alpine.json

{
  "description": "Build base Alpine Linux x86_64",
  "variables": {
    "vm_name": "alpine-3.10.1-x86_64",
    "cpus": "1",
    "memory": "2048",
    "disk_size": "10240",
    "iso_local_url": "iso/alpine-virt-3.10.1-x86_64.iso",
    "iso_download_url": "http://dl-cdn.alpinelinux.org/alpine/v3.10/releases/x86_64/alpine-virt-3.10.1-x86_64.iso",
    "iso_checksum": "b5cce7d94652e547f07b7dc9e55b1f0b258180b474408e543241be12e0ae255d",
    "iso_checksum_type": "sha256",
    "root_password": "packer",
    "ssh_username": "packer",
    "ssh_password": "packer",
    "ip_address": "192.168.56.10",
    "ip_netmask": "255.255.255.0"
  },
  "provisioners": [
  ],
  "builders": [
    {
      "type": "virtualbox-iso",
      "headless": false,
      "vm_name": "{{user `vm_name`}}",
      "format": "ova",
      "guest_os_type": "Linux26_64",
      "guest_additions_mode": "disable",
      "disk_size": "{{user `disk_size`}}",
      "iso_urls": [
        "{{user `iso_local_url`}}",
        "{{user `iso_download_url`}}"
      ],
      "iso_checksum": "{{user `iso_checksum`}}",
      "iso_checksum_type": "{{user `iso_checksum_type`}}",
      "http_directory": "http",
      "communicator": "ssh",
      "ssh_username": "{{user `ssh_username`}}",
      "ssh_password": "{{user `ssh_password`}}",
      "ssh_wait_timeout": "10m",
      "shutdown_command": "echo {{user `ssh_password`}} | sudo -S /sbin/poweroff",
      "boot_wait": "15s",
      "boot_command": [
        "root<enter><wait>",
        "ifconfig eth0 up && udhcpc -i eth0<enter><wait10>",
        "wget http://{{ .HTTPIP }}:{{ .HTTPPort }}/answers<enter><wait>",
        "wget http://{{ .HTTPIP }}:{{ .HTTPPort }}/install.sh<enter><wait>",
        "chmod +x install.sh<enter><wait>",
        "./install.sh {{user `ip_address`}} {{user `ip_netmask`}}<enter><wait>",
        "{{user `ssh_username`}}<enter><wait>",
        "{{user `ssh_password`}}<enter><wait>",
        "<wait10>",
        "apk add haveged<enter><wait5>",
        "rc-update add haveged<enter><wait>",
        "rc-service haveged start<enter><wait>",
        "setup-alpine -f $PWD/answers<enter>",
        "<wait10>",
        "{{user `root_password`}}<enter><wait>",
        "{{user `root_password`}}<enter><wait>",
        "<wait30>",
        "y<enter>",
        "<wait60>",
        "reboot<enter>",
        "<wait20>",
        "root<enter><wait>",
        "{{user `root_password`}}<enter>",
        "<wait5>",
        "adduser {{user `ssh_username`}}<enter><wait>",
        "{{user `ssh_password`}}<enter><wait>",
        "{{user `ssh_password`}}<enter><wait>",
        "echo 'Defaults env_keep += \"http_proxy https_proxy\"' > /etc/sudoers.d/wheel<enter><wait>",
        "echo '%wheel ALL=(ALL) ALL' >> /etc/sudoers.d/wheel<enter><wait>",
        "adduser {{user `ssh_username`}} wheel<enter><wait>",
        "reboot<enter>",
        "<wait20>",
        "root<enter><wait>",
        "{{user `root_password`}}<enter><wait>",
        "echo '' > /etc/motd<enter><wait>"
      ],
      "hard_drive_interface": "sata",
      "vboxmanage": [
        [
          "modifyvm",
          "{{.Name}}",
          "--memory",
          "{{user `memory`}}"
        ],
        [
          "modifyvm",
          "{{.Name}}",
          "--cpus",
          "{{user `cpus`}}"
        ],
        [
          "modifyvm",
          "{{.Name}}",
          "--rtcuseutc",
          "on"
        ],
        [
          "modifyvm",
          "{{.Name}}",
          "--nic1",
          "nat"
        ],
        [
          "modifyvm",
          "{{.Name}}",
          "--nic2",
          "hostonly",
          "--hostonlyadapter2",
          "VirtualBox Host-Only Ethernet Adapter"
        ],
        [
          "modifyvm",
          "{{.Name}}",
          "--vram",
          "16"
        ],
        [
          "modifyvm",
          "{{.Name}}",
          "--nested-hw-virt",
          "on"
        ],
        [
          "modifyvm",
          "{{.Name}}",
          "--cpus",
          "2"
        ]
      ]
    }
  ]
}