template.json

{
    "variables": {
	"iso_url": null
	, "iso_checksum": null
	, "iso_checksum_type": null
	, "minor_version": null
	, "headless": "false"
    },
    "provisioners": [
	{
	    "type": "shell",
	    "execute_command": "echo 'vagrant'|{{ .Vars }} sudo -E -S bash '{{.Path}}'",
	    "override": {
		"virtualbox-iso": {
		    "scripts": [
			".ovs/networks.sh"
			, ".ovs/cleanup.sh"
		    ]
		}
	    }
	}
    ],
    "post-processors": [
	{
	    "type": "vagrant",
	    "override": {
		"virtualbox": {
		    "output": "ovs-{{ user `minor_version` }}.box"
		}
	    }
	}
    ],
    "builders": [
	{
	    "type": "virtualbox-iso",
	    "boot_command": [
		"mboot.c32 xen.gz --- vmlinuz ksdevice=eth0 ks=http://{{ .HTTPIP }}:{{ .HTTPPort }}/ks-{{user `minor_version`}}.cfg  --- initrd.img <enter><wait>"
	    ],
	    "boot_wait": "10s",
	    "disk_size": 12228,
	    "guest_os_type": "Oracle_64",
	    "headless": "{{ user `headless` }}",
	    "http_directory": "http",
            "iso_checksum": "{{user `iso_checksum`}}",
	    "iso_checksum_type": "{{user `iso_checksum_type`}}",
	    "iso_url": "{{user `iso_url`}}",
	    "ssh_username": "vagrant",
	    "ssh_password": "vagrant",
	    "ssh_port": 22,
	    "ssh_wait_timeout": "40m",
	    "shutdown_command": "echo '/sbin/halt -h -p' > /tmp/shutdown.sh; echo 'vagrant'|sudo -S sh '/tmp/shutdown.sh'",
	    "guest_additions_mode" : "disable",
	    "virtualbox_version_file": ".vbox_version",
	    "vboxmanage": [
		[ "modifyvm", "{{.Name}}", "--memory", "2048", "--vram", "10" ]
		, [ "modifyvm", "{{.Name}}", "--cpus", "2" ]
		, [ "modifyvm", "{{.Name}}", "--nic2", "intnet", "--intnet2", "intnet_2"]
	    ] 
	    , "vm_name": "ovs-{{ user `minor_version` }}"
	}
    ]
}