Shellscript for clean our VM images

Clean_VM_images

# Mount the img (qcow2)
guestmount -a my_vm.qcow2 -i /mnt/my_vm —rw

# Hacemos chroot
chroot /mnt/my_vm

# Clean yum information
/usr/bin/yum —enablerepo=extra,repos,if,apply clean all

# Rotate logs
/usr/sbin/logrotate -f /etc/logrotate.conf 
/bin/rm -f /var/log/*-???????? /var/log/*.gz

# Clear the audit log
/bin/cat /dev/null > /var/log/audit/audit.log
/bin/cat /dev/null > /var/log/wtmp

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

# Remove the traces of the template MAC address and UUIDs
for vif in /etc/sysconfig/network-scripts/ifcfg-eth?; do
  /bin/sed -i ‘/^\(HWADDR\|UUID\)=/d’ ${vif}
done

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

# Remove SSH host keys
/bin/rm -f /etc/ssh/*_key /etc/ssh/*_key.pub

# Clean
/bin/rm -f ~root/.bash_history
unset HISTFILE

# Unmount FS
umount /mnt/my_vm