Do not log passwords

This prevents data to be leaked into the callback plugin.

Change-Id: I9d6d1abf574fc127cad59e3e757db0c9f3b7709f

tasks/ceilometer_service_setup.yml

@@ -28,6 +28,7 @@
   until: add_service|success
   retries: 5
   delay: 2
+  no_log: True
 
 - name: Ensure ceilometer user
   keystone:
@@ -46,6 +47,7 @@
   until: add_service|success
   retries: 5
   delay: 10
+  no_log: True
 
 - name: Ensure ceilometer user to admin role
   keystone:
@@ -62,4 +64,5 @@
   when: not ceilometer_service_in_ldap | bool
   until: add_admin_role|success
   retries: 5
-  delay: 10
+  delay: 10
+  no_log: True