code: public boolean setJstormConf(String key, String value) {
          //todo: how to set conf from a signal
          // could pull configuration file from nimbus
          String line = " " + key + ": " + value;
          try {
              Files.write(Paths.get("deploy/jstorm/conf/storm.yaml"), line.getBytes(), StandardOpenOption.APPEND);
  
          } catch (IOException e) {
              LOG.error(e);
              return false;
          }
          return true;
      }
docs: set local conf
  
  @param key
  @param value
  @return