alpine2docker.json

{
  "description": "Build a minimalistic VM for Docker with Linux Alpine",
  "variables": {
    "BASE_USER": "alpine",
    "BOX_FILE": "{{ env `BOX_FILE`}}"
  },
  "builders": [
    {
      "name": "vbox",
      "type": "virtualbox-iso",
      "headless": true,
      "vboxmanage": [
        ["modifyvm","{{.Name}}","--cpus","1"],
        ["modifyvm","{{.Name}}","--memory","1024"],
        ["modifyvm","{{.Name}}","--cableconnected1","on"],
        ["modifyvm","{{.Name}}","--audio","none"],
        ["modifyvm","{{.Name}}","--usb","off"]
      ],
      "disk_size": 40960,
      "guest_os_type": "Linux26_64",
      "iso_urls": [
        "http://dl-cdn.alpinelinux.org/alpine/v3.11/releases/x86_64/alpine-virt-3.11.2-x86_64.iso"
      ],
      "iso_checksum": "fbedd5fa113eee18876c293177d251b851bfe496a78b080b13e30ba1fd184bb2",
      "iso_checksum_type": "sha256",
      "communicator": "ssh",
      "http_directory": "./http",
      "boot_wait": "20s",
      "boot_command": [
        "root<enter><wait>",
        "ifconfig eth0 up && udhcpc -i eth0<enter><wait>",
        "wget -O /tmp/answers http://{{ .HTTPIP }}:{{ .HTTPPort }}/answers<enter><wait>",
        "setup-alpine -f /tmp/answers<enter><wait5>",
        "root<enter><wait>",
        "root<enter><wait>",
        "<wait10><wait10>",
        "y<enter>",
        "<wait10><wait10>",
        "<wait10><wait10>",
        "<wait10><wait10>",
        "rc-service sshd stop<enter>",
        "mount /dev/vg0/lv_root /mnt<enter>",
        "echo 'PermitRootLogin yes' >> /mnt/etc/ssh/sshd_config<enter>",
        "umount /mnt<enter>",
        "reboot<enter>"
      ],
      "guest_additions_mode": "disable",
      "virtualbox_version_file": ".vbox_version",
      "ssh_username": "root",
      "ssh_password": "root",
      "ssh_wait_timeout": "10m",
      "shutdown_command": "/sbin/poweroff"
    }
  ],
  "provisioners": [
    {
      "type": "shell",
      "execute_command": "{{ .Vars }} /bin/sh '{{ .Path }}'",
      "environment_vars": [
        "BASE_USER={{user `BASE_USER`}}"
      ],
      "scripts": [
        "./scripts/base.sh",
        "./scripts/vagrant.sh",
        "./scripts/sudoers.sh",
        "./scripts/docker.sh"
      ]
    },
    {
      "type": "file",
      "source": "./customize/",
      "destination": "/var/customize/",
      "pause_before": "30s"
    },
    {
      "type": "shell",
      "execute_command": "{{ .Vars }} /bin/sh '{{ .Path }}'",
      "environment_vars": [
        "BASE_USER={{user `BASE_USER`}}"
      ],
      "scripts": [
        "./scripts/sshd.sh",
        "./scripts/customize.sh",
        "./scripts/clean.sh"
      ]
    }
  ],
  "post-processors": [
    {
      "type": "vagrant",
      "only": ["vbox"],
      "vagrantfile_template": "vagrantfile-box.tpl",
      "output": "{{user `BOX_FILE`}}"
    }
  ]
}