Script to convert Github Enterprise OVA image to tar.gz for LXC.

ghe-lxc-image

#!/bin/bash

[ "`whoami`" != "root" ] && echo "Should be run by root!" && exit 1

[ -e *.vmdk ] || ( echo Extracting VMDK image from *.ova ... ; tar xf *.ova )
[ -e github.img ] || ( echo Converting *.vmdk to raw image ... ; qemu-img convert *.vmdk github.img )

echo Preparing mounts ...
losetup -f github.img -P
vgchange -ay enterprise-11
mkdir -p root/rootfs
cd root
mount /dev/enterprise-11/root rootfs
cd rootfs

mount /dev/loop0p1 boot

# XXX: configure network, rc hacks, etc.
#...

cd ../ # change dir to one which contain the 'rootfs' directory

echo "Creating github.tgz ..."
tar czf ../github.tgz .

echo "Umounting ..."

cd ../

umount root/rootfs/boot && umount root/rootfs && rm -r root/rootfs root
vgchange -an enterprise-11
losetup -d /dev/loop0

echo Done