houston server config에 storagepath 추가

server/server.go

@@ -21,7 +21,8 @@ type HoustonServer interface {
 }
 
 type serverConfig struct {
-	GrpcPort int `json:"grpc_port"`
+	GrpcPort    int    `json:"grpc_port"`
+	StoragePath string `json:"storage_path"`
 }
 
 type totalConfig struct {
@@ -110,17 +111,27 @@ type Operation interface {
 	Hosts() map[string]hostSnapshot
 }
 
-func NewServer() HoustonServer {
-	port := 8080
-	if bt, err := os.ReadFile("config.json"); err == nil {
-		var config totalConfig
-		if err := json.Unmarshal(bt, &config); err == nil {
-			if config.Server.GrpcPort != 0 {
-				port = config.Server.GrpcPort
-			}
-		}
+func loadConfig() serverConfig {
+	var config totalConfig
+
+	config.Server.GrpcPort = 8080
+	configFile, err := os.Open("config.json")
+	if err != nil {
+		logger.Error(err)
+		return config.Server
+	}
+	defer configFile.Close()
+	dec := json.NewDecoder(configFile)
+	err = dec.Decode(&config)
+	if err != nil {
+		logger.Error(err)
+		return config.Server
 	}
 
+	return config.Server
+}
+
+func NewServer() HoustonServer {
 	var opts []grpc.ServerOption
 	grpcServer := grpc.NewServer(opts...)
 
@@ -133,7 +144,7 @@ func NewServer() HoustonServer {
 		rpcServer: grpcServer,
 		os:        os,
 		ms:        ms,
-		port:      port,
+		port:      loadConfig().GrpcPort,
 	}
 }