echo "Backup your Docker Volumes"

echo ""

echo "Usage: docker run [volumes] bluet/vback <action> file"

# must have -it to see progress bar

echo "Usage: docker run -it -v [source-volume-name]:/volume -v [archive-dir]:/backup --rm bluet/vback backup [archive-name]"

echo "Usage: docker run -it -v [target-volume-name]:/volume -v [archive-dir]:/backup --rm bluet/vback restore [archive-name]"

echo ""

echo "Example:"

echo "docker run -it -v docker_dbdata:/volume -v \$PWD/backup:/backup --rm bluet/vback backup dbdata"

echo "docker run -it -v drsite_dbdata:/volume -v /data/backup:/backup --rm bluet/vback restore dbdata"

exit

if ! [ "$ARCHIVE" == "-" ]; then

mkdir -p `dirname /backup/$ARCHIVE`

fi

# busybox du does not support -b

tar -C /volume/ -cf - ./ | pv -s $(du -sk /volume | awk '{print $1*1024}') | pigz > $ARCHIVE_PATH

if ! [ "$ARCHIVE" == "-" ]; then

if ! [ -e $ARCHIVE_PATH ]; then

echo "Archive file $ARCHIVE does not exist"

exit 1

fi

fi

echo "Cleanup volume content..."

rm -rf /volume/* /volume/..?* /volume/.[!.]*

echo "Restoring from backup file."

pv $ARCHIVE_PATH | tar xzf - -C /volume/