cumulative commit of local branch, xen modifications and vmgrid plugin

4 files changed, 1040 insertions, 0 deletions

diff --git a/os-plugins/plugins/vmgrid/OpenSLX/OSPlugin/vmgrid.pm b/os-plugins/plugins/vmgrid/OpenSLX/OSPlugin/vmgrid.pm
new file mode 100644
index 00000000..d73e0720
--- /dev/null
+++ b/os-plugins/plugins/vmgrid/OpenSLX/OSPlugin/vmgrid.pm
@@ -0,0 +1,322 @@
+# Copyright (c) 2008, 2009 - OpenSLX GmbH
+#
+# This program 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 suggestions, praise, or complaints to feedback@openslx.org
+#
+# General information about OpenSLX can be found at http://openslx.org/
+# -----------------------------------------------------------------------------
+# vmgrid.pm
+#    - ...
+# -----------------------------------------------------------------------------
+package OpenSLX::OSPlugin::vmgrid;
+
+use strict;
+use warnings;
+
+use base qw(OpenSLX::OSPlugin::Base);
+
+use OpenSLX::Basics;
+use OpenSLX::Utils;
+use OpenSLX::DistroUtils;
+
+sub new
+{
+    my $class = shift;
+
+    my $self = {
+        name => 'vmgrid',
+    };
+
+    return bless $self, $class;
+}
+
+# TODO: desc
+sub getInfo
+{
+    my $self = shift;
+
+    return {
+        description => unshiftHereDoc(<<'        End-of-Here'),
+            ...
+        End-of-Here
+        precedence => 80,
+        #required => [ qr{^(vmware|virtualbox|qemukvm|xen)$} ],
+        #openvz|vserver
+        # TODO: virtaul plugin (requires, provides?)
+        #required => [ qw( virtualization ) ],
+        #provided => [ qw( virtualization ) ],
+    };
+}
+
+sub getAttrInfo
+{
+    my $self = shift;
+
+    return {
+        'vmgrid::active' => {
+            applies_to_systems => 1,
+            applies_to_clients => 1,
+            description => unshiftHereDoc(<<'            End-of-Here'),
+                should the 'vmgrid'-plugin be executed during boot?
+            End-of-Here
+            content_regex => qr{^(0|1)$},
+            content_descr => '1 means active - 0 means inactive',
+            default => '1',
+        },
+        'vmgrid::virt' => {
+            applies_to_systems => 1,
+            applies_to_clients => 1,
+            description => unshiftHereDoc(<<'            End-of-Here'),
+                which virtualization technique schould be used?
+            End-of-Here
+            content_regex => qr{^(vmware|virtualbox|qemukvm|xen)$},
+            #openvz|vserver
+            content_descr => 'vmware, virtualbox, qemukvm, xen',
+            #openvz, vserver
+            default => undef,
+        },
+        'vmgrid::roshare' => {
+            applies_to_systems => 1,
+            applies_to_clients => 1,
+            description => unshiftHereDoc(<<'            End-of-Here'),
+                do you want to mount external resources?
+                e.g. NFS share /w virt images ...
+                will be mounted to /var/lib/virt/vmgrid
+            End-of-Here
+            content_regex => qr{^nfs://},
+            content_descr => 'NFS share as URI (nfs://...)',
+            default => undef,
+        },
+        'vmgrid::rwshare' => {
+            applies_to_systems => 1,
+            applies_to_clients => 1,
+            description => unshiftHereDoc(<<'            End-of-Here'),
+                 do you want a persistent storage device?
+                 use local hard drive (ID45) or NFS share.
+                 will be mounted to /var/opt/openslx/plugins/vmgrid/share
+            End-of-Here
+            content_regex => qr{^(id45|nfs://)},
+            content_descr => 'NFS share as URI (nfs://...) or "id45"',
+            default => undef,
+        },
+        'vmgrid::imgpath' => {
+            applies_to_systems => 1,
+            applies_to_clients => 1,
+            description => unshiftHereDoc(<<'            End-of-Here'),
+                 location of virtual images
+                 for starts /wo full path
+            End-of-Here
+            content_descr => 'absolute path to vm image files',
+            default => '/var/lib/virt/vmgrid/images',
+        },
+        'vmgrid::xmlpath' => {
+            applies_to_systems => 1,
+            applies_to_clients => 1,
+            description => unshiftHereDoc(<<'            End-of-Here'),
+                 location of XML configuration for virtual images
+                 for starts /wo full path
+            End-of-Here
+            content_descr => 'absolute path to vm xml files',
+            default => '/var/lib/virt/vmgrid/xml',
+        },
+        'vmgrid::startvms' => {
+            applies_to_systems => 1,
+            applies_to_clients => 1,
+            description => unshiftHereDoc(<<'            End-of-Here'),
+                 which virtaul machines should be started per default
+                 comma separated list. first will be started first,
+                 second second, and so on, max. 4 VMs
+            End-of-Here
+            content_descr => 'name of xml file e.g. scilin-5.4-wn(.xml)',
+            default => undef,
+        },
+        'vmgrid::hvm' => {
+            applies_to_systems => 1,
+            applies_to_clients => 1,
