cinder client

Change-Id: I10cf4eaee94154a4acdcf6931d19cbabd3fc1b04
diff --git a/README.rst b/README.rst
index 5bc4018..7a19ad0 100644
--- a/README.rst
+++ b/README.rst
@@ -581,6 +581,31 @@
 The storage availability zone is the actual zone where the node belongs to. Make sure to specify this per node.
 Check the documentation of OpenStack for more information
 
+
+Client role
+
+.. code-block:: yaml
+
+    cinder:
+      client:
+        enabled: true
+        identity:
+          host: 127.0.0.1
+          port: 35357
+          project: service
+          user: cinder
+          password: pwd
+          protocol: http
+          endpoint_type: internalURL
+          region_name: RegionOne
+        backend:
+          ceph:
+            type_name: standard-iops
+            engine: ceph
+            key:
+              conn_speed: fibre-10G
+
+
 Documentation and Bugs
 ============================