From 1b695a5c30fd7fb8be45ce1eb9a98b7ca7492951 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20L=2E=20Pati=C3=B1o?= <jose.lpa@gmail.com>
Date: Wed, 28 Dec 2016 19:55:34 +0000
Subject: [PATCH] Customized `cleanup.sh` scripts for different Ubuntu
 versions.

---
 scripts/{cleanup.sh => cleanup-14.04.sh} |  0
 scripts/cleanup-16.04.sh                 | 56 ++++++++++++++++++++++++
 ubuntu-14.04-amd64.json                  |  2 +-
 ubuntu-16.04-amd64.json                  |  2 +-
 4 files changed, 58 insertions(+), 2 deletions(-)
 rename scripts/{cleanup.sh => cleanup-14.04.sh} (100%)
 create mode 100755 scripts/cleanup-16.04.sh

diff --git a/scripts/cleanup.sh b/scripts/cleanup-14.04.sh
similarity index 100%
rename from scripts/cleanup.sh
rename to scripts/cleanup-14.04.sh
diff --git a/scripts/cleanup-16.04.sh b/scripts/cleanup-16.04.sh
new file mode 100755
index 0000000..69049a4
--- /dev/null
+++ b/scripts/cleanup-16.04.sh
@@ -0,0 +1,56 @@
+# Reducing the final size of the image to help Packer build a less big box.
+# Credits to Vinicius Massuchetto and his helpful post in GitHub:
+# http://vmassuchetto.github.io/2013/08/14/reducing-a-vagrant-box-size/
+
+# Clean up APT packages
+apt-get -y --purge remove linux-headers-$(uname -r) build-essential
+apt-get -y autoremove
+apt-get -y clean
+
+# Removing leftover leases and persistent rules
+echo "Cleaning up dhcp leases"
+rm /var/lib/dhcp/*
+
+# Make sure Udev doesn't block our network
+echo "Cleaning up udev rules"
+rm -rfv /dev/.udev/
+rm -v /lib/udev/rules.d/75-persistent-net-generator.rules
+
+# Remove Linux headers
+rm -rfv /usr/src/linux-headers*
+
+# Remove Virtualbox specific files
+rm -rfv /usr/src/vboxguest* /usr/src/virtualbox-ose-guest*
+
+# Clean any Python bytecode
+find / -type f -name "*.pyc" -delete
+
+# Whiteout root
+echo "Whiteouting /"
+count=`df --sync -kP / | tail -n1  | awk -F ' ' '{print $4}'`;
+count=$((count -= 1))
+dd if=/dev/zero of=/tmp/whitespace bs=1024 count=$count;
+rm /tmp/whitespace;
+ 
+# Whiteout /boot
+echo "Whiteouting /boot"
+count=`df --sync -kP /boot | tail -n1 | awk -F ' ' '{print $4}'`;
+count=$((count -= 1))
+dd if=/dev/zero of=/boot/whitespace bs=1024 count=$count;
+rm /boot/whitespace;
+ 
+# Whiteout swap 
+echo "Whiteouting swap"
+swappart=`cat /proc/swaps | tail -n1 | awk -F ' ' '{print $1}'`
+swapoff $swappart;
+dd if=/dev/zero of=$swappart;
+mkswap $swappart;
+swapon $swappart;
+
+# Zero out the rest of the free space using dd.
+echo "Zero out the free space to aid VM compression"
+dd if=/dev/zero of=/EMPTY bs=1M
+rm -f /EMPTY
+
+echo "Adding a 2 sec delay to the interface up, to make the dhclient happy"
+echo "pre-up sleep 2" >> /etc/network/interfaces
diff --git a/ubuntu-14.04-amd64.json b/ubuntu-14.04-amd64.json
index 3374163..df56db4 100644
--- a/ubuntu-14.04-amd64.json
+++ b/ubuntu-14.04-amd64.json
@@ -77,7 +77,7 @@
                         "scripts/python.sh",
                         "scripts/virtualbox.sh",
                         "scripts/docker-14.04.sh",
-                        "scripts/cleanup.sh"
+                        "scripts/cleanup-14.04.sh"
                     ]
                 }
             },
diff --git a/ubuntu-16.04-amd64.json b/ubuntu-16.04-amd64.json
index 3ddb6b8..e40a3cc 100644
--- a/ubuntu-16.04-amd64.json
+++ b/ubuntu-16.04-amd64.json
@@ -73,7 +73,7 @@
                         "scripts/python.sh",
                         "scripts/virtualbox.sh",
                         "scripts/docker-16.04.sh",
-                        "scripts/cleanup.sh"
+                        "scripts/cleanup-16.04.sh"
                     ]
                 }
             },