template.json #2

{
	"builders": [{
		"type": "virtualbox-iso",
		"guest_os_type": "Ubuntu_64",
		"iso_url": "http://releases.ubuntu.com/16.04/ubuntu-16.04.2-server-amd64.iso",
		"iso_checksum": "737ae7041212c628de5751d15c3016058b0e833fdc32e7420209b76ca3d0a535",
		"iso_checksum_type": "sha256",
		"output_directory": "output-ubuntu-consul",
		"vm_name": "ubuntu-consul-16.04-amd64",
		"disk_size": 15000,
		"headless": "true",
		"http_directory": "http",
		"boot_wait": "5s",
		"boot_command": [
			"<enter><wait>",
			"<f6><esc>",
			"<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
			"<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
			"<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
			"<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
			"<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
			"<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
			"<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
			"<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
			"<bs><bs><bs>",
			"/install/vmlinuz ",
			"initrd=/install/initrd.gz ",
			"net.ifnames=0 ",
			"auto-install/enable=true ",
			"debconf/priority=critical ",
			"preseed/url=http://{{.HTTPIP}}:{{.HTTPPort}}/preseed.cfg",
			"<enter>"
		],
		"ssh_timeout": "60m",
		"ssh_username": "ubuntu",
		"ssh_password": "ubuntu",
		"shutdown_command": "sudo systemctl poweroff",
		"vboxmanage": [
			["modifyvm", "{{.Name}}", "--memory", 512],
			["modifyvm", "{{.Name}}", "--cpus", 1]
		]
	}],
	"provisioners": [
	]
}