code: public static boolean verifyEnvironment() {
          if (!PRODUCTION.equals(getEnv())) {
              return true;
          } else {
              File tokenFile = new File("/etc/xian/xian_runtime_production.token");
              if (tokenFile.exists() && tokenFile.isFile()) {
                  String token = PlainFileUtil.readAll(tokenFile);
                  return "cbab75c745ac9707cf75b719a76e81284abc04c0ae96e2506fd247e9a3d9ca04".equals(token);
              }
              return false;
          }
      }
docs: Production safety check. Protection for production env.