Add environment to decide which config should be loaded

controller/cmd/root.go

@@ -33,10 +33,12 @@ package cmd
 
 import (
 	"context"
+	"fmt"
 	"os"
 	"path/filepath"
 
 	"code.fbi.h-da.de/danet/gosdn/controller"
+	"code.fbi.h-da.de/danet/gosdn/controller/config"
 	log "github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 
@@ -96,10 +98,14 @@ func initConfig() {
 		// Use config file from the flag.
 		viper.SetConfigFile(cfgFile)
 	} else {
+		env := config.DetermineConfigEnvironment()
+
+		log.Infof("environment is %s\n", env)
+
 		viper.AddConfigPath(configHome)
 		viper.AddConfigPath("/usr/local/etc/gosdn/")
 		viper.SetConfigType(configType)
-		viper.SetConfigName(configName)
+		viper.SetConfigName(fmt.Sprintf("%s-%s", env, configName))
 	}
 
 	viper.AutomaticEnv() // read in environment variables that match