Telemetry uses a combination of notifications and an agent to collect Compute meters. Perform these steps on each compute node.
Install the packages:
# yum install openstack-ceilometer-compute
Edit the /etc/ceilometer/ceilometer.conf file and complete the following actions:
In the [DEFAULT] section, configure RabbitMQ message queue access:
[DEFAULT]
...
transport_url = rabbit://openstack:RABBIT_PASS@controller
Replace RABBIT_PASS with the password you chose for the openstack account in RabbitMQ.
In the [service_credentials] section, configure service credentials:
[service_credentials]
...
auth_url = http://controller:5000
project_domain_id = default
user_domain_id = default
auth_type = password
username = ceilometer
project_name = service
password = CEILOMETER_PASS
interface = internalURL
region_name = RegionOne
Replace CEILOMETER_PASS with the password you chose for the ceilometer user in the Identity service.
Edit the /etc/nova/nova.conf file and configure notifications in the [DEFAULT] section:
[DEFAULT]
...
instance_usage_audit = True
instance_usage_audit_period = hour
notify_on_state_change = vm_and_task_state
[oslo_messaging_notifications]
...
driver = messagingv2
Start the agent and configure it to start when the system boots:
# systemctl enable openstack-ceilometer-compute.service
# systemctl start openstack-ceilometer-compute.service
Restart the Compute service:
# systemctl restart openstack-nova-compute.service
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