[Lxm-commits-diff] SF.net SVN: lxm: [3] trunk

[<ou...@us...>]

Revision: 3
          http://lxm.svn.sourceforge.net/lxm/?rev=3&view=rev
Author:   outchy
Date:     2007-11-06 12:59:52 -0800 (Tue, 06 Nov 2007)

Log Message:
-----------
project introduction

Added Paths:
-----------
    trunk/INSTALLING
    trunk/README
    trunk/bash_scripts/
    trunk/bash_scripts/lxmclone
    trunk/bash_scripts/lxmdelete
    trunk/bash_scripts/lxmdisplay
    trunk/bash_scripts/lxmsetboot
    trunk/bash_scripts/lxmsnapshot
    trunk/bash_scripts/lxmstart
    trunk/settings/
    trunk/settings/lxm

Added: trunk/INSTALLING
===================================================================
--- trunk/INSTALLING	                        (rev 0)
+++ trunk/INSTALLING	2007-11-06 20:59:52 UTC (rev 3)
@@ -0,0 +1,40 @@
+******************************************************************************
+*        Lightweight Xen Manager (lxm) http://lxm.sourceforge.net            *
+******************************************************************************
+
+Content:
+  I. Prerequisites
+  II. Installation guide
+
+
+  I. Prerequisites
+
+  The library is based on Xen tools version 3.1 and specialy the "xm" tool,
+also knwon as "Xen Manager".
+
+  The low level scripts require recent version of the following standard tools:
+    - bash shell
+    - grep
+    - awk
+    - dd
+    - lvm
+    - cp, mv, cat...
+
+  The console user interface requires the following software:
+    - python
+    - ncurses with support for python
+
+
+  II. Installation guide
+
+  Note that this software is beta software, make sure you know what you're
+doing before executing the following operation. The lxm developpers cannot be
+taken for reponsable for any problems happening when installing or executing
+lxm. Any bug report is welcome.
+
+  Copy the content of ./bash_scripts to /sbin
+  Copy the content of ./settings to /etc
+  Copy the content of ./console_interface to /sbin if you want to install the
+console user interface.
+
+


Property changes on: trunk/INSTALLING
___________________________________________________________________
Name: svn:eol-style
   + native

Added: trunk/README
===================================================================
--- trunk/README	                        (rev 0)
+++ trunk/README	2007-11-06 20:59:52 UTC (rev 3)
@@ -0,0 +1,61 @@
+******************************************************************************
+*       Lighweight Xen Manager (lxm) http://lxm.sourceforge.net/             *
+******************************************************************************
+
+Content:
+
+I. Introduction
+II. Product details
+III. License and installation notes
+IV. About
+
+
+ I. Introduction
+
+  The lightweight Xen Manager project is an aggregate of low-level bash scripts
+to manage DomU execution and a minimalist console interface written in python.
+The application is perfectly designed to run on DomO with few dependencies (cf
+installation notes below).
+
+
+ II. Product details
+
+  This project consists of several bash scripts requiring few dependencies
+designed to handle most commonly encountered operations:
+  - lxmclone:    clone resources associated to an existing virtual machine
+                 (virtual disks stored as files, virtual disks stored as
+		 logical volumes) and create a configuration file for this new
+		 virtual machine.
+  - lxmdelete:   delete an existing virtual machine and its associated
+                 resources (virtual disks stored as files, virtual disks stored
+		 as logical volumes).
+  - lxmdisplay:  start a new X server and a vncviewer attached to the specified
+                 virtual machine (which has to previously be launched).
+  - lxmsetboot:  change the boot device of a shutdowned virtual machine.
+  - lxmsnapshot: take a snapshot of the resources of an existing virtual
+                 machine (virtual disks stored as files are cloned, virtual
+		 disks stored as logical volumes become snapshots - faster) and
+		 create a configuration file for this new machine.
+  - lxmstart:    start a virtual machine designed by its name and launch a vnc
+                 viewer attached to its screen.
+
+
+ III. License and installation notes.
+
+  Refers to LICENSE and INSTALLING files in the root of this project archive.
+
+
+ IV. About
+
+  This software is being actively developped by me. It's still unstable and
+actively developped; you may use it at your own risks. Do not assume that any
+feature present will be continued in the future.
+
+  This project was founded on October 2007 by
+Florent Ouchet <ou...@us...>; all portions of code are
+copyrighted by their respective authors.
+
+  Volunteers are welcome to develop the projects, provides bug fixes and report
+issues against lxm. You may contact me at ou...@us... for
+further assistance.
+


