Add gluster configuration for Gnocchi

File backend storage for Gnocchi requires
shared FS to extend gnocchi storage over nodes.

Change-Id: I8f947bf73a84ddee77c1f5bcad80f4cd4b1306f7
Related-Prod: https://mirantis.jira.com/browse/PROD-17192
diff --git a/glusterfs/server/volume/gnocchi.yml b/glusterfs/server/volume/gnocchi.yml
new file mode 100644
index 0000000..f8f5b6a
--- /dev/null
+++ b/glusterfs/server/volume/gnocchi.yml
@@ -0,0 +1,18 @@
+parameters:
+  glusterfs:
+    server:
+      volumes:
+        gnocchi:
+          storage: /srv/glusterfs/gnocchi
+          replica: 3
+          bricks:
+            - ${_param:cluster_node01_address}:/srv/glusterfs/gnocchi
+            - ${_param:cluster_node02_address}:/srv/glusterfs/gnocchi
+            - ${_param:cluster_node03_address}:/srv/glusterfs/gnocchi
+          options:
+            cluster.readdir-optimize: On
+            nfs.disable: On
+            network.remote-dio: On
+            diagnostics.client-log-level: WARNING
+            diagnostics.brick-log-level: WARNING
+            cluster.favorite-child-policy: mtime