docs: function info(options , callback){
      options.url  = 'https://'+options.host+':'+options.port+SUPERVISOR_PATH_INFO;
      options.key = ssl_files.readFileContent(options.keyFile);
      options.cert = ssl_files.readFileContent(options.certFile);
      options.ca = ssl_files.readCaChain(options.ca);
  
      request(options, function (error, response, body) {
          if (!error && response.statusCode == 200) {
              callback(null, JSON.parse(body));
          }else{
              callback(new Error("Error connecting to the supervisor:"+error.toString()) , null);
          }
      });
  
  }