"A key advantage of using OPA is its ability to decouple policy decisions from the business logic in your services. With OPA, the engine determines the outcome of a policy, while your application takes responsibility for enforcing it. This separation makes it possible to manage all policies in a single location, instead of having to update business logic across multiple systems-systems that may be written in different languages and maintained by different teams."
"Regogo is the specialized language used by OPA to define policies. It is a declarative language built for inspecting and manipulating structured data, such as JSON and YAML, which are commonly used to express access rules in cloud environments. Inspired by Datalogg, Rego extends its capabilities to handle structured document formats like JSON and YAML. While some developers find it challenging to learn, it remains the primary language for OPA users."
Open Policy Agent (OPA) provides a centralized policy engine for enforcing rules across cloud infrastructures. OPA accepts requests as JSON or YAML objects and evaluates them against policies and data to produce an approve or deny determination. Applications receive the decision and are responsible for enforcing it. OPA separates policy logic from business logic, enabling policy management in one location rather than across multiple systems and languages. Rego is the declarative language used to write OPA policies and to inspect and transform structured data like JSON and YAML. Rego builds on Datalog concepts and remains the primary language for OPA.
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