Install the Compute agent for Telemetry

Telemetry provides an API service that provides a collector and a range of disparate agents. This procedure details how to install the agent that runs on the compute node.

1. Install the Telemetry service on the compute node:

   # apt-get install ceilometer-agent-compute

2. Edit the /etc/nova/nova.conf file and add the following lines to the [DEFAULT] section:

   [DEFAULT]
   ...
   instance_usage_audit = True
   instance_usage_audit_period = hour
   notify_on_state_change = vm_and_task_state
   notification_driver = nova.openstack.common.notifier.rpc_notifier
   notification_driver = ceilometer.compute.nova_notifier

3. Restart the Compute service:

   # service nova-compute restart

4. You must set the secret key that you defined previously. The Telemetry service nodes share this key as a shared secret:

   Edit the /etc/ceilometer/ceilometer.conf file and change these lines in the [publisher] section. Replace CEILOMETER_TOKEN with the ceilometer token that you created previously:

   [publisher]
   # Secret value for signing metering messages (string value)
   metering_secret = CEILOMETER_TOKEN

5. Add the Identity service credentials:

   Edit the /etc/ceilometer/ceilometer.conf file and change the [keystone_authtoken] section:

   [keystone_authtoken]
   auth_host = controller
   auth_port = 35357
   auth_protocol = http
   admin_tenant_name = service
   admin_user = ceilometer
   admin_password = CEILOMETER_PASS

   Also set the [service_credentials] section:

   [service_credentials]
   os_auth_url = http://controller:5000/v2.0
   os_username = ceilometer
   os_tenant_name = service
   os_password = CEILOMETER_PASS

6. Restart the service with its new settings:

   # service ceilometer-agent-compute restart