kolla-ansible/doc/source/reference/rating/cloudkitty-guide.rst
Doug Szumski adb8f89a36 Remove support for deploying OpenStack Monasca
Kolla Ansible is switching to OpenSearch and is dropping support for
deploying ElasticSearch. This is because the final OSS release of
ElasticSearch has exceeded its end of life.

Monasca is affected because it uses both Logstash and ElasticSearch.
Whilst it may continue to work with OpenSearch, Logstash remains an
issue.

In the absence of any renewed interest in the project, we remove
support for deploying it. This helps to reduce the complexity
of log processing configuration in Kolla Ansible, freeing up
development time.

Change-Id: I6fc7842bcda18e417a3fd21c11e28979a470f1cf
2022-11-11 15:48:11 +00:00

2.5 KiB

CloudKitty - Rating service guide

Overview

CloudKitty is the Openstack service used to rate your platform usage. As a rating service, CloudKitty does not provide billing services such as generating a bill to send to your customers every month.

However, it provides you the building bricks you can use to build your own billing service upon internally.

Because cloudkitty is a flexible rating service, it's highly customizable while still offering a generic approach to the rating of your platform.

It lets you choose which metrics you want to rate, from which datasource and where to finally store the processed rate of those resources.

This document will explain how to use the different features available and that Kolla Ansible supports.

See the CloudKitty documentation </> for further information.

CloudKitty Collector backend

CloudKitty natively supports multiple collector backends.

By default Kolla Ansible uses the Gnocchi backend, however we also support using the following backend types:

  • prometheus - Use Prometheus metrics as dataset for cloudkitty to process.

The configuration parameter related to this option is cloudkitty_collector_backend.

To use the Prometheus collector backend:

cloudkitty_collector_backend: prometheus

CloudKitty Fetcher Backend

CloudKitty natively supports multiple fetcher backends.

By default Kolla Ansible uses the keystone backend. This can be changed using the cloudkitty_fetcher_backend option.

Kolla Ansible also supports the prometheus backend type, which is configured to discover scopes from the id label of the openstack_identity_project_info metric of OpenStack exporter.

You will need to provide extra configuration for unsupported fetchers in /etc/kolla/config/cloudkitty.conf.

Cloudkitty Storage Backend

As for collectors, CloudKitty supports multiple backend to store ratings. By default, Kolla Ansible uses the InfluxDB based backend.

Another famous alternative is Elasticsearch and can be activated in Kolla Ansible using the cloudkitty_storage_backend configuration option in your globals.yml configuration file:

cloudkitty_storage_backend: elasticsearch

You can only use one backend type at a time, selecting elasticsearch will automatically enable Elasticsearch deployment and creation of the required CloudKitty index.