Chapter 12. Install the Telemetry Service

The Telemetry service is composed of an API service, three openstack-ceilometer agents, and two alarm services. The API service (provided by the openstack-ceilometer-api package) runs on one or more central management servers to provide access to the Telemetry database.

The three Telemetry agents (and their respective packages) are listed below:

The two alarm services (and their respective packages) that comprise the rest of the Telemetry service are listed below:

You must configure the following settings for each of the components:

The authentication settings and database connection string for these components are all configured in /etc/ceilometer/ceilometer.conf. As such, components deployed on the same host will share the same settings. If Telemetry components are deployed on multiple hosts, you must replicate any authentication changes to these hosts by copying the ceilometer.conf file to each host after applying the new settings.

Once the Telemetry service (all of its components, wherever each is hosted) is deployed and configured, you must configure each monitored service (Image, Networking, Object Storage, Block Storage, and each Compute node) to submit data to the Telemetry service. The related settings are configured in each service's configuration file.