Packer build template

template.json

{
    "variables": {
        "ssh_username": "root",
        "ssh_password": "DpIVLUUSGQ89qQcb",
        "chef_version": "12.5.1",
        "chef_server": "{{env `CHEF_SERVER`}}",
        "hostname": "{{env `VBRICK_HOSTNAME`}}",
        "canonical_ami": "ami-33ea9424",
        "iso_name": "ubuntu-14.04.5-server-amd64.iso",
        "iso_source": "../../iso/",
        "iso_checksum": "dd54dc8cfc2a655053d19813c2f9aa9f",
        "iso_checksum_type": "md5",
        "preseed_path": "ubuntu-14.04.cis.cfg",
        "memory": "4096",
        "cpus": "2"
    },
    "builders": [{
        "type": "virtualbox-iso",
        "boot_command": ["<esc><wait>",
            "<esc><wait>",
            "<enter><wait>",
            "/install/vmlinuz",
            " auto=true",
            " priority=critical",
            " initrd=/install/initrd.gz",
            " DEBCONF_DEBUG=5",
            " packer/http=http://{{ .HTTPIP }}:{{ .HTTPPort }}",
            " preseed/url=http://{{ .HTTPIP }}:{{ .HTTPPort }}/{{user `preseed_path`}}",
            " -- ",
            "<enter>"
        ],
        "headless": true,
        "vrdp_bind_address": "0.0.0.0",
        "vrdp_port_min": 5900,
        "vrdp_port_max": 6000,
        "vm_name": "{{user `hostname`}}",
        "boot_wait": "10s",
        "disk_size": 20000,
        "hard_drive_interface": "sata",
        "guest_os_type": "Ubuntu_64",
        "http_directory": "resources",
        "iso_checksum": "{{user `iso_checksum`}}",
        "iso_checksum_type": "{{user `iso_checksum_type`}}",
        "iso_url": "{{user `iso_source`}}{{user `iso_name`}}",
        "format": "ova",
        "shutdown_command": "shutdown -P now",
        "ssh_username": "{{user `ssh_username`}}",
        "ssh_password": "{{user `ssh_password`}}",
        "ssh_wait_timeout": "10000s",
        "ssh_pty": true,
        "keep_registered": true,
        "guest_additions_mode": "disable",
        "virtualbox_version_file": ".vbox_version",
        "vboxmanage": [
            [
                "modifyvm",
                "{{.Name}}",
                "--memory", "{{ user `memory` }}"
            ], [
                "createhd",
            	"--filename", "output-virtualbox-iso/{{.Name}}-disk2.vdi",
                "--size", "60000"
            ], [
                "storageattach", "{{ .Name }}",
	            "--storagectl", "SATA Controller",
	            "--device", "0",
	            "--port", "1",
	            "--type", "hdd",
	            "--medium", "output-virtualbox-iso/{{.Name}}-disk2.vdi"
            ],
            [
                "modifyvm",
                "{{.Name}}",
                "--cpus", "{{ user `cpus` }}"
            ]
        ]
    }],
    "provisioners": [{
        "type": "file",
        "source": "resources/nessus_id_rsa.pub",
        "destination": "/tmp/nessus_id_rsa.pub",
        "only": ["virtualbox-iso"]
    }, {
        "type": "shell",
        "script": "resources/nessus.sh",
        "remote_folder": "/var/tmp",
        "only": ["virtualbox-iso"]
    }, {
        "type": "shell",
        "script": "resources/teardown.sh",
        "remote_folder": "/var/tmp",
        "except": ["virtualbox-iso"]
    }]
}