Property changes on: trunk/README
___________________________________________________________________
Name: svn:eol-style
   + native

Added: trunk/bash_scripts/lxmclone
===================================================================
--- trunk/bash_scripts/lxmclone	                        (rev 0)
+++ trunk/bash_scripts/lxmclone	2007-11-06 20:59:52 UTC (rev 3)
@@ -0,0 +1,283 @@
+#!/bin/bash
+# clone an existing virtual machine and all its associated disks
+
+source /etc/lxm
+
+if [ -z "$1" ]; then
+  echo usage: $0 sourcename clonename
+  exit 1
+fi
+
+SOURCENAME=$1
+CLONENAME=$2
+
+for CONFDIR in $XENCONFPATH; do
+  if [ -f "$CONFDIR/$SOURCENAME" ]; then
+    echo found configuration file $CONFDIR/$SOURCENAME
+
+    echo probing disk list for virtual machine $SOURCENAME
+    DISKLIST=`echo disk | python -i $CONFDIR/$SOURCENAME 2>/dev/null`
+    
+    if [ ! "$?" == "0" ]; then
+      echo error while probing disk list
+      exit 1
+    fi
+
+    echo disk list is "$DISKLIST"
+
+    FILECOPY=`echo $DISKLIST | awk "/\[/ {
+        sep1 = \"['\\\\\"]\"
+	sep2 = \",\"
+	sep3 = \":\"
+        split (\\\$0, a, sep1)
+	i = 2
+	while (i <= length(a)) {
+	  split (a[i], b, sep2)
+	  if ( b[3] == \"w\" ) {
+	    c = index(b[2], \":cdrom\")
+	    if (c == 0) {
+  	      split (b[1], d, sep3)
+	      if ( d[1] == \"file\" ) {
+	        print d[2]
+	      }
+	    }
+	  }
+	  i++
+	  i++
+	}
+      }"`
+
+    LVCOPY=`echo $DISKLIST | awk "/\[/ {
+        sep1 = \"['\\\\\"]\"
+	sep2 = \",\"
+	sep3 = \":\"
+	split(\\\$0, a, sep1)
+	i = 2
+	while (i <= length(a)) {
+	  split (a[i], b, sep2)
+	  if ( b[3] == \"w\" ) {
+	    c = index(b[2], \":cdrom\")
+	    if (c == 0) {
+	      split (b[1], d, sep3)
+	      if ( d[1] == \"phy\" ) {
+	        print d[2]
+              }
+	    }
+	  }
+	  i++
+	  i++
+	}
+      }"`
+
+    STATUS=0
+    if [ ! -z "$LVCOPY" ]; then
+      echo checking logical volumes to be copied
+      for LV in $LVCOPY ; do
+        echo checking logical volume: $LV
+        lvdisplay $LV > /dev/null
+        if [ ! "$?" == "0" ]; then
+          STATUS=1
+	  echo volume $LV is not a logical volume, unable to clone it
+	fi
+      done
+    fi
+
+    if [ $STATUS == "1" ]; then
+      echo fatal error
+      exit 1
+    fi
+
+    STATUS=0
+    if [ ! -z "$FILECOPY" ]; then
+      for FILE in $FILECOPY ; do
+        # converting file name
+        NEWFILE=`echo "$FILE" | awk " // {
+	    sep1 = \"/\"
+	    split (\\\$0, a, sep1)
+	    b = length(a)
+	    c = a[b]
+	    if ( c == \"$SOURCENAME\" ) {
+              c = \"$CLONENAME\"
+	    } else {
+  	      c = (c \"_$CLONENAME\")
+	    }
+	    b--
+	    while ( b >= 1 ) {
+	      c = (a[b] \"/\" c)
+	      b--
+	    }
+	    print c
+	  }"`
+	if [ ! "$?" == "0" ]; then
+	  echo failed to convert file name for file $FILE
+	  exit 1
+	fi
+        echo file $FILE will be cloned to $NEWFILE, this may take a while...
+
+        cp $FILE $NEWFILE
+        if [ "$?" == "0" ]; then
+	  echo file $FILE successfully cloned to $NEWFILE
+	else
+	  echo failed to clone file $FILE to $NEWFILE
+	  exit 1
+	fi
+	STATUS=1
+      done
+    fi
+  
+    if [ ! -z "$LVCOPY" ]; then
+      for LV in $LVCOPY ; do
+        LVDETAIL=`lvdisplay $LV`
+	if [ ! "$?" == "0" ]; then
+	  echo failed to get details about logical volume $LV
+	  exit 1
+	fi
+        # extracting volume group name
+	VGNAME=`echo "$LVDETAIL" | awk " /VG Name/ {
+	    split (\\\$0, a)
+	    print a[length(a)]
+	  }"`
