setup.js

"use strict";
const util = require('util');
const exec = util.promisify(require('child_process').exec);
const execSync = util.promisify(require('child_process').execSync);

var Client = require('ssh2').Client;
var conn = new Client();

var config = JSON.parse(require('fs').readFileSync('config.json'));
var setupInstructions = 'curl -sL https://rpm.nodesource.com/setup_10.x | sudo bash - \
  && sudo yum install -y nodejs && curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.11/install.sh | bash \
  && export NVM_DIR="$HOME/.nvm" && [ -s "$NVM_DIR/nvm.sh" ] \
  && \\. "$NVM_DIR/nvm.sh" && nvm install 8.16.0 \
  && nvm use 8.16.0 \
  && npm install \
  && echo "COMPLETED APP SETUP!"';

function setupNode(){
  conn.on('ready', function() {
      var finished = false;
      conn.exec(setupInstructions, function(err, stream){
        if (err) throw err;
        stream.on('close', function(code, signal) {
        }).on('data', function(data) {
          console.log(data.toString());
          if (data.toString().includes('COMPLETED APP SETUP!') ) {
            conn.end();
          }
        }).stderr.on('data', function(data) {
          // if (data !== ''){
          //   console.log('ERROR: ' + data);
          // }
        });
      });
  }).connect({
    host: config['ec2instance'],
    port: 22,
    username: config['ec2user'],
    privateKey: require('fs').readFileSync(config['ec2keyfile'])
  });
}

async function rsync() {
  execSync(`ssh-keyscan ${config['ec2instance']} >> ~/.ssh/known_hosts`);

  const { stdout, stderr } = await exec(`rsync -av -e "ssh -i ${config['ec2keyfile']} " package.json ${config['ec2user']}@${config['ec2instance']}:~/`);
  if (stderr !== ''){
    console.log(stderr.toString());
  }
  console.log(`Successfully connected to ${config['ec2instance']}\nNow setting up the instance...`);
  setupNode();
}
rsync();