键值存储

注意测试中代码编写，测试通过服务个别中断不会导致程序出错退出
刚才的问题原因是测试程序中conn.close(）未释放导致
2021-01-24 09:23:11 +08:00 · 2021-01-23 23:10:10 +08:00 · 2021-01-23 23:03:10 +08:00 · 2021-01-23 22:54:55 +08:00 · 2021-01-23 22:15:31 +08:00 · 2021-01-23 21:58:32 +08:00
17 changed files with 1180 additions and 314 deletions
--- a/.gitignore
+++ b/.gitignore
@ -14,4 +14,5 @@

 # Dependency directories (remove the comment below to include it)
 # vendor/
-
+consul-demo
+logs/
--- a/2
+++ b/2
@ -1,3 +1,3 @@
 .PHONY: proto
 proto:
-	protoc -I. -I$(GOPATH)/src/googleapis --swagger_out=logtostderr=true:. --grpc-gateway_out=logtostderr=true:. --go_out=plugins=grpc:proto/ proto/*.proto 
+	protoc -I. -I${GOPATH}/src/googleapis --swagger_out=logtostderr=true:. --grpc-gateway_out=logtostderr=true:. --go_out=plugins=grpc:proto/ proto/*.proto 
--- a/README.md
+++ b/README.md
@ -43,9 +43,12 @@
 	}()

 #### 注册中心注册代码编写
+    编写在文件consul-service.go中，作为源代码组件形式分发

 #### 实现客户端代码

 #### 启动注册中心consul
+    1. 开发模式
+    consul agent -dev -bind=0.0.0.0 -advertise=192.168.8.254 -client=0.0.0.0 -ui

 #### 运行及测试并展开后续针对consul各功能使用的代码
--- a/client/main.go
+++ b/client/main.go
@ -0,0 +1,59 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	log "github.com/sirupsen/logrus"
+	"google.golang.org/grpc"
+	"myschools.me/suguo/consul-demo/consul"
+	pb "myschools.me/suguo/consul-demo/proto"
+)
+
+func main() {
+	v := []byte("asdfsdfdsf")
+	consul.KVPut("hello", &v, 0)
+	vv, _ := consul.KVGet("hello", 0)
+	fmt.Println(string(*vv))
+
+	for {
+		time.Sleep(10 * time.Millisecond)
+
+		node, err := consul.FindNode("demo")
+		if err != nil {
+			log.WithFields(log.Fields{
+				"func": "main",
+			}).Errorf("%v", err)
+			fmt.Printf("%v\n", err)
+			continue
+		}
+		if node == nil {
+			fmt.Println("node is empty")
+			continue
+		}
+
+		ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
+		// conn, err := grpc.Dial("127.0.0.1:9001", grpc.WithBlock(), grpc.WithInsecure())
+		conn, err := grpc.DialContext(ctx, fmt.Sprintf("%s:%d", node.Address, node.Port), grpc.WithBlock(), grpc.WithInsecure(), grpc.WithBalancerName("round_robin"))
+		if err != nil {
+			fmt.Printf("%v\n", err)
+			cancel()
+			continue
+		}
+
+		c := pb.NewHelloClient(conn)
+		resp, err := c.Say(ctx, &pb.SayRequest{Name: "jiale", Day: time.Now().Format("2006-01-02 15:04:05")})
+		if err != nil {
+			log.WithFields(log.Fields{
+				"func": "main",
+			}).Errorf("%v", err)
+			fmt.Printf("%v\n", err)
+			continue
+		}
+		log.WithFields(log.Fields{
+			"func": "main",
+		}).Infof("%s", resp.Reply)
+		conn.Close()
+	}
+}
--- a/BIN
+++ b/BIN
--- a/consul/consul-service.go
+++ b/consul/consul-service.go
@ -0,0 +1,162 @@
+package consul
+
+import (
+	"fmt"
+	"math/rand"
+	"time"
+
+	consulapi "github.com/hashicorp/consul/api"
+	log "github.com/sirupsen/logrus"
+)
+
+const (
+	consulAddr string = "127.0.0.1:8500"
+)
+
+var _client *consulapi.Client
+
+func getClient() *consulapi.Client {
+	if _client != nil {
+		return _client
+	}
+
+	// 创建连接consul服务配置
+	config := consulapi.DefaultConfig()
+	config.Address = consulAddr
+	client, err := consulapi.NewClient(config)
+	if err != nil {
+		log.WithFields(log.Fields{
+			"func": "getClient",
+		}).Errorf("NewClient: %v", err)
+		return nil
+	}
+	_client = client
+	return client
+}
+
+//Register 注册服务到consul
+func Register(name string, addr string, port int, tags ...string) {
+	client := getClient()
+	if client == nil {
+		return
+	}
+	// 创建注册到consul的服务到
+	registration := new(consulapi.AgentServiceRegistration)
+	registration.ID = fmt.Sprintf("%s-%s:%d", name, addr, port)
+	registration.Name = name
+	registration.Port = port
+	registration.Tags = tags
+	registration.Address = addr
+
+	// 增加consul健康检查回调函数
+	check := new(consulapi.AgentServiceCheck)
+	check.GRPC = fmt.Sprintf("%s:%d", registration.Address, registration.Port)
+	check.Timeout = "5s"
+	check.Interval = "5s"
+	check.DeregisterCriticalServiceAfter = "30s" // 故障检查失败30s后 consul自动将注册服务删除
+	registration.Check = check
+
+	// 注册服务到consul
+	if err := client.Agent().ServiceRegister(registration); err != nil {
+		log.WithFields(log.Fields{
+			"func": "Register",
+		}).Errorf("ServiceRegister: %v", err)
+	}
+}
+
+//DeRegister 取消consul注册的服务
+func DeRegister(name string, addr string, port int) {
+	client := getClient()
+	if client == nil {
+		return
+	}
+	client.Agent().ServiceDeregister(fmt.Sprintf("%s-%s:%d", name, addr, port))
+}
+
+//FindNode 查找节点
+func FindNode(servicename string) (*consulapi.AgentService, error) {
+	client := getClient()
+	if client == nil {
+		return nil, nil
+	}
+	services, _, err := client.Health().Service(servicename, "", true, nil)
+	if err != nil {
+		return nil, err
+	}
+	l := len(services)
+	if l == 0 {
+		return nil, nil
+	}
+	if l == 1 {
+		return services[0].Service, nil
+	}
+
+	r := rand.New(rand.NewSource(time.Now().UnixNano()))
+	return services[r.Intn(l)%l].Service, nil
+}
+
+//FindServer 从consul中发现服务
+func FindServer() {
+	client := getClient()
+	if client == nil {
+		return
+	}
+
+	// 获取所有service
+	services, _ := client.Agent().Services()
+	for _, value := range services {
+		fmt.Println(value.Address)
+		fmt.Println(value.Port)
+	}
+
+	fmt.Println("=================================")
+	// 获取指定service
+	service, _, err := client.Agent().Service("demo", nil)
+	if err == nil {
+		fmt.Println(service.Address)
+		fmt.Println(service.Port)
+	}
+
+	s, _, _ := client.Health().Service("demo", "demo", true, nil)
+	for _, service := range s {
+		fmt.Println("service.Service.Address:", service.Service.Address, "service.Service.Port:", service.Service.Port)
+	}
+}
+
+//CheckHeath 健康检查
+func CheckHeath(serviceid string) {
+	client := getClient()
+	if client == nil {
+		return
+	}
+	// 健康检查
+	a, b, _ := client.Agent().AgentHealthServiceByID(serviceid)
+	fmt.Println(a)
+	fmt.Println(b)
+}
+
+//KVPut test
+func KVPut(key string, values *[]byte, flags uint64) (*consulapi.WriteMeta, error) {
+	client := getClient()
+	if client == nil {
+		return nil, nil
+	}
+
+	return client.KV().Put(&consulapi.KVPair{Key: key, Flags: flags, Value: *values}, nil)
+}
+
+//KVGet 获取值
+func KVGet(key string, flags uint64) (*[]byte, error) {
+	client := getClient()
+	if client == nil {
+		return nil, nil
+	}
+
+	// KV get值
+	data, _, _ := client.KV().Get(key, nil)
+	if data != nil {
+		return &data.Value, nil
+	}
+
+	return nil, nil
+}
--- a/go.mod
+++ b/go.mod
@ -3,7 +3,21 @@ module myschools.me/suguo/consul-demo
 go 1.14

