initial import

example/graceful/dns/api/Dockerfile

@@ -0,0 +1,26 @@
+FROM golang:1.13 AS builder
+
+ENV CGO_ENABLED 0
+ENV GOOS linux
+
+RUN apt-get update
+RUN apt-get install -y apt-utils upx
+
+WORKDIR $GOPATH/src/zero
+COPY . .
+RUN go build -ldflags="-s -w" -o /app/graceful example/graceful/dns/api/graceful.go
+RUN upx /app/graceful
+
+
+FROM alpine
+
+RUN apk update --no-cache
+RUN apk add --no-cache ca-certificates
+RUN apk add --no-cache tzdata
+ENV TZ Asia/Shanghai
+
+WORKDIR /app
+COPY --from=builder /app/graceful /app/graceful
+COPY example/graceful/dns/api/etc/graceful-api.json /app/etc/config.json
+
+CMD ["./graceful", "-f", "etc/config.json"]

example/graceful/dns/api/Makefile

@@ -0,0 +1,11 @@
+version := v$(shell /bin/date "+%y%m%d%H%M%S")
+
+build:
+	docker pull alpine
+	cd $(GOPATH)/src/zero && docker build -t registry.cn-hangzhou.aliyuncs.com/xapp/graceful:$(version) . -f example/graceful/dns/api/Dockerfile
+
+push: build
+	docker push registry.cn-hangzhou.aliyuncs.com/xapp/graceful:$(version)
+
+deploy: push
+	kubectl -n kevin set image deployment/graceful-deployment graceful=registry-vpc.cn-hangzhou.aliyuncs.com/xapp/graceful:$(version)

example/graceful/dns/api/config/config.go

@@ -0,0 +1,11 @@
+package config
+
+import (
+	"zero/ngin"
+	"zero/rpcx"
+)
+
+type Config struct {
+	ngin.NgConf
+	Rpc rpcx.RpcClientConf
+}

example/graceful/dns/api/etc/graceful-api.json

@@ -0,0 +1,9 @@
+{
+    "Name": "graceful-api",
+    "Host": "0.0.0.0",
+    "Port": 8888,
+    "MaxConns": 1000000,
+    "Rpc": {
+        "Server": "dns:///gracefulrpc:3456"
+    }
+}

example/graceful/dns/api/graceful.api

@@ -0,0 +1,11 @@
+type Response {
+    Host string `json:"host"`
+    Time int64 `json:"time"`
+}
+
+service graceful-api {
+    @server(
+        handler: GracefulHandler
+    )
+    get /api/graceful() returns(Response)
+}

example/graceful/dns/api/graceful.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	"flag"
+
+	"zero/core/conf"
+	"zero/example/graceful/dns/api/config"
+	"zero/example/graceful/dns/api/handler"
+	"zero/example/graceful/dns/api/svc"
+	"zero/ngin"
+	"zero/rpcx"
+)
+
+var configFile = flag.String("f", "etc/graceful-api.json", "the config file")
+
+func main() {
+	flag.Parse()
+
+	var c config.Config
+	conf.MustLoad(*configFile, &c)
+
+	client := rpcx.MustNewClient(c.Rpc)
+	ctx := &svc.ServiceContext{
+		Client: client,
+	}
+
+	engine := ngin.MustNewEngine(c.NgConf)
+	defer engine.Stop()
+
+	handler.RegisterHandlers(engine, ctx)
+	engine.Start()
+}

example/graceful/dns/api/graceful.yaml

@@ -0,0 +1,42 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: graceful
+  namespace: kevin
+spec:
+  selector:
+    app: graceful
+  type: ClusterIP
+  ports:
+    - name: graceful-port
+      port: 3333
+      targetPort: 8888
+
+---
+
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: graceful-deployment
+  namespace: kevin
+  labels:
+    app: graceful
+spec:
+  replicas: 3
+  selector:
+    matchLabels:
+      app: graceful
+  template:
+    metadata:
+      labels:
+        app: graceful
+    spec:
+      containers:
+        - name: graceful
+          image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/graceful:v191022133857
+          imagePullPolicy: Always
+          ports:
+            - containerPort: 8888
+      imagePullSecrets:
+        - name: aliyun
+

example/graceful/dns/api/handler/gracefulhandler.go

@@ -0,0 +1,49 @@
+package handler
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"os"
+	"time"
+
+	"zero/core/executors"
+	"zero/core/httpx"
+	"zero/core/logx"
+	"zero/example/graceful/dns/api/svc"
+	"zero/example/graceful/dns/api/types"
+	"zero/example/graceful/dns/rpc/graceful"
+)
+
+func gracefulHandler(ctx *svc.ServiceContext) http.HandlerFunc {
+	logger := executors.NewLessExecutor(time.Second)
+	return func(w http.ResponseWriter, r *http.Request) {
+		var resp types.Response
+
+		conn, ok := ctx.Client.Next()
+		if !ok {
+			http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+			return
+		}
+
+		host, err := os.Hostname()
+		if err != nil {
+			http.Error(w, http.StatusText(http.StatusNotImplemented), http.StatusNotImplemented)
+			return
+		}
+
+		client := graceful.NewGraceServiceClient(conn)
+		rp, err := client.Grace(context.Background(), &graceful.Request{From: host})
+		if err != nil {
+			logx.Error(err)
+			http.Error(w, http.StatusText(http.StatusBadGateway), http.StatusBadGateway)
+			return
+		}
+
+		resp.Host = rp.Host
+		logger.DoOrDiscard(func() {
+			fmt.Printf("%s from host: %s\n", time.Now().Format("15:04:05"), rp.Host)
+		})
+		httpx.OkJson(w, resp)
+	}
+}

