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# run-virt.include
# -----------------------------------------------------------------------------
# Copyright (c) 2010 - RZ Uni Freiburg
# Copyright (c) 2010 - OpenSLX GmbH
#
# This program/file is free software distributed under the GPL version 2.
# See http://openslx.org/COPYING
#
# If you have any feedback please consult http://openslx.org/feedback and
# send your feedback to feedback@openslx.org
#
# General information about OpenSLX can be found at http://openslx.org
# -----------------------------------------------------------------------------
# run-virt.include
# - Include script for running Xen on an OpenSLX client via the run-virt.sh
# or run-vmgrid.sh
################################################################################
################################################################################
### Include general configuration
################################################################################
if [ -f ${OPENSLX_DEFAULT_CONFDIR}/plugins/${self}/${self}.conf ]; then
. ${OPENSLX_DEFAULT_CONFDIR}/plugins/${self}/${self}.conf
else
writelog "Problems reading config file of ${self} plugin"
exit 1
fi
################################################################################
### Declaration of default variables
################################################################################
PLUGINCONFXEN="${PLUGINCONFROOT}/${self}"
# create TMPDIR for all users
mkdir -m 1777 /tmp/${self} 2>/dev/null
# dir for configs
confdir="/tmp/${self}/${USER}/${VM_ID}"
# use vm_shortname for VM name since vm_name can be very long
# add id so we can start more tahn one of the same image
vm_name="${vm_shortname}-${VM_ID}"
conffile=${confdir}/${vm_name}
# define dirs and files which can be removed after exit, be carefull!
rm -rf ${confdir} 2>/dev/null
mkdir -p ${confdir} 2>/dev/null
xen_kernel=${kernel:-"/boot/vmlinuz-xen"}
xen_ramdisk=${initramfs:-"/boot/initrd-xen"}
xen_extra="xencons=tty 3"
[ -n "${imgname}" ] && xen_disk="disk = [ 'file:${vmpath},hda1,r' ]"
writelog "Directories:"
writelog "\tConfig dir:\t\t$confdir"
################################################################################
### Hardware checks
################################################################################
# memory part equal to vmware plugin
# percentage of memory to use for virtualbox in standard case
if [ -n "${forcemem}" ]; then
mem="${forcemem}"
else
permem=30
if [ "${totalmem}" -ge "1600" ]; then
permem=40
fi
# check if /tmp is on harddisk
if grep -qe "/dev/.* /tmp " /proc/mounts ; then
permem=60
id44="1"
# Hack, if more than 2,5G RAM use 40% of Ram and write vmem into Ram as well
# (40% vmware | 40% confdir(vmem...) | 20% host
# VMplayer 2+ issue
# TODO: makes this sense for vbox?
#if [ "${totalmem}" -ge "2500" ]; then
#permem=40
#rmdir ${snapshotdir}
#snapshotdirold=${snapshotdir}
#snapshotdir=/dev/shm/${self}/${USER}/${VM_ID}
#mkdir -p ${snapshotdir}
#ln -sf ${snapshotdir} ${snapshotdirold}
#fi
fi
mem=$(expr ${totalmem} / 100 \* ${permem})
if [ "${id44}" = "1" ]; then
memhost=$(expr ${totalmem} - ${mem})
else
memhost=$(expr ${totalmem} - ${mem} - ${mem})
fi
#permem=40
#mem=$(expr ${totalmem} * ${permem})
if [ "${mem}" -lt "256" ] || [ "${memhost}" -lt "256" ]; then
writelog "Memory out of range: ${mem} MB (guest) / ${memhost} MB (host)!"
writelog "Min. 256 MB for host and guest!"
exit 1
fi
fi
# translate network kinds (nat, bridged, host-only)
case "${network_kind}" in
bridge*)
xen_vif="mac=$macaddr, bridge=br0"
;;
*)
xen_vif="mac=$macaddr"
esac
xen_dhcp="dhcp" # off
# translate boot, use if set else set to disk
xen_root=/dev/hda1
case ${boot} in
n*|tftp)
pxe_label=$(grep -o 'pxe_label param=.*"' ${xmlfile} \
| sed -e "s/&.*;/; /g" | awk -F '"' '{print $2}')
pxe_label=$(grep -A 3 "^LABEL *${pxe_label}" \
${xen_tftpdir}/pxelinux.cfg/default 2>/dev/null \
| grep "^ *KERNEL ")
if [ -n "${pxe_label}" ] && [ -n "${xen_tftpdir}" ]; then
xen_root=/dev/nfs
xen_kernel="${xen_tftpdir}/$(echo ${pxe_label} \
| awk -F " --- " '{print $2}' | awk '{print $1}')"
xen_ramdisk="${xen_tftpdir}/$(echo ${pxe_label} \
| awk -F " --- " '{print $3}')"
fi
;;
# later maybe c|disk|hd*|sd*) for HD and d|cd*) for CD-ROM
*)
xen_root=/dev/hda1
;;
esac
[ ${diskless} -eq 0 ] && writelog "Diskimage:"
[ ${diskless} -eq 0 ] && writelog "\tMachine diskfile:\t$vmpath"
writelog "Virtual Hardware:"
writelog "\tGuest RAM:\t\t${mem} MB"
# echo nur wenn memhost gesetzt
[ -n "${memhost}" ] && writelog "\tHost RAM:\t\t${memhost} MB"
writelog "\tMAC address:\t\t$macaddr"
################################################################################
### Pepare and configure virtual machine and disk image
################################################################################
. ${PLUGINCONFXEN}/machine.include > ${conffile}
################################################################################
### finally set env for run-virt.sh
################################################################################
# set the variables appropriately (several interfaces with different names)
VIRTCMD=$(which xm 2>/dev/null)
# '-c' for console, no graphical output available, later vnc possible
VIRTCMDOPTS="create -c ${conffile}"
# set headless mode
VIRTCMDHL=$(which xm 2>/dev/null)
VIRTCMDOPTSHL="create ${conffile}"
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