Proposed title of this feature request

The request is to enhance metrics and to bugfix ceilometer in order to expose necessary metrics as listed in the linked document.

[Please describe]

What is the nature and description of the request?

There is a list of measurements that can be retrieved by ceilometer https://docs.openstack.org/ceilometer/latest/admin/telemetry-measurements.html

Compare the list with what can be retrieved with RHOSO 18 GA.

Why does the customer need this? (List the business requirements)

[Please describe]

List any affected packages or components.

[Please describe]