+            description => unshiftHereDoc(<<'            End-of-Here'),
+                 use hardware virtualization, if applicable
+                 override the settings of the corresponding virt plugin
+                 (only if supported by plugin)
+            End-of-Here
+            content_regex => qr{^(0|1)$},
+            content_descr => '"0", "1" or "-" (for unset)',
+            default => undef,
+        },
+        'vmgrid::maxvcpus' => {
+            applies_to_systems => 1,
+            applies_to_clients => 1,
+            description => unshiftHereDoc(<<'            End-of-Here'),
+                 use this number of vcpus as maximum for one vm
+                 will be used only if applicable
+                 (only if supported by plugin)
+            End-of-Here
+            content_regex => qr{^(1|2|4|8|16)$},
+            content_descr => '1, 2, 4, 8, 16',
+            default => undef,
+        },
+        'vmgrid::minvcpus' => {
+            applies_to_systems => 1,
+            applies_to_clients => 1,
+            description => unshiftHereDoc(<<'            End-of-Here'),
+                 use this number of vcpus as minimum for one vm
+                 will be used only if applicable
+                 (only if supported by plugin)
+            End-of-Here
+            content_regex => qr{^(1|2|4|8|16)$},
+            content_descr => '1, 2, 4, 8, 16',
+            default => undef,
+        },
+        'vmgrid::memratio' => {
+            applies_to_systems => 1,
+            applies_to_clients => 1,
+            description => unshiftHereDoc(<<'            End-of-Here'),
+                 define memory ratio in nn%
+                 order: grid client 1, 2, 3, 4, other VMs, host
+                 if desktop virtualization defined the free memory will be
+                 distributed between the remaining grid clients,
+                 according to their ratio
+                 if less than 4 VMs defined in startvms the memory is being
+                 reserved for a later manual start
+                 set to 0 if you don't intend to start them manually
+                 (only if supported by plugin)
+            End-of-Here
+            content_regex => qr{^(\d\d??,\d\d??,\d\d??,\d\d??,\d\d??,\d\d??)$},
+            content_descr => '\d\d??,\d\d??,\d\d??,\d\d??,\d\d??,\d\d??',
+            default => '40,0,0,0,40,20',
+        },
+        'vmgrid::maxram' => {
+            applies_to_systems => 1,
+            applies_to_clients => 1,
+            description => unshiftHereDoc(<<'            End-of-Here'),
+                 maximum of RAM used for ALL vms
+                 will be used only if applicable
+                 (only if supported by plugin)
+            End-of-Here
+            content_regex => qr{^(1|2|3|4|5|6|7|8|9)},
+            content_descr => 'absolute or relative e.g. 512 or 50%',
+            default => undef,
+        },
+        'vmgrid::minram' => {
+            applies_to_systems => 1,
+           applies_to_clients => 1,
+            description => unshiftHereDoc(<<'            End-of-Here'),
+                 minimum of RAM used for ALL vms
+                 will be used only if applicable
+                 (only if supported by plugin)
+            End-of-Here
+            content_regex => qr{^(1|2|3|4|5|6|7|8|9)},
+            content_descr => 'absolute or relative e.g. 512 or 50%',
+            default => undef,
+        },
+    };
+}
+
+sub installationPhase
+{
+    my $self = shift;
+    my $info = shift;
+
+    my $pluginRepoPath  = $info->{'plugin-repo-path'};
+    my $openslxBasePath = $info->{'openslx-base-path'};
+
+    $self->_writeRunlevelScript();
+
+    # copy all needed files now:
+    my $pluginName = $self->{'name'};
+    my $pluginBasePath = "$openslxBasePath/lib/plugins/$pluginName/files";
+    foreach my $file ( qw( vmgrid run-vmgrid.sh ) ) {
+        copyFile("$pluginBasePath/$file", "$pluginRepoPath/");
+        chmod 0755, "$pluginRepoPath/$file";
+    }
+
+    return;
+}
+
+sub removalPhase
+{
+    my $self = shift;
+    my $info = shift;
+
+    return;
+}
+
+# Write the runlevelscript
+sub _writeRunlevelScript
+{
+    my $self     = shift;
+    my $initfile = newInitFile();
+
+    $initfile->setName("vmgrid-slx");
+    $initfile->setDesc("Setup environment for vmgrid. Part of OpenSLX vmgrid plugin.");
+
+    # todo: Function need to be formated proper... not important right now
+    #$initfile->addFunction(
+    #    'running',
+    #    'lsmod | grep -q "$1[^_-]"'
+    #);
+
+    # Is a VM running?
+    my $runningvms = unshiftHereDoc(<<'    End-of-Here');
+    if [ -e /tmp/vmgrid/vmgrid.pids ]; then
+      for pid in $(cat /tmp/vmgrid/vmgrid.pids); do
+        if ps aux | grep " ${pid} " | grep vmgrid; then
+          echo "Running: ${pid}"
+        fi
+      done
+    fi
+    End-of-Here
+
+    # Kill all VMS!
+    my $killvms = unshiftHereDoc(<<'    End-of-Here');
+    if [ -e /tmp/vmgrid/vmgrid.pids ]; then
+      for pid in $(cat /tmp/vmgrid/vmgrid.pids); do
+        if ps aux | grep " ${pid} " | grep vmgrid; then
+          kill ${pid}
+        fi
+      done
+    fi
+    End-of-Here
+
+    # FORCE: Kill all VMS!
