policy-opa

Open Policy Agent enforces policy-as-code by evaluating Rego rules against Kubernetes admission controls, validating configurations before deployment to prevent non-compliant cluster changes. It integrates directly into admission webhooks to block or flag policy violations.

Yes, OPA supports cross-framework policy mapping for SOC2, PCI-DSS, GDPR, and HIPAA. You can author Rego rules that evaluate cloud-native configurations against specific compliance controls, generating automated audit evidence for each framework.

You can unit test Rego policies by defining test cases alongside your rules and running the OPA evaluation command in your CI/CD pipeline. This validates policy behavior against sample configurations and catches drift before deployment.

Docker and kubectl are required for evaluating live Kubernetes configurations and running containerized OPA environments. For validating Terraform infrastructure-as-code, you primarily need OPA, jq, and yq to parse and evaluate the plan outputs.

The best way to audit Kubernetes RBAC is using OPA to evaluate role definitions against Rego policies that codify your access control requirements. This allows automated drift detection and continuous compliance auditing across cluster configurations.

OPA policy evaluation often fails when Rego rules reference incorrect data structures or when input configurations lack expected fields. Use unit tests to validate policy logic against sample configs, and ensure jq and yq correctly parse input formats.