HttpInterface.js

//
// PM2 Monit and Server web interface
// Disserve JSON in light way
// by Strzelewicz Alexandre
//

var http  = require('http');
var os    = require('os');
var Satan = require('./Satan');
var urlT  = require('url');
var cst   = require('../constants.js');
var p     = require('path');

http.createServer(function (req, res) {
  // We always send json
  res.writeHead(200, {'Content-Type': 'application/json'});

  var path = urlT.parse(req.url).pathname;

  console.log('Access on PM2 monit point %s', path);

  
  if (path == '/') {
    // Main monit route
    Satan.executeRemote('list', {}, function(err, data_proc) {
      var data = {
        system_info: { hostname: os.hostname(),
                       uptime: os.uptime()
                     },
        monit: { loadavg: os.loadavg(),
                 total_mem: os.totalmem(),
                 free_mem: os.freemem(),
                 cpu: os.cpus(),
                 interfaces: os.networkInterfaces()
               },
        processes: data_proc
      };
      
      res.write(JSON.stringify(data));
      return res.end();
    });
  }
  else {
    // 404
    res.write(JSON.stringify({err : '404'}));
    return res.end();
  };
}).listen(cst.WEB_INTERFACE);


// var MicroDB = require("nodejs-microdb");

// var fdb = new MicroDB({
//   "file" : p.join(cst.DEFAULT_FILE_PATH, "monit.db")
// });

// setInterval(function() {
//   Satan.executeRemote("list", {}, function(err, data_proc) {
//     console.log('adding');
//     fdb.add(data_proc);
//   });
// }, 1000);