gRPC: add keepalive option `PermitWithoutStream`

infra/conf/grpc.go

@@ -11,6 +11,7 @@ type GRPCConfig struct {
 	MultiMode           bool   `json:"multiMode"`
 	IdleTimeout         int32  `json:"idle_timeout"`
 	HealthCheckTimeout  int32  `json:"health_check_timeout"`
+	PermitWithoutStream bool   `json:"permit_without_stream"`
 }
 
 func (g *GRPCConfig) Build() (proto.Message, error) {
@@ -25,5 +26,6 @@ func (g *GRPCConfig) Build() (proto.Message, error) {
 		MultiMode:           g.MultiMode,
 		IdleTimeout:         g.IdleTimeout,
 		HealthCheckTimeout:  g.HealthCheckTimeout,
+		PermitWithoutStream: g.PermitWithoutStream,
 	}, nil
 }

transport/internet/grpc/config.pb.go

@@ -30,6 +30,7 @@ type Config struct {
 	MultiMode           bool   `protobuf:"varint,3,opt,name=multi_mode,json=multiMode,proto3" json:"multi_mode,omitempty"`
 	IdleTimeout         int32  `protobuf:"varint,4,opt,name=idle_timeout,json=idleTimeout,proto3" json:"idle_timeout,omitempty"`
 	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"`
 }
 
 func (x *Config) Reset() {
@@ -99,6 +100,13 @@ func (x *Config) GetHealthCheckTimeout() int32 {
 	return 0
 }
 
+func (x *Config) GetPermitWithoutStream() bool {
+	if x != nil {
+		return x.PermitWithoutStream
+	}
+	return false
+}
+
 var File_transport_internet_grpc_config_proto protoreflect.FileDescriptor
 
 var file_transport_internet_grpc_config_proto_rawDesc = []byte{
@@ -106,7 +114,7 @@ var file_transport_internet_grpc_config_proto_rawDesc = []byte{
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@@ -118,10 +126,14 @@ var file_transport_internet_grpc_config_proto_rawDesc = []byte{
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 }
 
 var (

transport/internet/grpc/config.proto

@@ -9,4 +9,5 @@ message Config {
   bool multi_mode = 3;
   int32 idle_timeout = 4;
   int32 health_check_timeout = 5;
+  bool permit_without_stream = 6;
 }

transport/internet/grpc/dial.go

@@ -127,10 +127,11 @@ func getGrpcClient(ctx context.Context, dest net.Destination, streamSettings *in
 		dialOptions = append(dialOptions, grpc.WithInsecure())
 	}
 
-	if grpcSettings.IdleTimeout > 0 || grpcSettings.HealthCheckTimeout > 0 {
+	if grpcSettings.IdleTimeout > 0 || grpcSettings.HealthCheckTimeout > 0 || grpcSettings.PermitWithoutStream {
 		dialOptions = append(dialOptions, grpc.WithKeepaliveParams(keepalive.ClientParameters{
 			Time:                time.Second * time.Duration(grpcSettings.IdleTimeout),
 			Timeout:             time.Second * time.Duration(grpcSettings.HealthCheckTimeout),
+			PermitWithoutStream: grpcSettings.PermitWithoutStream,
 		}))
 	}