example/graceful/dns/api/handler/routes.go

@@ -0,0 +1,19 @@
+// DO NOT EDIT, generated by goctl
+package handler
+
+import (
+	"net/http"
+
+	"zero/example/graceful/dns/api/svc"
+	"zero/ngin"
+)
+
+func RegisterHandlers(engine *ngin.Engine, ctx *svc.ServiceContext) {
+	engine.AddRoutes([]ngin.Route{
+		{
+			Method:  http.MethodGet,
+			Path:    "/api/graceful",
+			Handler: gracefulHandler(ctx),
+		},
+	})
+}

example/graceful/dns/api/svc/servicecontext.go

@@ -0,0 +1,7 @@
+package svc
+
+import "zero/rpcx"
+
+type ServiceContext struct {
+	Client *rpcx.RpcClient
+}

example/graceful/dns/api/types/types.go

@@ -0,0 +1,7 @@
+// DO NOT EDIT, generated by goctl
+package types
+
+type Response struct {
+	Host string `json:"host"`
+	Time int64  `json:"time"`
+}

example/graceful/dns/rpc/Dockerfile

@@ -0,0 +1,22 @@
+FROM golang:1.13 AS builder
+
+ENV CGO_ENABLED 0
+ENV GOOS linux
+
+WORKDIR $GOPATH/src/zero
+COPY . .
+RUN go build -ldflags="-s -w" -o /app/gracefulrpc example/graceful/dns/rpc/gracefulrpc.go
+
+
+FROM alpine
+
+RUN apk update --no-cache
+RUN apk add --no-cache ca-certificates
+RUN apk add --no-cache tzdata
+ENV TZ Asia/Shanghai
+
+WORKDIR /app
+COPY --from=builder /app/gracefulrpc /app/gracefulrpc
+COPY example/graceful/dns/rpc/etc/config.json /app/etc/config.json
+
+CMD ["./gracefulrpc", "-f", "etc/config.json"]

example/graceful/dns/rpc/Makefile

@@ -0,0 +1,11 @@
+version := v$(shell /bin/date "+%y%m%d%H%M%S")
+
+build:
+	docker pull alpine
+	cd $(GOPATH)/src/zero && docker build -t registry.cn-hangzhou.aliyuncs.com/xapp/gracefulrpc:$(version) . -f example/graceful/dns/rpc/Dockerfile
+
+push: build
+	docker push registry.cn-hangzhou.aliyuncs.com/xapp/gracefulrpc:$(version)
+
+deploy: push
+	kubectl -n kevin set image deployment/gracefulrpc-deployment gracefulrpc=registry-vpc.cn-hangzhou.aliyuncs.com/xapp/gracefulrpc:$(version)

example/graceful/dns/rpc/etc/config.json

@@ -0,0 +1,4 @@
+{
+    "Name": "rpc.grace",
+    "ListenOn": "0.0.0.0:3456"
+}

example/graceful/dns/rpc/graceful.proto

@@ -0,0 +1,15 @@
+syntax = "proto3";
+
+package graceful;
+
+message Request {
+    string from = 1;
+}
+
+message Response {
+    string host = 2;
+}
+
+service GraceService {
+    rpc grace(Request) returns(Response);
+}

