template.json

{
  "variables": {
    "name": "krastin/nginx64",
    "build_name": "nginx64",
    "build_cpu_cores": "2",
    "build_memory": "1024",
    "cpu_cores": "1",
    "memory": "512",
    "disk_size": "40960",
    "headless": "false",
    "iso_checksum": "737ae7041212c628de5751d15c3016058b0e833fdc32e7420209b76ca3d0a535",
    "iso_checksum_type": "sha256",
    "iso_url": "http://releases.ubuntu.com/16.04.2/ubuntu-16.04.2-server-amd64.iso",
    "ssh_username": "vagrant",
    "ssh_password": "vagrant"
  },
  "push": {
    "name": "{{user `name`}}",
    "exclude": [
      ".git",
      "packer_cache",
      "output*-vbox",
      "output*-vmware",
      "*.box"
    ]
  },
  "builders": [
    {
      "type": "amazon-ebs",
      "region": "us-east-1",
      "source_ami": "ami-07b4156579ea1d7ba",
      "instance_type": "t2.micro",
      "ssh_username": "ubuntu",
      "ami_name": "nginx64_packer_example_{{timestamp}}",
      "tags": {
        "OS Version": "Ubuntu",
        "Release": "Latest"
      }
    },
    {
      "name": "{{ user `build_name` }}-vbox",
      "vm_name": "{{ user `build_name` }}-vbox",
      "boot_command": [
        "<enter><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><bs><bs>",
        "preseed/url=http://{{ .HTTPIP }}:{{ .HTTPPort }}/preseed.cfg ",
        "debian-installer=en_US auto locale=en_US kbd-chooser/method=us ",
        "hostname={{ user `build_name` }} ",
        "fb=false debconf/fronten=d=noninteractive ",
        "keyboard-configuration/modelcode=SKIP keyboard-configuration/layout=USA keyboard-configuration/variant=USA console-setup/ask_detect=false ",
        "initrd=/install/initrd.gz -- <enter>"
      ],
      "boot_wait": "5s",
      "disk_size": "{{user `disk_size`}}",
      "guest_additions_path": "VBoxGuestAdditions_{{.Version}}.iso",
      "guest_os_type": "Ubuntu_64",
      "headless": "{{user `headless`}}",
      "http_directory": "http",
      "iso_checksum": "{{user `iso_checksum`}}",
      "iso_checksum_type": "{{user `iso_checksum_type`}}",
      "iso_url": "{{user `iso_url`}}",
      "shutdown_command": "echo 'vagrant' | sudo -S poweroff",
      "post_shutdown_delay": "2m",
      "ssh_password": "{{user `ssh_username`}}",
      "ssh_username": "{{user `ssh_password`}}",
      "ssh_wait_timeout": "20m",
      "type": "virtualbox-iso",
      "vboxmanage": [
        [
          "modifyvm",
          "{{.Name}}",
          "--memory",
          "{{user `build_memory`}}"
        ],
        [
          "modifyvm",
          "{{.Name}}",
          "--natpf1",
          "guest_80,tcp,,8080,,80"
        ],
        [
          "modifyvm",
          "{{.Name}}",
          "--cpus",
          "{{user `build_cpu_cores`}}"
        ]
      ],
      "vboxmanage_post": [
        [
          "modifyvm",
          "{{.Name}}",
          "--memory",
          "{{user `memory`}}"
        ],
        [
          "modifyvm",
          "{{.Name}}",
          "--cpus",
          "{{user `cpu_cores`}}"
        ]
      ],
      "virtualbox_version_file": ".vbox_version"
    }
  ],
  "provisioners": [
    {
      "execute_command": "echo 'vagrant' | {{.Vars}} sudo -E -S bash '{{.Path}}'",
      "script": "scripts/provision.sh",
      "type": "shell"
    }
  ],
  "post-processors": [
    {
      "type": "vagrant",
      "keep_input_artifact": true,
      "output": "{{.BuildName}}.box"
    }
  ]
}