add .env config

.gitignore

@@ -1 +1,3 @@
 node_modules
+
+.env

countdown.js

@@ -1,5 +1,7 @@
 'use strict';
 
+require('dotenv').config();
+
 const path = require('path');
 
 const express = require('express');
@@ -36,6 +38,9 @@ module.getHomeView = async (req, res) => {
 
     module.app.locals.moment = require('moment');
     module.app.locals.numeral = require('numeral');
+    module.app.locals.site = {
+        domain: process.env.DTP_SITE_DOMAIN || 'localhost:8000',
+    };
 
     module.app.set('view engine', 'pug');
     module.app.set('views', path.join(__dirname, 'app', 'views'));
@@ -55,7 +60,12 @@ module.getHomeView = async (req, res) => {
     module.app.get('/timer', module.getTimerView);
     module.app.get('/', module.getHomeView);
 
-    module.app.listen(8000, ( ) => {
+    const bind = {
+        host: process.env.DTP_HTTP_HOST || 'localhost',
+        port: parseInt(process.env.DTP_HTTP_PORT || '8000', 10),
+    };
+    console.log('starting service', bind);
+    module.app.listen(bind.port, bind.host, ( ) => {
         console.log('Countdown online');
     });
 })();

package.json

@@ -1,6 +1,7 @@
 {
   "main": "countdown.js",
   "dependencies": {
+    "dotenv": "^16.0.1",
     "express": "^4.18.1",
     "forever": "^4.0.3",
     "gulp": "^4.0.2",

yarn.lock

@@ -789,6 +789,11 @@ dot-prop@^4.1.0:
   dependencies:
     is-obj "^1.0.0"
 
+dotenv@^16.0.1:
+  version "16.0.1"
+  resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-16.0.1.tgz#8f8f9d94876c35dac989876a5d3a82a267fdce1d"
+  integrity sha512-1K6hR6wtk2FviQ4kEiSjFiH5rpzEVi8WW0x96aztHVMhEspNpc4DVOUTEHtEva5VThQ8IaBX1Pe4gSzpVVUsKQ==
+
 duplexer@~0.1.1:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/duplexer/-/duplexer-0.1.2.tgz#3abe43aef3835f8ae077d136ddce0f276b0400e6"