From 8e64475d72c6db64240df21a20a02fbae22609e2 Mon Sep 17 00:00:00 2001
From: Vijay Bellur <vijay@gluster.com>
Date: Tue, 12 Jun 2012 14:45:27 +0530
Subject: hooks: Changes for ctdb start and stop

---
 extras/hook-scripts/start/post/S29CTDBsetup.sh   | 42 ++++++++-----
 extras/hook-scripts/stop/pre/S29CTDB-teardown.sh | 80 ++++++++++++++++++++++++
 2 files changed, 105 insertions(+), 17 deletions(-)
 create mode 100644 extras/hook-scripts/stop/pre/S29CTDB-teardown.sh

(limited to 'extras')

diff --git a/extras/hook-scripts/start/post/S29CTDBsetup.sh b/extras/hook-scripts/start/post/S29CTDBsetup.sh
index e256be1f3ea..7e44df21c58 100644
--- a/extras/hook-scripts/start/post/S29CTDBsetup.sh
+++ b/extras/hook-scripts/start/post/S29CTDBsetup.sh
@@ -1,5 +1,5 @@
 #! /bin/bash
-#non-portable - RHS-2.0 only
+# 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
@@ -20,16 +20,6 @@ VOL=
 # User needs to set META to the volume that serves CTDB lockfile.
 META="all"
 
-function sighup_samba () {
-        pid=`cat /var/run/smbd.pid`
-        if [ $pid != " " ]
-        then
-                kill -HUP $pid;
-        else
-                /etc/init.d/smb start
-        fi
-}
-
 function parse_args () {
         ARGS=$(getopt -l $OPTSPEC  -name $PROGNAME $@)
         eval set -- "$ARGS"
@@ -54,16 +44,34 @@ function parse_args () {
 
 function add_glusterfs_ctdb_options () {
         PAT="Share Definitions"
-        GLUSTER_CTDB_CONFIG="# ctdb config for glusterfs\n\tclustering = yes\n\tidmap backend = tdb2\n\tprivate dir = "$CTDB_MNT"\n"
+        GLUSTER_CTDB_CONFIG="# ctdb config for glusterfs\n\tclustering = yes\n\tidmap backend = tdb2\n"
+        exists=`grep "clustering = yes" "$SMB_CONF"`
+        if [ "$exists" == "" ]
+        then
+            sed -i /"$PAT"/i\ "$GLUSTER_CTDB_CONFIG" "$SMB_CONF"
+        fi
+}
 
-        sed -i /"$PAT"/i\ "$GLUSTER_CTDB_CONFIG" $SMB_CONF
+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" = "$VOL" ]
 then
-        add_glusterfs_ctdb_options
-        sighup_samba
-        mount -t glusterfs `hostname`:$VOL "$CTDB_MNT" &
+    #expects ctdb service to manage smb
+    service smb stop
+    add_glusterfs_ctdb_options
+    add_fstab_entry $VOL $CTDB_MNT
+    mkdir -p $CTDB_MNT
+    sleep 5
+    mount -t glusterfs `hostname`:$VOL "$CTDB_MNT"
+    chkconfig ctdb on
 fi
-
diff --git a/extras/hook-scripts/stop/pre/S29CTDB-teardown.sh b/extras/hook-scripts/stop/pre/S29CTDB-teardown.sh
new file mode 100644
index 00000000000..30316f92f68
--- /dev/null
+++ b/extras/hook-scripts/stop/pre/S29CTDB-teardown.sh
@@ -0,0 +1,80 @@
+#! /bin/bash
+#non-portable - RHS-2.0 only
+SMB_CONF=/etc/samba/smb.conf
+
+CTDB_MNT=/gluster/lock
+PROGNAME="ctdb"
+OPTSPEC="volname:"
+VOL=
+# $META is the volume that will be used by CTDB as a shared filesystem.
+# It is not desirable to use this volume for storing 'data' as well.
+# META is set to 'all' (viz. a keyword and hence not a legal volume name)
+# to prevent the script from running for volumes it was not intended.
+# User needs to set META to the volume that serves CTDB lockfile.
+META="all"
+
+function sighup_samba () {
+        pid=`cat /var/run/smbd.pid`
+        if [ "$pid" != "" ]
+        then
+                kill -HUP $pid;
+        else
+                /etc/init.d/smb start
+        fi
+}
+
+function parse_args () {
+        ARGS=$(getopt -l $OPTSPEC  -name $PROGNAME $@)
+        eval set -- "$ARGS"
+
+        while true; do
+            case $1 in
+                --volname)
+                    shift
+                    VOL=$1
+                ;;
+
+                *)
+                     shift
+                     break
+                ;;
+
+            esac
+
+            shift
+        done
+}
+
+
+function remove_ctdb_options () {
+        IFS=$'\n'
+        GLUSTER_CTDB_CONFIG=$'# ctdb config for glusterfs\n\tclustering = yes\n\tidmap backend = tdb2\n'
+
+        for line in $GLUSTER_CTDB_CONFIG
+        do
+                sed -i /"$line"/d $SMB_CONF
+        done
+        unset IFS
+}
+
+function remove_fstab_entry () {
+	volname=$1
+	mntpt=$2
+	mntent="`hostname`:/$volname $mntpt glusterfs defaults,transport=tcp 0 0"
+	esc_mntent=$(echo -e "$mntent" | sed 's/\//\\\//g')
+	exists=`grep "$mntent" /etc/fstab`
+	if [ "$exists" != " " ]
+	then
+		sed -i /"$esc_mntent"/d /etc/fstab
+	fi
+}
+
+parse_args $@
+if [ "$META" = "$VOL" ]
+then
+        umount "$CTDB_MNT"
+        chkconfig ctdb off
+	remove_fstab_entry $VOL $CTDB_MNT
+        remove_ctdb_options
+        sighup_samba
+fi
-- 
cgit