feat 默认模块

net/grpc/resolver/conn.go

@@ -9,12 +9,23 @@ import (
 	"time"
 )
 
+const serviceConfig = `{
+	"loadBalancingConfig": [
+		{
+			"round_robin": {}
+		}
+	],
+	"healthCheckConfig": {
+		"serviceName": ""
+	}
+}`
+
 func NewGrpcConnection(target string) (*grpc.ClientConn, error) {
 	cc, err := grpc.NewClient(
 		target,
 		grpc.WithTransportCredentials(insecure.NewCredentials()),
 		grpc.WithStatsHandler(otelgrpc.NewClientHandler()),
-		grpc.WithDefaultServiceConfig(`{"loadBalancingConfig": [{"round_robin": {}}]}`),
+		grpc.WithDefaultServiceConfig(serviceConfig),
 		grpc.WithKeepaliveParams(
 			keepalive.ClientParameters{
 				Time:                30 * time.Second, // 保活探测包发送的时间间隔

net/grpc/service/service.go

@@ -8,6 +8,8 @@ import (
 	"git.hlsq.asia/mmorpg/service-common/utils"
 	"go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc"
 	"google.golang.org/grpc"
+	"google.golang.org/grpc/health"
+	"google.golang.org/grpc/health/grpc_health_v1"
 	"google.golang.org/grpc/keepalive"
 	"net"
 	"sync"
@@ -15,7 +17,8 @@ import (
 )
 
 type IService interface {
-	Init()
+	Init(ready *sync.WaitGroup)
+	SetReady()
 	Close()
 }
 
@@ -29,10 +32,11 @@ type Base struct {
 	OnInit                   func(serve *grpc.Server)
 	OnClose                  func()
 
-	wg *sync.WaitGroup
+	wg          *sync.WaitGroup
+	healthcheck *health.Server
 }
 
-func (s *Base) Init() {
+func (s *Base) Init(ready *sync.WaitGroup) {
 	s.wg = &sync.WaitGroup{}
 	s.wg.Add(1)
 	s.SID = utils.SnowflakeInstance().Generate().String()
@@ -63,11 +67,18 @@ func (s *Base) Init() {
 		s.Serve = grpc.NewServer(options...)
 		s.OnInit(s.Serve)
 
+		// 健康检查
+		s.healthcheck = health.NewServer()
+		s.healthcheck.SetServingStatus("", grpc_health_v1.HealthCheckResponse_NOT_SERVING)
+		grpc_health_v1.RegisterHealthServer(s.Serve, s.healthcheck)
+
 		// 服务注册
 		if err = discover.RegisterGrpcServer(s.Target, s.SID, fmt.Sprintf("%v:%d", s.Cfg.Address, s.Cfg.Port), s.Cfg.TTL); err != nil {
 			log.Errorf("%v RegisterGrpcServer err: %v", s.Target, err)
 			return
 		}
+		// 准备好了
+		ready.Done()
 		if err = s.Serve.Serve(lis); err != nil {
 			log.Errorf("%v Serve err: %v", s.Target, err)
 			return
@@ -76,9 +87,18 @@ func (s *Base) Init() {
 	}()
 }
 
+func (s *Base) SetReady() {
+	if s.healthcheck != nil {
+		s.healthcheck.SetServingStatus("", grpc_health_v1.HealthCheckResponse_SERVING)
+	}
+}
+
 func (s *Base) Close() {
+	if s.healthcheck != nil {
+		s.healthcheck.SetServingStatus("", grpc_health_v1.HealthCheckResponse_NOT_SERVING)
+	}
 	if s.Serve != nil {
-		s.Serve.Stop()
+		s.Serve.GracefulStop()
 		s.wg.Wait()
 	}
 }