2 files changed, 125 insertions, 1 deletions
diff --git a/extras/hook-scripts/set/post/Makefile.am b/extras/hook-scripts/set/post/Makefile.am
index 3ec25d94134..99dfaa3eafb 100644
--- a/extras/hook-scripts/set/post/Makefile.am
+++ b/extras/hook-scripts/set/post/Makefile.am
@@ -1 +1 @@
-EXTRA_DIST = S30samba-set.sh S31ganesha-set.sh
+EXTRA_DIST = S30samba-set.sh S31ganesha-set.sh S32gluster_enable_shared_storage.sh
diff --git a/extras/hook-scripts/set/post/S32gluster_enable_shared_storage.sh b/extras/hook-scripts/set/post/S32gluster_enable_shared_storage.sh
new file mode 100755
index 00000000000..28fa0e53316
--- /dev/null
+++ b/extras/hook-scripts/set/post/S32gluster_enable_shared_storage.sh
@@ -0,0 +1,124 @@
+#!/bin/bash
+
+key=`echo $3 | cut -d '=' -f 1`
+val=`echo $3 | cut -d '=' -f 2`
+if [ "$key" != "cluster.enable-shared-storage" ]; then
+    exit;
+fi
+if [ "$val" != 'enable' ]; then
+    if [ "$val" != 'disable' ]; then
+        exit;
+    fi
+fi
+
+option=$val
+
+key_val_pair1=`echo $4 | cut -d ',' -f 1`
+key_val_pair2=`echo $4 | cut -d ',' -f 2`
+
+key=`echo $key_val_pair1 | cut -d '=' -f 1`
+val=`echo $key_val_pair1 | cut -d '=' -f 2`
+if [ "$key" != "is_originator" ]; then
+    exit;
+fi
+is_originator=$val;
+
+key=`echo $key_val_pair2 | cut -d '=' -f 1`
+val=`echo $key_val_pair2 | cut -d '=' -f 2`
+if [ "$key" != "local_node_hostname" ]; then
+    exit;
+fi
+local_node_hostname=$val;
+
+# Read gluster peer status to find the peers
+# which are in 'Peer in Cluster' mode and
+# are connected.
+
+number_of_connected_peers=0
+while read -r line
+do
+    # Already got two connected peers. Including the current node
+    # we have 3 peers which is enough to create a shared storage
+    # with replica 3
+    if [ "$number_of_connected_peers" == "2" ]; then
+        break;
+    fi
+
+    key=`echo $line | cut -d ':' -f 1`
+    if [ "$key" == "Hostname" ]; then
+        hostname=`echo $line | cut -d ':' -f 2 | xargs`
+    fi
+
+    if [ "$key" == "State" ]; then
+        peer_state=`echo $line | cut -d ':' -f 2 | cut -d '(' -f 1 | xargs`
+        conn_state=`echo $line | cut -d '(' -f 2 | cut -d ')' -f 1 | xargs`
+
+        if [ "$peer_state" == "Peer in Cluster" ]; then
+            if [ "$conn_state" == "Connected" ]; then
+                ((number_of_connected_peers++))
+                connected_peer[$number_of_connected_peers]=$hostname
+            fi
+        fi
+    fi
+
+done < <(gluster peer status)
+
+# Include current node in connected peer list
+((number_of_connected_peers++))
+connected_peer[$number_of_connected_peers]=$local_node_hostname
+
+# forming the create vol command
+create_cmd="gluster --mode=script --wignore volume create \
+            gluster_shared_storage replica $number_of_connected_peers"
+
+# Adding the brick names in the command
+for i in "${connected_peer[@]}"
+do
+    create_cmd=$create_cmd" "$i:/var/run/gluster/ss_brick
+done
+
+if [ "$option" == "disable" ]; then
+    # Unmount the volume on all the nodes
+    umount /var/run/gluster/shared_storage
+fi
+
+if [ "$is_originator" == 1 ]; then
+    if [ "$option" == "enable" ]; then
+        # Create and start the volume
+        $create_cmd
+        gluster --mode=script --wignore volume start gluster_shared_storage
+    fi
+
+    if [ "$option" == "disable" ]; then
+        # Stop and delete the volume
+        gluster --mode=script --wignore volume stop gluster_shared_storage
+        gluster --mode=script --wignore volume delete gluster_shared_storage
+    fi
+fi
+
+function check_volume_status()
+{
+    status=`gluster volume info gluster_shared_storage  | grep Status | cut -d ':' -f 2 | xargs`
+    echo $status
+}
+
+mount_cmd="mount -t glusterfs "$local_node_hostname":/gluster_shared_storage \
+           /var/run/gluster/shared_storage"
+
+if [ "$option" == "enable" ]; then
+    retry=0;
+    # Wait for volume to start before mounting
+    status=$(check_volume_status)
+    while [ "$status" != "Started" ]; do
+        sleep 5;
+        ((retry++))
+        if [ "$retry" == 3 ]; then
+            break;
+        fi
+        status = check_volume_status;
+    done
+    # Mount the volume on all the nodes
+    umount /var/run/gluster/shared_storage
+    mkdir -p /var/run/gluster/shared_storage
+    $mount_cmd
+fi