Adding server config structure

main.go

@@ -1,13 +1,15 @@
 package main
 
 import (
+	"log"
+
 	"github.com/minio-io/minio/pkg/server"
 	"github.com/spf13/cobra"
 )
 
 func main() {
 	var tls bool
-	var inmemory bool
+	var storageTypeStr string
 	var address string
 	var certFile string
 	var keyFile string
@@ -16,13 +18,36 @@ func main() {
 		Short: "minio is a minimal object storage system",
 		Long:  "",
 		Run: func(cmd *cobra.Command, args []string) {
-			server.Start(address, tls, certFile, keyFile, inmemory)
+			storageType := getStorageType(storageTypeStr)
+			serverConfig := server.ServerConfig{
+				Address:     address,
+				Tls:         tls,
+				CertFile:    certFile,
+				KeyFile:     keyFile,
+				StorageType: storageType,
+			}
+			server.Start(serverConfig)
 		},
 	}
 	minioCommand.PersistentFlags().BoolVarP(&tls, "tls", "t", false, "enable tls")
-	minioCommand.PersistentFlags().BoolVarP(&inmemory, "inmemory", "m", false, "in memory object storage")
+	minioCommand.PersistentFlags().StringVarP(&storageTypeStr, "storage-type", "s", "file", "file,inmemory")
 	minioCommand.PersistentFlags().StringVarP(&address, "http-address", "a", ":8080", "http address")
 	minioCommand.PersistentFlags().StringVarP(&certFile, "cert", "c", "", "cert file path")
 	minioCommand.PersistentFlags().StringVarP(&keyFile, "key", "k", "", "key file path")
 	minioCommand.Execute()
 }
+
+func getStorageType(input string) server.StorageType {
+	switch {
+	case input == "file":
+		return server.InMemoryStorage
+	case input == "inmemory":
+		return server.InMemoryStorage
+	default:
+		{
+			log.Fatal("Unknown server type:", input)
+			// needed for compile, should never return after fatal log msg
+			return server.InMemoryStorage
+		}
+	}
+}