 require (
+	github.com/armon/go-metrics v0.3.6 // indirect
+	github.com/fatih/color v1.10.0 // indirect
+	github.com/gin-gonic/gin v1.6.3
 	github.com/golang/protobuf v1.4.3
+	github.com/hashicorp/consul/api v1.8.1
+	github.com/hashicorp/go-hclog v0.15.0 // indirect
+	github.com/hashicorp/go-immutable-radix v1.3.0 // indirect
+	github.com/hashicorp/golang-lru v0.5.4 // indirect
+	github.com/jonboulle/clockwork v0.2.2 // indirect
+	github.com/lestrrat-go/file-rotatelogs v2.4.0+incompatible
+	github.com/lestrrat-go/strftime v1.0.4 // indirect
+	github.com/mitchellh/mapstructure v1.4.1 // indirect
+	github.com/rifflock/lfshook v0.0.0-20180920164130-b9218ef580f5
+	github.com/sirupsen/logrus v1.4.2
+	golang.org/x/sys v0.0.0-20210122235752-a8b976e07c7b // indirect
 	google.golang.org/grpc v1.35.0
 	google.golang.org/protobuf v1.25.0
 )
--- a/go.sum
+++ b/go.sum
@ -1,17 +1,63 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
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+github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
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@ -21,39 +67,215 @@ github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QD
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+golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
+golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
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 golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
+golang.org/x/tools v0.0.0-20190907020128-2ca718005c18/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
@ -77,7 +299,15 @@ google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2
 google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.25.0 h1:Ejskq+SyPohKW+1uil0JJMtmHCgJPJ/qWTxr8qp+R4c=
 google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
+gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
--- a/health/health-service.go
+++ b/health/health-service.go
@ -0,0 +1,35 @@
+package health
+
+import (
+	"context"
+
+	log "github.com/sirupsen/logrus"
+	pb "myschools.me/suguo/consul-demo/proto"
+)
+
+//Server 微服务
+type Server struct {
+}
+
+//Check 实现微服务接口
+func (s *Server) Check(c context.Context, req *pb.HealthCheckRequest) (*pb.HealthCheckResponse, error) {
+	log.WithFields(log.Fields{
+		"func": "Check",
+	}).Infof("%s %s %s", req.String(), req.Service, req.GetService())
+	resp := &pb.HealthCheckResponse{
+		Status: pb.HealthCheckResponse_SERVING,
+	}
+	return resp, nil
+}
+
+//Watch  实现微服务接口stream
+func (s *Server) Watch(req *pb.HealthCheckRequest, out pb.Health_WatchServer) error {
+	log.WithFields(log.Fields{
+		"func": "Watch",
+	}).Infof("%s", req.GetService())
+	out.Send(&pb.HealthCheckResponse{
+		Status: pb.HealthCheckResponse_SERVING,
+	})
+
+	return nil
+}
--- a/logger.go
+++ b/logger.go
@ -0,0 +1,89 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	rotatelogs "github.com/lestrrat-go/file-rotatelogs"
+	"github.com/rifflock/lfshook"
+	log "github.com/sirupsen/logrus"
+)
+
+func init() {
+	//日志初始化
+	log.SetOutput(os.Stdout)
+	log.SetLevel(log.InfoLevel)
+	log.AddHook(newLfsHook(72))
+}
+
+func newLfsHook(maxRemainCnt uint) log.Hook {
+	//检查与创建日志文件夹
+	_, err := os.Stat("logs")
+	if os.IsNotExist(err) {
+		os.Mkdir("logs", 0755)
+	}
+
+	logName := fmt.Sprintf(`logs/%s`, APPNAME)
+	writer, err := rotatelogs.New(
+		logName+"%Y%m%d%H.log",
+		rotatelogs.WithLinkName(logName),
+		rotatelogs.WithRotationTime(time.Hour),
+		rotatelogs.WithRotationCount(maxRemainCnt),
+	)
+
+	if err != nil {
+		panic("config local file system for logger error: " + err.Error())
+	}
+	log.SetLevel(log.DebugLevel)
+
+	lfsHook := lfshook.NewHook(lfshook.WriterMap{
+		log.DebugLevel: writer,
+		log.InfoLevel:  writer,
+		log.WarnLevel:  writer,
+		log.ErrorLevel: writer,
+		log.FatalLevel: writer,
+		log.PanicLevel: writer,
+	}, &log.TextFormatter{DisableColors: true})
+
+	return lfsHook
+}
+
+//LoggerToFile 日志记录到文件
+func loggerToFile() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		// 开始时间
+		startTime := time.Now()
+
+		// 处理请求
+		c.Next()
+
+		// 结束时间
+		endTime := time.Now()
+
+		// 执行时间
+		latencyTime := endTime.Sub(startTime)
+
+		// 请求方式
+		reqMethod := c.Request.Method
+
+		// 请求路由
+		reqURI := c.Request.RequestURI
+
+		// 状态码
+		statusCode := c.Writer.Status()
+
+		// 请求IP
+		clientIP := c.ClientIP()
+
+		// 日志格式
+		log.Infof("| %3d | %13v | %15s | %s | %s |",
+			statusCode,
+			latencyTime,
+			clientIP,
+			reqMethod,
+			reqURI,
+		)
+	}
+}
--- a/main.go
+++ b/main.go
@ -2,6 +2,8 @@ package main