example/graceful/dns/rpc/graceful/graceful.pb.go

@@ -0,0 +1,159 @@
+// Code generated by protoc-gen-go.
+// source: graceful.proto
+// DO NOT EDIT!
+
+/*
+Package graceful is a generated protocol buffer package.
+
+It is generated from these files:
+	graceful.proto
+
+It has these top-level messages:
+	Request
+	Response
+*/
+package graceful
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+import (
+	context "golang.org/x/net/context"
+	grpc "google.golang.org/grpc"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+type Request struct {
+	From string `protobuf:"bytes,1,opt,name=from" json:"from,omitempty"`
+}
+
+func (m *Request) Reset()                    { *m = Request{} }
+func (m *Request) String() string            { return proto.CompactTextString(m) }
+func (*Request) ProtoMessage()               {}
+func (*Request) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
+
+func (m *Request) GetFrom() string {
+	if m != nil {
+		return m.From
+	}
+	return ""
+}
+
+type Response struct {
+	Host string `protobuf:"bytes,2,opt,name=host" json:"host,omitempty"`
+}
+
+func (m *Response) Reset()                    { *m = Response{} }
+func (m *Response) String() string            { return proto.CompactTextString(m) }
+func (*Response) ProtoMessage()               {}
+func (*Response) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+
+func (m *Response) GetHost() string {
+	if m != nil {
+		return m.Host
+	}
+	return ""
+}
+
+func init() {
+	proto.RegisterType((*Request)(nil), "graceful.Request")
+	proto.RegisterType((*Response)(nil), "graceful.Response")
+}
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ context.Context
+var _ grpc.ClientConn
+
+// 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.SupportPackageIsVersion4
+
+// Client API for GraceService service
+
+type GraceServiceClient interface {
+	Grace(ctx context.Context, in *Request, opts ...grpc.CallOption) (*Response, error)
+}
+
+type graceServiceClient struct {
+	cc *grpc.ClientConn
+}
+
+func NewGraceServiceClient(cc *grpc.ClientConn) GraceServiceClient {
+	return &graceServiceClient{cc}
+}
+
+func (c *graceServiceClient) Grace(ctx context.Context, in *Request, opts ...grpc.CallOption) (*Response, error) {
+	out := new(Response)
+	err := grpc.Invoke(ctx, "/graceful.GraceService/grace", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// Server API for GraceService service
+
+type GraceServiceServer interface {
+	Grace(context.Context, *Request) (*Response, error)
+}
+
+func RegisterGraceServiceServer(s *grpc.Server, srv GraceServiceServer) {
+	s.RegisterService(&_GraceService_serviceDesc, srv)
+}
+
+func _GraceService_Grace_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(Request)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(GraceServiceServer).Grace(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/graceful.GraceService/Grace",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(GraceServiceServer).Grace(ctx, req.(*Request))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+var _GraceService_serviceDesc = grpc.ServiceDesc{
+	ServiceName: "graceful.GraceService",
+	HandlerType: (*GraceServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "grace",
+			Handler:    _GraceService_Grace_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "graceful.proto",
+}
+
+func init() { proto.RegisterFile("graceful.proto", fileDescriptor0) }
+
+var fileDescriptor0 = []byte{
+	// 134 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0xe2, 0xe2, 0x4b, 0x2f, 0x4a, 0x4c,
+	0x4e, 0x4d, 0x2b, 0xcd, 0xd1, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0xe2, 0x80, 0xf1, 0x95, 0x64,
+	0xb9, 0xd8, 0x83, 0x52, 0x0b, 0x4b, 0x53, 0x8b, 0x4b, 0x84, 0x84, 0xb8, 0x58, 0xd2, 0x8a, 0xf2,
+	0x73, 0x25, 0x18, 0x15, 0x18, 0x35, 0x38, 0x83, 0xc0, 0x6c, 0x25, 0x39, 0x2e, 0x8e, 0xa0, 0xd4,
+	0xe2, 0x82, 0xfc, 0xbc, 0xe2, 0x54, 0x90, 0x7c, 0x46, 0x7e, 0x71, 0x89, 0x04, 0x13, 0x44, 0x1e,
+	0xc4, 0x36, 0xb2, 0xe3, 0xe2, 0x71, 0x07, 0x19, 0x15, 0x9c, 0x5a, 0x54, 0x96, 0x99, 0x9c, 0x2a,
+	0xa4, 0xc7, 0xc5, 0x0a, 0x36, 0x5a, 0x48, 0x50, 0x0f, 0x6e, 0x25, 0xd4, 0x7c, 0x29, 0x21, 0x64,
+	0x21, 0x88, 0x99, 0x49, 0x6c, 0x60, 0xf7, 0x18, 0x03, 0x02, 0x00, 0x00, 0xff, 0xff, 0x81, 0x87,
+	0xc8, 0xc1, 0xa1, 0x00, 0x00, 0x00,
+}

example/graceful/dns/rpc/gracefulrpc.go

@@ -0,0 +1,51 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"os"
+	"time"
+
+	"zero/core/conf"
+	"zero/example/graceful/dns/rpc/graceful"
+	"zero/rpcx"
+
+	"google.golang.org/grpc"
+)
+
+var configFile = flag.String("f", "etc/config.json", "the config file")
+
+type GracefulServer struct{}
+
+func NewGracefulServer() *GracefulServer {
+	return &GracefulServer{}
+}
+
+func (gs *GracefulServer) Grace(ctx context.Context, req *graceful.Request) (*graceful.Response, error) {
+	fmt.Println("=>", req)
+
+	time.Sleep(time.Millisecond * 10)
+
+	hostname, err := os.Hostname()
+	if err != nil {
+		return nil, err
+	}
+
+	return &graceful.Response{
+		Host: hostname,
+	}, nil
+}
+
+func main() {
+	flag.Parse()
+
+	var c rpcx.RpcServerConf
+	conf.MustLoad(*configFile, &c)
+
+	server := rpcx.MustNewServer(c, func(grpcServer *grpc.Server) {
+		graceful.RegisterGraceServiceServer(grpcServer, NewGracefulServer())
+	})
+	defer server.Stop()
+	server.Start()
+}

