Add user agent to gRPC (#1790)

infra/conf/grpc.go

@@ -12,6 +12,7 @@ type GRPCConfig struct {
 	HealthCheckTimeout  int32  `json:"health_check_timeout"`
 	PermitWithoutStream bool   `json:"permit_without_stream"`
 	InitialWindowsSize  int32  `json:"initial_windows_size"`
+	UserAgent           string `json:"user_agent"`
 }
 
 func (g *GRPCConfig) Build() (proto.Message, error) {
@@ -33,5 +34,6 @@ func (g *GRPCConfig) Build() (proto.Message, error) {
 		HealthCheckTimeout:  g.HealthCheckTimeout,
 		PermitWithoutStream: g.PermitWithoutStream,
 		InitialWindowsSize:  g.InitialWindowsSize,
+		UserAgent:           g.UserAgent,
 	}, nil
 }

transport/internet/grpc/config.pb.go

@@ -32,6 +32,7 @@ type Config struct {
 	HealthCheckTimeout  int32  `protobuf:"varint,5,opt,name=health_check_timeout,json=healthCheckTimeout,proto3" json:"health_check_timeout,omitempty"`
 	PermitWithoutStream bool   `protobuf:"varint,6,opt,name=permit_without_stream,json=permitWithoutStream,proto3" json:"permit_without_stream,omitempty"`
 	InitialWindowsSize  int32  `protobuf:"varint,7,opt,name=initial_windows_size,json=initialWindowsSize,proto3" json:"initial_windows_size,omitempty"`
+	UserAgent           string `protobuf:"bytes,8,opt,name=user_agent,json=userAgent,proto3" json:"user_agent,omitempty"`
 }
 
 func (x *Config) Reset() {
@@ -115,6 +116,13 @@ func (x *Config) GetInitialWindowsSize() int32 {
 	return 0
 }
 
+func (x *Config) GetUserAgent() string {
+	if x != nil {
+		return x.UserAgent
+	}
+	return ""
+}
+
 var File_transport_internet_grpc_config_proto protoreflect.FileDescriptor
 
 var file_transport_internet_grpc_config_proto_rawDesc = []byte{
@@ -122,7 +130,7 @@ var file_transport_internet_grpc_config_proto_rawDesc = []byte{
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@@ -140,11 +148,13 @@ var file_transport_internet_grpc_config_proto_rawDesc = []byte{
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 }
 
 var (

transport/internet/grpc/config.proto

@@ -11,4 +11,5 @@ message Config {
   int32 health_check_timeout = 5;
   bool permit_without_stream = 6;
   int32 initial_windows_size = 7;
+  string user_agent = 8;
 }

transport/internet/grpc/dial.go

@@ -150,6 +150,10 @@ func getGrpcClient(ctx context.Context, dest net.Destination, streamSettings *in
 		dialOptions = append(dialOptions, grpc.WithInitialWindowSize(grpcSettings.InitialWindowsSize))
 	}
 
+	if grpcSettings.UserAgent != "" {
+		dialOptions = append(dialOptions, grpc.WithUserAgent(grpcSettings.UserAgent))
+	}
+
 	var grpcDestHost string
 	if dest.Address.Family().IsDomain() {
 		grpcDestHost = dest.Address.Domain()