 import (
 	"context"
+	"flag"
+	"fmt"
 	"log"
 	"net"
 	"os"
@ -9,23 +11,35 @@ import (
 	"time"

 	"google.golang.org/grpc"
+	"myschools.me/suguo/consul-demo/consul"
+	"myschools.me/suguo/consul-demo/health"
 	pb "myschools.me/suguo/consul-demo/proto"
 	"myschools.me/suguo/consul-demo/sample"
 )

+const (
+	//APPNAME 每个服务默认有一个名称
+	APPNAME string = "demo"
+)
+
 func main() {
+	addr := flag.String("addr", "0.0.0.0", "service address")
+	port := flag.Int("port", 9001, "service port")
+	flag.Parse()
+
 	ctx := context.Background()
 	ctx, cancel := context.WithCancel(ctx)
 	defer cancel()

 	// grpc服务定义
-	s := grpc.NewServer()
+	s := grpc.NewServer(grpc.MaxRecvMsgSize(1024), grpc.MaxSendMsgSize(1024))
 	pb.RegisterHelloServer(s, &sample.Server{})
+	pb.RegisterHealthServer(s, &health.Server{})

 	// grpc服务启动
 	go func() {
-		log.Printf("starting grpc service on %s\n", ":9001")
-		lis, err := net.Listen("tcp", ":9001")
+		log.Printf("starting grpc service on %s:%d\n", *addr, *port)
+		lis, err := net.Listen("tcp", fmt.Sprintf("%s:%d", *addr, *port))
 		if err != nil {
 			log.Fatal("fail to open port: ", err)
 		}
@ -35,6 +49,10 @@ func main() {
 		}
 	}()

