decoupled constants

constants.json

+{
+    "mqtt_url": "10.129.6.5",
+    "registry_url" :"10.129.6.5:5000/",
+    "master_port": 8080,
+    "master_address": "10.129.6.5"
+}
\ No newline at end of file

dispatch_daemon/index.js

+'use strict';
+
 const mqtt = require('mqtt')
-const client = mqtt.connect('mqtt://localhost')
+const constants = require(".././constants.json")
+console.log(constants.mqtt_url);
+
+const client = mqtt.connect('mqtt://' + constants.mqtt_url)
 const libSupport = require('./lib')
 const execute = require('./execute')
 const fs = require('fs')
+
 const node_id = "20sez54hq8"
 const local_repository = __dirname + "/local_repository/"
-const host_url = 'http://127.0.0.1:8080/'
+const host_url = "http://" + constants.master_address + ":" + constants.master_port
 client.on('connect', function () {
     client.subscribe(node_id, function (err) {
         if (!err) {

dispatcher/index.js

@@ -3,12 +3,12 @@
 const express = require('express')
 const bodyParser = require('body-parser')
 const fileUpload = require('express-fileupload');
-
+const constants = require('.././constants.json')
 const fs = require('fs')
 const { spawn } = require('child_process');
 const morgan = require('morgan')
 const mqtt = require('mqtt')
-const client = mqtt.connect('mqtt://localhost')
+const client = mqtt.connect('mqtt://' + constants.mqtt_url)
 const app = express()
 const libSupport = require('./lib')
 
@@ -26,7 +26,7 @@ let requestQueue = []
 const node_id = "20sez54hq8"
 const WINDOW_SIZE = 10
 const port = 8080
-const registry_url = "10.129.6.5:5000/"
+const registry_url = constants.registry_url
 
 app.post('/serverless/deploy', (req, res) => {