example/graceful/dns/rpc/gracefulrpc.yaml

@@ -0,0 +1,46 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: gracefulrpc
+  namespace: kevin
+spec:
+  selector:
+    app: gracefulrpc
+  type: ClusterIP
+  clusterIP: None
+  ports:
+    - name: gracefulrpc-port
+      port: 3456
+
+---
+
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: gracefulrpc-deployment
+  namespace: kevin
+  labels:
+    app: gracefulrpc
+spec:
+  replicas: 3
+  selector:
+    matchLabels:
+      app: gracefulrpc
+  template:
+    metadata:
+      labels:
+        app: gracefulrpc
+    spec:
+      containers:
+        - name: gracefulrpc
+          image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/gracefulrpc:v191022143425
+          imagePullPolicy: Always
+          ports:
+            - containerPort: 3456
+          env:
+            - name: POD_IP
+              valueFrom:
+                fieldRef:
+                  fieldPath: status.podIP
+      imagePullSecrets:
+        - name: aliyun

example/graceful/etcd/api/Dockerfile

@@ -0,0 +1,28 @@
+FROM golang:alpine AS builder
+
+LABEL stage=gobuilder
+
+ENV CGO_ENABLED 0
+ENV GOOS linux
+
+RUN apk update
+RUN apk add upx
+
+WORKDIR $GOPATH/src/zero
+COPY . .
+RUN go build -ldflags="-s -w" -o /app/graceful example/graceful/etcd/api/graceful.go
+RUN upx /app/graceful
+
+
+FROM alpine
+
+RUN apk update --no-cache
+RUN apk add --no-cache ca-certificates
+RUN apk add --no-cache tzdata
+ENV TZ Asia/Shanghai
+
+WORKDIR /app
+COPY --from=builder /app/graceful /app/graceful
+COPY example/graceful/etcd/api/etc/graceful-api.json /app/etc/config.json
+
+CMD ["./graceful", "-f", "etc/config.json"]

example/graceful/etcd/api/Makefile

@@ -0,0 +1,13 @@
+version := v$(shell /bin/date "+%y%m%d%H%M%S")
+
+build:
+	docker pull alpine
+	docker pull golang:alpine
+	cd $(GOPATH)/src/zero && docker build -t registry.cn-hangzhou.aliyuncs.com/xapp/graceful:$(version) . -f example/graceful/etcd/api/Dockerfile
+	docker image prune --filter label=stage=gobuilder -f
+
+push: build
+	docker push registry.cn-hangzhou.aliyuncs.com/xapp/graceful:$(version)
+
+deploy: push
+	kubectl -n kevin set image deployment/graceful-deployment graceful=registry-vpc.cn-hangzhou.aliyuncs.com/xapp/graceful:$(version)

example/graceful/etcd/api/config/config.go

@@ -0,0 +1,11 @@
+package config
+
+import (
+	"zero/ngin"
+	"zero/rpcx"
+)
+
+type Config struct {
+	ngin.NgConf
+	Rpc rpcx.RpcClientConf
+}

example/graceful/etcd/api/etc/graceful-api.json

@@ -0,0 +1,12 @@
+{
+    "Name": "graceful-api",
+    "Host": "0.0.0.0",
+    "Port": 8888,
+    "MaxConns": 1000000,
+    "Rpc": {
+        "Etcd": {
+            "Hosts": ["etcd.discov:2379"],
+            "Key": "rpcx"
+        }
+    }
+}

example/graceful/etcd/api/graceful.api

@@ -0,0 +1,11 @@
+type Response {
+    Host string `json:"host"`
+    Time int64 `json:"time"`
+}
+
+service graceful-api {
+    @server(
+        handler: GracefulHandler
+    )
+    get /api/graceful() returns(Response)
+}

example/graceful/etcd/api/graceful.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	"flag"
+
+	"zero/core/conf"
+	"zero/example/graceful/etcd/api/config"
+	"zero/example/graceful/etcd/api/handler"
+	"zero/example/graceful/etcd/api/svc"
+	"zero/ngin"
+	"zero/rpcx"
+)
+
+var configFile = flag.String("f", "etc/graceful-api.json", "the config file")
+
+func main() {
+	flag.Parse()
+
+	var c config.Config
+	conf.MustLoad(*configFile, &c)
+
+	client := rpcx.MustNewClient(c.Rpc)
+	ctx := &svc.ServiceContext{
+		Client: client,
+	}
+
+	engine := ngin.MustNewEngine(c.NgConf)
+	defer engine.Stop()
+
+	handler.RegisterHandlers(engine, ctx)
+	engine.Start()
+}

example/graceful/etcd/api/graceful.yaml

@@ -0,0 +1,42 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: graceful
+  namespace: kevin
+spec:
+  selector:
+    app: graceful
+  type: ClusterIP
+  ports:
+    - name: graceful-port
+      port: 3333
+      targetPort: 8888
+
+---
+
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: graceful-deployment
+  namespace: kevin
+  labels:
+    app: graceful
+spec:
+  replicas: 3
+  selector:
+    matchLabels:
+      app: graceful
+  template:
+    metadata:
+      labels:
+        app: graceful
+    spec:
+      containers:
+        - name: graceful
+          image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/graceful:v191031145905
+          imagePullPolicy: Always
+          ports:
+            - containerPort: 8888
+      imagePullSecrets:
+        - name: aliyun
+

