windows_10_second.json

{
  "builders": [
     {
       "boot_wait": "10m",
       "type": "virtualbox-ovf",
       "source_path": "/apps/windows_10_virtualbox.ovf",
       "communicator": "winrm",
       "headless": "{{user `headless`}}",
       "shutdown_command": "shutdown /s /t 10 /f /d p:4:1 /c \"Packer Shutdown\"",
       "winrm_password": "vagrant",
       "winrm_timeout": "{{user `winrm_timeout`}}",
       "winrm_username": "vagrant"
     }
  ],
  "provisioners": [],
  "post-processors": [
     {
       "compression_level": 9,
       "keep_input_artifact": true,
       "output": "windows_10_{{.Provider}}.box",
       "type": "vagrant"
     }
  ],
  "variables": {
    "headless": "true",
    "winrm_timeout": "6h"
  }
}