kube node app

app.js

var os = require("os");
var ifaces = os.networkInterfaces();
var myIfaces = {};

Object.keys(ifaces).forEach(function (ifname) {
  var alias = 0;

  ifaces[ifname].forEach(function (iface) {
    if ('IPv4' !== iface.family || iface.internal !== false) {
      // skip over internal (i.e. 127.0.0.1) and non-ipv4 addresses
      return;
    }

    if (alias >= 1) {
      myIfaces[ifname + ':' + alias] = iface.address;
    } else {
      myIfaces[ifname] = iface.address;
    }
    ++alias;
  });
});

require('http').createServer((request, response) => {
  response.writeHead(200, {'Content-Type': 'application/json'});
  response.end(JSON.stringify({
    requestHost: request.headers.host,
    osHostname: os.hostname(),
    net: myIfaces
  }, null, 2));
}).listen(3000, () => {
  console.log('Server listening ...');
});