#! /bin/sh

# (C) copyleft The Anarcat <anarcat@anarcat.ath.cx> 2006-2007
# GPL of course

# those packages are not going to be installed
REMOVE_PACKAGES="sparc-utils,dhcp-client,lilo,makedev,pcmcia-cs,ppp,pppconfig,pppoe,pppoeconf,setserial,syslinux,fdutils,libpcap0,iptables,pciutils,exim4"
INCLUDE_PACKAGES="nullmailer,less,subversion"

# command line parsing...
NAME=$1
HOSTNAME=${NAME}
SIZE=$2
NET=$3
DIST=${4:-etch}
MIRROR=${5-http://debian.mirror.iweb.ca/debian/}
DBOPTS="${6} --exclude=$REMOVE_PACKAGES"

# some defaults
SOURCES=/etc/vservers/${DIST}-sources.list
VSERVER_ROOT=/vservers
if [ $# -lt 3 ]
then
	cat <<EOF
Usage: $0 <name> <size> <net> [<distro> [<mirror> [<dbopts>]]]

name: the vserver name
size: the size of the LV to create
net: the ip (e.g. eth0:192.168.0.100/24)
distro: the distro to bootstrap with (e.g. defaults to ${DIST}), use "skeleton" for a barebones vserver
mirror: the mirror to use (defaults to ${MIRROR}, not used for "skeleton")
dbopts: other options to debootstrap (not used for "skeleton")
EOF
	exit
fi

# figure out the name of the LVM device
DEVICE=/dev/mapper/vserver--data-`echo $NAME | sed 's/-/--/g'`

echo "** Creating ${SIZE} vserver ${NAME} on ${NET} with distro ${DIST} on mirror ${MIRROR} (debopts: ${DBOPTS})"

echo creating partition
lvcreate -L${SIZE} -n${NAME} vserver-data > /dev/null
echo formatting $DEVICE
mkfs -t ext3 -j $DEVICE > /dev/null
echo adding to fstab
echo "${DEVICE} ${VSERVER_ROOT}/${NAME} ext3 defaults 0 2" >> /etc/fstab
echo mounting
mkdir -p ${VSERVER_ROOT}/${NAME}
mount ${VSERVER_ROOT}/${NAME}

# that's the real magic incantation...
echo "bootstraping vserver"
if [ "${DIST}" = "skeleton" ] ; then
  vserver ${NAME} build   -n ${NAME}  --hostname ${HOSTNAME} --interface ${NET}  -m skeleton
else
  vserver ${NAME} build   -n ${NAME}  --hostname ${HOSTNAME} --interface ${NET}  -m debootstrap -- -d ${DIST} -m ${MIRROR} -- ${DBOPTS}
fi | while read
do
	echo -n .
done
echo " done."

# make sure the server starts on boot
echo default > /etc/vservers/${NAME}/apps/init/mark
echo ${NAME} > /etc/vservers/${NAME}/interfaces/0/name

if [ "${DIST}" = "skeleton" ] ; then
	exit
fi

echo "starting vserver ${NAME}"
vserver ${NAME} start > /dev/null

echo "locking the root account"
vserver ${NAME} exec passwd -l root

# extra candy :)
if [ -r $SOURCES ]
then
	echo "security upgrade"
	cp  $SOURCES ${VSERVER_ROOT}/${NAME}/etc/apt/sources.list
	vserver ${NAME} exec aptitude update
	vserver ${NAME} exec aptitude upgrade
fi