     # this is the name of your VM
     vagrant-instance:
       # define your vm specs here, 2 cpus, 2GB of memory etc.
-      cpus: 2
-      memory: 2048
+      cpus: '${var.userInput_cpus}'
+      memory: '${var.userInput_memory}'
       # select your image (optional) eg. ubuntu/trusty64 (it should be based on ubuntu 14.04)
-      box: ubuntu/trusty64
+      box: '${var.userInput_box}'
       user_data: |-
         # let's create a file on your root folder:
         echo "hello world!" >> /helloworld.txt

  "resource": {
    "vagrant_instance": {
      "vagrant-instance": {
        "cpus": 2,
        "memory": 2048,
        "box": "ubuntu/trusty64",
        "user_data": "\\necho \\\"hello world!\\\" >> /helloworld.txt\\n"
      }
    }

        # for more information please use the search box above

    '''

  # Defaults for userInputs
  user_inputs:
    memory: 2048
    cpus: 2
    box: 'ubuntu/trusty64'
