Enable Compute service meters for Red Hat Enterprise Linux and CentOS¶

Install and configure components¶

1. Install the packages:

   # yum install openstack-ceilometer-compute
   

2. Edit the /etc/ceilometer/ceilometer.conf file and complete the following actions:

   • In the [DEFAULT] and [oslo_messaging_rabbit] sections, configure RabbitMQ message queue access:

     [DEFAULT]
     ...
     rpc_backend = rabbit
     
     [oslo_messaging_rabbit]
     ...
     rabbit_host = controller
     rabbit_userid = openstack
     rabbit_password = RABBIT_PASS
     

     Replace RABBIT_PASS with the password you chose for the openstack account in RabbitMQ.

   • In the [DEFAULT] and [keystone_authtoken] sections, configure Identity service access:

     [DEFAULT]
     ...
     auth_strategy = keystone
     
     [keystone_authtoken]
     ...
     auth_uri = http://controller:5000
     auth_url = http://controller:35357
     memcached_servers = controller:11211
     auth_type = password
     project_domain_name = default
     user_domain_name = default
     project_name = service
     username = ceilometer
     password = CEILOMETER_PASS
     

     Replace CEILOMETER_PASS with the password you chose for the Telemetry service database.

   • 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.

Configure Compute to use Telemetry¶

• 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
  

Finalize installation¶

1. Start the agent and configure it to start when the system boots:

   # systemctl enable openstack-ceilometer-compute.service
   # systemctl start openstack-ceilometer-compute.service
   

2. Restart the Compute service:

   # systemctl restart openstack-nova-compute.service