+    my $fkillvms = unshiftHereDoc(<<'    End-of-Here');
+    if [ -e /tmp/vmgrid/vmgrid.pids ]; then
+      for pid in $(cat /tmp/vmgrid/vmgrid.pids); do
+        if ps aux | grep " ${pid} " | grep vmgrid; then
+          kill -9 ${pid}
+        fi
+      done
+    fi
+    End-of-Here
+
+    $initfile->addFunction(
+        'start',
+        '  vmgrid',
+    );
+    $initfile->addToCase(
+        'kill',
+        'killvms'
+    );
+    $initfile->addToCase(
+        'force-kill',
+        'fkillvms'
+    );
+    $initfile->addToCase(
+        'status',
+        'runningvms'
+    );
+    $initfile->addToCase(
+        'restart',
+        'stop && start'
+    );
+
+    # get distro version
+#    my $distro = (split('-',$self->{'os-plugin-engine'}->distroName()))[0];
+#    my $runlevelscript = getInitFileForDistro($initfile, $distro);
+#
+#    spitFile("$self->{'pluginRepositoryPath'}/vmgrid-slx", $runlevelscript);
+}
+
+1;
diff --git a/os-plugins/plugins/vmgrid/XX_vmgrid.sh b/os-plugins/plugins/vmgrid/XX_vmgrid.sh
new file mode 100644
index 00000000..d9e35dfb
--- /dev/null
+++ b/os-plugins/plugins/vmgrid/XX_vmgrid.sh
@@ -0,0 +1,124 @@
+# Copyright (c) 2008..2010 - RZ Uni Freiburg
+# Copyright (c) 2008..2010 - OpenSLX GmbH
+#
+# This program/file is free software distributed under the GPL version 2.
+# See http://openslx.org/COPYING
+#
+# If you have any feedback please consult http://openslx.org/feedback and
+# send your feedback to feedback@openslx.org
+#
+# General information about OpenSLX can be found at http://openslx.org
+#
+# script is included from init via the "." load function - thus it has all
+# variables and functions available
+
+# include default directories
+. /etc/openslx.conf
+
+CONFFILE="/initramfs/plugin-conf/vmgrid.conf"
+PLUGINCONFDIR=/mnt/${OPENSLX_DEFAULT_CONFDIR}/plugins/vmgrid
+VIRTUALIZATIONPLUGIN=/mnt/${OPENSLX_DEFAULT_CONFDIR}/plugins/virtualization
+#RWSHARE=/mnt/${OPENSLX_DEFAULT_VARDIR}/plugins/vmgrid/share
+RWSHARE=/mnt/var/opt/openslx/plugins/vmgrid/share
+RWSHAREMNT=/mnt/var/opt/openslx/mnt/vmgrid
+BINDIR=/mnt/${OPENSLX_DEFAULT_BINDIR}
+PLUGINDIR=${OPENSLX_DEFAULT_DIR}/plugin-repo/vmgrid
+VIRTDIR=/mnt/${OPENSLX_DEFAULT_VIRTDIR}/vmgrid
+
+if [ -f $CONFFILE ]; then
+
+  # load needed variables
+  . $CONFFILE
+
+  if [ $vmgrid_active -ne 0 ] ; then
+    [ $DEBUGLEVEL -gt 0 ] && echo "executing the 'vmgrid' os-plugin ..."
+
+    # load general configuration
+    . /etc/initramfs-setup
+    # include functions
+    . /etc/functions
+
+    testmkd ${PLUGINCONFDIR}
+    testmkd ${VIRTDIR}
+    cp $CONFFILE ${PLUGINCONFDIR}/vmgrid.conf
+    # create link to binpath
+    ln -fs ${PLUGINDIR}/vmgrid ${BINDIR}/vmgrid
+    ln -fs ${PLUGINDIR}/run-vmgrid.sh ${BINDIR}/run-vmgrid.sh
+
+    # mount nfs virt ro share
+    if strinstr "nfs://" "${vmgrid_roshare}"; then
+      virtsrcprot=$(uri_token ${vmgrid_roshare} prot)
+      virtsrcserv=$(uri_token ${vmgrid_roshare} server)
+      virtsrcpath="$(uri_token ${vmgrid_roshare} path)"
+      if [ -n "${virtsrcprot}" -a -n "${virtsrcserv}" -a -n "${virtsrcpath}" ];
+        then
+        virtsrctarget=${VIRTDIR}
+        # mount the vmgrid source ro
+        fsmount ${virtsrcprot} ${virtsrcserv} ${virtsrcpath} ${virtsrctarget} \
+          ro
+      fi
+    fi
+
+    # create rw share
+    testmkd ${RWSHARE}
+    # bind mount id 45 to ${RWSHARE}
+    if strinstr "id45" "${vmgrid_rwshare}" ; then
+      id45part=$(grep " 45 " /etc/disk.partition | awk '{print $1}' | \
+        cut -f 3,3 -d /)
+      if [ -n "${id45part}" ]; then
+        testmkd /mnt/media/${id45part}/vmgrid
+        mount --bind -n /mnt/media/${id45part}/vmgrid ${RWSHARE} \
+          >>/tmp/vmgrid.log 2>&1
+      fi
+    # mount nfs rw share
+    elif strinstr "nfs://" "${vmgrid_rwshare}" ; then
+      rwshareprot=$(uri_token ${vmgrid_rwshare} prot)
+      rwshareserv=$(uri_token ${vmgrid_rwshare} server)
+      rwsharepath="$(uri_token ${vmgrid_rwshare} path)"
+      if [ -n "${rwshareprot}" -a -n "${rwshareserv}" -a -n "${rwsharepath}" ];
+      then
+        # mount to a dir fist to create spec host dir, then bind mount
+        testmkd ${RWSHAREMNT}
+        rwtarget=${RWSHAREMNT}
+        # mount the vmgrid source rw
+        fsmount ${rwshareprot} ${rwshareserv} ${rwsharepath} ${rwtarget} rw
+        # hostname?
