refactor:优化xds生成逻辑 & 合并社区 nacosserver 插件 (#1276)

apiserver/apiserver.go

@@ -20,6 +20,7 @@ package apiserver
 import (
 	"context"
 	"fmt"
+	"net/http"
 )
 
 const (
@@ -58,6 +59,16 @@ type Apiserver interface {
 	Restart(option map[string]interface{}, api map[string]APIConfig, errCh chan error) error
 }
 
+type EnrichApiserver interface {
+	Apiserver
+	DebugHandlers() []DebugHandler
+}
+
+type DebugHandler struct {
+	Path    string
+	Handler http.HandlerFunc
+}
+
 var (
 	Slots = make(map[string]Apiserver)
 )

apiserver/eurekaserver/access.go

@@ -436,15 +436,16 @@ func (h *EurekaServer) UpdateStatus(req *restful.Request, rsp *restful.Response)
 		writeHeader(http.StatusOK, rsp)
 		return
 	}
-	code := h.updateStatus(context.Background(), namespace, appId, instId, status, false)
+	ctx := context.WithValue(context.Background(), sourceFromEureka{}, true)
+	code := h.updateStatus(ctx, namespace, appId, instId, status, false)
 	writePolarisStatusCode(req, code)
 	if code == api.ExecuteSuccess || code == api.NoNeedUpdate {
-		eurekalog.Infof("[EUREKA-SERVER]instance (namespace=%s, instId=%s, appId=%s) has been updated successfully",
+		eurekalog.Infof("[EUREKA-SERVER] instance (namespace=%s, instId=%s, appId=%s) has been updated successfully",
 			namespace, instId, appId)
 		writeHeader(http.StatusOK, rsp)
 		return
 	}
-	eurekalog.Errorf("[EUREKA-SERVER]instance ((namespace=%s, instId=%s, appId=%s) has been updated failed, "+
+	eurekalog.Errorf("[EUREKA-SERVER] instance (namespace=%s, instId=%s, appId=%s) has been updated failed, "+
 		"code is %d",
 		namespace, instId, appId, code)
 	if code == api.NotFoundResource {
@@ -480,7 +481,8 @@ func (h *EurekaServer) DeleteStatus(req *restful.Request, rsp *restful.Response)
 		"client: %s,namespace=%s, instId=%s, appId=%s",
 		remoteAddr, namespace, instId, appId)
 
-	code := h.updateStatus(context.Background(), namespace, appId, instId, StatusUp, false)
+	ctx := context.WithValue(context.Background(), sourceFromEureka{}, true)
+	code := h.updateStatus(ctx, namespace, appId, instId, StatusUp, false)
 	writePolarisStatusCode(req, code)
 	if code == api.ExecuteSuccess {
 		eurekalog.Infof("[EUREKA-SERVER]instance status (namespace=%s, instId=%s, appId=%s) "+

apiserver/eurekaserver/access_test.go

@@ -21,15 +21,23 @@ import (
 	"bytes"
 	"context"
 	"encoding/json"
+	"encoding/xml"
 	"fmt"
 	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"reflect"
 	"testing"
 	"time"
 
 	"github.com/emicklei/go-restful/v3"
+	apimodel "github.com/polarismesh/specification/source/go/api/v1/model"
+	"github.com/polarismesh/specification/source/go/api/v1/service_manage"
 	"github.com/stretchr/testify/assert"
+	"google.golang.org/protobuf/types/known/wrapperspb"
 
 	api "github.com/polarismesh/polaris/common/api/v1"
+	"github.com/polarismesh/polaris/common/utils"
 	testsuit "github.com/polarismesh/polaris/test/suit"
 )
 
