Learn OPA-REGO with Real Code Examples

Restrict Kubernetes namespace creation to certain teams

Enforce image security policies in CI/CD pipelines

Authorize API requests based on user roles and attributes

Ensure cloud resources comply with tagging policies

Audit configuration drift and log policy violations

Validate Rego syntax with `opa fmt` and `opa check`

Test policy evaluation using `opa eval` with sample JSON input

Check decision logs for failed evaluations

Ensure input data matches expected JSON schema

Debug complex rules by breaking them into smaller policies

Test policies with `opa test` and unit test files

Evaluate policies with `opa eval` using mock input

Verify decision logs against expected outcomes

Use Gatekeeper dry-run mode in Kubernetes

Iteratively refine policies based on test results

Run OPA as a sidecar for each service

Run OPA as a centralized service queried by multiple apps

Integrate with Kubernetes Gatekeeper for admission control

Use policy bundles for distributed deployments

Enable decision logging for auditing

OPA CLI and binary

OPA Docker container image

Gatekeeper for Kubernetes admission control

OPA SDKs for Go, Python, and Java

Policy bundles for distribution

Kubernetes (via Gatekeeper)

CI/CD pipelines (Jenkins, GitHub Actions, GitLab CI)

API gateways and microservices

Cloud platforms (AWS, GCP, Azure) for resource policies

Logging and monitoring platforms (Prometheus, ELK)

Organize policies by domain and environment

Use reusable policy modules

Test policies with representative input data

Enable logging for all decisions

Automate policy deployment with bundles

Debugging complex Rego rules

Ensuring input JSON structure correctness

Optimizing performance for high-volume requests

Integrating OPA across multiple platforms

Keeping policies maintainable as systems scale