (OPA) with Terraform [Examples]

Open Policy Agent (OPA) is a popular open-source policy engine that allows users to define, manage, and enforce policies across different parts of the stack. It uses a declarative language called Rego for expressing policies concisely. OPA can be used in various scenarios such as cloud security and compliance, enforcing data access control policies, and authorization for Kubernetes, containers, and service mesh. The integration with Terraform allows users to validate infrastructure configurations before deployment and ensure consistency across the infrastructure. Spacelift provides a Terraform provider for managing OPA policies within an account, making it easier to maintain security, compliance, and operational excellence at scale.