Feature: add direct connect mode with zookeeper, etcd, and k8s (#1775)

* fix: fix the bug

* fix: fix the imAdmin permission and searchNoficitaion resp

* 2023 Annual Summary Reflections and Aspirations

Signed-off-by: Xinwei Xiong (cubxxw) <3293172751nss@gmail.com>

* fix: dissmissGroup and lack of keyword bug (#1678)

* Update docker-start-all.sh

* Update env-template.yaml

* Update docker-start-all.sh

* fix openim config mongo passwd env

Signed-off-by: Xinwei Xiong (cubxxw) <3293172751nss@gmail.com>

* fix: fix some bug

* fix: group messages sync failed.

* fix: fix the valiable name

* fix: fix the getSortedConversation api

* fix: fix the mongo search error

* fix: GroupApplicationAcceptedNotification

(cherry picked from commit 4c3c4555a3)

* fix: GroupApplicationAcceptedNotification

* fix update friends

* fix pageFindUser

* Delete .devcontainer directory

* fix find user

* Your commit message here

* feat: direct conn

* fix: direct conn message gateway array exceed length

* fix: direct conn message gateway array exceed length

* fix: direct conn cannot find name

* fix: direct conn cannot find name

* fix: direct conn cannot find name

* fix: direct conn cannot find name

* fix: direct conn cannot find name

* fix: direct conn cannot find name

* fix: direct conn cannot find name

* fix: direct conn cannot find name

* fix: direct conn cannot find name

* fix: operation id invalid

* feat: multiple address

* feat: multiple address

* feat: multiple address

* feat: multiple addresses

* feat: multiple addresses

* feat: multiple addresses

* feat: multiple addresses

* feat: multiple addresses

* feat: multiple addresses

* feat: multiple addresses

* feat: multiple addresses

* feat: multiple addresses

* feat: multiple addresses

* feat: multiple addresses

* feat: multiple addresses

* feat: multiple addresses

* feat: direct conn with multiple ports

* Update user.go

* feat: direct conn with multiple ports

* feat: remove checkServiceHealth

* feat: update fmt error

* feat: update .devcontainer

* feat: update .devcontainer

* feat: update fmt.Errorf(

---------

Signed-off-by: Xinwei Xiong (cubxxw) <3293172751nss@gmail.com>
Co-authored-by: luhaoling <2198702716@qq.com>
Co-authored-by: Xinwei Xiong <3293172751@qq.com>
Co-authored-by: Xinwei Xiong (cubxxw) <3293172751nss@gmail.com>
Co-authored-by: Brabem <69128477+luhaoling@users.noreply.github.com>
Co-authored-by: OpenIM Bot <124379614+kubbot@users.noreply.github.com>
Co-authored-by: OpenIM Robot <139873238+openimbot@users.noreply.github.com>
Co-authored-by: Gordon <46924906+FGadvancer@users.noreply.github.com>
Co-authored-by: withchao <993506633@qq.com>

internal/api/route.go

@@ -16,6 +16,7 @@ package api
 
 import (
 	"context"
+	"fmt"
 	"net/http"
 
 	"github.com/OpenIMSDK/protocol/constant"
@@ -43,7 +44,7 @@ import (
 )
 
 func NewGinRouter(discov discoveryregistry.SvcDiscoveryRegistry, rdb redis.UniversalClient) *gin.Engine {
-	discov.AddOption(mw.GrpcClient(), grpc.WithTransportCredentials(insecure.NewCredentials())) // 默认RPC中间件
+	discov.AddOption(mw.GrpcClient(), grpc.WithTransportCredentials(insecure.NewCredentials()), grpc.WithDefaultServiceConfig(fmt.Sprintf(`{"LoadBalancingPolicy": "%s"}`, "round_robin"))) // 默认RPC中间件
 	gin.SetMode(gin.ReleaseMode)
 	r := gin.New()
 	if v, ok := binding.Validator.Engine().(*validator.Validate); ok {