Hello. The task I'm trying to implement is gather provisioning metrics from OpenStack VMs using Ceilometer. Precisely, I need to provide time of execution for the provisioning tasks *scheduling, **spawning, networking *via Ceilometer.
After reading Ceilometer and Nova documentation I figured out that Nova could already provide the needed events with the following configuration: notification_driver = nova.openstack.common.notifier.rabbit_notifier,ceilometer.compute.nova_notifier notify_on_state_change = vm_and_task_state This should make Nova generate corresponding events with compute.instance.update event type. So I guess there is no need to implement pollster plugin in this case, but listener plugin still needs to be implemented. From what I understand, it should be implemented in ceilometer/compute/notifications.py to process events that Nova sends to RabbitMQ. I've tried to do so similarly to already existing plugins in notifications.py and added it as an entry point in setup.cfg (ceilometer.collector section) but couldn't see any changes after reinstalling and restarting Ceilometer services. Could you please help on how the listener plugin is supposed to be created? There are good chances I have some misunderstandings in the concept of Ceilometer plugins. Thank you! -- Sincerely, Ruslan Kiianchuk.
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