example/graceful/etcd/api/handler/gracefulhandler.go

@@ -0,0 +1,49 @@
+package handler
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"os"
+	"time"
+
+	"zero/core/executors"
+	"zero/core/httpx"
+	"zero/core/logx"
+	"zero/example/graceful/etcd/api/svc"
+	"zero/example/graceful/etcd/api/types"
+	"zero/example/graceful/etcd/rpc/graceful"
+)
+
+func gracefulHandler(ctx *svc.ServiceContext) http.HandlerFunc {
+	logger := executors.NewLessExecutor(time.Second)
+	return func(w http.ResponseWriter, r *http.Request) {
+		var resp types.Response
+
+		conn, ok := ctx.Client.Next()
+		if !ok {
+			http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+			return
+		}
+
+		host, err := os.Hostname()
+		if err != nil {
+			http.Error(w, http.StatusText(http.StatusNotImplemented), http.StatusNotImplemented)
+			return
+		}
+
+		client := graceful.NewGraceServiceClient(conn)
+		rp, err := client.Grace(context.Background(), &graceful.Request{From: host})
+		if err != nil {
+			logx.Error(err)
+			http.Error(w, http.StatusText(http.StatusBadGateway), http.StatusBadGateway)
+			return
+		}
+
+		resp.Host = rp.Host
+		logger.DoOrDiscard(func() {
+			fmt.Printf("%s from host: %s\n", time.Now().Format("15:04:05"), rp.Host)
+		})
+		httpx.OkJson(w, resp)
+	}
+}

example/graceful/etcd/api/handler/routes.go

@@ -0,0 +1,19 @@
+// DO NOT EDIT, generated by goctl
+package handler
+
+import (
+	"net/http"
+
+	"zero/example/graceful/etcd/api/svc"
+	"zero/ngin"
+)
+
+func RegisterHandlers(engine *ngin.Engine, ctx *svc.ServiceContext) {
+	engine.AddRoutes([]ngin.Route{
+		{
+			Method:  http.MethodGet,
+			Path:    "/api/graceful",
+			Handler: gracefulHandler(ctx),
+		},
+	})
+}

example/graceful/etcd/api/svc/servicecontext.go

@@ -0,0 +1,7 @@
+package svc
+
+import "zero/rpcx"
+
+type ServiceContext struct {
+	Client *rpcx.RpcClient
+}

example/graceful/etcd/api/types/types.go

@@ -0,0 +1,7 @@
+// DO NOT EDIT, generated by goctl
+package types
+
+type Response struct {
+	Host string `json:"host"`
+	Time int64  `json:"time"`
+}

