# source - https://gist.github.com/geoffreyanderson/1004950

imageFile=${1:-"awsImage-$(date +%m%d%y-%H%M).img"}
imageMountPoint=${2:-'/mnt/image'}

echo "Creating empty 10GB image in ${imageFile}"
# Create an empty 10GB image file
dd if=/dev/zero of=${imageFile} bs=1M count=10240

echo "Creating filesystem in ${imageFile}"
# Create a filesystem on the image file
/sbin/mke2fs -F -j ${imageFile}

echo "Mounting ${imageFile} loopback at ${imageMountPoint}"
# Create the directories needed for imaging
mkdir -p ${imageMountPoint}
mount -o loop ${imageFile} ${imageMountPoint}

echo "Beginning rsync..."
rsync --stats -av --exclude=/root/.bash_history --exclude=/home/*/.bash_history --exclude=/etc/ssh/ssh_host_* --exclude=/etc/ssh/moduli --exclude=/etc/udev/rules.d/*persistent-net.rules --exclude=/mnt/* --exclude=/proc/* --exclude=/tmp/* --exclude=/sys/* --exclude=/dev/* / ${imageMountPoint}


echo "rsync finished. Flushing copied log data..."
#clear out any remaining log data
cd ${imageMountPoint}/var/log
for i in `ls ./**/*`; do
  echo $i && echo -n> $i
done

# Create base devices (console, null, zero) under the completed image
for i in console null zero ; do MAKEDEV -d ${imageMountPoint}/dev -x $i ; done

# get out of the image mount point so we can successfully unmount
cd /

# Sync changes and unmount the image
sync
umount ${imageMountPoint}
rmdir ${imageMountPoint}