#!/bin/bash
# create temporary machine

PROGNAME=`basename $0` || exit 1
VZBASE=/var/lib/vz/private
VZID=900
VG=cube
LV=$RANDOM$RANDOM
LVSIZE=2G
BASE=/dev/mapper/${LV}_crypt

function debug {
        if [ "$DEBUG" = "1" ]; then echo "${PROGNAME}:debug:$1" 1>&2; fi
}

function warning {
        if [ "$QUIET" = "0" ]; then echo "${PROGNAME}:warning:$1" 1>&2; fi
}

function usage {
        echo "Usage: ${PROGNAME}" 
        exit
}

while [ "$1" != "" ]; do
        case $1 in
                -D | --debug )
                        shift
                        DEBUG=1
                        ;;
                -q | --quiet )
                        shift
                        QUIET=1
                        ;;
                -h | --help )
                        usage
                        ;;
                -* )
                        echo "$PROGNAME: unrecognized option \`$1'"
                        echo "Try \`$PROGNAME --help' for more information."
                        exit 1
                        ;;
                * )
                        break;
                        ;;
        esac
done

if ! mkdir $VZBASE/$VZID; then
	warning "unable to create $VZBASE/$VZID, can't run"
	exit 1
fi

function cleanup {
        debug "cleanup called, arg=$1"
        trap - EXIT HUP INT TERM ERR
	if [ -b $BASE ]; then
		umount /var/lib/vz/root/$VZID/var/mirror/debian
		vzctl stop $VZID
		umount $BASE
		cryptsetup remove $BASE
	fi
	lvremove -f $VG/$LV
	rmdir $VZBASE/$VZID
        exit $1
}

function fatal {
        echo "${PROGNAME}:${1:-"unknown error"}" 1>&2
        cleanup 1
}

function sig_handler_HUPINTTERM {
        fatal "cought HUP, INT or TERM signal, exiting"
}

function sig_handler_ERR {
        cleanup 1
}

function sig_handler_EXIT {
        cleanup 0
}

trap sig_handler_HUPINTTERM HUP INT TERM
trap sig_handler_ERR ERR 
trap sig_handler_EXIT EXIT


debug "using vg=$VG, lv=$LV ($LVSIZE), vzid=$VZID"

lvcreate $VG -L $LVSIZE -n $LV
cryptsetup -d /dev/random -s 256 -c aes-cbc-essiv:sha256 create `basename $BASE` /dev/$VG/$LV
mke2fs $BASE
mount $BASE $VZBASE/$VZID

debootstrap --arch i386 lenny $VZBASE/$VZID file:///var/mirror/debian
echo temp > $VZBASE/$VZID/etc/hostname
sed -i -e '/getty/d' $VZBASE/$VZID/etc/inittab
rm -f $VZBASE/$VZID/etc/mtab
ln -s /proc/mounts $VZBASE/$VZID/etc/mtab
mkdir -p $VZBASE/$VZID/var/mirror/debian
echo "deb file:///var/mirror/debian lenny main" > $VZBASE/$VZID/etc/apt/sources.list
cat << "X" > $VZBASE/$VZID/etc/network/interfaces
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp

auto eth1
iface eth1 inet static
	address 192.168.1.32
	netmask 255.255.255.0
	broadcast 192.168.1.255
X
cat << "X" > $VZBASE/$VZID/etc/resolv.conf
nameserver 10.0.21.1
X
#sed -i -e 's/id:2:initdefault:/id:1:initdefault:/' $VZBASE/$VZID/etc/inittab
mkdir $VZBASE/$VZID/home/user
chown 1000:1000 $VZBASE/$VZID/home/user
vzctl start $VZID
brctl addif br0 veth900.1
brctl addif br1 veth900.0
mount cube:/var/mirror/debian  /var/lib/vz/root/$VZID/var/mirror/debian
vzctl exec $VZID apt-get update
vzctl exec $VZID apt-get -y install iceweasel less icedove xdm wmaker x11-xserver-utils xterm menu pidgin openssh-client
#cat << "X" >> $VZBASE/$VZID/etc/tor/torrc
#AutomapHostsOnResolve 1
#TransPort 9040
#DNSPort 53
#X
echo "192.168.1.2" >> $VZBASE/$VZID/etc/X11/xdm/Xaccess
sed -i -e 's/DisplayManager.requestPort/!DisplayManager.requestPort/' $VZBASE/$VZID/etc/X11/xdm/xdm-config
sed -i -e 's/^:0 local/#:0 local/' $VZBASE/$VZID/etc/X11/xdm/Xservers
echo "user:x:1000:1000:,,,:/home/user:/bin/bash" >> $VZBASE/$VZID/etc/passwd
echo 'user:$1$KVqK8e9B$PyjRo1lLCCtgNI//PNstf/:14303:0:99999:7:::' >> $VZBASE/$VZID/etc/shadow
vzctl exec $VZID /etc/init.d/xdm start
bash