+	//注册至consul
+	consul.Register(APPNAME, *addr, *port, "demo")
+	defer consul.DeRegister(APPNAME, *addr, *port)
+
 	// 服务停止相应
 	c := make(chan os.Signal, 1)
 	signal.Notify(c, os.Interrupt)
--- a/proto/health.pb.go
+++ b/proto/health.pb.go
@ -0,0 +1,438 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.11.4
+// source: proto/health.proto
+
+package proto
+
+import (
+	context "context"
+	proto "github.com/golang/protobuf/proto"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
+type HealthCheckResponse_ServingStatus int32
+
+const (
+	HealthCheckResponse_UNKNOWN         HealthCheckResponse_ServingStatus = 0
+	HealthCheckResponse_SERVING         HealthCheckResponse_ServingStatus = 1
+	HealthCheckResponse_NOT_SERVING     HealthCheckResponse_ServingStatus = 2
+	HealthCheckResponse_SERVICE_UNKNOWN HealthCheckResponse_ServingStatus = 3 // Used only by the Watch method.
+)
+
+// Enum value maps for HealthCheckResponse_ServingStatus.
+var (
+	HealthCheckResponse_ServingStatus_name = map[int32]string{
+		0: "UNKNOWN",
+		1: "SERVING",
+		2: "NOT_SERVING",
+		3: "SERVICE_UNKNOWN",
+	}
+	HealthCheckResponse_ServingStatus_value = map[string]int32{
+		"UNKNOWN":         0,
+		"SERVING":         1,
+		"NOT_SERVING":     2,
+		"SERVICE_UNKNOWN": 3,
+	}
+)
+
+func (x HealthCheckResponse_ServingStatus) Enum() *HealthCheckResponse_ServingStatus {
+	p := new(HealthCheckResponse_ServingStatus)
+	*p = x
+	return p
+}
+
+func (x HealthCheckResponse_ServingStatus) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (HealthCheckResponse_ServingStatus) Descriptor() protoreflect.EnumDescriptor {
+	return file_proto_health_proto_enumTypes[0].Descriptor()
+}
+
+func (HealthCheckResponse_ServingStatus) Type() protoreflect.EnumType {
+	return &file_proto_health_proto_enumTypes[0]
+}
+
+func (x HealthCheckResponse_ServingStatus) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Use HealthCheckResponse_ServingStatus.Descriptor instead.
+func (HealthCheckResponse_ServingStatus) EnumDescriptor() ([]byte, []int) {
+	return file_proto_health_proto_rawDescGZIP(), []int{1, 0}
+}
+
+type HealthCheckRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Service string `protobuf:"bytes,1,opt,name=service,proto3" json:"service,omitempty"`
+}
+
+func (x *HealthCheckRequest) Reset() {
+	*x = HealthCheckRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_health_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *HealthCheckRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*HealthCheckRequest) ProtoMessage() {}
+
+func (x *HealthCheckRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_health_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use HealthCheckRequest.ProtoReflect.Descriptor instead.
+func (*HealthCheckRequest) Descriptor() ([]byte, []int) {
+	return file_proto_health_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *HealthCheckRequest) GetService() string {
+	if x != nil {
+		return x.Service
+	}
+	return ""
+}
+
+type HealthCheckResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Status HealthCheckResponse_ServingStatus `protobuf:"varint,1,opt,name=status,proto3,enum=grpc.health.v1.HealthCheckResponse_ServingStatus" json:"status,omitempty"`
+}
+
+func (x *HealthCheckResponse) Reset() {
+	*x = HealthCheckResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_health_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *HealthCheckResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*HealthCheckResponse) ProtoMessage() {}
+
+func (x *HealthCheckResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_health_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use HealthCheckResponse.ProtoReflect.Descriptor instead.
+func (*HealthCheckResponse) Descriptor() ([]byte, []int) {
+	return file_proto_health_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *HealthCheckResponse) GetStatus() HealthCheckResponse_ServingStatus {
+	if x != nil {
+		return x.Status
+	}
+	return HealthCheckResponse_UNKNOWN
+}
+
+var File_proto_health_proto protoreflect.FileDescriptor
+
+var file_proto_health_proto_rawDesc = []byte{
+	0x0a, 0x12, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2f, 0x68, 0x65, 0x61, 0x6c, 0x74, 0x68, 0x2e, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x12, 0x0e, 0x67, 0x72, 0x70, 0x63, 0x2e, 0x68, 0x65, 0x61, 0x6c, 0x74,
+	0x68, 0x2e, 0x76, 0x31, 0x22, 0x2e, 0x0a, 0x12, 0x48, 0x65, 0x61, 0x6c, 0x74, 0x68, 0x43, 0x68,
+	0x65, 0x63, 0x6b, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x18, 0x0a, 0x07, 0x73, 0x65,
+	0x72, 0x76, 0x69, 0x63, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x07, 0x73, 0x65, 0x72,
+	0x76, 0x69, 0x63, 0x65, 0x22, 0xb1, 0x01, 0x0a, 0x13, 0x48, 0x65, 0x61, 0x6c, 0x74, 0x68, 0x43,
+	0x68, 0x65, 0x63, 0x6b, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x49, 0x0a, 0x06,
+	0x73, 0x74, 0x61, 0x74, 0x75, 0x73, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0e, 0x32, 0x31, 0x2e, 0x67,
+	0x72, 0x70, 0x63, 0x2e, 0x68, 0x65, 0x61, 0x6c, 0x74, 0x68, 0x2e, 0x76, 0x31, 0x2e, 0x48, 0x65,
+	0x61, 0x6c, 0x74, 0x68, 0x43, 0x68, 0x65, 0x63, 0x6b, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73,
+	0x65, 0x2e, 0x53, 0x65, 0x72, 0x76, 0x69, 0x6e, 0x67, 0x53, 0x74, 0x61, 0x74, 0x75, 0x73, 0x52,
+	0x06, 0x73, 0x74, 0x61, 0x74, 0x75, 0x73, 0x22, 0x4f, 0x0a, 0x0d, 0x53, 0x65, 0x72, 0x76, 0x69,
+	0x6e, 0x67, 0x53, 0x74, 0x61, 0x74, 0x75, 0x73, 0x12, 0x0b, 0x0a, 0x07, 0x55, 0x4e, 0x4b, 0x4e,
+	0x4f, 0x57, 0x4e, 0x10, 0x00, 0x12, 0x0b, 0x0a, 0x07, 0x53, 0x45, 0x52, 0x56, 0x49, 0x4e, 0x47,
+	0x10, 0x01, 0x12, 0x0f, 0x0a, 0x0b, 0x4e, 0x4f, 0x54, 0x5f, 0x53, 0x45, 0x52, 0x56, 0x49, 0x4e,
+	0x47, 0x10, 0x02, 0x12, 0x13, 0x0a, 0x0f, 0x53, 0x45, 0x52, 0x56, 0x49, 0x43, 0x45, 0x5f, 0x55,
+	0x4e, 0x4b, 0x4e, 0x4f, 0x57, 0x4e, 0x10, 0x03, 0x32, 0xae, 0x01, 0x0a, 0x06, 0x48, 0x65, 0x61,
+	0x6c, 0x74, 0x68, 0x12, 0x50, 0x0a, 0x05, 0x43, 0x68, 0x65, 0x63, 0x6b, 0x12, 0x22, 0x2e, 0x67,
+	0x72, 0x70, 0x63, 0x2e, 0x68, 0x65, 0x61, 0x6c, 0x74, 0x68, 0x2e, 0x76, 0x31, 0x2e, 0x48, 0x65,
+	0x61, 0x6c, 0x74, 0x68, 0x43, 0x68, 0x65, 0x63, 0x6b, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74,