+	if [ -z "$VGNAME" -o ! "$?" == "0" ]; then
+	  echo failed to extract volume group name of logical volume $LV
+	  exit 1
+	fi
+	# extracting logical volume size
+	LVSIZE=`echo "$LVDETAIL" | awk " /LV Size/ {
+	    split (\\\$0, a)
+	    b = length(a)
+	    split (a[b], c, \"\")
+	    print (a[b-1] c[1])
+	  }"`
+	if [ -z "$LVSIZE" -o ! "$?" == "0" ]; then
+	  echo failed to extract size of logical volume $LV
+	  exit 1
+	fi
+        # converting logical volume name
+	NEWLV=`echo "$LV" | awk " // {
+	    sep1 = \"/\"
+	    split (\\\$0, a, sep1)
+	    b = a[length(a)]
+	    if ( b == \"$SOURCENAME\" ) {
+	      b = \"$CLONENAME\"
+	    } else {
+	      b = ( b \"_$CLONENAME\" )
+	    }
+	    print b
+	  }"`
+	if [ -z "$NEWLV" -o ! "$?" == "0" ]; then
+	  echo failed to convert volume name of logical volume $LV
+	  exit 1
+	fi
+	# converting logical volume full name
+	FULLNAMENEWLV=`echo "$LV" | awk " // {
+	    sep1 = \"/\"
+	    split (\\\$0, a, sep1)
+	    b = length(a)
+	    c = a[b]
+	    if ( c == \"$SOURCENAME\" ) {
+	      c = \"$CLONENAME\"
+	    } else {
+	      c = ( c \"_$CLONENAME\" )
+	    }
+	    b--
+	    while ( b >= 1) {
+              c = (a[b] sep1 c)
+	      b--
+	    }
+	    print c
+	  }"`
+	if [ -z "$FULLNAMENEWLV" -o ! "$?" == "0" ]; then
+	  echo failed to convert full name of logical volume $LV
+	  exit 1
+	fi
+        echo logical volume $LV will be cloned to $NEWLV in volume group $VGNAME with size $LVSIZE, full name is $FULLNAMENEWLV
+
+        lvcreate --size $LVSIZE --name $NEWLV $VGNAME
+	if [ ! "$?" == "0" ]; then
+	  echo failed to create logical volume $NEWLV
+	  exit 1
+	fi
+
+        echo copying logical volume content, this may take a while...
+	cat $LV > $FULLNAMENEWLV
+	if [ "$?" == "0" ]; then
+	  echo logical volume $LV successfully cloned to $NEWLV
+	else
+	  echo failed to clone logical volume $LV to $NEWLV
+	  exit 1
+	fi
+	STATUS=1
+      done
+    fi
+
+    echo creating configuration file $CONFDIR/$CLONENAME
+    cat $CONFDIR/$SOURCENAME | awk " // {
+        a = index(\$0, \"name\")
+	b = index(\$0, \"disk\")
+	sep1 = \"['\\\"]\"
+	sep2 = \",\"
+	sep3 = \"/\"
+	if ( a == 1 ) {
+	  split(\$0, c, sep1)
+	  d = length(c)
+	  e = (c[1] \"\\\"\" \"$CLONENAME\" )
+	  f = 3
+	  while ( f <= d ) {
+            e = ( e \"\\\"\" c[f] )
+	    f++
+	  }
+          print e
+	} else if ( b == 1 ) {
+          split(\$0, g, sep1)
+          h = length(g)
+	  i = g[1]
+	  j = 2
+	  k = 0
+	  while ( j <= h ) {
+	    if (k == 0) {
+	      k = index(g[j], \"]\")
+	    }
+	    if ((k == 0) && ((j % 2) == 0)) {
+	      split(g[j], l, sep2)
+	      m = index(l[2], \":cdrom\")
+	      if ((m == 0) && (l[3] == \"w\")) {
+	        split (l[1], n, sep3)
+		o = length(n)
+		p = n[o]
+		if ( p == \"$SOURCENAME\" ) {
+		  p = \"$CLONENAME\"
+		} else {
+		  p = ( p \"_$CLONENAME\" )
+		}
+		o--
+		while ( o >= 1) {
+		  p = ( n[o] sep3 p )
+                  o--
+		}
+		i = ( i \"'\" p sep2 l[2] sep2 l[3] )
+	      } else {
+	        i = ( i \"'\" g[j] )
+	      }
+	    } else {
+	      i = ( i \"'\" g[j] )
+	    }
+            j++
+	  }
+	  print i
+        } else {
+          print \$0
+	}
+      }" > $CONFDIR/$CLONENAME
+    if [ "$?" == "0" ]; then
+      echo configuration file $CONFDIR/$CLONENAME successfully created
+    else
+      echo failed to create configuration file $CONFDIR/$CLONENAME
+    fi
+
+    exit 0
+  fi
+done
+
+echo failed to find a configuration file for virtual machine $SOURCENAME
+exit 1
+


