Setting vagrant vm with Ubuntu 16.04 and rails working environment. ( postgres 10, Rails 5, Ruby 2.5, and RVM)

set_up_vm.sh

#!/bin/bash

if
  [[ "${USER:-}" == "root" ]]
then
  echo "This script works only with normal user, it wont work with root, please log in as normal user and try again." >&2
  exit 1
fi

set -e

curl -sL https://deb.nodesource.com/setup_6.x | sudo -E bash -

# add repo for postgres installation
echo "============add repo for later postgres installation"
sudo add-apt-repository "deb http://apt.postgresql.org/pub/repos/apt/ $(lsb_release -sc)-pgdg main"
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -

echo "============Updates packages. Asks for your password."
sudo apt-get update -y

echo "============Installing nginx"
sudo apt-get install nginx -y

echo "============Installing Git"
sudo apt-get install git-core -y

echo "============Setting up Git"
git config --global user.name "Denn Orina"
git config --global user.email "anyoksdenn@gmail.com"

echo "============Installs packages. Give your password when asked."
sudo apt-get --ignore-missing install build-essential git-core curl openssl libssl-dev libcurl4-openssl-dev zlib1g zlib1g-dev libreadline-dev libreadline6 libreadline6-dev libyaml-dev libsqlite3-dev libsqlite3-0 sqlite3 libxml2-dev libxslt1-dev python-software-properties libffi-dev libgdm-dev libncurses5-dev automake autoconf libtool bison postgresql-9.6 postgresql-contrib libpq-dev pgadmin3 libc6-dev nodejs -y

echo "============Installs ImageMagick for image processing"
sudo apt-get install imagemagick --fix-missing -y

echo "============Installs RVM (Ruby Version Manager) for handling Ruby installation"
gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3
curl -sSL https://get.rvm.io | bash -s stable
source ~/.rvm/scripts/rvm

echo "Installs Ruby"
rvm install 2.5.0
rvm use 2.5.0 --default

echo "gem: --no-ri --no-rdoc" > ~/.gemrc
gem install bundler
gem install rails


echo -e "\n- - - - - -\n"
echo -e "Now we are going to print some information to check that everything is done:\n\n"

echo -n "Should be rvm 1.29 or higher:         "
rvm --version
echo -n "Should be ruby 2.4.1 or higher:                "
ruby -v
echo -n "Should be Bundler 1.15 or higher:         "
bundler -v
echo -n "Should be Rails 5.1.3 or higher:         "
rails -v
echo -n "Should be NodeJS 6.11 or higher:         "
node -v
echo -n "Should be sqlite 3.11 or higher:         "
sqlite3 --version
echo -n "Should be ImageMagick 6.8.9 or higher:         "
convert --version

echo -e "\n- - - - - -\n"

echo "If the versions match, everything is installed correctly.
Congrats!
Make sure that all works well by running the application generator command:
    $ rails new testapp"

Vagrantfile

# -*- mode: ruby -*-
# vi: set ft=ruby :

# All Vagrant configuration is done below. The "2" in Vagrant.configure
# configures the configuration version (we support older styles for
# backwards compatibility). Please don't change it unless you know what
# you're doing.
Vagrant.configure("2") do |config|

  config.vm.box       = "ubuntu/xenial64"
# give vm a host name
  config.vm.hostname  = "dev"
# link project folders to home dir on the vm
  config.vm.synced_folder ".", "/home/vagrant/discoucher"
# disable the default mounting point
# config.vm.synced_folder ".", "/vagrant", disabled: true 

  config.vm.network :forwarded_port, guest: 3000, host: 3000    # rails
  config.vm.network :forwarded_port, guest: 9292, host: 9292    # rack
  config.vm.network :forwarded_port, guest: 4567, host: 4567    # sinatra
  config.vm.network :forwarded_port, guest: 1080, host: 1080    # mailcatcher
  config.vm.network :forwarded_port, guest: 8888, host: 8888    # jasmine
  config.vm.network :forwarded_port, guest: 3306, host: 3306    # mysql
  config.vm.network :forwarded_port, guest: 1234, host: 1234    # node
  config.vm.network :forwarded_port, guest: 5432, host: 5432    # postgresql
  config.vm.network :forwarded_port, guest: 6379, host: 6378    # redis
  config.vm.network :forwarded_port, guest: 9200, host: 9200    # elasticsearch
  config.vm.network :forwarded_port, guest: 27017, host: 27017  # mongodb
  config.vm.network :forwarded_port, guest: 80, host: 8080      # apache/nginx

  config.vm.provision :shell, path: 'set_up_vm.sh', keep_color: true, privileged: false

  config.vm.provider 'virtualbox' do |v|
    v.memory = 1024
    v.cpus = 1
  end
end