DRL - Distributed Rate Limiter

DRL is a high-performance, horizontally scalable rate-limiting service that eliminates external-database round-trips by keeping all enforcement state in-process, distributed via a self-organising peer-to-peer gossip mesh.

It supports two deployment models:

• Envoy / gRPC ext_authz — the primary model; DRL runs as a sidecar and Envoy calls ShouldRateLimit over localhost:8081.
• Embedded reverse proxy — DRL itself handles ingress: TLS termination, OIDC JWT validation, rate-limiting, and upstream forwarding in a single binary.

Website: https://drl.gchiesa.dev | Github: https://github.com/gchiesa/drl