Description of problem:
Chapter 1.5.2 of the Architecture guide shows a diagram describing the ceilometer architecture, but is missing important changes (aodh, panko).
Version-Release number of selected component (if applicable):
OpenStack Platform 9 (Mitaka) and later
Steps to Reproduce:
1. See: https://access.redhat.com/documentation/en/red-hat-openstack-platform/9/paged/architecture-guide/chapter-1-components#comp-telemetry
Should be similar to this one: http://docs.openstack.org/developer/ceilometer/architecture.html
Moving back to 'NEW' and the default assignee for rescoping.
Changing the scope of this BZ to a whole guide review, and moving version to 14 for consideration as part of that program.