+	0x1a, 0x23, 0x2e, 0x67, 0x72, 0x70, 0x63, 0x2e, 0x68, 0x65, 0x61, 0x6c, 0x74, 0x68, 0x2e, 0x76,
+	0x31, 0x2e, 0x48, 0x65, 0x61, 0x6c, 0x74, 0x68, 0x43, 0x68, 0x65, 0x63, 0x6b, 0x52, 0x65, 0x73,
+	0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x52, 0x0a, 0x05, 0x57, 0x61, 0x74, 0x63, 0x68, 0x12, 0x22,
+	0x2e, 0x67, 0x72, 0x70, 0x63, 0x2e, 0x68, 0x65, 0x61, 0x6c, 0x74, 0x68, 0x2e, 0x76, 0x31, 0x2e,
+	0x48, 0x65, 0x61, 0x6c, 0x74, 0x68, 0x43, 0x68, 0x65, 0x63, 0x6b, 0x52, 0x65, 0x71, 0x75, 0x65,
+	0x73, 0x74, 0x1a, 0x23, 0x2e, 0x67, 0x72, 0x70, 0x63, 0x2e, 0x68, 0x65, 0x61, 0x6c, 0x74, 0x68,
+	0x2e, 0x76, 0x31, 0x2e, 0x48, 0x65, 0x61, 0x6c, 0x74, 0x68, 0x43, 0x68, 0x65, 0x63, 0x6b, 0x52,
+	0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x30, 0x01, 0x42, 0x09, 0x5a, 0x07, 0x2e, 0x3b, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_proto_health_proto_rawDescOnce sync.Once
+	file_proto_health_proto_rawDescData = file_proto_health_proto_rawDesc
+)
+
+func file_proto_health_proto_rawDescGZIP() []byte {
+	file_proto_health_proto_rawDescOnce.Do(func() {
+		file_proto_health_proto_rawDescData = protoimpl.X.CompressGZIP(file_proto_health_proto_rawDescData)
+	})
+	return file_proto_health_proto_rawDescData
+}
+
+var file_proto_health_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
+var file_proto_health_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
+var file_proto_health_proto_goTypes = []interface{}{
+	(HealthCheckResponse_ServingStatus)(0), // 0: grpc.health.v1.HealthCheckResponse.ServingStatus
+	(*HealthCheckRequest)(nil),             // 1: grpc.health.v1.HealthCheckRequest
+	(*HealthCheckResponse)(nil),            // 2: grpc.health.v1.HealthCheckResponse
+}
+var file_proto_health_proto_depIdxs = []int32{
+	0, // 0: grpc.health.v1.HealthCheckResponse.status:type_name -> grpc.health.v1.HealthCheckResponse.ServingStatus
+	1, // 1: grpc.health.v1.Health.Check:input_type -> grpc.health.v1.HealthCheckRequest
+	1, // 2: grpc.health.v1.Health.Watch:input_type -> grpc.health.v1.HealthCheckRequest
+	2, // 3: grpc.health.v1.Health.Check:output_type -> grpc.health.v1.HealthCheckResponse
+	2, // 4: grpc.health.v1.Health.Watch:output_type -> grpc.health.v1.HealthCheckResponse
+	3, // [3:5] is the sub-list for method output_type
+	1, // [1:3] is the sub-list for method input_type
+	1, // [1:1] is the sub-list for extension type_name
+	1, // [1:1] is the sub-list for extension extendee
+	0, // [0:1] is the sub-list for field type_name
+}
+
+func init() { file_proto_health_proto_init() }
+func file_proto_health_proto_init() {
+	if File_proto_health_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_proto_health_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*HealthCheckRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_proto_health_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*HealthCheckResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_proto_health_proto_rawDesc,
+			NumEnums:      1,
+			NumMessages:   2,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_proto_health_proto_goTypes,
+		DependencyIndexes: file_proto_health_proto_depIdxs,
+		EnumInfos:         file_proto_health_proto_enumTypes,
+		MessageInfos:      file_proto_health_proto_msgTypes,
+	}.Build()
+	File_proto_health_proto = out.File
+	file_proto_health_proto_rawDesc = nil
+	file_proto_health_proto_goTypes = nil
+	file_proto_health_proto_depIdxs = nil
+}
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ context.Context
+var _ grpc.ClientConnInterface
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+const _ = grpc.SupportPackageIsVersion6
+
+// HealthClient is the client API for Health service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
+type HealthClient interface {
+	Check(ctx context.Context, in *HealthCheckRequest, opts ...grpc.CallOption) (*HealthCheckResponse, error)
+	Watch(ctx context.Context, in *HealthCheckRequest, opts ...grpc.CallOption) (Health_WatchClient, error)
+}
+
+type healthClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewHealthClient(cc grpc.ClientConnInterface) HealthClient {
+	return &healthClient{cc}
+}
+
+func (c *healthClient) Check(ctx context.Context, in *HealthCheckRequest, opts ...grpc.CallOption) (*HealthCheckResponse, error) {
+	out := new(HealthCheckResponse)
+	err := c.cc.Invoke(ctx, "/grpc.health.v1.Health/Check", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *healthClient) Watch(ctx context.Context, in *HealthCheckRequest, opts ...grpc.CallOption) (Health_WatchClient, error) {
+	stream, err := c.cc.NewStream(ctx, &_Health_serviceDesc.Streams[0], "/grpc.health.v1.Health/Watch", opts...)
+	if err != nil {
+		return nil, err
+	}
+	x := &healthWatchClient{stream}
+	if err := x.ClientStream.SendMsg(in); err != nil {
+		return nil, err
+	}
+	if err := x.ClientStream.CloseSend(); err != nil {
+		return nil, err
+	}
+	return x, nil
+}
+
+type Health_WatchClient interface {
+	Recv() (*HealthCheckResponse, error)
+	grpc.ClientStream
+}
+
+type healthWatchClient struct {
+	grpc.ClientStream
+}
+
+func (x *healthWatchClient) Recv() (*HealthCheckResponse, error) {
+	m := new(HealthCheckResponse)
+	if err := x.ClientStream.RecvMsg(m); err != nil {
+		return nil, err
+	}
+	return m, nil
+}
+
+// HealthServer is the server API for Health service.
+type HealthServer interface {
+	Check(context.Context, *HealthCheckRequest) (*HealthCheckResponse, error)
+	Watch(*HealthCheckRequest, Health_WatchServer) error
+}
+
+// UnimplementedHealthServer can be embedded to have forward compatible implementations.
+type UnimplementedHealthServer struct {
+}
+
+func (*UnimplementedHealthServer) Check(context.Context, *HealthCheckRequest) (*HealthCheckResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Check not implemented")
+}
+func (*UnimplementedHealthServer) Watch(*HealthCheckRequest, Health_WatchServer) error {
+	return status.Errorf(codes.Unimplemented, "method Watch not implemented")
+}
+
+func RegisterHealthServer(s *grpc.Server, srv HealthServer) {
+	s.RegisterService(&_Health_serviceDesc, srv)
+}
+
+func _Health_Check_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(HealthCheckRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(HealthServer).Check(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/grpc.health.v1.Health/Check",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(HealthServer).Check(ctx, req.(*HealthCheckRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _Health_Watch_Handler(srv interface{}, stream grpc.ServerStream) error {
+	m := new(HealthCheckRequest)
+	if err := stream.RecvMsg(m); err != nil {
+		return err
+	}
+	return srv.(HealthServer).Watch(m, &healthWatchServer{stream})
+}
+
+type Health_WatchServer interface {
+	Send(*HealthCheckResponse) error
+	grpc.ServerStream
+}
+
+type healthWatchServer struct {
+	grpc.ServerStream
+}
+
+func (x *healthWatchServer) Send(m *HealthCheckResponse) error {
+	return x.ServerStream.SendMsg(m)
+}
+
+var _Health_serviceDesc = grpc.ServiceDesc{
+	ServiceName: "grpc.health.v1.Health",
+	HandlerType: (*HealthServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Check",
+			Handler:    _Health_Check_Handler,
+		},
+	},
+	Streams: []grpc.StreamDesc{
+		{
+			StreamName:    "Watch",
+			Handler:       _Health_Watch_Handler,
+			ServerStreams: true,
+		},
+	},
+	Metadata: "proto/health.proto",
+}
--- a/proto/health.proto
+++ b/proto/health.proto
@ -0,0 +1,25 @@
+syntax = "proto3";
+
+package grpc.health.v1;
+
+option go_package=".;proto";
+
+message HealthCheckRequest {
+  string service = 1;
+}
+
+message HealthCheckResponse {
+  enum ServingStatus {
+    UNKNOWN = 0;
+    SERVING = 1;
+    NOT_SERVING = 2;
+    SERVICE_UNKNOWN = 3;  // Used only by the Watch method.
+  }
+  ServingStatus status = 1;
+}
+
+service Health {
+  rpc Check(HealthCheckRequest) returns (HealthCheckResponse);
+
+  rpc Watch(HealthCheckRequest) returns (stream HealthCheckResponse);
+}
--- a/proto/health.swagger.json
+++ b/proto/health.swagger.json
@ -0,0 +1,92 @@
+{
+  "swagger": "2.0",
+  "info": {
+    "title": "proto/health.proto",
+    "version": "version not set"
+  },
+  "consumes": [
+    "application/json"
+  ],
+  "produces": [
+    "application/json"
+  ],
+  "paths": {},
+  "definitions": {
+    "HealthCheckResponseServingStatus": {
+      "type": "string",
+      "enum": [
+        "UNKNOWN",
+        "SERVING",
+        "NOT_SERVING",
+        "SERVICE_UNKNOWN"
+      ],
+      "default": "UNKNOWN"
+    },
+    "protobufAny": {
+      "type": "object",
+      "properties": {
+        "type_url": {
+          "type": "string"
+        },
+        "value": {
+          "type": "string",
+          "format": "byte"
+        }
+      }
+    },
+    "runtimeError": {
+      "type": "object",
+      "properties": {
+        "error": {
+          "type": "string"
+        },
+        "code": {
+          "type": "integer",
+          "format": "int32"
+        },
+        "message": {
+          "type": "string"
+        },
+        "details": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/protobufAny"
+          }
+        }
+      }
+    },
+    "runtimeStreamError": {
+      "type": "object",
+      "properties": {
+        "grpc_code": {
+          "type": "integer",
+          "format": "int32"
+        },
+        "http_code": {
+          "type": "integer",
+          "format": "int32"
+        },
+        "message": {
+          "type": "string"
+        },
+        "http_status": {
+          "type": "string"
+        },
+        "details": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/protobufAny"
+          }
+        }
+      }
+    },
+    "v1HealthCheckResponse": {
+      "type": "object",
+      "properties": {
+        "status": {
+          "$ref": "#/definitions/HealthCheckResponseServingStatus"
+        }
+      }
+    }
+  }
+}
--- a/proto/proto/sample.pb.go
+++ b/proto/proto/sample.pb.go
@ -1,307 +0,0 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// versions:
-// 	protoc-gen-go v1.25.0
-// 	protoc        v3.6.1
-// source: proto/sample.proto
-
-package proto
-
-import (
-	context "context"
-	proto "github.com/golang/protobuf/proto"
-	grpc "google.golang.org/grpc"
-	codes "google.golang.org/grpc/codes"
-	status "google.golang.org/grpc/status"
-	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
-	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
-	reflect "reflect"
-	sync "sync"
-)
-
-const (
-	// Verify that this generated code is sufficiently up-to-date.
-	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
-	// Verify that runtime/protoimpl is sufficiently up-to-date.
-	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
-)
-
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
-type SayRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Name string `protobuf:"bytes,1,opt,name=Name,proto3" json:"Name,omitempty"`
-	Day  string `protobuf:"bytes,2,opt,name=day,proto3" json:"day,omitempty"`
-}
-
-func (x *SayRequest) Reset() {
-	*x = SayRequest{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_sample_proto_msgTypes[0]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *SayRequest) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*SayRequest) ProtoMessage() {}
-
-func (x *SayRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_sample_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use SayRequest.ProtoReflect.Descriptor instead.
-func (*SayRequest) Descriptor() ([]byte, []int) {
-	return file_proto_sample_proto_rawDescGZIP(), []int{0}
-}
-
-func (x *SayRequest) GetName() string {
-	if x != nil {
-		return x.Name
-	}
-	return ""
-}
-
-func (x *SayRequest) GetDay() string {
-	if x != nil {
-		return x.Day
-	}
-	return ""
-}
-
-type SayResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Reply string `protobuf:"bytes,1,opt,name=Reply,proto3" json:"Reply,omitempty"`
-}
-
-func (x *SayResponse) Reset() {
-	*x = SayResponse{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_sample_proto_msgTypes[1]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *SayResponse) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*SayResponse) ProtoMessage() {}
-
-func (x *SayResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_sample_proto_msgTypes[1]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use SayResponse.ProtoReflect.Descriptor instead.
-func (*SayResponse) Descriptor() ([]byte, []int) {
-	return file_proto_sample_proto_rawDescGZIP(), []int{1}
-}
-
-func (x *SayResponse) GetReply() string {
-	if x != nil {
-		return x.Reply
-	}
-	return ""
-}
-
-var File_proto_sample_proto protoreflect.FileDescriptor
-
-var file_proto_sample_proto_rawDesc = []byte{
-	0x0a, 0x12, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2f, 0x73, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x70,
-	0x72, 0x6f, 0x74, 0x6f, 0x12, 0x06, 0x73, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x22, 0x32, 0x0a, 0x0a,
-	0x53, 0x61, 0x79, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x12, 0x0a, 0x04, 0x4e, 0x61,
-	0x6d, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x4e, 0x61, 0x6d, 0x65, 0x12, 0x10,
-	0x0a, 0x03, 0x64, 0x61, 0x79, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x64, 0x61, 0x79,
-	0x22, 0x23, 0x0a, 0x0b, 0x53, 0x61, 0x79, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12,
-	0x14, 0x0a, 0x05, 0x52, 0x65, 0x70, 0x6c, 0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05,
-	0x52, 0x65, 0x70, 0x6c, 0x79, 0x32, 0x37, 0x0a, 0x05, 0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x12, 0x2e,
-	0x0a, 0x03, 0x53, 0x61, 0x79, 0x12, 0x12, 0x2e, 0x73, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x53,
-	0x61, 0x79, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x13, 0x2e, 0x73, 0x61, 0x6d, 0x70,
-	0x6c, 0x65, 0x2e, 0x53, 0x61, 0x79, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x42, 0x07,
-	0x5a, 0x05, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
-}
-
-var (
-	file_proto_sample_proto_rawDescOnce sync.Once
-	file_proto_sample_proto_rawDescData = file_proto_sample_proto_rawDesc
-)
-
-func file_proto_sample_proto_rawDescGZIP() []byte {
-	file_proto_sample_proto_rawDescOnce.Do(func() {
-		file_proto_sample_proto_rawDescData = protoimpl.X.CompressGZIP(file_proto_sample_proto_rawDescData)
-	})
-	return file_proto_sample_proto_rawDescData
-}
-
-var file_proto_sample_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
-var file_proto_sample_proto_goTypes = []interface{}{
-	(*SayRequest)(nil),  // 0: sample.SayRequest
-	(*SayResponse)(nil), // 1: sample.SayResponse
-}
-var file_proto_sample_proto_depIdxs = []int32{
-	0, // 0: sample.Hello.Say:input_type -> sample.SayRequest
-	1, // 1: sample.Hello.Say:output_type -> sample.SayResponse
-	1, // [1:2] is the sub-list for method output_type
-	0, // [0:1] is the sub-list for method input_type
-	0, // [0:0] is the sub-list for extension type_name
-	0, // [0:0] is the sub-list for extension extendee
-	0, // [0:0] is the sub-list for field type_name
-}
-
-func init() { file_proto_sample_proto_init() }
-func file_proto_sample_proto_init() {
-	if File_proto_sample_proto != nil {
-		return
-	}
-	if !protoimpl.UnsafeEnabled {
-		file_proto_sample_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*SayRequest); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_proto_sample_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*SayResponse); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-	}
-	type x struct{}
-	out := protoimpl.TypeBuilder{
-		File: protoimpl.DescBuilder{
-			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: file_proto_sample_proto_rawDesc,
-			NumEnums:      0,
-			NumMessages:   2,
-			NumExtensions: 0,
-			NumServices:   1,
-		},
-		GoTypes:           file_proto_sample_proto_goTypes,
-		DependencyIndexes: file_proto_sample_proto_depIdxs,
-		MessageInfos:      file_proto_sample_proto_msgTypes,
-	}.Build()
-	File_proto_sample_proto = out.File
-	file_proto_sample_proto_rawDesc = nil
-	file_proto_sample_proto_goTypes = nil
-	file_proto_sample_proto_depIdxs = nil
-}
-
-// Reference imports to suppress errors if they are not otherwise used.
-var _ context.Context
-var _ grpc.ClientConnInterface
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the grpc package it is being compiled against.
-const _ = grpc.SupportPackageIsVersion6
-
-// HelloClient is the client API for Hello service.
-//
-// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
-type HelloClient interface {
-	Say(ctx context.Context, in *SayRequest, opts ...grpc.CallOption) (*SayResponse, error)
-}
-
-type helloClient struct {
-	cc grpc.ClientConnInterface
-}
-
-func NewHelloClient(cc grpc.ClientConnInterface) HelloClient {
-	return &helloClient{cc}
-}
-
-func (c *helloClient) Say(ctx context.Context, in *SayRequest, opts ...grpc.CallOption) (*SayResponse, error) {
-	out := new(SayResponse)
-	err := c.cc.Invoke(ctx, "/sample.Hello/Say", in, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-// HelloServer is the server API for Hello service.
-type HelloServer interface {
-	Say(context.Context, *SayRequest) (*SayResponse, error)
-}
-
-// UnimplementedHelloServer can be embedded to have forward compatible implementations.
-type UnimplementedHelloServer struct {
-}
-
-func (*UnimplementedHelloServer) Say(context.Context, *SayRequest) (*SayResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method Say not implemented")
-}
-
-func RegisterHelloServer(s *grpc.Server, srv HelloServer) {
-	s.RegisterService(&_Hello_serviceDesc, srv)
-}
-
-func _Hello_Say_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(SayRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(HelloServer).Say(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: "/sample.Hello/Say",
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(HelloServer).Say(ctx, req.(*SayRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-var _Hello_serviceDesc = grpc.ServiceDesc{
-	ServiceName: "sample.Hello",
-	HandlerType: (*HelloServer)(nil),
-	Methods: []grpc.MethodDesc{
-		{
-			MethodName: "Say",
-			Handler:    _Hello_Say_Handler,
-		},
-	},
-	Streams:  []grpc.StreamDesc{},
-	Metadata: "proto/sample.proto",
-}
--- a/proto/sample.pb.go
+++ b/proto/sample.pb.go
@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.25.0
-// 	protoc        v3.6.1
+// 	protoc        v3.11.4
 // source: proto/sample.proto