Property changes on: trunk/bash_scripts/lxmclone
___________________________________________________________________
Name: svn:executable
   + *
Name: svn:eol-style
   + native

Added: trunk/bash_scripts/lxmdelete
===================================================================
--- trunk/bash_scripts/lxmdelete	                        (rev 0)
+++ trunk/bash_scripts/lxmdelete	2007-11-06 20:59:52 UTC (rev 3)
@@ -0,0 +1,135 @@
+#!/bin/bash
+# delete an existing virtual machine and all its associated disks
+
+source /etc/lxm
+
+if [ -z "$1" ]; then
+  echo usage: $0 name [ FORCE ]
+  exit 1
+fi
+
+VMNAME=$1
+
+for CONFDIR in $XENCONFPATH; do
+  if [ -f "$CONFDIR/$VMNAME" ]; then
+    echo found configuration file $CONFDIR/$VMNAME
+
+    echo probing disk list for virtual machine $VMNAME
+    DISKLIST=`echo disk | python -i $CONFDIR/$VMNAME 2>/dev/null`
+    
+    if [ ! "$?" == "0" ]; then
+      echo error while probing disk list
+      exit 1
+    fi
+
+    echo disk list is "$DISKLIST"
+
+    FILEREMOVE=`echo $DISKLIST | awk "/\[/ {
+        sep1 = \"['\\\\\"]\"
+	sep2 = \",\"
+	sep3 = \":\"
+        split (\\\$0, a, sep1)
+	i = 2
+	while (i <= length(a)) {
+	  split (a[i], b, sep2)
+	  if ( b[3] == \"w\" ) {
+	    c = index(b[2], \":cdrom\")
+	    if (c == 0) {
+  	      split (b[1], d, sep3)
+	      if ( d[1] == \"file\" ) {
+	        print d[2]
+	      }
+	    }
+	  }
+	  i++
+	  i++
+	}
+      }"`
+
+    LVREMOVE=`echo $DISKLIST | awk "/\[/ {
+        sep1 = \"['\\\\\"]\"
+	sep2 = \",\"
+	sep3 = \":\"
+	split(\\\$0, a, sep1)
+	i = 2
+	while (i <= length(a)) {
+	  split (a[i], b, sep2)
+	  if ( b[3] == \"w\" ) {
+	    c = index(b[2], \":cdrom\")
+	    if (c == 0) {
+	      split (b[1], d, sep3)
+	      if ( d[1] == \"phy\" ) {
+	        print d[2]
+              }
+	    }
+	  }
+	  i++
+	  i++
+	}
+      }"`
+
+    STATUS=0
+
+    if [ ! -z "$FILEREMOVE" ]; then
+      for FILE in $FILEREMOVE ; do
+        echo the following volume file will be deleted: $FILE
+        if [ "$2" == "FORCE" ]; then
+          rm -f $FILE
+	else
+	  rm -i $FILE
+	fi
+        if [ "$?" == "0" ]; then
+	  echo file $FILE successfully deleted
+	else
+	  echo failed to delete file $FILE
+	  exit 1
+	fi
+	STATUS=1
+      done
+    fi
+    if [ ! -z "$LVREMOVE" ]; then
+      for LV in $LVREMOVE ; do
+        echo the following logical volume will be deleted: $LV
+        lvdisplay $LV > /dev/null
+        if [ "$?" == "0" ]; then
+	  if [ "$2" == "FORCE" ]; then
+	    lvremove -f $LV
+	  else
+	    lvremove $LV
+	  fi
+	  if [ "$?" == "0" ]; then
+	    echo logical volume $LV successfully removed
+	  else
+	    echo failed to remove logical volume $LV
+	    exit 1
+	  fi
+        else
+	  echo $LV is not a virtual volume, skipped
+	fi
+      done
+    fi
+    
+    if [ STATUS == "0" ]; then
+      echo nothing to do
+    fi
+
+    echo removing configuration file $CONFDIR/$VMNAME
+    if [ "$2" == "FORCE" ]; then
+      rm -f $CONFDIR/$VMNAME
+    else
+      rm -i $CONFDIR/$VMNAME
+    fi
+    if [ "$?" == "0" ]; then
+      echo configuration file $CONFDIR/$VMNAME successfully removed
+    else
+      echo failed to remove configuration file $CONFDIR/$VMNAME
+      exit 1
+    fi
+
+    exit 0
+  fi
+done
+
+echo failed to find a configuration file for virtual machine $VMNAME
+exit 1
+


