feat: add mutableTags option to sync command

Author: kamushadenes

cmd/dockersync/cmd/sync.go

@@ -70,10 +70,12 @@ var syncCmd = &cobra.Command{
 
 		source, _ := cmd.Flags().GetString("source")
 		targets, _ := cmd.Flags().GetStringSlice("targets")
+		mutableTags, _ := cmd.Flags().GetStringSlice("mutableTags")
 
 		cnf.Sync.Images = append(cnf.Sync.Images, syncImage{
-			Source:  source,
-			Targets: targets,
+			Source:      source,
+			Targets:     targets,
+			MutableTags: mutableTags,
 		})
 
 		var registries []syncRegistry
@@ -181,7 +183,7 @@ func init() {
 	syncCmd.MarkFlagRequired("source")
 	syncCmd.MarkFlagRequired("targets")
 
-	syncCmd.Flags().StringP("mutableTags", "m", "", "Mutable tags")
+	syncCmd.Flags().StringSliceP("mutableTags", "m", []string{}, "Mutable tags")
 
 	syncCmd.Flags().StringP("ecr-region", "", os.Getenv("AWS_REGION"), "AWS region for ECR")