[ISSUE arana-db#62] Feat configcenter (arana-db#120)

* refactor: 配置中心模块重构

* feat: 添加etcd & file的配置存储实现

* feat: feat issue arana-db#62

* feat: feat issue arana-db#62

* fix: fix pr comment

* fix: fix test fail

* style: fix import style

* fix: fix code style

.gitignore

@@ -14,7 +14,7 @@
 /coverage.txt
 
 # Dependency directories (remove the comment below to include it)
-# vendor/
+vendor/
 .idea/
 
 .tmp/

cmd/cmd.go

@@ -58,7 +58,7 @@ var (
 		Short: "start arana",
 
 		Run: func(cmd *cobra.Command, args []string) {
-			provider := boot.NewFileProvider(configPath)
+			provider := boot.NewProvider(configPath)
 			if err := boot.Boot(context.Background(), provider); err != nil {
 				log.Fatal("start failed: %v", err)
 				return

docker/conf/bootstrap.yaml

@@ -0,0 +1,7 @@
+config:
+  name: file
+  options:
+    path: ./config.yaml
+  # name: etcd
+  # options:
+  #   endpoints: "http://localhost:2382"

docker/docker-compose.yaml

@@ -22,13 +22,14 @@ services:
   arana:
     image: arana:latest
     container_name: arana
-    command: sh -c "./arana start -c config.yaml"
+    command: sh -c "./arana start -c bootstrap.yaml"
     networks:
       - local
     ports:
     - "13306:13306"
     volumes:
     - ./conf/config.yaml:/app/config.yaml
+    - ./conf/bootstrap.yaml:/app/bootstrap.yaml
     depends_on:
       - mysql
 networks:

go.mod

@@ -6,26 +6,34 @@ require (
 	github.com/arana-db/parser v0.2.1
 	github.com/bwmarrin/snowflake v0.3.0
 	github.com/cespare/xxhash/v2 v2.1.2
-	github.com/creasty/defaults v1.5.2 // indirect
 	github.com/dop251/goja v0.0.0-20220102113305-2298ace6d09d
 	github.com/dubbogo/gost v1.11.23-0.20220113102152-a2ef9b809a45
 	github.com/ghodss/yaml v1.0.0
 	github.com/go-sql-driver/mysql v1.6.0
+	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/golang/mock v1.5.0
+	github.com/google/go-cmp v0.5.6 // indirect
 	github.com/hashicorp/golang-lru v0.5.4
 	github.com/kr/pretty v0.3.0 // indirect
 	github.com/lestrrat-go/strftime v1.0.5
 	github.com/natefinch/lumberjack v2.0.0+incompatible
 	github.com/olekukonko/tablewriter v0.0.5
 	github.com/pkg/errors v0.9.1
+	github.com/prometheus/common v0.28.0 // indirect
 	github.com/rogpeppe/go-internal v1.8.0 // indirect
 	github.com/spf13/cobra v1.2.1
 	github.com/stretchr/testify v1.7.0
 	github.com/testcontainers/testcontainers-go v0.12.0
 	github.com/tidwall/gjson v1.14.0
+	go.etcd.io/etcd/api/v3 v3.5.1
+	go.etcd.io/etcd/client/v3 v3.5.0
 	go.etcd.io/etcd/server/v3 v3.5.0-alpha.0
 	go.uber.org/atomic v1.9.0
 	go.uber.org/zap v1.19.1
+	golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97 // indirect
 	golang.org/x/net v0.0.0-20211108170745-6635138e15ea
 	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
+	google.golang.org/genproto v0.0.0-20211104193956-4c6863e31247 // indirect
+	google.golang.org/grpc v1.42.0 // indirect
+	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b
 )