Bilean

Overview

The mission for Bilean project is to provide a generic billing service for an OpenStack cloud, it implements trigger-type billing based on other OpenStack services' notification.

Features

The primary features of the Bilean service are listed below:

• Trigger-type billing: listens on AMQP and do bill when user has resource changes.
• Seconds-level billing: provides user high-accuracy and real-time balance.
• Plugin-based object rule management enabling the creation and management for any chargeable resources.
• Flexible policy management: a policy consists of several rules and enable to add/remove rule.

High-Level Architecture

An overall summary of Bilean logical architecture.

The main components of Bilean are:

• The bileanclient component is A CLI communicates with the bilean-api.
• The bilean-api component provides an OpenStack-native ReST API that processes API requests by sending them to the bilean-engine over RPC.
• The bilean-scheduler component manages all the jobs related to users and scheduler jobs to bilean-engine over RPC, a job is a timing task related to a user(Notify user to recharge .e.g.).
• The bilean-notification component monitors the message bus for data provided by other OpenStack components such as Nova, then converts notifications into billing resources and sends to bilean-engine over AMQP.
• The bilean-engine does the main billing work, operates all users, rules and policies.

Resources

• Projects on Launchpad

 - Bilean: https://launchpad.net/bilean
 - BileanClient: https://launchpad.net/python-bileanclient

• Code Repositories

 - Bilean: https://git.openstack.org/openstack/bilean
 - BileanClient: https://git.openstack.org/openstack/python-bileanclient

• Bug Tracking

 - Bilean: https://bugs.launchpad.net/bilean
 - BileanClient: https://bugs.launchpad.net/python-bileanclient

• Blueprints

 - https://blueprints.launchpad.net/bilean

• IRC channel

 - #openstack-bilean at FreeNode

• Mailing list (prefix subjects with [Bilean] for faster responses)

 - http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev