Setting tag VserverReference-4.2-14

[vserver-reference.git] / vserver-reference.init

diff --git a/vserver-reference.init b/vserver-reference.init
index a9b7e4f..410e807 100755 (executable)
--- a/vserver-reference.init
+++ b/vserver-reference.init
@@ -28,15 +28,19 @@ esac
 . /etc/init.d/functions
 
 # VServer definitions
-. /usr/lib/util-vserver/util-vserver-vars
+init_paths="/usr/lib64/util-vserver/util-vserver-vars /usr/lib/util-vserver/util-vserver-vars"
+for init_path in $init_paths ; do
+    [ -f $init_path ] && { source $init_path ; break; }
+done
+[ "$PACKAGE_NAME" = "util-vserver" ] || echo "WARNING: could not find util-vserver init file among $init_paths"
 
 # Save stdout and stderr
 exec 3>&1
 exec 4>&2
 
 # Redirect stdout and stderr to a log file
+exec >>/var/log/vserver-reference.log
 exec 2>&1
-exec &>>/var/log/vserver-reference.log
 
 echo "--- STARTING $(date) ---"  >&3 2>&4
 
@@ -55,13 +59,38 @@ shopt -s nullglob
 chmod 0000 "$__DEFAULT_VSERVERDIR"
 setattr --barrier "$__DEFAULT_VSERVERDIR"
 
+# Set the attribute to unlink so vclone does the right thing wrt to 
+# conserving space by linking and not copying unified files.
+
+if [ -f /proc/virtual/info ] ; then
+       x=$[ 16#`awk '/^VCIKernel:/ { print $2 }' /proc/virtual/info` ]; 
+       y=$[ (x >> 9) & 1]
+       if test "$y" = 1 ; then 
+               # COW support
+               find "$__DEFAULT_VSERVERDIR/.vref"/* -type f -print0 | xargs -0 setattr --iunlink
+       else 
+               # no COW; 
+               find "$__DEFAULT_VSERVERDIR/.vref"/* -type f -print0 | xargs -0 setattr --~iunlink
+       fi
+fi
+
+
 # Build reference images for system slices
-for systemvserver in "$__DEFAULT_VSERVERDIR/.vstub/"*.cloned ; do
+# xxx if several instances of systemslices get installed, only one gets instanciated
+for systemvserver in "$__DEFAULT_VSERVERDIR/.vstub/"*/*.cloned ; do
+    # e.g. NAME=planetflow
     NAME=$(basename $systemvserver .cloned)
+    DIR=$(dirname $systemvserver)
+    # e.g. SLICEFAMILY=planetlab-f8-i386
+    SLICEFAMILY=$(cat $systemvserver)
+    # deduce the actual name used in .vref by replacing the first part of slice-family 
+    # (pldistro) with the slice name
+    # e.g. VREFNAME=planetflow-f8-i386
+    VREFNAME=$(echo $SLICEFAMILY | sed -e "s,^[^-]*-,$NAME-,")
 
     # Copy base reference image
-    if [ ! -d "$__DEFAULT_VSERVERDIR/.vref/$NAME" ] ; then
-       echo -n $"Building VServer reference image for $NAME: " >&3 2>&4
+    if [ ! -d "$__DEFAULT_VSERVERDIR/.vref/$VREFNAME" ] ; then
+       echo -n $"Building VServer reference image for $NAME in $VREFNAME: " >&3 2>&4
 
        # Build in temporary directory
        mkdir -p "$__DEFAULT_VSERVERDIR/.vtmp"
@@ -69,14 +98,17 @@ for systemvserver in "$__DEFAULT_VSERVERDIR/.vstub/"*.cloned ; do
        mkdir -p "$__DEFAULT_VSERVERDIR/.vref"
 
        # build the systemvserver from the one it was originally cloned from
-       TYPE=$(cat $systemvserver)
-       REF="$__DEFAULT_VSERVERDIR/.vref/$TYPE"
-       "$_VCLONE" "$REF"/ "$TMP"/
-       RETVAL=$?
+       REF="$__DEFAULT_VSERVERDIR/.vref/$SLICEFAMILY"
+       if [ -d "$REF" ] ; then
+           "$_VCLONE" "$REF"/ "$TMP"/
+           RETVAL=$?
+       else
+           RETVAL=1
+       fi
 
-       # merge the stub with the reference to get the system slice
+       # merge the stub with the reference to get the system vserver
        if [ $RETVAL -eq 0 ] ; then
-           rsync -a "$__DEFAULT_VSERVERDIR/.vstub/$NAME"/ "$TMP"/
+           (cd "$DIR/$NAME"/ && find . | cpio -m -d -u -p "$TMP"/)
            RETVAL=$?
        fi
 
@@ -85,9 +117,10 @@ for systemvserver in "$__DEFAULT_VSERVERDIR/.vstub/"*.cloned ; do
 
        # Move it to its permanent location when complete
        if [ $RETVAL -eq 0 ] ; then
-           mv "$TMP" "$__DEFAULT_VSERVERDIR/.vref/$NAME"
+           mv "$TMP" "$__DEFAULT_VSERVERDIR/.vref/$VREFNAME"
            success >&3 2>&4
        else
+           rm -rf "$TMP"
            failure >&3 2>&4
        fi
        echo >&3 2>&4
@@ -99,7 +132,7 @@ echo -n $"Updating VServer reference images: " >&3 2>&4
 VROOTS="$__DEFAULT_VSERVERDIR/.vref/* $__DEFAULT_VSERVERDIR/.vcache/* $__DEFAULT_VSERVERDIR/${PLC_SLICE_PREFIX}_*"
 
 # Copy configuration files from host to slices
-for file in /etc/hosts /etc/resolv.conf /etc/yum.conf /etc/planetlab/node_id \
+for file in /etc/hosts /etc/resolv.conf /etc/planetlab/node_id \
             /etc/planetlab/plc_config* /etc/planetlab/php/* \
             /etc/pki/rpm-gpg/* ; do
     if [ -r $file ] ; then
@@ -109,8 +142,12 @@ for file in /etc/hosts /etc/resolv.conf /etc/yum.conf /etc/planetlab/node_id \
     fi
 done
 
-# Remove stale RPM locks
-rm -f $vroot/var/lib/rpm/__db*
+
+for vroot in $VROOTS ; do
+    # NOTE: without this step, the 'rpm --allmatches' step can hang on boot
+    # Remove stale RPM locks from all VROOT dirs
+    rm -f $vroot/var/lib/rpm/__db*
+done
 
 # (Re)install GPG signing keys
 if [ -d /etc/pki/rpm-gpg ] ; then