Property changes on: trunk/bash_scripts/lxmdelete
___________________________________________________________________
Name: svn:executable
   + *
Name: svn:eol-style
   + native

Added: trunk/bash_scripts/lxmdisplay
===================================================================
--- trunk/bash_scripts/lxmdisplay	                        (rev 0)
+++ trunk/bash_scripts/lxmdisplay	2007-11-06 20:59:52 UTC (rev 3)
@@ -0,0 +1,72 @@
+#!/bin/bash
+# launch a virtual machine and its associated VNC client on a new X client
+
+source /etc/lxm
+
+if [ -z "$1" ]; then
+  echo Usage $0 vm-name
+  exit 1
+fi
+
+VMNAME=$1
+
+STATUS=0
+MAXLOOP=10
+DISPLAYID=0
+
+while [ "$STATUS" == 0 ]; do
+  if [ ! -f "$XLOCKDIR/.X$DISPLAYID-lock" ]; then
+    echo using display :$DISPLAYID
+
+    echo probing vnc listen port number for virtual machine $VMNAME
+    PORTNUMBER=`xm list --long $VMNAME | awk "/location 0.0.0.0:/ {
+        colon=\":\"
+        rightpar=\")\"
+        split (\\\$0, a, colon)
+        split (a[2], b, rightpar)
+        print b[1]
+      }"`
+    
+    if [ -z "$PORTNUMBER" -o ! "$?" == "0" ]; then
+      echo error probing vnc listen port number, is virtual machine $VMNAME launched?
+      exit 1
+    fi
+
+    echo VNC server is listening on port $PORTNUMBER
+
+    echo launching X client
+    X :$DISPLAYID &
+    if [ ! "$?" == "0" ]; then
+      echo error launching X client on display :$DISPLAYID
+      exit 1
+    fi
+
+    echo sleeping 2 seconds...
+    sleep 2
+
+    echo launching vnc viewer
+    env DISPLAY=":$DISPLAYID" vncviewer -MenuKey=F12 -Shared=1 -FullScreen=1 -SendClipboard=0 -AcceptClipboard=0 -FullColor=1 -DotWhenNoCursor=0 -UseLocalCursor=0 127.0.0.1:$PORTNUMBER
+      
+    if [ ! "$?" == "0" ]; then
+      echo error launching vncviewer
+    fi
+
+    echo killing X client
+    XPID=`cat $XLOCKDIR/.X$DISPLAYID-lock`
+    echo X client PID is $XPID
+    kill -s SIGTERM $XPID
+    if [ "$?" == "0" ]; then
+      echo X client successfully killed
+    else
+      echo failed to kill X client
+    fi	
+
+    STATUS=1
+  fi
+  
+  DISPLAYID=`expr $DISPLAYID + 1`
+  if [ "$DISPLAYID" == "$MAXLOOP" ]; then
+    STATUS=1
+  fi
+done
+


Property changes on: trunk/bash_scripts/lxmdisplay
___________________________________________________________________
Name: svn:executable
   + *
Name: svn:eol-style
   + native

