Clean Ubuntu machines for provisioning

ubuntu-clean.sh

# Remove items used for building, since they aren't needed anymore
#https://github.com/riywo/packer-example/blob/master/scripts/cleanup.sh
set -x

#Stop Logging
service rsyslog stop

# Clean Logging
logrotate –f /etc/logrotate.conf
rm –f /var/log/*-???????? /var/log/*.gz
rm -f /var/log/dmesg.old
rm -rf /var/log/anaconda

cat /dev/null > /var/log/auth.log
cat /dev/null > /var/log/wtmp
cat /dev/null > /var/log/lastlog

# Remove Headers

#apt-get -y remove linux-headers-$(uname -r) build-essential
apt-get -y autoremove
apt-get -y clean

#Clean up tmp
rm -rf /tmp/*
rm -rf /var/tmp/*

#Clean SSH
rm -f /etc/ssh/*key*
dpkg-reconfigure openssh-server

#Clean root user

rm -f ~root/.bash_history
rm -rf ~root/.ssh/
rm -f ~root/anaconda-ks.cfg

unset HISTFILE

# Removing leftover leases and persistent rules
echo "cleaning up dhcp leases"
if [ -d "/var/lib/dhcp" ]; then
    # Remove leftover leases and persistent rules
    echo "cleaning up dhcp leases"
    rm /var/lib/dhcp/*
fi

# Make sure Udev doesn't block our network
# http://6.ptmc.org/?p=164
echo "cleaning up udev rules"
rm -rf /etc/udev/rules.d/70-persistent-net.rules/*
rm -rf /dev/.udev/
rm /lib/udev/rules.d/75-persistent-net-generator.rules

echo "Adding a 2 sec delay to the interface up, to make the dhclient happy"
echo "pre-up sleep 2" >> /etc/network/interfaces
exit