docker-save-xz

#!/bin/bash

function help()
{
   echo "Docker Save XZ"
   echo "--------------"
   echo
   echo "options:"
   echo "ARG1     Image Name"
   echo "ARG2     Compressed output file"
   echo
   echo "example: docker-save-xz httpd:2.4 httpd-v2.4"
   echo
}

function save () {
	if [ "$1" = "" ] || [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
		help
	else
		echo
		echo "Execute docker save command"
		echo "---------------------------------"
		echo "ARG1 - Image Name: $1"
		echo "ARG2 - Compressed File: $2.tar.xz"
		echo "---------------------------------"
		echo
		docker save $1 | xz -9e -T 2 -vv -c - > $2.tar.xz
		xz -tvv $2.tar.xz
		echo
	fi
}

save $1 $2