1 files changed, 77 insertions, 0 deletions
diff --git a/extras/hook-scripts/start/post/S29CTDBsetup.sh b/extras/hook-scripts/start/post/S29CTDBsetup.sh
new file mode 100755
index 00000000000..da077a6fbeb
--- /dev/null
+++ b/extras/hook-scripts/start/post/S29CTDBsetup.sh
@@ -0,0 +1,77 @@
+#! /bin/bash
+# RHS-2.0 only
+# - The script mounts the 'meta-vol' on start 'event' on a known
+#   directory (eg. /gluster/lock)
+# - Adds the necessary configuration changes for ctdb in smb.conf and
+#   restarts smb service.
+# - P.S: There are other 'tasks' that need to be done outside this script
+#   to get CTDB based failover up and running.
+
+SMB_CONF=/etc/samba/smb.conf
+
+CTDB_MNT=/gluster/lock
+PROGNAME="ctdb"
+OPTSPEC="volname:"
+VOL=
+# $META is the volume that will be used by CTDB as a shared filesystem.
+# It is not desirable to use this volume for storing 'data' as well.
+# META is set to 'all' (viz. a keyword and hence not a legal volume name)
+# to prevent the script from running for volumes it was not intended.
+# User needs to set META to the volume that serves CTDB lockfile.
+META="all"
+
+function parse_args () {
+        ARGS=$(getopt -l $OPTSPEC  -name $PROGNAME $@)
+        eval set -- "$ARGS"
+
+        while true; do
+            case $1 in
+                --volname)
+                    shift
+                    VOL=$1
+                ;;
+
+                *)
+                     shift
+                     break
+                ;;
+
+            esac
+
+            shift
+        done
+}
+
+function add_glusterfs_ctdb_options () {
+        PAT="Share Definitions"
+        GLUSTER_CTDB_CONFIG="# ctdb config for glusterfs\n\tclustering = yes\n\tidmap backend = tdb2\n"
+        exists=`grep "clustering = yes" "$SMB_CONF"`
+        if [ "$exists" == "" ]
+        then
+            sed -i /"$PAT"/i\ "$GLUSTER_CTDB_CONFIG" "$SMB_CONF"
+        fi
+}
+
+function add_fstab_entry () {
+        volname=$1
+        mntpt=$2
+        mntent="`hostname`:/$volname $mntpt glusterfs defaults,transport=tcp 0 0"
+        exists=`grep "^$mntent" /etc/fstab`
+        if [ "$exists" == "" ]
+        then
+            echo "$mntent" >> /etc/fstab
+        fi
+}
+
+parse_args $@
+if [ "$META" = "$VOL" ]
+then
+    #expects ctdb service to manage smb
+    service smb stop
+    add_glusterfs_ctdb_options
+    mkdir -p $CTDB_MNT
+    sleep 5
+    mount -t glusterfs `hostname`:$VOL "$CTDB_MNT" && \
+        add_fstab_entry $VOL $CTDB_MNT
+    chkconfig ctdb on
+fi