default.json

{
  "variables": {
    "home": "{{env `HOME`}}",
    "cloud_token": "{{env `VAGRANT_CLOUD_TOKEN`}}",
    "version": "{{env `BOX_VERSION`}}"
  },
  "builders": [
    {
      "type": "virtualbox-ovf",
      "source_path": "{{user `home`}}/.vagrant.d/boxes/box-cutter-VAGRANTSLASH-ubuntu1404-i386/1.0.2/virtualbox/box.ovf",
      "ssh_username": "vagrant",
      "ssh_password": "vagrant",
      "headless": true,
      "vboxmanage": [
        ["modifyvm", "{{.Name}}", "--memory", "2048"],
        ["modifyvm", "{{.Name}}", "--cpus", "2"]
      ],
      "ssh_wait_timeout": "30s",
      "shutdown_command": "sudo shutdown -h now"
    }
  ],
  "provisioners": [
    {
      "type": "shell",
      "script": "provision.sh"
    }
  ],
  "post-processors": [
    [{
      "type": "vagrant"
    },
    {
      "type": "vagrant-cloud",
      "box_tag": "udacity/ud381",
      "access_token": "{{user `cloud_token`}}",
      "version": "{{user `version`}}"
    }]
  ]
}