Added: trunk/bash_scripts/lxmsetboot
===================================================================
--- trunk/bash_scripts/lxmsetboot	                        (rev 0)
+++ trunk/bash_scripts/lxmsetboot	2007-11-06 20:59:52 UTC (rev 3)
@@ -0,0 +1,49 @@
+#!/bin/bash
+# set boot device for a virtual machine
+
+source /etc/lxm
+
+if [ -z "$1" -o -z "$2" ]; then
+  echo Usage $0 vm-name [a|c|d]
+  exit 1
+fi
+
+VMNAME=$1
+BOOTDEVICE=$2
+
+for CONFDIR in $XENCONFPATH; do
+  if [ -f "$CONFDIR/$VMNAME" ]; then
+    echo modifying virtual machine $CONFDIR/$VMNAME
+
+    cat $CONFDIR/$VMNAME | awk " // {
+        a = index(\$0, \"boot\")
+	sep1 = \"['\\\"]\"
+	if ( a == 1 ) {
+          split (\$0, b, sep1)
+	  c = length(b)
+	  d = ( b[1] \"\\\"\" \"$BOOTDEVICE\" )
+	  e = 3
+	  while ( e <= c) {
+            d = ( d \"\\\"\" b[e] )
+	    e++
+	  }
+	  print d
+	} else {
+          print \$0
+	}
+      }" > $CONFDIR/$VMNAME.new
+    
+    if [ "$?" == "0" ]; then
+      mv $CONFDIR/$VMNAME.new $CONFDIR/$VMNAME
+      echo success
+      exit 0
+    else
+      echo failed to modify virtual machine script $CONFDIR/$VMNAME
+      exit 1
+    fi
+  fi
+done
+
+echo virtual machine $VMNAME not found in $XENCONFPATH
+exit 1
+


Property changes on: trunk/bash_scripts/lxmsetboot
___________________________________________________________________
Name: svn:executable
   + *
Name: svn:eol-style
   + native

