add alpine example for virtualbox-iso

examples/hcl/linux/build.alpine.pkr.hcl

@@ -0,0 +1,28 @@
+
+build {
+  name = "alpine"
+  description = <<EOF
+This build creates alpine images for versions :
+* v3.8
+For the following builers :
+* virtualbox-iso
+EOF
+
+  // the common fields of the source blocks are defined in the
+  // source.builder-type.pkr.hcl files, here we only set the fields specific to
+  // the different versions of ubuntu.
+  source "source.virtualbox-iso.base-alpine-amd64" {
+    name                    = "3.8"
+    iso_url                 = local.iso_url_alpine_380
+    iso_checksum            = "file:${local.iso_checksum_url_alpine_380}"
+    output_directory        = "virtualbox_iso_alpine_380_amd64"
+    boot_command            = local.alpine_380_floppy_boot_command
+    floppy_files            = local.floppy_files
+    boot_wait               = "10s"
+  }
+
+
+  provisioner "shell" {
+    inline = ["echo hi"]
+  }
+}

examples/hcl/linux/etc/http/alpine-answers

@@ -0,0 +1,15 @@
+KEYMAPOPTS="us us"
+HOSTNAMEOPTS="-n alpine"
+INTERFACESOPTS="auto lo
+iface lo inet loopback
+
+auto eth0
+iface eth0 inet dhcp
+    hostname alpine
+"
+TIMEZONEOPTS="-z UTC"
+PROXYOPTS="none"
+APKREPOSOPTS="http://mirror.yandex.ru/mirrors/alpine/v3.8/main"
+SSHDOPTS="-c openssh"
+NTPOPTS="-c none"
+DISKOPTS="-m sys /dev/sda"

examples/hcl/linux/etc/http/alpine-setup.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+set -ex
+
+apk add libressl
+apk add open-vm-tools
+rc-update add open-vm-tools
+/etc/init.d/open-vm-tools start
+
+cat >/usr/local/bin/shutdown <<EOF
+#!/bin/sh
+poweroff
+EOF
+chmod +x /usr/local/bin/shutdown
+
+sed -i "/#PermitRootLogin/c\PermitRootLogin yes" /etc/ssh/sshd_config
+sed -i "/#PasswordAuthentication/c\PasswordAuthentication yes" /etc/ssh/sshd_config
+mkdir ~/.ssh
+# copy ssy key ?

examples/hcl/linux/source.virtualbox-iso.pkr.hcl

@@ -12,3 +12,14 @@ source "virtualbox-iso" "base-ubuntu-amd64" {
     guest_additions_path    = "VBoxGuestAdditions_{{.Version}}.iso"
     guest_additions_url     = var.guest_additions_url
 }
+
+source "virtualbox-iso" "base-alpine-amd64" {
+    headless                = var.headless
+    guest_os_type           = "Linux26_64"
+    http_directory          = local.http_directory
+    hard_drive_interface    = "sata"
+    ssh_username            = "root"
+    ssh_password            = var.alpine_password
+    ssh_wait_timeout        = "60m"
+    shutdown_command        = "poweroff"
+}

examples/hcl/linux/variables.alpine.pkr.hcl

@@ -0,0 +1,33 @@
+
+variable "alpine_password" {
+  type = string
+  default = "alpine"
+}
+
+locals {
+  iso_url_alpine_380             = "http://dl-cdn.alpinelinux.org/alpine/v3.8/releases/x86_64/alpine-standard-3.8.0-x86_64.iso"
+  iso_checksum_url_alpine_380    = "http://dl-cdn.alpinelinux.org/alpine/v3.8/releases/x86_64/alpine-standard-3.8.0-x86_64.iso.sha256"
+  floppy_files = [
+    "${local.http_directory}/alpine-answers",
+    "${local.http_directory}/alpine-setup.sh"
+  ]
+  alpine_380_floppy_boot_command = [
+    "root<enter><wait>",
+    "mount -t vfat /dev/fd0 /media/floppy<enter><wait>",
+    "setup-alpine -f /media/floppy/alpine-answers<enter>",
+    "<wait5>",
+    "${var.alpine_password}<enter>",
+    "${var.alpine_password}<enter>",
+    "<wait5>",
+    "y<enter>",
+    "<wait40s>",
+    "reboot<enter>",
+    "<wait20s>",
+    "root<enter>",
+    "${var.alpine_password}<enter><wait>",
+    "mount -t vfat /dev/fd0 /media/floppy<enter><wait>",
+    "/media/floppy/alpine-setup.sh<enter>",
+    "reboot<enter>",
+  ]
+
+}