Really simple NodeJS Webserver that returns an image the the servers hostname - used for autoscaling demo

helloworld.js

const express = require('express')
const app = express()
const serverName = require('os').hostname();


const messageTop = '<div class="middle">\
                        <img src="https://www.fujitsu.com/uk/Images/K5-climber-580x224_tcm23-2619235.jpg" alt="K5 Autoscale">\
                    <h1>Hello from '
const messageTail = '</h1>\
                        <hr>\
                    </div>\
                </div>'
app.get('/', function (req, res) {
  res.send(messageTop + serverName + messageTail)
})

app.listen(80, function () {
  console.log('Example app listening on port 80')
})