+        host_name=${host_name:=$clientip}
+        testmkd ${RWSHAREMNT}/${host_name}
+        mount --bind ${RWSHAREMNT}/${host_name} ${RWSHARE} \
+          >>/tmp/vmgrid.log 2>&1
+      fi
+    else
+      testmkd /mnt/tmp/vmgrid
+      mount --bind -n /mnt/tmp/vmgrid ${RWSHARE} >>/tmp/vmgrid.log 2>&1
+    fi
+    # chmod so that everybody can write
+    chmod 1777 ${RWSHARE}
+    echo "vmgrid_rwmnt=${RWSHARE#/mnt}" >> ${PLUGINCONFDIR}/vmgrid.conf
+
+    # virtual virtualization plugin
+    testmkd ${VIRTUALIZATIONPLUGIN}
+    totalmemtest=$(expr $(echo ${vmgrid_memratio} \
+                  | awk -F ',' '{print $1" + "$2" + "$3" + "$4" + "$5" + "$6}'))
+    totalmem=$(expr $(grep -i "memtotal" /proc/meminfo \
+               | awk '{print $2}') / 1024)
+    if [ ${totalmemtest} -le 100 2>/dev/null ]; then
+      # get hostmem
+      freememper=$(expr 100 - $(echo ${vmgrid_memratio} \
+                   | awk -F ',' '{print $1" - "$2" - "$3" - "$4}'))
+      freemem=$(expr ${totalmem} \* ${freememper} / 100)
+      echo "virt_freemem=${freemem}" \
+        >> ${VIRTUALIZATIONPLUGIN}/virtualization.conf
+    else
+      # more than 100% memory assigned stupid!
+      # vmgrid will get this as well and exit!
+      # so we have theoretically 100% free
+      echo "virt_freemem=${totalmem}" \
+        >> ${VIRTUALIZATIONPLUGIN}/virtualization.conf
+    fi
+
+    # finished ...
+    [ $DEBUGLEVEL -gt 0 ] && echo "done with 'vmgrid' os-plugin ..."
+  fi
+[ $DEBUGLEVEL -gt 0 ] && echo "  * configuration of 'vmgrid' os-plugin failed"
+fi
diff --git a/os-plugins/plugins/vmgrid/files/run-vmgrid.sh b/os-plugins/plugins/vmgrid/files/run-vmgrid.sh
new file mode 100644
index 00000000..626dfcca
--- /dev/null
+++ b/os-plugins/plugins/vmgrid/files/run-vmgrid.sh
@@ -0,0 +1,386 @@
+#!/bin/bash
+# -----------------------------------------------------------------------------
+# Copyright (c) 2007..2010 - RZ Uni FR
+# Copyright (c) 2007..2010 - OpenSLX GmbH
+#
+# This program is free software distributed under the GPL version 2.
+# See http://openslx.org/COPYING
+#
+# If you have any feedback please consult http://openslx.org/feedback and
+# send your suggestions, praise, or complaints to feedback@openslx.org
+#
+# General information about OpenSLX can be found at http://openslx.org/
+# -----------------------------------------------------------------------------
+# vmgrid
+#    - This is the generic wrapper for the several virtualization solutions...
+################################################################################
+
+. /etc/opt/openslx/openslx.conf
+
+################################################################################
+### Define default dirs / get configs
+################################################################################
+
+PLUGINCONFROOT=${OPENSLX_DEFAULT_CONFDIR}/plugins
+PLUGINCONFVMGRID=${PLUGINCONFROOT}/vmgrid
+RWSHARE=/var/opt/openslx/plugins/vmgrid/share
+# include general configuration from vmgrid
+[ -f ${PLUGINCONFVMGRID}/vmgrid.conf ] && \
+  . ${PLUGINCONFVMGRID}/vmgrid.conf
+#[ -f ${PLUGINCONFVMGRID}/vmgrid.include ] && \
+#  . ${PLUGINCONFVMGRID}/vmgrid.include
+# get the vmchooser_active var
+[ -f ${PLUGINCONFROOT}/vmchooser/vmchooser.conf ] && \
+  . ${PLUGINCONFROOT}/vmchooser/vmchooser.conf
+
+################################################################################
+### Functions used throughout the script
+################################################################################
+
+# function to write to stdout and logfile
+writelog () {
+  # write to stdout
+  echo -e "$1"
+  # log into file
+  echo -e "$1" >> ${OPENSLX_DEFAULT_LOGDIR}/run-vmgrid.${USER}.$$.log
+  # log into share dir, so that log is available in vm as well
+  echo -e "$1" >> ${vmgrid_rwmnt}/logs/run-vmgrid.${USER}.$$.log
+}
+
+################################################################################
+### Get XML file and dir
+################################################################################
+
+# check if forcemem or graphical mode set
+headless=1
+while [ $# -gt 0 ]; do
+  case "$1" in
+    -h|--help)
+      echo -e "Usage: run-vmgrid.sh [-g] [--forcemem <memorysize in MB>] \c"
+      echo -e "[/path/]filename[.xml]"
+      exit
+    ;;
+    -g)
+      headless=0
+    ;;
+    --forcemem)
+      forcemem=$2
+      shift
+    ;;
+    *)
+      xmlfile=$@
+      break
+    ;;
+  esac
+  shift
+done
+
+# absolute or relative path?
