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Route discovery service (RDS)

docs/root/configuration/http/http_conn_man/rds.rst

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.. _config_http_conn_man_rds:

Route discovery service (RDS)

The route discovery service (RDS) API is an optional API that Envoy will call to dynamically fetch :ref:route configurations <envoy_v3_api_msg_config.route.v3.RouteConfiguration>. A route configuration includes both HTTP header modifications, virtual hosts, and the individual route entries contained within each virtual host. Each :ref:HTTP connection manager filter <config_http_conn_man> can independently fetch its own route configuration via the API. Optionally, the :ref:virtual host discovery service <config_http_conn_man_vhds> can be used to fetch virtual hosts separately from the route configuration.

  • :ref:v3 API reference <v3_grpc_streaming_endpoints>

Statistics

RDS has a :ref:statistics <subscription_statistics> tree rooted at http.<stat_prefix>.rds.<route_config_name>.. Any : character in the route_config_name name gets replaced with _ in the stats tree.