 package proto
--- a/sample/sample-service.go
+++ b/sample/sample-service.go
@ -2,6 +2,8 @@ package sample

 import (
 	"context"
+	"strconv"
+	"time"

 	pb "myschools.me/suguo/consul-demo/proto"
 )
@ -10,10 +12,15 @@ import (
 type Server struct {
 }

+var r int
+
 //Say 实现微服务接口
 func (s *Server) Say(c context.Context, req *pb.SayRequest) (*pb.SayResponse, error) {
+	if r == 0 {
+		r = int(time.Now().Unix())
+	}
 	resp := &pb.SayResponse{
-		Reply: req.Name + req.Day,
+		Reply: req.Name + req.Day + " " + strconv.Itoa(r),
 	}
 	return resp, nil
 }
Author	SHA1	Message	Date
suguo.yao	8671b40884	键值存储	2021-01-24 09:23:11 +08:00
suguo.yao	d0ca855fdc	注意测试中代码编写，测试通过服务个别中断不会导致程序出错退出	2021-01-23 23:10:10 +08:00
suguo.yao	fa7dd9c925	刚才的问题原因是测试程序中conn.close(）未释放导致	2021-01-23 23:03:10 +08:00
suguo.yao	fedf99cc78	这里有个问题，getclient中每次生成新的会导致consul限流，如果使用同一个好像时间长了会出异常	2021-01-23 22:54:55 +08:00
suguo.yao	a9ce2c9a82	实现基本的平均负载均衡	2021-01-23 22:15:31 +08:00
suguo.yao	ceb0903819	基本实现服务查找与调用	2021-01-23 21:58:32 +08:00
suguo.yao	16ab9eb14d	GRPC直接调用测试通过	2021-01-23 20:35:44 +08:00
suguo.yao	8f305a2c85	没解决	2021-01-23 16:25:55 +08:00
suguo.yao	2a0bcdfd5d	客户端调用出现意外了～～～	2021-01-23 16:18:35 +08:00
suguo.yao	ef89deca66	使ID命令更适合识别	2021-01-23 15:29:36 +08:00
suguo.yao	481c908bba	ID要区别不同实例用于均衡服务	2021-01-23 15:19:27 +08:00
suguo.yao	94370d33fc	支持多个服务启动，方便之后的测试	2021-01-23 15:10:11 +08:00
suguo.yao	0ac3f91efa	注册consul及DeRegister测试通过	2021-01-23 14:33:41 +08:00
suguo.yao	5c94031de2	增加grpc健康检查接口	2021-01-23 13:57:51 +08:00
suguo.yao	bd91935a9c	解决mac下GOPATH变量读取问题	2021-01-23 13:57:28 +08:00
suguo.yao	32c1c1b96f	修改.gitignore	2021-01-23 13:34:40 +08:00
suguo.yao	ce8e043ab1	删除不需要的二进制文件	2021-01-23 13:34:07 +08:00
suguo.yao	ef0e93169a	consul通用组件构思中	2021-01-23 11:16:46 +08:00
suguo.yao	c92e62ab16	引入logrus	2021-01-23 10:37:04 +08:00
suguo.yao	dd25e9027a	引入consul	2021-01-23 10:33:03 +08:00