+if ls ${xmlfile} 2>/dev/null | grep '/' >/dev/null 2>&1; then
+  xmlpath=$(dirname ${xmlfile})
+  xmlfile=$(basename ${xmlfile})
+else
+  xmlpath=${vmgrid_xmlpath}
+fi
+# full path
+xmlfile="${xmlpath}/${xmlfile%.xml}.xml"
+
+################################################################################
+### Sanity checks
+################################################################################
+
+# test if the xml file is valid
+if ! [ -r "${xmlfile}" ]; then
+  writelog "${xmlfile} not a readable XML file!"
+  run-vmgrid.sh -h &
+  exit 1
+fi
+
+# start to log, create shrare log dir
+mkdir -m 1777 -p ${vmgrid_rwmnt}/logs
+echo "Starting to log at $(date)" \
+  >${vmgrid_rwmnt}/logs/run-vmgrid.${USER}.$$.log
+
+# test how many instances running
+runningvms=$(ps aux | grep "run-vmgrid.sh " | grep -v grep | wc -l)
+# 2 steps, /w only one is seems not to work
+runningvms=$(expr ${runningvms} - 1)
+# if Xen use different method
+if [ "${vmgrid_virt}" = "xen" ]; then
+  runningvms=$(xm list 2>/dev/null | grep -vE "Domain-0|Name.*ID" | wc -l)
+  runningvms=$(expr ${runningvms} + 1)
+fi
+# check value
+if [ $runningvms -le 0 ]; then
+  writelog "Error in value: Running VMs: ${runningvms}. Exit!"
+  exit 1
+fi
+# check if vmchooser plugin installed
+if [ -n "${vmchooser_active}" ] && [ ${runningvms} -gt 1 ]; then
+  # only allow one instance of vmgrid
+  writelog "Already 1 VMs running and vmchooser plugin is active."
+  writelog "Can't start ${xmlfile}, exiting!"
+  exit 1
+# else allow max. 4 instances
+elif [ ${runningvms} -gt 4 ]; then
+  writelog "Already 4 VMs running, exiting!"
+  exit 1
+fi
+VM_ID="0${runningvms}"
+
+# test if XML file
+if ! grep '<?xml' "${xmlfile}" >/dev/null 2>&1; then
+  writelog \
+    "Submitted configuration file ${xmlfile} seems to have wrong XML format"
+  exit 1
+fi
+
+################################################################################
+###  Logo for console
+################################################################################
+
+cat <<EOL
+                                                          __     __ 
+         .----.--.--.-----.___.--.--.--------.-----.----.|__|.--|  |
+         |   _|  |  |     |___|  |  |        |  _  |   _||  ||  _  |
+         |__| |_____|__|__|    \___/|__|__|__|___  |__|  |__||_____|
+                                             |_____|                
+         OpenSLX virtual machine environment preparation script ...
+
+EOL
+
+################################################################################
+### Read needed variables from XML file
+################################################################################
+
+writelog "Starting configuration..."
+writelog "\tVM-ID:\t\t\t${VM_ID}"
+writelog "\tLogfile:\t\t${OPENSLX_DEFAULT_LOGDIR}/run-vmgrid.${USER}.$$.log"
+writelog "\t/tmp info:\t\t$(df -h | grep " /tmp$" | awk '{print $2}') \c"
+writelog "$(grep "/tmp " /proc/mounts | awk '{print $1" "$2" "$3" "$4}')"
+writelog "\tVM XML dir:\t\t$(dirname ${xmlfile})"
+
+if ! grep '<?xml' "${xmlfile}" >/dev/null 2>&1; then
+  writelog \
+    "Submitted configuration file ${xmlfile} seems to have wrong XML format"
+  exit 1
+fi
+
+writelog "\tXML file:\t\t$xmlfile"
+writelog "VM config:"
+
+# name of the virt image or dir
+imgname=$(grep -io '<image_name param=.*"' ${xmlfile} \
+          | sed -e "s/&.*;/; /g" | awk -F '"' '{ print $2 }')
+
+# image mode
+imgmode=$(grep -io '<image_mode param=.*"' ${xmlfile} \
+          | sed -e "s/&.*;/; /g" | awk -F '"' '{ print $2 }')
+
+# get boot attr
+boot=$(grep -io 'boot param=.*"' ${xmlfile} | awk -F '"' '{ print $2 }')
+diskless=0
+
+# special rw image
+if [ "${imgmode}" = "rwimg" ]; then
+  # maybe you want to use an empty rw imgae?
+  # define only for writelog, will be set in the plugin include again!
+  vmpath="{special rw image}"
+  # add new path for rwimg
+  imgpath=${vmgrid_rwmnt}/specialrwimages
+  unset $imgname
+  mkdir -m 1777 -p ${imgpath}
+# diskless boot
+elif [ "${boot}" = "n" ] && [ -z "${imgname}" ]; then
+  diskless=1
+  vmpath="{diskless boot}"
+# imagename /w full path
+elif echo ${imgname} 2>/dev/null | grep -q '^/' >/dev/null 2>&1; then
+  imgpath=$(dirname ${imgname})
+  imgname=$(basename ${imgname})
+  vmpath=${imgpath}/${imgname}
+# get path from var
+else
+  imgpath=${vmgrid_imgpath}
+  vmpath=${imgpath}/${imgname}
+fi
+
+# check if virtual machine container file exists, only if not rwimg
+if ! [ -e "${vmpath}" ] && [ "${imgmode}" != "rwimg" ] && [ ${diskless} -eq 0 ];
+then
+  writelog "Virtual machine image or directory ${vmpath} not found!"
