Perform cleanup of Linux template creation for vagrant

cleanup_vagrant_template.sh

# Stop logging services.
systemctl stop rsyslog
systemctl stop auditd

# Remove old kernels
yum install yum-utils -y
package-cleanup --oldkernels --count=1 -y

# Clean out yum
yum clean all

# Force the logs to rotate & remove old logs
logrotate --force /etc/logrotate.conf
rm -f /var/log/*-???????? /var/log/*.gz
rm -f /var/log/dmesg.old
rm -rf /var/log/anaconda
rm -f /var/log/vboxadd-*

# Truncate the logs 
cat /dev/null > /var/log/audit/audit.log
cat /dev/null > /var/log/dmesg
cat /dev/null > /var/log/wtmp
cat /dev/null > /var/log/btmp
cat /dev/null > /var/log/lastlog
cat /dev/null > /var/log/grubby

# Remove the udev persistent device rules
rm -f /etc/udev/rules.d/70*

# Remove the traces of the template MAC address and UUIDs
sed -i '/^\(NETBOOT\|IPV6\|HWADDR\|UUID\)/d' /etc/sysconfig/network-scripts/ifcfg-eth*

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

# Remove the root user’s SSH history & other cruft
rm -rf ~root/.ssh/
rm -f ~root/anaconda-ks.cfg

# zero out the drive
dd if=/dev/zero of=/EMPTY bs=1M
sync
rm -f /EMPTY

# clear the bash_history and exit root
cat /dev/null > ~/.bash_history && history -c && unset HISTFILE && exit
cat /dev/null > ~/.zhistory && echo $HISTFILE && rm $HISTFILE && exit