syntax = "proto3";

package envoy.service.discovery.v2;

option java_outer_classname = "RtdsProto";
option java_multiple_files = true;
option java_package = "io.envoyproxy.envoy.service.discovery.v2";
option java_generic_services = true;

import "envoy/api/v2/discovery.proto";

import "google/api/annotations.proto";
import "google/protobuf/struct.proto";

import "validate/validate.proto";

// [#protodoc-title: runTime Discovery Service (RTDS)]
// RTDS :ref:`configuration overview <config_runtime_rtds>`

// [#not-implemented-hide:] Not configuration. Workaround c++ protobuf issue with importing
// services: https://github.com/google/protobuf/issues/4221
message RtdsDummy {
}

// Discovery service for Runtime resources.
service RuntimeDiscoveryService {
  rpc StreamRuntime(stream envoy.api.v2.DiscoveryRequest)
      returns (stream envoy.api.v2.DiscoveryResponse) {
  }

  rpc DeltaRuntime(stream envoy.api.v2.DeltaDiscoveryRequest)
      returns (stream envoy.api.v2.DeltaDiscoveryResponse) {
  }

  rpc FetchRuntime(envoy.api.v2.DiscoveryRequest) returns (envoy.api.v2.DiscoveryResponse) {
    option (google.api.http) = {
      post: "/v2/discovery:runtime"
      body: "*"
    };
  }
}

// RTDS resource type. This describes a layer in the runtime virtual filesystem.
message Runtime {
  // Runtime resource name. This makes the Runtime a self-describing xDS
  // resource.
  string name = 1 [(validate.rules).string.min_bytes = 1];
  google.protobuf.Struct layer = 2;
}