sample-local.json

{
  "variables": {
    "version" : "1.0.{{timestamp}}",
    "http":"http",
    "ks_file": "/foo.cfg",
    "distribution":"",
    "scripts_path":"scripts/foo",
    "name":"packer-foo-7-x86_64",
    "shutdown":"echo 'vagrant'|sudo -S /sbin/halt -h -p",
    "iso_base_url": "iso",
    "iso_checksum_type": "sha256",
    "username": "vagrant",
    "password": "vagrant",
    "disk_size": "40960",
    "timeout": "300m",
    "headless": "true",
    "iso_checksum": "foobarchecksum"
  },
  "builders": [
    {
      "type": "qemu",
      "qemu_binary": "/usr/libexec/qemu-kvm",
      "iso_urls": [
        "{{user `iso_base_url`}}/.iso",
        "http://iso"
      ],
      "iso_checksum": "{{user `iso_checksum`}}",
      "iso_checksum_type": "{{user `iso_checksum_type`}}",
      "ssh_username": "{{user `username`}}",
      "ssh_password": "{{user `password`}}",
      "ssh_wait_timeout": "{{user `timeout`}}",
      "disk_size": "{{user `disk_size`}}",
      "headless": "{{user `headless`}}",
      "format": "{{user `format`}}",
      "accelerator": "kvm",
      "net_device": "virtio-net",
      "disk_interface": "virtio",
      "http_directory": "{{user `http`}}",
      "boot_command": [
        ""
      ],
      "shutdown_command": "{{user `shutdown`}}",
      "qemuargs": [[ "-m", "2048M" ],[ "-smp", "2" ]],
      "vm_name": "{{user `name`}}"
    },
    {
      "type": "virtualbox-iso",
      "iso_urls": [
        "{{user `iso_base_url`}}/.iso",
        "http://.iso"
      ],
      "iso_checksum": "{{user `iso_checksum`}}",
      "iso_checksum_type": "{{user `iso_checksum_type`}}",
      "ssh_username": "{{user `username`}}",
      "ssh_password": "{{user `password`}}",
      "ssh_wait_timeout": "{{user `timeout`}}",
      "disk_size": "{{user `disk_size`}}",
      "guest_os_type": "RedHat_64",
      "headless": "{{user `headless`}}",
      "http_directory": "{{user `http`}}",
      "boot_command": [
        ""
      ],
      "shutdown_command": "{{user `shutdown`}}",
      "virtualbox_version_file": ".vbox_version",
      "vm_name": "{{user `name`}}",
      "vboxmanage": [
        [
          "modifyvm",
          "{{.Name}}",
          "--memory",
          "2048"
        ],
        [
          "modifyvm",
          "{{.Name}}",
          "--cpus",
          "2"
        ]
      ]
    }
  ],
  "provisioners": [
    {
    "type": "shell",
    "execute_command": "echo 'vagrant' | {{.Vars}} sudo -S -E bash '{{.Path}}'",
    "scripts": [
      "{{user `scripts_path`}}/vagrant.sh",
      "{{user `scripts_path`}}/update.sh",
      "{{user `scripts_path`}}/sshd.sh",
      "{{user `scripts_path`}}/cleanup.sh"
    ]
  }
],
  "post-processors": [
    [
    {
      "output": "builds/{{user `distribution`}}-{{.Provider}}.box",
      "compression_level": 9,
      "type": "vagrant"
    }
  ]
 ]
}