syntax = "proto3";

package envoy.config.accesslog.v2;
option go_package = "v2";

import "envoy/api/v2/core/grpc_service.proto";

import "validate/validate.proto";

// [#protodoc-title: gRPC Access Log Service (ALS)]

// Configuration for the built-in *envoy.http_grpc_access_log*
// :ref:`AccessLog <envoy_api_msg_config.filter.accesslog.v2.AccessLog>`. This configuration will
// populate :ref:`StreamAccessLogsMessage.http_logs
// <envoy_api_field_service.accesslog.v2.StreamAccessLogsMessage.http_logs>`.
message HttpGrpcAccessLogConfig {
  CommonGrpcAccessLogConfig common_config = 1 [(validate.rules).message.required = true];

  // Additional request headers to log in :ref:`HTTPRequestProperties.request_headers
  // <envoy_api_field_data.accesslog.v2.HTTPRequestProperties.request_headers>`.
  repeated string additional_request_headers_to_log = 2;

  // Additional response headers to log in :ref:`HTTPResponseProperties.response_headers
  // <envoy_api_field_data.accesslog.v2.HTTPResponseProperties.response_headers>`.
  repeated string additional_response_headers_to_log = 3;

  // Additional response trailers to log in :ref:`HTTPResponseProperties.response_trailers
  // <envoy_api_field_data.accesslog.v2.HTTPResponseProperties.response_trailers>`.
  repeated string additional_response_trailers_to_log = 4;
}

// Configuration for the built-in *envoy.tcp_grpc_access_log* type. This configuration will
// populate *StreamAccessLogsMessage.tcp_logs*.
// [#not-implemented-hide:]
message TcpGrpcAccessLogConfig {
  CommonGrpcAccessLogConfig common_config = 1 [(validate.rules).message.required = true];
}

// Common configuration for gRPC access logs.
message CommonGrpcAccessLogConfig {
  // The friendly name of the access log to be returned in :ref:`StreamAccessLogsMessage.Identifier
  // <envoy_api_msg_service.accesslog.v2.StreamAccessLogsMessage.Identifier>`. This allows the
  // access log server to differentiate between different access logs coming from the same Envoy.
  string log_name = 1 [(validate.rules).string.min_bytes = 1];

  // The gRPC service for the access log service.
  envoy.api.v2.core.GrpcService grpc_service = 2 [(validate.rules).message.required = true];
}