DarrenF-G

    {
      "builders": [
        {
          "CPUs": "{{user `vm-cpu-num`}}",
          "CPU_hot_plug": true,
          "RAM": "{{user `vm-mem-size`}}",
          "iso_url": "{{user `iso_url`}}",
          "iso_checksum": "{{user `iso_checksum`}}",
          "RAM_hot_plug": true,
          "RAM_reserve_all": true,