Rego

Rego is Open Policy Agent’s native query language that inspects the data published by services and users. Its creation was influenced by Datalog, a declarative logic programming query language used for deductive databases. Rego goes well beyond Datalog to support structured document models. Its queries help define policies identify data violations. Rego can be a steep learning curve for users.

Some benefits of Rego are:

• Simplistic reading and writing of policies.
• Powerful support of referenced nested documents.
• Queries that accurate and unambiguous.
• Declarative

Best Practices

Best practices tips for Rego are:

• Rules are evaluated as logical AND statements.
• The order of rule statements does not matter.
• “true” and defined are usually synonymous. “false” is also usually synonymous with undefined.
• Rule evaluation short-circuits on reaching a statement that evaluates to undefined.

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