example/graceful/etcd/discov/discov-namespace.yaml

@@ -0,0 +1,4 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: discov

example/graceful/etcd/discov/etcd.yaml

@@ -0,0 +1,319 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: etcd
+  namespace: discov
+spec:
+  ports:
+  - name: etcd-port
+    port: 2379
+    protocol: TCP
+    targetPort: 2379
+  selector:
+    app: etcd
+
+---
+
+apiVersion: v1
+kind: Pod
+metadata:
+  labels:
+    app: etcd
+    etcd_node: etcd0
+  name: etcd0
+  namespace: discov
+spec:
+  containers:
+  - command:
+    - /usr/local/bin/etcd
+    - --name
+    - etcd0
+    - --initial-advertise-peer-urls
+    - http://etcd0:2380
+    - --listen-peer-urls
+    - http://0.0.0.0:2380
+    - --listen-client-urls
+    - http://0.0.0.0:2379
+    - --advertise-client-urls
+    - http://etcd0:2379
+    - --initial-cluster
+    - etcd0=http://etcd0:2380,etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380,etcd4=http://etcd4:2380
+    - --initial-cluster-state
+    - new
+    image: quay.io/coreos/etcd:latest
+    name: etcd0
+    ports:
+    - containerPort: 2379
+      name: client
+      protocol: TCP
+    - containerPort: 2380
+      name: server
+      protocol: TCP
+  restartPolicy: Always
+
+---
+
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    etcd_node: etcd0
+  name: etcd0
+  namespace: discov
+spec:
+  ports:
+  - name: client
+    port: 2379
+    protocol: TCP
+    targetPort: 2379
+  - name: server
+    port: 2380
+    protocol: TCP
+    targetPort: 2380
+  selector:
+    etcd_node: etcd0
+
+---
+
+apiVersion: v1
+kind: Pod
+metadata:
+  labels:
+    app: etcd
+    etcd_node: etcd1
+  name: etcd1
+  namespace: discov
+spec:
+  containers:
+  - command:
+    - /usr/local/bin/etcd
+    - --name
+    - etcd1
+    - --initial-advertise-peer-urls
+    - http://etcd1:2380
+    - --listen-peer-urls
+    - http://0.0.0.0:2380
+    - --listen-client-urls
+    - http://0.0.0.0:2379
+    - --advertise-client-urls
+    - http://etcd1:2379
+    - --initial-cluster
+    - etcd0=http://etcd0:2380,etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380,etcd4=http://etcd4:2380
+    - --initial-cluster-state
+    - new
+    image: quay.io/coreos/etcd:latest
+    name: etcd1
+    ports:
+    - containerPort: 2379
+      name: client
+      protocol: TCP
+    - containerPort: 2380
+      name: server
+      protocol: TCP
+  restartPolicy: Always
+
+---
+
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    etcd_node: etcd1
+  name: etcd1
+  namespace: discov
+spec:
+  ports:
+  - name: client
+    port: 2379
+    protocol: TCP
+    targetPort: 2379
+  - name: server
+    port: 2380
+    protocol: TCP
+    targetPort: 2380
+  selector:
+    etcd_node: etcd1
+
+---
+
+apiVersion: v1
+kind: Pod
+metadata:
+  labels:
+    app: etcd
+    etcd_node: etcd2
+  name: etcd2
+  namespace: discov
+spec:
+  containers:
+  - command:
+    - /usr/local/bin/etcd
+    - --name
+    - etcd2
+    - --initial-advertise-peer-urls
+    - http://etcd2:2380
+    - --listen-peer-urls
+    - http://0.0.0.0:2380
+    - --listen-client-urls
+    - http://0.0.0.0:2379
+    - --advertise-client-urls
+    - http://etcd2:2379
+    - --initial-cluster
+    - etcd0=http://etcd0:2380,etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380,etcd4=http://etcd4:2380
+    - --initial-cluster-state
+    - new
+    image: quay.io/coreos/etcd:latest
+    name: etcd2
+    ports:
+    - containerPort: 2379
+      name: client
+      protocol: TCP
+    - containerPort: 2380
+      name: server
+      protocol: TCP
+  restartPolicy: Always
+
+---
+
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    etcd_node: etcd2
+  name: etcd2
+  namespace: discov
+spec:
+  ports:
+  - name: client
+    port: 2379
+    protocol: TCP
+    targetPort: 2379
+  - name: server
+    port: 2380
+    protocol: TCP
+    targetPort: 2380
+  selector:
+    etcd_node: etcd2
+
+---
+
+apiVersion: v1
+kind: Pod
+metadata:
+  labels:
+    app: etcd
+    etcd_node: etcd3
+  name: etcd3
+  namespace: discov
+spec:
+  containers:
+  - command:
+    - /usr/local/bin/etcd
+    - --name
+    - etcd3
+    - --initial-advertise-peer-urls
+    - http://etcd3:2380
+    - --listen-peer-urls
+    - http://0.0.0.0:2380
+    - --listen-client-urls
+    - http://0.0.0.0:2379
+    - --advertise-client-urls
+    - http://etcd3:2379
+    - --initial-cluster
+    - etcd0=http://etcd0:2380,etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380,etcd4=http://etcd4:2380
+    - --initial-cluster-state
+    - new
+    image: quay.io/coreos/etcd:latest
+    name: etcd3
+    ports:
+      - containerPort: 2379
+        name: client
+        protocol: TCP
+      - containerPort: 2380
+        name: server
+        protocol: TCP
+  restartPolicy: Always
+
+---
+
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    etcd_node: etcd3
+  name: etcd3
+  namespace: discov
+spec:
+  ports:
+    - name: client
+      port: 2379
+      protocol: TCP
+      targetPort: 2379
+    - name: server
+      port: 2380
+      protocol: TCP
+      targetPort: 2380
+  selector:
+    etcd_node: etcd3
+
+---
+
+apiVersion: v1
+kind: Pod
+metadata:
+  labels:
+    app: etcd
+    etcd_node: etcd4
+  name: etcd4
+  namespace: discov
+spec:
+  containers:
+  - command:
+    - /usr/local/bin/etcd
+    - --name
+    - etcd4
+    - --initial-advertise-peer-urls
+    - http://etcd4:2380
+    - --listen-peer-urls
+    - http://0.0.0.0:2380
+    - --listen-client-urls
+    - http://0.0.0.0:2379
+    - --advertise-client-urls
+    - http://etcd4:2379
+    - --initial-cluster
+    - etcd0=http://etcd0:2380,etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380,etcd4=http://etcd4:2380
+    - --initial-cluster-state
+    - new
+    image: quay.io/coreos/etcd:latest
+    name: etcd4
+    ports:
+      - containerPort: 2379
+        name: client
+        protocol: TCP
+      - containerPort: 2380
+        name: server
+        protocol: TCP
+  restartPolicy: Always
+
+---
+
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    etcd_node: etcd4
+  name: etcd4
+  namespace: discov
+spec:
+  ports:
+    - name: client
+      port: 2379
+      protocol: TCP
+      targetPort: 2379
+    - name: server
+      port: 2380
+      protocol: TCP
+      targetPort: 2380
+  selector:
+    etcd_node: etcd4
+

example/graceful/etcd/rpc/Dockerfile

@@ -0,0 +1,24 @@
+FROM golang:alpine AS builder
+
+LABEL stage=gobuilder
+
+ENV CGO_ENABLED 0
+ENV GOOS linux
+
+WORKDIR $GOPATH/src/zero
+COPY . .
+RUN go build -ldflags="-s -w" -o /app/gracefulrpc example/graceful/etcd/rpc/gracefulrpc.go
+
+
+FROM alpine
+
+RUN apk update --no-cache
+RUN apk add --no-cache ca-certificates
+RUN apk add --no-cache tzdata
+ENV TZ Asia/Shanghai
+
+WORKDIR /app
+COPY --from=builder /app/gracefulrpc /app/gracefulrpc
+COPY example/graceful/etcd/rpc/etc/graceful-rpc.json /app/etc/config.json
+
+CMD ["./gracefulrpc", "-f", "etc/config.json"]