+  exit 1
+fi
+
+# name of the virt machine, sed because of Windows formatting
+vm_name=$(grep -o 'short_description param=.*"' ${xmlfile} \
+          | sed -e "s/&.*;/; /g" | awk -F '"' '{print $2}')
+# if ${vm_name} not defined use ${xmlfile}
+vm_name=${vm_name:-${xmlfile%.xml}}
+
+# define vm_shortname since vm_name can be very long
+vm_shortname=$(basename ${xmlfile%.xml} | sed -e "s, ,-,g")
+
+# vm_name = displayname, define for old scripts
+displayname=${vm_name}
+
+[ "${imgmode}" != "rwimg" ] && [ ${diskless} -eq 0 ] \
+  && writelog "\tVM Image dir:\t\t${imgpath}"
+writelog "\tVM file/dir:\t\t$vmpath"
+
+# is there an additional configuration provided?
+additional_config=$(grep -o 'additional_config param=.*"' ${xmlfile} \
+                    | sed -e "s/&.*;/; /g" | awk -F '"' '{print $2}')
+
+# image is for the following virtual machine 
+xmlvirt=$(grep -o 'virtualmachine param=.*"' ${xmlfile} \
+          | sed -e "s/&.*;/; /g" | awk -F '"' '{print $2}')
+
+# make a guess from the filename extension if ${xmlvirt} is empty
+# (not set within the XML file)
+if [ -z "${xmlvirt}" ] && [ -n "${additional_config}" ]; then
+  writelog "No virtual machine parameter defined in ${xmlfile}"
+  writelog "Trying to guess VM...\c"
+  case "$(cat ${additional_config} | tr [A-Z] [a-z])" in
+    *config.version*|*virtualhw.version*|*independent-nonpersistent*|*vmdk*)
+      xmlvirt="vmware"
+    ;;
+    *innotek*|*virtualbox*)
+      xmlvirt="virtualbox"
+    ;;
+    *qemu*|*kvm*)
+      xmlvirt="qemukvm"
+    ;;
+    *)
+      xmlvirt="none"
+    ;;
+  esac
+elif [ -z "${xmlvirt}" ]; then
+  case "$(echo ${imgname##*.} | tr [A-Z] [a-z])" in
+    vmdk)
+      xmlvirt="vmware"
+    ;;
+    vbox)
+      xmlvirt="virtualbox"
+    ;;
+    img|qcow*)
+      xmlvirt="qemukvm"
+    ;;
+    *)
+      xmlvirt="none"
+    ;;
+  esac
+  writelog "result:\t${xmlvirt}"
+fi
+
+# check for virt
+if [ "${vmgrid_virt}" != "${xmlvirt}" ]; then
+  writelog "The virtual machine specified in ${xmlfile}"
+  writelog "does not match the virtualization used here (${vmgrid_virt})"
+  exit 1
+fi
+
+# definition of the client system
+vmostype=$(grep -io '<os param=.*"' ${xmlfile} | awk -F '"' '{ print $2 }')
+
+# definition of the networking the client system is connected to
+network_kind=$(grep -io 'network param=.*"' ${xmlfile} \
+               | awk -F '"' '{ print $2 }')
+network_card=$(grep -io 'netcard param=.*"' ${xmlfile} \
+               | awk -F '"' '{ print $2 }')
+
+writelog "\tVirtualization:\t\t$xmlvirt"
+writelog "\tVM name:\t\t$vm_name"
+writelog "\tVM short name:\t\t$vm_shortname"
+
+###############################################################################
+### Declaration of default variables
+###############################################################################
+
+# TODO: cpu cores
+#vmgrid::maxvcpus
+#vmgrid::minvcpus
+#cpu_cores="${cpu_cores}"
+
+# check for CPU virtualization flags
+#vmgrid::hvm
+
+# get total amount of memory installed in your machine
+totalmem=$(expr $(grep -i "memtotal" /proc/meminfo | awk '{print $2}') / 1024)
+permem=60
+mem=$(expr ${totalmem} / 100 \* ${permem} / 4 \* 4)
+#vmgrid::maxram
+#vmgrid::minram
+
+# configuring ethernet mac address: first 3 bytes are fixed (00:50:56) 
+# 4th byte is the VM-ID
+# last two bytes are taken from the bridge of the host
+# define one MAC per guest
+macguestpart="00:50:56:${VM_ID}"
+machostpart=$($(which ifconfig) br0 | grep br0 | sed -e "s/ //g" \
+              | awk -F ":" '{print $(NF-1)":"$NF}')
+macaddr=$(echo "${macguestpart}:${machostpart}" | tr [a-z] [A-Z])
+
+# ide is expected default, test for the virtual disk image type should
+# be done while creating the runscripts ...
+# TODO: cdrom / floppy?
+ide="TRUE"
+scsi="FALSE"
+hddrv="ide"
+
+# add rw share
+sharepath="${vmgrid_rwmnt}/folders/${vm_shortname}"
+mkdir -p ${sharepath}
+chmod -f 1777 "${vmgrid_rwmnt}/folders"
+sharename="share"
+
+# set hostname: using original hostname and adding string
+hostname="vmgrid${VM_ID}-$(hostname)"
+
+writelog "\tVM Hostname:\t\t$hostname"
+
+################################################################################
+### Setup the rest of the environment and run the configured vm
+################################################################################
+
+# Copy guest configuration (with added information) config.xml to be accessed
+# via virtual floppy
+# TODO: virt-floppy needed?
