Vagrant with self-provisioning Ansible playbook

Vagrantfile

Vagrant.configure(2) do |config|
  config.vm.box = "trusty64"

  config.vm.network "forwarded_port", guest: 8080, host: 9090

  config.vm.provider "virtualbox" do |vb|
    vb.memory = "2048"
  end

  $script = <<SCRIPT
  	# Install Ansible dependencies on first run:
  	if [ ! -f /etc/ansible/hosts ]; then
  		# Improved mirror sources for apt packages
		echo 'deb mirror://mirrors.ubuntu.com/mirrors.txt trusty main restricted universe multiverse' | cat - /etc/apt/sources.list > temp && sudo mv temp /etc/apt/sources.list
		echo 'deb mirror://mirrors.ubuntu.com/mirrors.txt trusty-updates main restricted universe multiverse' | cat - /etc/apt/sources.list > temp && sudo mv temp /etc/apt/sources.list

		sudo apt-get update
		sudo apt-get install -y python-pip
		sudo pip install ansible

		# Create a simple inventory file for localhost:
		mkdir -p /etc/ansible
		echo "[local]" > /etc/ansible/hosts
		echo "localhost	ansible_connection=local" >> /etc/ansible/hosts
  	fi

  	cd /vagrant

  	# We want Ansible's output line by line:
  	export PYTHONUNBUFFERED=1

  	# Run the actual playbook:
  	ansible-playbook provision/main.yml
SCRIPT

  config.vm.provision "shell", inline: $script
end