add packer scripts, credit to quanon

buildozer/tools/packer/README.md

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+# Introduction
+
+It is an example packer template based on netboot iso that adds packages for xubuntu and buildozer.
+
+# Configure
+
+You want to edit `http/preseed.cfg` and `template.json` before building an image.
+
+# Build
+
+`packer build template.json`
+
+# Testing the image after it's built.
+
+`./launch`
+
+# TODO
+
+  - [compact the image](https://crysol.github.io/recipe/2013-10-15/virtualbox-compact-vmdk-images/)
+  - trigger a build, torrent creation and gdrive upload when buildozer is released

buildozer/tools/packer/http/preseed.cfg

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+### Options to set on the command line
+d-i debian-installer/locale string en_US.UTF-8
+d-i console-setup/ask_detect boolean false
+d-i keyboard-configuration/layoutcode string us
+d-i keyboard-configuration/variant string us
+
+### Network
+d-i netcfg/choose_interface select auto
+
+d-i netcfg/get_hostname string ubuntu
+d-i netcfg/get_domain string local
+
+d-i netcfg/wireless_wep string
+
+### Mirror
+d-i mirror/country string manual
+d-i mirror/http/hostname string jp.archive.ubuntu.com
+d-i mirror/http/directory string /ubuntu
+d-i mirror/http/proxy string
+
+### Time
+d-i time/zone string UTC
+d-i clock-setup/utc boolean true
+
+### Partitioning
+d-i partman-auto/method string lvm
+d-i partman-lvm/device_remove_lvm boolean true
+d-i partman-md/device_remove_md boolean true
+
+# Write the changes to disks and configure LVM?
+d-i partman-lvm/confirm boolean true
+d-i partman-lvm/confirm_nooverwrite boolean true
+
+d-i partman-auto-lvm/guided_size string max
+d-i partman-auto/choose_recipe select atomic
+d-i partman/default_filesystem string ext4
+
+# This makes partman automatically partition without confirmation, provided
+# that you told it what to do using one of the methods above.
+#d-i partman-partitioning/confirm_write_new_label boolean true
+d-i partman/confirm_write_new_label boolean true
+d-i partman/choose_partition select finish
+d-i partman/confirm boolean true
+d-i partman/confirm_nooverwrite boolean true
+
+### User Account
+
+# root account
+#d-i passwd/root-login boolean true
+#d-i passwd/make-user boolean false
+#d-i passwd/root-password password abcdabcd
+#d-i passwd/root-password-again password abcdabcd
+
+# a user account
+d-i passwd/user-fullname string kivy
+d-i passwd/username string kivy
+d-i passwd/user-password password kivy
+d-i passwd/user-password-again password kivy
+
+# you might want to configure auto login.
+#d-i passwd/auto-login boolean true
+
+d-i user-setup/allow-password-weak boolean true
+d-i user-setup/encrypt-home boolean false
+
+# You can choose to install restricted and universe software, or to install
+# software from the backports repository.
+d-i apt-setup/restricted boolean true
+d-i apt-setup/universe boolean true
+# d-i apt-setup/backports boolean true
+
+# Uncomment this if you don't want to use a network mirror.
+# d-i apt-setup/use_mirror boolean false
+
+# Select which update services to use; define the mirrors to be used.
+# Values shown below are the normal defaults.
+d-i apt-setup/services-select multiselect security
+d-i apt-setup/security_host string security.ubuntu.com
+d-i apt-setup/security_path string /ubuntu
+
+### Packages
+tasksel tasksel/first multiselect xubuntu-desktop
+
+d-i pkgsel/include string openssh-server build-essential ibus-hangul
+d-i pkgsel/upgrade select none
+d-i pkgsel/update-policy select none
+d-i pkgsel/language-packs multiselect en, ko
+# required by ubuntu server iso, but not required by netboot iso
+d-i pkgsel/install-language-support boolean true
+
+popularity-contest popularity-contest/participate boolean false
+
+d-i lilo-installer/skip boolean true
+
+### Bootloader
+d-i grub-installer/only_debian boolean true
+d-i grub-installer/with_other_os boolean true
+
+### Finishing
+d-i finish-install/reboot_in_progress note