example/graceful/etcd/rpc/Makefile

@@ -0,0 +1,13 @@
+version := v$(shell /bin/date "+%y%m%d%H%M%S")
+
+build:
+	docker pull alpine
+	docker pull golang:alpine
+	cd $(GOPATH)/src/zero && docker build -t registry.cn-hangzhou.aliyuncs.com/xapp/gracefulrpc:$(version) . -f example/graceful/etcd/rpc/Dockerfile
+	docker image prune --filter label=stage=gobuilder -f
+
+push: build
+	docker push registry.cn-hangzhou.aliyuncs.com/xapp/gracefulrpc:$(version)
+
+deploy: push
+	kubectl -n kevin set image deployment/gracefulrpc-deployment gracefulrpc=registry-vpc.cn-hangzhou.aliyuncs.com/xapp/gracefulrpc:$(version)

example/graceful/etcd/rpc/etc/graceful-rpc.json

@@ -0,0 +1,8 @@
+{
+    "Name": "rpc.grace",
+    "ListenOn": "0.0.0.0:3456",
+    "Etcd": {
+        "Hosts": ["etcd.discov:2379"],
+        "Key": "rpcx"
+    }
+}

example/graceful/etcd/rpc/graceful.proto

@@ -0,0 +1,15 @@
+syntax = "proto3";
+
+package graceful;
+
+message Request {
+    string from = 1;
+}
+
+message Response {
+    string host = 2;
+}
+
+service GraceService {
+    rpc grace(Request) returns(Response);
+}

example/graceful/etcd/rpc/graceful/graceful.pb.go

@@ -0,0 +1,159 @@
+// Code generated by protoc-gen-go.
+// source: graceful.proto
+// DO NOT EDIT!
+
+/*
+Package graceful is a generated protocol buffer package.
+
+It is generated from these files:
+	graceful.proto
+
+It has these top-level messages:
+	Request
+	Response
+*/
+package graceful
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+import (
+	context "golang.org/x/net/context"
+	grpc "google.golang.org/grpc"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+type Request struct {
+	From string `protobuf:"bytes,1,opt,name=from" json:"from,omitempty"`
+}
+
+func (m *Request) Reset()                    { *m = Request{} }
+func (m *Request) String() string            { return proto.CompactTextString(m) }
+func (*Request) ProtoMessage()               {}
+func (*Request) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
+
+func (m *Request) GetFrom() string {
+	if m != nil {
+		return m.From
+	}
+	return ""
+}
+
+type Response struct {
+	Host string `protobuf:"bytes,2,opt,name=host" json:"host,omitempty"`
+}
+
+func (m *Response) Reset()                    { *m = Response{} }
+func (m *Response) String() string            { return proto.CompactTextString(m) }
+func (*Response) ProtoMessage()               {}
+func (*Response) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+
+func (m *Response) GetHost() string {
+	if m != nil {
+		return m.Host
+	}
+	return ""
+}
+
+func init() {
+	proto.RegisterType((*Request)(nil), "graceful.Request")
+	proto.RegisterType((*Response)(nil), "graceful.Response")
+}
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ context.Context
+var _ grpc.ClientConn
+
+// 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.SupportPackageIsVersion4
+
+// Client API for GraceService service
+
+type GraceServiceClient interface {
+	Grace(ctx context.Context, in *Request, opts ...grpc.CallOption) (*Response, error)
+}
+
+type graceServiceClient struct {
+	cc *grpc.ClientConn
+}
+
+func NewGraceServiceClient(cc *grpc.ClientConn) GraceServiceClient {
+	return &graceServiceClient{cc}
+}
+
+func (c *graceServiceClient) Grace(ctx context.Context, in *Request, opts ...grpc.CallOption) (*Response, error) {
+	out := new(Response)
+	err := grpc.Invoke(ctx, "/graceful.GraceService/grace", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// Server API for GraceService service
+
+type GraceServiceServer interface {
+	Grace(context.Context, *Request) (*Response, error)
+}
+
+func RegisterGraceServiceServer(s *grpc.Server, srv GraceServiceServer) {
+	s.RegisterService(&_GraceService_serviceDesc, srv)
+}
+
+func _GraceService_Grace_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(Request)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(GraceServiceServer).Grace(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/graceful.GraceService/Grace",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(GraceServiceServer).Grace(ctx, req.(*Request))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+var _GraceService_serviceDesc = grpc.ServiceDesc{
+	ServiceName: "graceful.GraceService",
+	HandlerType: (*GraceServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "grace",
+			Handler:    _GraceService_Grace_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "graceful.proto",
+}
+
+func init() { proto.RegisterFile("graceful.proto", fileDescriptor0) }
+
+var fileDescriptor0 = []byte{
+	// 134 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0xe2, 0xe2, 0x4b, 0x2f, 0x4a, 0x4c,
+	0x4e, 0x4d, 0x2b, 0xcd, 0xd1, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0xe2, 0x80, 0xf1, 0x95, 0x64,
+	0xb9, 0xd8, 0x83, 0x52, 0x0b, 0x4b, 0x53, 0x8b, 0x4b, 0x84, 0x84, 0xb8, 0x58, 0xd2, 0x8a, 0xf2,
+	0x73, 0x25, 0x18, 0x15, 0x18, 0x35, 0x38, 0x83, 0xc0, 0x6c, 0x25, 0x39, 0x2e, 0x8e, 0xa0, 0xd4,
+	0xe2, 0x82, 0xfc, 0xbc, 0xe2, 0x54, 0x90, 0x7c, 0x46, 0x7e, 0x71, 0x89, 0x04, 0x13, 0x44, 0x1e,
+	0xc4, 0x36, 0xb2, 0xe3, 0xe2, 0x71, 0x07, 0x19, 0x15, 0x9c, 0x5a, 0x54, 0x96, 0x99, 0x9c, 0x2a,
+	0xa4, 0xc7, 0xc5, 0x0a, 0x36, 0x5a, 0x48, 0x50, 0x0f, 0x6e, 0x25, 0xd4, 0x7c, 0x29, 0x21, 0x64,
+	0x21, 0x88, 0x99, 0x49, 0x6c, 0x60, 0xf7, 0x18, 0x03, 0x02, 0x00, 0x00, 0xff, 0xff, 0x81, 0x87,
+	0xc8, 0xc1, 0xa1, 0x00, 0x00, 0x00,
+}