+
+# Get all virtual machine specific stuff from the respective include file
+# TODO: rename to run-vuirt.include
+if [ -e ${PLUGINCONFROOT}/${vmgrid_virt}/run-virt.include ] ; then
+  writelog "Strating ${vmgrid_virt} specific part ..."
+  self=${vmgrid_virt}
+  . ${PLUGINCONFROOT}/${vmgrid_virt}/run-virt.include
+else
+  writelog "Failed because of missing ${vmgrid_virt} plugin"
+  exit 1
+fi
+
+# start graphical mode
+if [ ${headless} -eq 0 ]; then
+  if [ -z "${VIRTCMD}" ]; then
+    writelog "Grapical mode not available, exiting!"
+    exit 1
+  fi
+  writelog "Starting ${vmgrid_virt} in graphical mode..."
+  ${VIRTCMD} ${VIRTCMDOPTS} 2>/dev/null
+# start headless
+elif [ -n "${VIRTCMDHL}" ]; then
+  writelog "Starting ${vmgrid_virt} in headless mode..."
+  ${VIRTCMDHL} ${VIRTCMDOPTSHL} 2>/dev/null
+else
+  writelog "${vmgrid_virt}: No headless mode defined, exiting!"
+  exit 1
+fi
+
+# remove config dirs when finished
+if echo "${RMDIRS}" 2>/dev/null | grep -q ${vmgrid_virt}; then
+  writelog "${vmgrid_virt} exited. Cleanning up... \c"
+  rm -rf ${RMDIRS} >/dev/null 2>&1
+  writelog "done"
+fi
+
+echo -e "Bye."
+exit 0
diff --git a/os-plugins/plugins/vmgrid/files/vmgrid b/os-plugins/plugins/vmgrid/files/vmgrid
new file mode 100644
index 00000000..b75b5341
--- /dev/null
+++ b/os-plugins/plugins/vmgrid/files/vmgrid
@@ -0,0 +1,208 @@
+#!/bin/bash
+# -----------------------------------------------------------------------------
+# Copyright (c) 2007..2010 - RZ Uni FR
+# Copyright (c) 2007..2010 - OpenSLX GmbH
+#
+# This program 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 suggestions, praise, or complaints to feedback@openslx.org
+#
+# General information about OpenSLX can be found at http://openslx.org/
+# -----------------------------------------------------------------------------
+# vmgrid
+#    - Script for autostarts defined in vmgrid::startvms
+################################################################################
+
+# include default directories
+. /etc/opt/openslx/openslx.conf
+
+################################################################################
+### Manual Start
+################################################################################
+
+if [ -n "$1" ]; then
+  if [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
+    echo -e "Usage: vmgrid [[-g] [--forcemem <memorysize in MB>] \c"
+    echo -e "[/path/]filename[.xml]]"
+    exit 0
+  else
+    echo "Starting run-vmgrid.sh with options '$@'"
+    run-vmgrid.sh $@ 2>/dev/null
+    exit
+  fi
+fi
+
+################################################################################
+### Define default dirs / get configs
+################################################################################
+
+PLUGINCONFROOT=${OPENSLX_DEFAULT_CONFDIR}/plugins
+PLUGINCONFDIR=${PLUGINCONFROOT}/vmgrid
+RWSHARE=/var/opt/openslx/plugins/vmgrid/share
+# include general configuration from vmgrid
+[ -f ${PLUGINCONFDIR}/vmgrid.conf ] && \
+  . ${PLUGINCONFDIR}/vmgrid.conf
+# get the vmchooser_active var
+[ -f ${PLUGINCONFROOT}/vmchooser/vmchooser.conf ] && \
+  . ${PLUGINCONFROOT}/vmchooser/vmchooser.conf
+
+################################################################################
+### Functions used throughout the script
+################################################################################
+
+# function to write to stdout and logfile
+writelog () {
+  # write to stdout
+  echo -e "$1"
+  # log into file
+  echo -e "$1" >> ${OPENSLX_DEFAULT_LOGDIR}/run-vmgrid.${USER}.$$.log
+  # log into share dir, so that log is available in vm as well
+  echo -e "$1" >> ${vmgrid_rwmnt}/logs/run-vmgrid.${USER}.$$.log
+}
+
+################################################################################
+### Configure VMs for autostart and set RAM
+################################################################################
+
+# start to log, create shrare log dir
+mkdir -m 1777 -p ${vmgrid_rwmnt}/logs
+mkdir -m 1777 -p /tmp/vmgrid
+mkdir -p /tmp/vmgrid/${USER}
+echo "Starting to log at $(date)" \
+  >${vmgrid_rwmnt}/logs/run-vmgrid.${USER}.$$.log
+
+# remove blanks
+vmgrid_memratio=$(echo ${vmgrid_memratio} | sed -e "s, *,,g")
+vmgrid_startvms=$(echo ${vmgrid_startvms} | sed -e "s, *,,g")
+
