Concepts

Mental model for how Portal evaluates rules across admission, audit, and network layers.

• Architecture — layer model and component diagram.
• Admission vs audit — synchronous denial vs informer-driven review.
• Cross-resource lookups — referencing related objects from a rule.
• Context and pod sugar — the evaluation context and pod-specific shortcuts.
• Actions and rate limiting — what happens after a match, and the rate-limit semantics.
• Fail-closed — what Portal does when the engine itself is unhealthy.