{
  "variables": {
    "iso_url": "{{env `ISO_IMAGE`}}",
    "iso_checksum": "{{env `ISO_MD5_SUM`}}",
    "output_directory": "{{env `PACKER_BUILD_DIR`}}"
  },
  "builders":
  [
    {
      "type": "qemu",
      "iso_url": "{{user `iso_url`}}",
      "iso_checksum": "{{user `iso_checksum`}}",
      "iso_checksum_type": "md5",
      "output_directory": "{{user `output_directory`}}/qemu",
      "shutdown_command": "sudo halt -p",
      "disk_size": 4096,
      "format": "raw",
      "headless": true,
      "accelerator": "kvm",
      "ssh_host_port_min": 2222,
      "ssh_host_port_max": 2229,
      "ssh_username": "vyos",
      "ssh_password": "vyos",
      "ssh_port": 22,
      "ssh_wait_timeout": "30s",
      "vm_name": "vyos_qemu_image.img",
      "net_device": "virtio-net",
      "disk_interface": "virtio",
      "boot_wait": "5s",
      "boot_command":
      [
        "<enter><wait10><wait10>",
        "vyos<enter><wait>",
        "vyos<enter><wait>",
        "install image<enter><wait>",
        "<enter><wait>",
        "<enter><wait>",
        "<enter><wait>",
        "Yes<enter><wait>",
        "<enter><wait10>",
        "<enter><wait>",
        "<enter><wait>",
        "vyos<enter><wait>",
        "vyos<enter><wait>",
        "<enter><wait10>",
        "reboot<enter><wait>",
        "Yes<enter><wait10><wait10><wait10>",
        "vyos<enter><wait>",
        "vyos<enter><wait>",
        "configure<enter><wait>",
        "delete system console<enter><wait>",
        "set interface ethernet eth0 address dhcp<enter><wait>",
        "set service ssh<enter><wait>",
        "commit<enter><wait>",
        "save<enter><wait>",
        "exit<enter><wait>",
        "reboot<enter><wait>",
        "Yes<enter><wait10><wait10><wait10><wait10><wait10>"
      ]
    }
  ]
}