Simple Vagrantfile for development

vagrant_provision_nodejs.sh

#!/bin/bash

# Upgrade system
sudo apt-get update -y
sudo apt-get install build-essential g++ git-core -y

# Install nvm & node 4 as default
curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.29.0/install.sh | bash
export NVM_DIR="/home/vagrant/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh"

nvm install 4
nvm use 4
nvm alias default 4

Vagrantfile

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

# Vagrantfile API/syntax version. Don't touch unless you know what you're doing!
VAGRANTFILE_API_VERSION = "2"

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
  config.vm.provider "virtualbox" do |v|
    v.memory = 2048
    v.cpus = 1
  end

  config.vm.synced_folder "source", "vagrant dest"
  config.ssh.forward_agent = true

  config.vm.box = "trusty64"
  config.vm.network "private_network", ip: "44.44.44.44"
  config.vm.provision "shell",
    :path => "vagrant_provision_xxxx.sh" # replace xxxx = name of language you use for project

end