config 구조 변경

server/server.go

@@ -25,10 +25,6 @@ type serverConfig struct {
 	StoragePath string `json:"storage_path"`
 }
 
-type totalConfig struct {
-	Server serverConfig `json:"houston_server"`
-}
-
 type DeployRequest struct {
 	shared.DeployRequest
 	hostnames []string
@@ -111,24 +107,39 @@ type Operation interface {
 	Hosts() map[string]hostSnapshot
 }
 
-func loadConfig() serverConfig {
-	var config totalConfig
-
-	config.Server.GrpcPort = 8080
+func loadServerConfig() serverConfig {
 	configFile, err := os.Open("config.json")
 	if err != nil {
 		logger.Error(err)
-		return config.Server
+		return serverConfig{
+			GrpcPort: 8080,
+		}
 	}
 	defer configFile.Close()
+
+	var config struct {
+		Houston *struct {
+			Server serverConfig `json:"server"`
+		} `json:"houston"`
+	}
+
 	dec := json.NewDecoder(configFile)
 	err = dec.Decode(&config)
 	if err != nil {
 		logger.Error(err)
-		return config.Server
+		return serverConfig{
+			GrpcPort: 8080,
+		}
 	}
 
-	return config.Server
+	if config.Houston == nil {
+		logger.Error(`"houston" object is missing in config.json`)
+		return serverConfig{
+			GrpcPort: 8080,
+		}
+	}
+
+	return config.Houston.Server
 }
 
 func NewServer() HoustonServer {
@@ -144,7 +155,7 @@ func NewServer() HoustonServer {
 		rpcServer: grpcServer,
 		os:        os,
 		ms:        ms,
-		port:      loadConfig().GrpcPort,
+		port:      loadServerConfig().GrpcPort,
 	}
 }