Customized cleanup.sh scripts for different Ubuntu versions.

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

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"
                     ]
                 }
             },

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"
                     ]
                 }
             },