#!/bin/sh
# This script is used to generate a complete template for openvz.
# This script only take one mandatory argument, the template name
# A second argument can be specified, it'll be the architecture of the template
# TODO:
# - integrate an arch option
# - integrate a distro option
# - integrate an option to install packages and config files
# - integrate mirror override, instead of using the host one.
# - use getopt or similar to handle parameters
# - handle architectures correctly (you can't have ia64 built on top of i386 for example)
# - write usage()
# - Other things that I forgot..

DISTRO=hardy
TARGET=$DISTRO
MIRROR=`cat /etc/apt/sources.list | grep main | head -n1 | cut -d' ' -f2`

if [ ! -e /usr/share/debootstrap/scripts/$DISTRO ]; then
    ln -sf /usr/share/debootstrap/scripts/hardy /usr/share/debootstrap/scripts/$DISTRO
fi

cd /opt

ARCH=i386
if [ -n "$2" ]; then
    ARCH=$2
fi
/usr/sbin/debootstrap --arch=$ARCH $DISTRO $TARGET $MIRROR

for i in $(echo "proc sys dev"); do
    mount -o bind /$i $TARGET/$i
done

echo "deb $MIRROR $DISTRO main restricted universe multiverse" > $TARGET/etc/apt/sources.list
echo "deb $MIRROR $DISTRO-updates main restricted universe multiverse" >> $TARGET/etc/apt/sources.list
echo "deb $MIRROR $DISTRO-security main restricted universe multiverse" >> $TARGET/etc/apt/sources.list

echo 'PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games"' > $TARGET/etc/environment
echo 'LANG="en_US.UTF-8"' >> $TARGET/etc/environment
echo 'LANGUAGE="en_US.UTF-8"' >> $TARGET/etc/environment

echo "openvz" > $TARGET/etc/hostname

(
cat << 'EOF'
127.0.0.1                       localhost

# The following lines are desirable for IPv6 capable hosts
::1     localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
EOF
) >  $TARGET/etc/hosts

(
cat << 'EOF'
#!/bin/sh

locale-gen en_US.UTF-8 && update-locale
ln -sf /usr/share/zoneinfo/America/Montreal /etc/localtime
export DEBIAN_FRONTEND=noninteractive
export DEBIAN_PRIORITY=critical
apt-get update && apt-get dist-upgrade --yes
apt-get install ubuntu-standard mc vim language-pack-en --no-install-recommends --yes
apt-get autoremove --purge --yes
# Maybe we should make KXX symlinks instead of removing it in case of update the template is screwed..
update-rc.d -f udev remove
update-rc.d -f klogd remove
rm /etc/event.d/tty*
apt-get clean
/etc/init.d/atd stop
/etc/init.d/cron stop
rm $0
EOF
) >  $TARGET/runme.sh


chroot $TARGET/ bash /runme.sh

for i in $(echo "proc sys dev"); do
    umount $TARGET/$i
done

cd $TARGET 
tar -zcf /var/lib/vz/template/cache/$1.tar.gz *
rm -Rf $TARGET