Adding retry to the ceilometer_cpu metric task (#185)

* Adding retry to the ceilometer_cpu metric task

There is not enough time for that metric to be scraped.
We should add a retry to the task.
Worst case scenario the  metric can take 2 minutes to appear.

Co-authored-by: Emma Foley <[email protected]>

Author: lnatapov

roles/telemetry_autoscaling/tasks/creating_stack.yml

@@ -72,7 +72,9 @@
     # source ~/overcloudrc;
     {{ openstack_cmd }} metric list
   register: result
-  failed_when: '"ceilometer_cpu" not in result.stdout'
+  retries: 12
+  delay: 10
+  until: '"ceilometer_cpu" in result.stdout'
 
 - name: Print the result
   ansible.builtin.debug: