}
	cmd.PersistentFlags().StringVarP(&configDumpFile, "file", "f", "",
		"The json file with Envoy config dump to be checked")
	return cmd
}

func getConfigDumpFromFile(filename string) (*configdump.Wrapper, error) {
	file, err := os.Open(filename)
	if err != nil {
		return nil, err
	}
	defer func() {
		if err := file.Close(); err != nil {
			log.Errorf("failed to close %s: %s", filename, err)
		}
	}()