example/graceful/etcd/rpc/gracefulrpc-env.yaml

@@ -0,0 +1,30 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: gracefulrpc-deployment
+  namespace: kevin
+  labels:
+    app: gracefulrpc
+spec:
+  replicas: 9
+  selector:
+    matchLabels:
+      app: gracefulrpc
+  template:
+    metadata:
+      labels:
+        app: gracefulrpc
+    spec:
+      containers:
+        - name: gracefulrpc
+          image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/gracefulrpc:v191031144304
+          imagePullPolicy: Always
+          ports:
+            - containerPort: 3456
+          env:
+            - name: POD_IP
+              valueFrom:
+                fieldRef:
+                  fieldPath: status.podIP
+      imagePullSecrets:
+        - name: aliyun

example/graceful/etcd/rpc/gracefulrpc-headless.yaml

@@ -0,0 +1,41 @@
+ apiVersion: v1
+ kind: Service
+ metadata:
+   name: gracefulrpc
+   namespace: kevin
+ spec:
+   selector:
+     app: gracefulrpc
+   type: ClusterIP
+   clusterIP: None
+   ports:
+     - name: gracefulrpc-port
+       port: 3456
+
+ ---
+
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: gracefulrpc-deployment
+  namespace: kevin
+  labels:
+    app: gracefulrpc
+spec:
+  replicas: 9
+  selector:
+    matchLabels:
+      app: gracefulrpc
+  template:
+    metadata:
+      labels:
+        app: gracefulrpc
+    spec:
+      containers:
+        - name: gracefulrpc
+          image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/gracefulrpc:v191031144304
+          imagePullPolicy: Always
+          ports:
+            - containerPort: 3456
+      imagePullSecrets:
+        - name: aliyun

example/graceful/etcd/rpc/gracefulrpc.go

@@ -0,0 +1,51 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"os"
+	"time"
+
+	"zero/core/conf"
+	"zero/example/graceful/etcd/rpc/graceful"
+	"zero/rpcx"
+
+	"google.golang.org/grpc"
+)
+
+var configFile = flag.String("f", "etc/config.json", "the config file")
+
+type GracefulServer struct{}
+
+func NewGracefulServer() *GracefulServer {
+	return &GracefulServer{}
+}
+
+func (gs *GracefulServer) Grace(ctx context.Context, req *graceful.Request) (*graceful.Response, error) {
+	fmt.Println("=>", req)
+
+	time.Sleep(time.Millisecond * 10)
+
+	hostname, err := os.Hostname()
+	if err != nil {
+		return nil, err
+	}
+
+	return &graceful.Response{
+		Host: hostname,
+	}, nil
+}
+
+func main() {
+	flag.Parse()
+
+	var c rpcx.RpcServerConf
+	conf.MustLoad(*configFile, &c)
+
+	server := rpcx.MustNewServer(c, func(grpcServer *grpc.Server) {
+		graceful.RegisterGraceServiceServer(grpcServer, NewGracefulServer())
+	})
+	defer server.Stop()
+	server.Start()
+}

example/graceful/etcd/rpc/gracefulrpc.yaml

@@ -0,0 +1,25 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: gracefulrpc-deployment
+  namespace: kevin
+  labels:
+    app: gracefulrpc
+spec:
+  replicas: 9
+  selector:
+    matchLabels:
+      app: gracefulrpc
+  template:
+    metadata:
+      labels:
+        app: gracefulrpc
+    spec:
+      containers:
+        - name: gracefulrpc
+          image: registry-vpc.cn-hangzhou.aliyuncs.com/xapp/gracefulrpc:v191031144304
+          imagePullPolicy: Always
+          ports:
+            - containerPort: 3456
+      imagePullSecrets:
+        - name: aliyun