@@ -38,6 +46,8 @@ func createEurekaServerForTest(
 	eurekaSrv := &EurekaServer{
 		namingServer:      discoverSuit.DiscoverServer(),
 		healthCheckServer: discoverSuit.HealthCheckServer(),
+		originDiscoverSvr: discoverSuit.OriginDiscoverServer(),
+		allowAsyncRegis:   false,
 	}
 	err := eurekaSrv.Initialize(context.Background(), options, nil)
 	if err != nil {
@@ -198,3 +208,200 @@ func TestCreateInstance(t *testing.T) {
 	assert.Nil(t, err)
 	checkInstanceAction(t, deltaAppResp.Applications, appId, instanceId, ActionDeleted)
 }
+
+// Test_EurekaWrite .
+func Test_EurekaWrite(t *testing.T) {
+	discoverSuit := &testsuit.DiscoverTestSuit{}
+	if err := discoverSuit.Initialize(); err != nil {
+		t.Fatal(err)
+	}
+	defer discoverSuit.Destroy()
+
+	options := map[string]interface{}{optionRefreshInterval: 5, optionDeltaExpireInterval: 120}
+	eurekaSrv, err := createEurekaServerForTest(discoverSuit, options)
+	assert.Nil(t, err)
+
+	mockIns := genMockEurekaInstance()
+
+	t.Run("RegisterInstance", func(t *testing.T) {
+		// pretty output must be created and written explicitly
+		output, err := xml.MarshalIndent(mockIns, " ", " ")
+		assert.NoError(t, err)
+
+		var body bytes.Buffer
+		_, err = body.Write([]byte(xml.Header))
+		assert.NoError(t, err)
+		_, err = body.Write(output)
+		assert.NoError(t, err)
+
+		mockReq := httptest.NewRequest("", fmt.Sprintf("http://127.0.0.1:8761/eureka/v2/apps/%s", mockIns.AppName), &body)
+		mockReq.Header.Add(restful.HEADER_Accept, restful.MIME_XML)
+		mockReq.Header.Add(restful.HEADER_ContentType, restful.MIME_XML)
+		mockRsp := newMockResponseWriter()
+
+		restfulReq := restful.NewRequest(mockReq)
+		injectRestfulReqPathParameters(t, restfulReq, map[string]string{
+			ParamAppId: mockIns.AppName,
+		})
+		// 这里是异步注册
+		eurekaSrv.RegisterApplication(restfulReq, restful.NewResponse(mockRsp))
+		assert.Equal(t, http.StatusNoContent, mockRsp.statusCode)
+		assert.Equal(t, restfulReq.Attribute(statusCodeHeader), uint32(apimodel.Code_ExecuteSuccess))
+
+		time.Sleep(5 * time.Second)
+		saveIns, err := eurekaSrv.originDiscoverSvr.Cache().GetStore().GetInstance(mockIns.InstanceId)
+		assert.NoError(t, err)
+		assert.NotNil(t, saveIns)
+	})
+
+	t.Run("UpdateStatus", func(t *testing.T) {
+		t.Run("StatusUnknown", func(t *testing.T) {
+			mockReq := httptest.NewRequest("", fmt.Sprintf("http://127.0.0.1:8761/eureka/v2/apps/%s/%s/status",
+				mockIns.AppName, mockIns.InstanceId), nil)
+			mockReq.PostForm = url.Values{}
+			mockReq.PostForm.Add(ParamValue, StatusUnknown)
+			mockRsp := newMockResponseWriter()
+
+			restfulReq := restful.NewRequest(mockReq)
+			injectRestfulReqPathParameters(t, restfulReq, map[string]string{
+				ParamAppId:  mockIns.AppName,
+				ParamInstId: mockIns.InstanceId,
+			})
+			eurekaSrv.UpdateStatus(restfulReq, restful.NewResponse(mockRsp))
+			assert.Equal(t, http.StatusOK, mockRsp.statusCode)
+			assert.Equal(t, restfulReq.Attribute(statusCodeHeader), uint32(apimodel.Code_ExecuteSuccess))
+
+			//
+			saveIns, err := discoverSuit.Storage.GetInstance(mockIns.InstanceId)
+			assert.NoError(t, err)
+			assert.False(t, saveIns.Isolate())
+		})
+
+		t.Run("StatusDown", func(t *testing.T) {
+			mockReq := httptest.NewRequest("", fmt.Sprintf("http://127.0.0.1:8761/eureka/v2/apps/%s/%s/status",
+				mockIns.AppName, mockIns.InstanceId), nil)
+			mockReq.PostForm = url.Values{}
+			mockReq.PostForm.Add(ParamValue, StatusDown)
+			mockRsp := newMockResponseWriter()
+
+			restfulReq := restful.NewRequest(mockReq)
+			injectRestfulReqPathParameters(t, restfulReq, map[string]string{
+				ParamAppId:  mockIns.AppName,
+				ParamInstId: mockIns.InstanceId,
+			})
+			eurekaSrv.UpdateStatus(restfulReq, restful.NewResponse(mockRsp))
+			assert.Equal(t, http.StatusOK, mockRsp.statusCode)
+			assert.Equal(t, restfulReq.Attribute(statusCodeHeader), uint32(apimodel.Code_ExecuteSuccess), fmt.Sprintf("%d", restfulReq.Attribute(statusCodeHeader)))
