PaaS Event Format for Ceilometer Collection

The general mechanism for setting up Ceilometer collection for a new service has been to either create a targeted agent or use the existing service APIs to meter these systems. While this approach has worked for the existing set of services, it will run into a several problems as the number of PaaS and SaaS services that need to be metered expand. This blueprint provides a proposal for standardizing the format of integrations so that Ceilometer can consume metering data from any conforming application without doing any custom integration or even a code change.