Added: trunk/bash_scripts/lxmsnapshot
===================================================================
--- trunk/bash_scripts/lxmsnapshot	                        (rev 0)
+++ trunk/bash_scripts/lxmsnapshot	2007-11-06 20:59:52 UTC (rev 3)
@@ -0,0 +1,271 @@
+#!/bin/bash
+# take a snapshot of an existing virtual machine and all its associated disks
+# taking snapshot of logical volumes over LVM is handled
+# vdb as files are copied
+
+source /etc/lxm
+
+if [ -z "$1" ]; then
+  echo usage: $0 sourcename snapshotname
+  exit 1
+fi
+
+SOURCENAME=$1
+SNAPSHOTNAME=$2
+
+for CONFDIR in $XENCONFPATH; do
+  if [ -f "$CONFDIR/$SOURCENAME" ]; then
+    echo found configuration file $CONFDIR/$SOURCENAME
+
+    echo probing disk list for virtual machine $SOURCENAME
+    DISKLIST=`echo disk | python -i $CONFDIR/$SOURCENAME 2>/dev/null`
+    
+    if [ ! "$?" == "0" ]; then
+      echo error while probing disk list
+      exit 1
+    fi
+
+    echo disk list is "$DISKLIST"
+
+    FILECOPY=`echo $DISKLIST | awk "/\[/ {
+        sep1 = \"['\\\\\"]\"
+	sep2 = \",\"
+	sep3 = \":\"
+        split (\\\$0, a, sep1)
+	i = 2
+	while (i <= length(a)) {
+	  split (a[i], b, sep2)
+	  if ( b[3] == \"w\" ) {
+	    c = index(b[2], \":cdrom\")
+	    if (c == 0) {
+  	      split (b[1], d, sep3)
+	      if ( d[1] == \"file\" ) {
+	        print d[2]
+	      }
+	    }
+	  }
+	  i++
+	  i++
+	}
+      }"`
+
+    LVSNAPSHOT=`echo $DISKLIST | awk "/\[/ {
+        sep1 = \"['\\\\\"]\"
+	sep2 = \",\"
+	sep3 = \":\"
+	split(\\\$0, a, sep1)
+	i = 2
+	while (i <= length(a)) {
+	  split (a[i], b, sep2)
+	  if ( b[3] == \"w\" ) {
+	    c = index(b[2], \":cdrom\")
+	    if (c == 0) {
+	      split (b[1], d, sep3)
+	      if ( d[1] == \"phy\" ) {
+	        print d[2]
+              }
+	    }
+	  }
+	  i++
+	  i++
+	}
+      }"`
+
+    STATUS=0
+    if [ ! -z "$LVSNAPSHOT" ]; then
+      echo checking logical volumes to be created
+      for LV in $LVSNAPSHOT ; do
+        echo checking logical volume: $LV
+        LVDETAIL=`lvdisplay $LV`
+	if [ "$?" == "0" ]; then
+	  ISSNAPSHOT=`echo "$LVDETAIL" | awk " /LV snapshot status/ {
+	      a = index(\\\$0, \"destination\")
+	      if (a > 0) {
+	        print \"1\"
+	      }
+	    }"`
+	  if [ ! "$?" == "0" ]; then
+	    echo failed to check if volume $LV is a snapshot
+	    exit 1
+	  fi
+	  if [ ! -z "$ISSNAPSHOT" ]; then
+	    STATUS=1
+	    echo volume $LV is already a snapshot of an other volume
+	  fi
+	else
+          STATUS=1
+	  echo volume $LV is not a logical volume, unable to take a snapshot
+	fi
+      done
+    fi
+
+    if [ $STATUS == "1" ]; then
+      echo fatal error
+      exit 1
+    fi
+
+    STATUS=0
+    if [ ! -z "$FILECOPY" ]; then
+      for FILE in $FILECOPY ; do
+        # converting file name
+        NEWFILE=`echo "$FILE" | awk " // {
+	    sep1 = \"/\"
+	    split (\\\$0, a, sep1)
+	    b = length(a)
+	    c = a[b]
+	    if ( c == \"$SOURCENAME\" ) {
+              c = \"$SNAPSHOTNAME\"
+	    } else {
+  	      c = (c \"_$SNAPSHOTNAME\")
+	    }
+	    b--
+	    while ( b >= 1 ) {
+	      c = (a[b] \"/\" c)
+	      b--
+	    }
+	    print c
+	  }"`
+	if [ ! "$?" == "0" ]; then
+	  echo failed to convert file name for file $FILE
+	  exit 1
+	fi
+        echo file $FILE will be cloned to $NEWFILE
+
+        cp $FILE $NEWFILE
+        if [ "$?" == "0" ]; then
+	  echo file $FILE successfully cloned to $NEWFILE
+	else
+	  echo failed to clone file $FILE to $NEWFILE
+	  exit 1
+	fi
+	STATUS=1
+      done
+    fi
+  
+    if [ ! -z "$LVSNAPSHOT" ]; then
+      for LV in $LVSNAPSHOT ; do
+        LVDETAIL=`lvdisplay $LV`
+	if [ ! "$?" == "0" ]; then
+	  echo failed to get details about logical volume $LV
+	  exit 1
+	fi
+        # extracting volume group name
+	VGNAME=`echo "$LVDETAIL" | awk " /VG Name/ {
+	    split (\\\$0, a)
+	    print a[length(a)]
+	  }"`
+	if [ -z "$VGNAME" -o ! "$?" == "0" ]; then
+	  echo failed to extract volume group name of logical volume $LV
+	  exit 1
+	fi
+	# extracting logical volume size
+	LVSIZE=`echo "$LVDETAIL" | awk " /LV Size/ {
+	    split (\\\$0, a)
+	    b = length(a)
+	    split (a[b], c, \"\")
+	    print (a[b-1] c[1])
+	  }"`
+	if [ -z "$LVSIZE" -o ! "$?" == "0" ]; then
+	  echo failed to extract size of logical volume $LV
+	  exit 1
+	fi
+        # converting logical volume name
+	NEWLV=`echo "$LV" | awk " // {
+	    sep1 = \"/\"
+	    split (\\\$0, a, sep1)
+	    b = a[length(a)]
+	    if ( b == \"$SOURCENAME\" ) {
+	      b = \"$SNAPSHOTNAME\"
+	    } else {
+	      b = ( b \"_$SNAPSHOTNAME\" )
+	    }
+	    print b
+	  }"`
+	if [ -z "$NEWLV" -o ! "$?" == "0" ]; then
+	  echo failed to convert volume name of logical volume $LV
+	  exit 1
+	fi
+	echo logical volume $LV will source a snapshot named $NEWLV in volume group $VGNAME with size $LVSIZE
+
+        lvcreate --size $LVSIZE --snapshot --name $NEWLV $LV
+	if [ "$?" == "0" ]; then
+	  echo logical volume $NEWLV successfully created
+	else
+	  echo failed to create logical volume $NEWLV
+	  exit 1
+	fi
+	STATUS=1
+      done
+    fi
+
+    echo creating configuration file $CONFDIR/$SNAPSHOTNAME
+    cat $CONFDIR/$SOURCENAME | awk " // {
+        a = index(\$0, \"name\")
+	b = index(\$0, \"disk\")
+	sep1 = \"['\\\"]\"
+	sep2 = \",\"
+	sep3 = \"/\"
+	if ( a == 1 ) {
+	  split(\$0, c, sep1)
+	  d = length(c)
+	  e = (c[1] \"\\\"\" \"$SNAPSHOTNAME\" )
+	  f = 3
+	  while ( f <= d ) {
+            e = ( e \"\\\"\" c[f] )
+	    f++
+	  }
+          print e
+	} else if ( b == 1 ) {
+          split(\$0, g, sep1)
+          h = length(g)
+	  i = g[1]
+	  j = 2
+	  k = 0
+	  while ( j <= h ) {
+	    if (k == 0) {
+	      k = index(g[j], \"]\")
+	    }
+	    if ((k == 0) && ((j % 2) == 0)) {
+	      split(g[j], l, sep2)
+	      m = index(l[2], \":cdrom\")
+	      if ((m == 0) && (l[3] == \"w\")) {
+	        split (l[1], n, sep3)
+		o = length(n)
+		p = n[o]
+		if ( p == \"$SOURCENAME\" ) {
+		  p = \"$SNAPSHOTNAME\"
+		} else {
+		  p = ( p \"_$SNAPSHOTNAME\" )
+		}
+		o--
+		while ( o >= 1) {
+		  p = ( n[o] sep3 p )
+                  o--
+		}
+		i = ( i \"'\" p sep2 l[2] sep2 l[3] )
+	      } else {
+	        i = ( i \"'\" g[j] )
+	      }
+	    } else {
+	      i = ( i \"'\" g[j] )
+	    }
+            j++
+	  }
+	  print i
+        } else {
+          print \$0
+	}
+      }" > $CONFDIR/$SNAPSHOTNAME
+    if [ "$?" == "0" ]; then
+      echo configuration file $CONFDIR/$SNAPSHOTNAME successfully created
+    else
+      echo failed to create configuration file $CONFDIR/$SNAPSHOTNAME
+    fi
+
+    exit 0
+  fi
+done
+
+echo failed to find a configuration file for virtual machine $SOURCENAME
+exit 1
+


