Generate random keystone users

Change-Id: I8dbd07b10d29b43d1c35fa76bcaa0f0efb32beda
Related-Prod: PROD-29868
diff --git a/cinder/control/single.yml b/cinder/control/single.yml
index 31b391b..6ddbdd4 100644
--- a/cinder/control/single.yml
+++ b/cinder/control/single.yml
@@ -22,6 +22,8 @@
       # set 'image_conversion_dir' option in case of ceph deployment volume and controller running on the same node
       image_conversion_dir: ${_param:cinder_image_conversion_dir_path}
       database:
+        user: ${_param:mysql_cinder_username}
+        password: ${_param:mysql_cinder_password}
         host: ${_param:single_address}
         x509:
           enabled: ${_param:openstack_mysql_x509_enabled}
@@ -31,6 +33,8 @@
         ssl:
           enabled: ${_param:galera_ssl_enabled}
       identity:
+        user: ${_param:keystone_cinder_username}
+        password: ${_param:keystone_cinder_password}
         protocol: ${_param:internal_protocol}
         region: ${_param:openstack_region}
       service_user: