Sha256: 26a2d553fbe8e53d47da2cd5b650a709ce7bc8f303c653a708102959822ac293
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Size: 1.59 KB
Versions: 7
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Stored size: 1.59 KB
Contents
#!/bin/bash
##
# Purge unnecessary data from the image to keep it small.
#
# Based on: https://gist.github.com/adrienbrault/3775253
##
# tidy up DCHP leases
echo "Cleaning up dhcp..."
rm /var/lib/dhcp/*
# make sure Udev doesn't block our network
# except on systemd systems where this isn't used
# http://6.ptmc.org/?p=164
case $(lsb_release -cs) in
"wily" | "xenial")
;;
*)
echo "Cleaning up udev..."
rm /etc/udev/rules.d/70-persistent-net.rules
mkdir /etc/udev/rules.d/70-persistent-net.rules
rm -rf /dev/.udev/
rm /lib/udev/rules.d/75-persistent-net-generator.rules
;;
esac
# clean up apt
echo "Cleaning up apt..."
apt-get -qy autoremove
apt-get clean -qy
apt-get autoclean -qy
# nuke the bash history
echo "Removing bash history..."
unset HISTFILE
rm -f /root/.bash_history
rm -f /home/vagrant/.bash_history
# clean up the logs
echo "Cleaning up logs..."
find /var/log -type f | while read f; do echo -ne '' > $f; done;
# zero any and all free space
echo "Cleaning free space..."
dd if=/dev/zero of=/EMPTY bs=1M
rm -f /EMPTY
# whiteout root
echo "Cleaning up /..."
#count=`df --sync -kP / | tail -n1 | awk -F ' ' '{print $4}'`;
dd if=/dev/zero of=/tmp/whitespace bs=1024;
rm /tmp/whitespace;
# whiteout /boot
echo "Cleaning up /boot..."
#count=`df --sync -kP /boot | tail -n1 | awk -F ' ' '{print $4}'`;
dd if=/dev/zero of=/boot/whitespace bs=1024;
rm /boot/whitespace;
# whiteout the swap
echo "Cleaning up swap partitions..."
swappart=`cat /proc/swaps | tail -n1 | awk -F ' ' '{print $1}'`
swapoff $swappart;
dd if=/dev/zero of=$swappart;
mkswap $swappart;
swapon $swappart;
Version data entries
7 entries across 7 versions & 1 rubygems