+
+			//
+			saveIns, err := discoverSuit.Storage.GetInstance(mockIns.InstanceId)
+			assert.NoError(t, err)
+			assert.True(t, saveIns.Isolate())
+			assert.Equal(t, StatusDown, saveIns.Proto.Metadata[InternalMetadataStatus])
+		})
+
+		t.Run("StatusUp", func(t *testing.T) {
+			mockReq := httptest.NewRequest("", fmt.Sprintf("http://127.0.0.1:8761/eureka/v2/apps/%s/%s/status",
+				mockIns.AppName, mockIns.InstanceId), nil)
+			mockReq.PostForm = url.Values{}
+			mockReq.PostForm.Add(ParamValue, StatusUp)
+			mockRsp := newMockResponseWriter()
+
+			restfulReq := restful.NewRequest(mockReq)
+			injectRestfulReqPathParameters(t, restfulReq, map[string]string{
+				ParamAppId:  mockIns.AppName,
+				ParamInstId: mockIns.InstanceId,
+			})
+			eurekaSrv.UpdateStatus(restfulReq, restful.NewResponse(mockRsp))
+			assert.Equal(t, http.StatusOK, mockRsp.statusCode)
+			assert.Equal(t, restfulReq.Attribute(statusCodeHeader), uint32(apimodel.Code_ExecuteSuccess), fmt.Sprintf("%d", restfulReq.Attribute(statusCodeHeader)))
+
+			//
+			saveIns, err := discoverSuit.Storage.GetInstance(mockIns.InstanceId)
+			assert.NoError(t, err)
+			assert.False(t, saveIns.Isolate())
+			assert.Equal(t, StatusUp, saveIns.Proto.Metadata[InternalMetadataStatus])
+		})
+
+		t.Run("Polaris_UpdateInstances", func(t *testing.T) {
+			defer func() {
+				rsp := discoverSuit.OriginDiscoverServer().UpdateInstances(discoverSuit.DefaultCtx, []*service_manage.Instance{
+					{
+						Id:      wrapperspb.String(mockIns.InstanceId),
+						Isolate: wrapperspb.Bool(false),
+					},
+				})
+				assert.Equal(t, apimodel.Code_ExecuteSuccess, apimodel.Code(rsp.GetCode().GetValue()))
+			}()
+			rsp := discoverSuit.OriginDiscoverServer().UpdateInstances(discoverSuit.DefaultCtx, []*service_manage.Instance{
+				{
+					Id:      wrapperspb.String(mockIns.InstanceId),
+					Isolate: wrapperspb.Bool(true),
+				},
+			})
+			assert.Equal(t, apimodel.Code_ExecuteSuccess, apimodel.Code(rsp.GetCode().GetValue()))
+
+			// 在获取一次
+			saveIns, err := discoverSuit.Storage.GetInstance(mockIns.InstanceId)
+			assert.NoError(t, err)
+			assert.True(t, saveIns.Isolate())
+			assert.Equal(t, StatusOutOfService, saveIns.Proto.Metadata[InternalMetadataStatus])
+		})
+
+		t.Run("Polaris_UpdateInstancesIsolate", func(t *testing.T) {
+			rsp := discoverSuit.OriginDiscoverServer().UpdateInstances(discoverSuit.DefaultCtx, []*service_manage.Instance{
+				{
+					Id:      wrapperspb.String(mockIns.InstanceId),
+					Isolate: wrapperspb.Bool(true),
+				},
+			})
+			assert.Equal(t, apimodel.Code_ExecuteSuccess, apimodel.Code(rsp.GetCode().GetValue()))
+
+			// 在获取一次
+			_, saveInss, err := discoverSuit.Storage.GetExpandInstances(map[string]string{
+				"id": mockIns.InstanceId,
+			}, map[string]string{}, 0, 10)
+			assert.NoError(t, err)
+			assert.Equal(t, 1, len(saveInss))
+			assert.True(t, saveInss[0].Isolate())
+			assert.Equal(t, StatusOutOfService, saveInss[0].Proto.Metadata[InternalMetadataStatus])
+		})
+	})
+}
+
+func injectRestfulReqPathParameters(t *testing.T, req *restful.Request, params map[string]string) {
+	v := reflect.ValueOf(req)
+	if v.Kind() == reflect.Ptr {
+		v = v.Elem()
+	}
+
+	field := v.FieldByName("pathParameters")
+	fieldVal := utils.GetUnexportedField(field)
+
+	pathParameters, ok := fieldVal.(map[string]string)
+	assert.True(t, ok)
+	for k, v := range params {
+		pathParameters[k] = v
+	}
+	utils.SetUnexportedField(field, params)
+}
+
+func genMockEurekaInstance() *InstanceInfo {
+	mockIns := &InstanceInfo{
+		XMLName:      struct{}{},
+		InstanceId:   "123",
+		AppName:      "MOCK_SERVICE",
+		AppGroupName: "MOCK_SERVICE",
+		IpAddr:       "127.0.0.1",
+		Sid:          "",
+		Port: &PortWrapper{
+			Port:       "8080",
+			RealPort:   8080,
+			Enabled:    "true",
+			RealEnable: true,
+		},
+		Status:           StatusUp,
+		OverriddenStatus: StatusUnknown,
+	}
+	return mockIns
+}

