Trying to run shell script on EC2 instance

I am trying to use a shell script I have in order to automate the installation of squid proxy on a single AWS server as I boot the server up using nodejs via the AWS SDK, but it seems whenever I boot the instance up the server does not take input from my script at all. Any help would be appreciated.

const AWS = require('aws-sdk')

const ec2 = new AWS.EC2({ apiVersion: '2016-11-15', region: "us-east-1", accessKeyId: "XXXXXXXXX", secretAccessKey:"XXXXXXXXXXXX" })

let commands = [
'#!/bin/bash',
'#',
'# Ubuntu 14 LTS',
'#',

'set - v',

'sudo su -',

'  nano squid.sh',

'chmod + x squid.sh',

'apt - get - y update',

'apt - get install - y ntpdate',
'apt - get install - y squid3 apache2 - utils',

'cp / etc / squid / squid.conf / etc / squid / squid.conf.bak',

'cat << EOF > /etc/squid / squid.conf',
'http_port 1052',
'http_access allow all',
'cache deny all',
'forwarded_for delete',
'request_header_access Via deny all',
'EOF',

'service squid restart',

'echo "IP ADDRESS"',

'curl ifconfig.co'
];

const params = {
  ImageId: 'ami-08bc77a2c7eb2b1da',
  InstanceType: 't3.nano',
  MinCount: 1,
  MaxCount: 1,
  SubnetId: 'subnet-1885ea36',
  UserData:new Buffer.from(commands.join("\n")).toString('base64'),
  Placement: {
    Tenancy: 'dedicated',
  }
};

ec2.runInstances(params, function (err, data) {
  if (err) {
    console.log('Could not create instance', err);
    return;
  }
  const instanceId = data.Instances[0].InstanceId;
  console.log('Created instance', instanceId);
});