Cloudkitty

Cloudkitty charm - Openstack Rating as a Service

Overview

This charm provides a way to deploy Cloudkitty - Openstack Rating as a Service module - in Openstack

What is CloudKitty ?

CloudKitty is a generic solution for the chargeback and rating of a cloud. Provides a metric-based rating for cloud administrators allowing them to create rating rules to the collected data.

CloudKitty usage

With Cloudkitty, it is possible to:

• Collect metrics from OpenStack (through Gnocchi).
• Apply rating rules to the previous metrics.
• Retrieve the rated information, grouped by scope and/or by metric type.

However, it is not possible to:

• Limit resources in other OpenStack services.
• Add taxes, convert between currencies, etc...

CloudKitty associates a price to a metric for a given period, the price is mapped according to end-user needs.

Configuration

Cloudkitty charm configuration options

• debug
  to run service in debug mode change debug config value

  juju config cloudkitty debug=true
  

• region
  set the openstack cloud region, if value required to be changed preferably to specify in a bundle

  cloudkitty:
      charm: ch:cloudkity
      options:
          region: MyRegion
  

To display all configuration option information run juju config cloudkitty. If the application is not deployed then see the charm's configuration file.

Deployment

Deploy cloudkitty charm

juju deploy cloudkitty --channel edge

Or in a bundle

applications:
  cloudkitty:
    charm: ch:cloudkitty
    channel: edge
    num_units: 1
    series: jammy

Relations

Cloudkitty charm supports the following relations.

MySQL relation - relation to mysql-operator charm - provides database storage for the cloudkitty service.

NOTE: This charm is not backward compatible with legacy mysql-innodb-cluster charm

juju deploy mysql --channel edge
juju relate cloudkitty mysql

Keystone relation - provides identity management.

juju deploy keystone
juju relate cloudkitty keystone

Gnocchi relation - provides metrics collector service.

juju deploy gnocchi
juju relate cloudkitty gnocchi

RabbitMQ relation - provides messages queue service.

juju deploy rabbitmq-server
juju relate cloudkitty rabbitmq-server

Actions

This section lists Juju actions supported by the charm. Actions allow specific operations to be performed on a per-unit basis.

• restart-services
  restarts cloudkitty-{api,processor} services in the unit.

  juju run-action --wait cloudkitty/leader restart-services
  

Usage

To interact with the service we should use the built-in openstack cloudkitty client in the openstackclients package

Check clients usage like this

openstack rating --help

First enable hashmap module

$ openstack rating module enable hashmap

Then start by creating a service called image for example

$ openstack rating hashmap service create image

Create a field called flavor_id as an example, and associate it with the service using the service ID

$ openstack rating hashmap field create <SERVICE_ID> flavor_id

Map the field with a value of the specific field, a flavor id

$ openstack flavor list
+---------+-----------+-------+------+-----------+-------+-----------+
| ID      | Name      |   RAM | Disk | Ephemeral | VCPUs | Is Public |
+---------+-----------+-------+------+-----------+-------+-----------+
| 123abc  | m1.tiny   |   512 |    8 |        40 |     1 | True      |
+---------+-----------+-------+------+-----------+-------+-----------+

Create the mapping of type flat and let's assign a cost of 1.2

$ openstack rating hashmap mapping create --type flat --field-id <FIELD_ID> --value 123abc 1.2

Finally check the summary report

$ openstack rating summary get

TO-DO

This charm is under development not yet stable, the following list provides pending features

• Enable TLS support using [TLS interface]

• InfluxDB relation required for storage v2

• Cloudkitty dashboard charm relation

• High availability

Contributing

Please see the Juju SDK docs for guidelines on enhancements to this charm following best practice guidelines, and CONTRIBUTING.md for developer guidance.

Follow Openstack best practices for Software contributions in charm development.

Bugs

Please report bugs on Launchpad.

For general charm questions refer to the OpenStack Charm Guide.