apiserver/eurekaserver/applications.go

@@ -185,14 +185,16 @@ func buildHashCode(version string, hashBuilder map[string]int, newApps *Applicat
 }
 
 func parseStatus(instance *apiservice.Instance) string {
-	if instance.GetIsolate().GetValue() {
-		status, ok := instance.Metadata[InternalMetadataStatus]
-		if ok {
-			return status
-		}
+	if !instance.GetIsolate().GetValue() {
+		return StatusUp
+	}
+	status := instance.Metadata[InternalMetadataStatus]
+	switch status {
+	case StatusDown:
+		return StatusDown
+	default:
 		return StatusOutOfService
 	}
-	return StatusUp
 }
 
 func parsePortWrapper(info *InstanceInfo, instance *apiservice.Instance) {

apiserver/eurekaserver/chain.go

@@ -0,0 +1,76 @@
+/**
+ * Tencent is pleased to support the open source community by making Polaris available.
+ *
+ * Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
+ *
+ * Licensed under the BSD 3-Clause License (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://opensource.org/licenses/BSD-3-Clause
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed
+ * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations under the License.
+ */
+
+package eurekaserver
+
+import (
+	"context"
+
+	"go.uber.org/zap"
+
+	"github.com/polarismesh/polaris/common/model"
+	"github.com/polarismesh/polaris/common/utils"
+	"github.com/polarismesh/polaris/service"
+	"github.com/polarismesh/polaris/store"
+)
+
+type (
+	sourceFromEureka struct{}
+)
+
+func (h *EurekaServer) registerInstanceChain() {
+	svr := h.originDiscoverSvr.(*service.Server)
+	svr.AddInstanceChain(&EurekaInstanceChain{
+		s: h.namingServer.Cache().GetStore(),
+	})
+}
+
+type EurekaInstanceChain struct {
+	s store.Store
+}
+
+func (c *EurekaInstanceChain) AfterUpdate(ctx context.Context, instances ...*model.Instance) {
+	isFromEureka, _ := ctx.Value(sourceFromEureka{}).(bool)
+	if isFromEureka {
+		return
+	}
+
+	// TODO：这里要注意避免 eureka -> polaris -> notify -> eureka 带来的重复操作，后续会在 context 中携带信息做判断处理
+	for i := range instances {
+		ins := instances[i]
+		metadata := ins.Proto.GetMetadata()
+		if _, ok := metadata[InternalMetadataStatus]; !ok {
+			continue
+		}
+		if ins.Isolate() {
+			metadata[InternalMetadataStatus] = StatusOutOfService
+		} else {
+			metadata[InternalMetadataStatus] = StatusUp
+		}
+		if err := c.s.BatchAppendInstanceMetadata([]*store.InstanceMetadataRequest{
+			{
+				InstanceID: ins.ID(),
+				Revision:   utils.NewUUID(),
+				Metadata: map[string]string{
+					InternalMetadataStatus: metadata[InternalMetadataStatus],
+				},
+			},
+		}); err != nil {
+			eurekalog.Error("[EUREKA-SERVER] after update instance isolate fail", zap.Error(err))
+		}
+	}
+}