buildozer/tools/packer/launch

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+#!/bin/sh
+
+/usr/bin/qemu-system-x86_64 -redir tcp:3213::22 -vga qxl -display sdl -netdev user,id=user.0 -device virtio-net,netdev=user.0 -drive file=output-from-netboot-iso/ubuntu.qcow2,if=virtio -boot once=d -name sanitytest -machine type=pc-1.0,accel=kvm -m 512M -vnc 0.0.0.0:47

buildozer/tools/packer/scripts/additional-packages.sh

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+#!/bin/bash -eux
+
+wget http://bootstrap.pypa.io/get-pip.py
+python get-pip.py
+rm get-pip.py
+apt-get -y install git openjdk-7-jdk --no-install-recommends zlib1g-dev
+pip install cython buildozer

buildozer/tools/packer/scripts/minimize.sh

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+#!/bin/bash
+
+# Remove APT cache
+apt-get -y --purge autoremove
+apt-get -y clean
+
+# Cleanup log files
+find /var/log -type f | while read f; do echo -ne '' > $f; done;
+
+# Whiteout root
+count=`df --sync -kP / | tail -n1  | awk -F ' ' '{print $4}'`;
+let count--
+dd if=/dev/zero of=/tmp/whitespace bs=1024 count=$count;
+rm /tmp/whitespace;
+
+# Whiteout /boot
+count=`df --sync -kP /boot | tail -n1 | awk -F ' ' '{print $4}'`;
+let count--
+dd if=/dev/zero of=/boot/whitespace bs=1024 count=$count;
+rm /boot/whitespace;
+
+swappart=`cat /proc/swaps | tail -n1 | awk -F ' ' '{print $1}'`
+swapoff $swappart;
+dd if=/dev/zero of=$swappart;
+mkswap $swappart;
+swapon $swappart;
+
+# Zero free space to aid VM compression
+dd if=/dev/zero of=/EMPTY bs=1M
+rm -f /EMPTY
+
+# Remove bash history
+unset HISTFILE
+rm -f /root/.bash_history

buildozer/tools/packer/template.json

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+{
+    "variables": {
+        "disk_size": "20480",
+        "disk_format": "ovf",
+        "ssh_username": "kivy",
+        "ssh_password": "kivy",
+        "hostname": "ubuntu"
+    },
+    "description": "Build a Xubuntu Virtual Machine",
+    "builders": [{
+        "type": "virtualbox-iso",
+        "name": "from-netboot-iso",
+        "http_directory": "http",
+        "iso_checksum": "4c58dcf09083cd3aa602eb1b79810a0ff58b7c21",
+        "iso_checksum_type": "sha1",
+        "iso_url": "http://archive.ubuntu.com/ubuntu/dists/vivid/main/installer-i386/current/images/netboot/mini.iso",
+        "ssh_username": "{{user `ssh_username`}}",
+        "ssh_password": "{{user `ssh_password`}}",
+        "boot_wait": "3s",
+        "boot_command": [
+            "<esc><wait>",
+            "/linux noapic preseed/url=http://{{.HTTPIP}}:{{.HTTPPort}}/preseed.cfg ",
+            "hostname={{user `hostname`}} ",
+            "debian-installer=en_US auto locale=en_US kbd-chooser/method=us ",
+            "fb=false ",
+            "keyboard-configuration/modelcode=SKIP keyboard-configuration/layout=USA ",
+            "keyboard-configuration/variant=USA console-setup/ask_detect=false ",
+            "initrd=/initrd.gz -- <enter>"
+        ],
+        "disk_size": "{{user `disk_size`}}",
+        "format": "{{user `disk_format`}}",
+        "headless": false,
+        "shutdown_command": "echo {{user `ssh_password`}} | sudo -S shutdown -P now",
+        "vm_name": "ubuntu",
+        "ssh_wait_timeout": "120m"
+    }],
+    "provisioners": [{
+        "type": "shell",
+        "execute_command": "echo {{user `ssh_password`}} | {{ .Vars }} sudo -E -S sh '{{ .Path }}'",
+        "scripts": [
+            "scripts/additional-packages.sh",
+            "scripts/minimize.sh"
+        ]
+    }],
+    "post-processors": []
+}