+# get total amount of memory installed in your machine
+# TODO: stage 3? virtaulization plugin
+totalmem=$(expr $(grep -i "memtotal" /proc/meminfo | awk '{print $2}') / 1024)
+
+# get hostmem
+hostratio=$(echo ${vmgrid_memratio} | awk -F ',' '{print $6}')
+hostmem=$(expr ${totalmem} \* ${hostratio} / 100 2>/dev/null)
+if [ ${hostmem} -lt 256 2>/dev/null ]; then
+  hostmem=256
+  writelog "${hostmem} MB RAM reserved for host"
+fi
+
+# get other vm mem
+if [ -n "${vmchooser_active}" ]; then
+  othervmratio=$(echo ${vmgrid_memratio} | awk -F ',' '{print $5}')
+  othervmmem=$(expr ${totalmem} \* ${othervmratio} / 100 2>/dev/null)
+  if [ ${othervmmem} -lt 512 2>/dev/null ]; then
+    othervmmem=512
+    writelog "${othervmmem} MB RAM reserved for other virtualization solutions"
+  fi
+else
+  othervmratio=0
+  othervmmem=0
+fi
+
+# calculate freemem
+freemem=$(expr ${totalmem} - ${hostmem} - ${othervmmem} 2>/dev/null)
+if [ ${freemem} -lt 512 2>/dev/null ]; then
+  writelog "Not enough free RAM for this plugin, free: ${freemem} MB"
+  exit 1
+fi
+
+# ratio minus other vms and host
+restratio=$(expr 100 - ${hostratio} - ${othervmratio})
+
+# get clients mem ratio
+vmsumratios=0
+for i in {1..4}; do
+  vm[$i]=$(echo ${vmgrid_startvms} | awk -F ',' '{print $1}')
+  # remove ${vm[$i]} from list because of '{print $1}'
+  vmgrid_startvms=$(echo ${vmgrid_startvms} | sed -e "s,${vm[$i]}\,*,,")
+  vmratio[$i]=$(echo ${vmgrid_memratio} | awk -F ',' '{print $1}')
+  # remove ${vmratio[$i]} from list because of '{print $1}'
+  vmgrid_memratio=$(echo ${vmgrid_memratio} | sed -e "s/${vmratio[$i]},*//")
+  vmsumratios=$(expr ${vmsumratios} + ${vmratio[$i]} 2>/dev/null)
+done
+
+# ratio test: 100 - host - other vm + grid ratios
+ratiotest=$(expr 100 - ${restratio} + ${vmsumratios} 2>/dev/null)
+if [ ${ratiotest} -gt 100 ]; then
+  #writelog "you managed to get over 100% in ratio Einstein: ${ratiotest}%"
+  exit 1
+fi
+
+for i in {1..4}; do
+  # calculate vms mem: mem = $freemem * $vmratio/100 * 100/$restratio
+  # multiple of 4
+  vmmem[$i]=$(expr ${freemem} \* ${vmratio[$i]} / ${restratio} / 4 \* 4 \
+    2>/dev/null)
+  if [ -n "${vm[$i]}" ] && [ ${vmmem[$i]} -lt 512 2>/dev/null ]; then
+    writelog "Not enough free RAM for ${vm[$i]} (min. 512 MB), \c"
+    writelog "free: ${vmmem[$i]} MB"
+    unset vm[$i]
+  fi
+done
+
+################################################################################
+### Start the VMs
+################################################################################
+
+# start vms
+for i in {1..4}; do
+  if [ -n "${vm[$i]}" ]; then
+    alreadyrunning=$(ps aux | grep run-vmgrid.sh |  grep -v grep | \
+      grep "${vm[$i]}" | wc -l)
+    if [ ${alreadyrunning} -gt 0 2>/dev/null ]; then
+      writelog "${vm[$i]} already running, skipping!"
+    else
+      writelog "Starting ${vm[$i]} via run-vmgrid.sh with ${vmmem[$i]} MB RAM"
+      run-vmgrid.sh --forcemem ${vmmem[$i]} ${vm[$i]} 2>/dev/null &
+      echo $! > /tmp/vmgrid/${USER}/vmgrid.pids
+      # wait 5 secs for the next vm to start
+      sleep 10
+    fi
+  fi    
+done
+
+exit 0
+
+################################################################################
+### old stuff with xml files
+################################################################################
+#
+#filter_autostart=$(grep -i "active param" ${vmgrid_xmlpath}/*.xml | \
+#  grep -E "true|1" | awk -F ":" '{print $1}')
+#
+## wozu mehrere starten -> siehe cherkasova
+#
+#filter_virt=
+#for i in ${filter_autostart}; do
+#  filter_temp=
+#  filter_temp=$(cat $i | grep -i "virtualmachine param.*${vmgrid_virt}" | \
+#    wc -l)
+#    if [ ${filter_temp} -eq 1 ]; then
+#      filter_virt="${filter_virt} $i"
+#    fi
+#done
+#
+## remove already started ${vmgrid_startvm}
+#filter_virt=$(echo $filter_virt | \
+#  sed -e "s,${vmgrid_xmlpath}/${vmgrid_startvm%.xml}.xml,,g")
+#
+#sort_virt=$(grep 'priority param' ${vmgrid_xmlpath}/*.xml | sort -n | \
+#  awk -F ":" '{print $1}')
+#
+#for i in ${sort_virt}; do
+#  j=$(echo $filter_virt | grep $i | wc -l)
+#  if [ $j -eq 1 ]; then
+#    filter_virt=$(echo $filter_virt | sed -e "s,$i,,g")
+#    vmgrid ${i#${vmgrid_xmlpath}/}
+#  fi
+#done
+#
+## start vms /wo priority
+#for i in ${filter_virt}; do
+#  vmgrid ${i#${vmgrid_xmlpath}/}
+#done
+#
+#exit 0