Property changes on: trunk/bash_scripts/lxmsnapshot
___________________________________________________________________
Name: svn:executable
   + *
Name: svn:eol-style
   + native

Added: trunk/bash_scripts/lxmstart
===================================================================
--- trunk/bash_scripts/lxmstart	                        (rev 0)
+++ trunk/bash_scripts/lxmstart	2007-11-06 20:59:52 UTC (rev 3)
@@ -0,0 +1,33 @@
+#!/bin/bash
+# launch a virtual machine and call lxmdisplay
+
+source /etc/lxm
+
+if [ -z "$1" ]; then
+  echo Usage $0 vm-name
+  exit 1
+fi
+
+VMNAME=$1
+
+for CONFDIR in $XENCONFPATH; do
+  if [ -f "$CONFDIR/$VMNAME" ]; then
+    echo launching virtual machine $CONFDIR/$VMNAME
+    xm create $CONFDIR/$VMNAME
+    if [ ! "$?" = "0" ]; then
+      echo error while launching virtual machine $VMNAME
+      exit 1
+    fi
+
+    # auto execute viewer
+    if [ ! $2 = "NODISPLAY" ]; then
+      lxmdisplay $VMNAME
+    fi
+
+    exit 0
+  fi
+done
+
+echo virtual machine $VMNAME not found in $XENCONFPATH
+exit 1
+


Property changes on: trunk/bash_scripts/lxmstart
___________________________________________________________________
Name: svn:executable
   + *
Name: svn:eol-style
   + native

Added: trunk/settings/lxm
===================================================================
--- trunk/settings/lxm	                        (rev 0)
+++ trunk/settings/lxm	2007-11-06 20:59:52 UTC (rev 3)
@@ -0,0 +1,10 @@
+#
+# configuration file for light xen manager
+#
+
+# virtual machine configuration paths
+
+XENCONFPATH="/etc/xen/conf"
+
+# X lock dir
+XLOCKDIR="/tmp"


Property changes on: trunk/settings/lxm
___________________________________________________________________
Name: svn:executable
   + *
Name: svn:eol-style
   + native


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