How do I enforce policy-as-code for Monorepos vs polyrepos using OPA and Conftest?

Enforcing policy-as-code using Open Policy Agent (OPA) and Conftest can greatly streamline the process of maintaining compliance across both monorepos and polyrepos. By integrating OPA with Conftest, you can define and enforce policies that ensure your code adheres to organizational standards, security requirements, and best practices. This approach also aids in automating security checks within CI/CD pipelines.

For a monorepo, policies can be structured to enforce rules across multiple projects within a single repository. On the other hand, polyrepos require independent policies for each repository. Utilizing Conftest allows testing of these policies against your configuration files or code before deployment, making it easier to catch violations early in the CI/CD process.

Example of Policy Enforcement

package example # Define a simple policy rule to restrict usage of 'unsafe' functions deny[{"message": msg}] { input.function == "eval" msg = "Usage of 'eval' is prohibited for security reasons." } deny[{"message": msg}] { input.function == "exec" msg = "Usage of 'exec' is prohibited for security reasons." }

devops policy-as-code monorepos polyrepos Open Policy Agent OPA Conftest automation CI/CD compliance security

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