vagrant + docker: create a vagrant box already ansible-provisioned with docker

playbook.yml

---
- hosts: all
  sudo: true
  tasks:
  - apt_repository: repo='deb https://get.docker.io/ubuntu docker main' state=present update_cache=yes
  - apt: name=lxc-docker force=yes

requirements.txt

ansible

Vagrantfile

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

VAGRANTFILE_API_VERSION = "2"

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
  config.vm.box = "ubuntu/trusty64"

  config.vm.network "private_network", ip: "192.168.33.10"

  config.vm.provision "ansible" do |ansible|
    ansible.playbook = "playbook.yml"
    ansible.extra_vars = { ansible_ssh_user: 'vagrant' }
  end
end