Overview

The billing server stores state information for miscellaneous resources (instances, volumes, images, etc.) in a database and generates reports accessed by REST API.

Configuration

By default, the billing Heart server uses /var/lib/nova/nova_billing.sqlite database and listens port 8787. That can be changed in /etc/nova-billing/settings.json.

RPM Building

Clone the nova-billing git repository, rename the top dir to nova-billing-2.0.0, and tar it to nova-billing-2.0.0.tar.gz. Place it to rpmbuild/SOURCES directory and run:

$ rpmbuild -ba nova-billing.spec

Quickstart

Install the package:

# yum install nova-billing

Start the servers:

# /etc/init.d/nova-billing-heart start
# /etc/init.d/nova-billing-os-amqp start

Integrate Nova Billing Glance middleware with Glance. Append these lines to your /etc/glance/glance-api.conf:

[filter:billing]
paste.filter_factory = nova_billing.os_glance:GlanceBillingFilter.factory

and mention this filter in glance-api pipeline:

[pipeline:glance-api]
pipeline = versionnegotiation authtoken auth-context billing apiv1app

Restart glance-api:

# /etc/init.d/glance-api restart

Try to run or terminate an instance or create or remove a glance image. Then you can check that the daemon returns reports (replace 999888777666 with a valid Admin's token):

$ curl http://localhost:8787/bill -H "X-Auth-Token: 999888777666" | python -mjson.tool

Its output should look like this:

{
    "bill": [
        {
            "id": 1, 
            "name": "1", 
            "resources": [
                {
                    "cost": 0.0, 
                    "created_at": "2012-01-19T17:37:24.024440Z", 
                    "destroyed_at": null, 
                    "id": 46, 
                    "name": null, 
                    "parent_id": 45, 
                    "rtype": "local_gb"
                }, 
                {
                    "cost": 8434.1570370370373, 
                    "created_at": "2012-01-19T17:37:24.024440Z", 
                    "destroyed_at": null, 
                    "id": 47, 
                    "name": null, 
                    "parent_id": 45, 
                    "rtype": "memory_mb"
                }, 
                {
                    "cost": 16.472962962962963, 
                    "created_at": "2012-01-19T17:37:24.024440Z", 
                    "destroyed_at": null, 
                    "id": 48, 
                    "name": null, 
                    "parent_id": 45, 
                    "rtype": "vcpus"
                }, 
                {
                    "cost": 0.0, 
                    "created_at": "2012-01-19T17:37:24.024440Z", 
                    "destroyed_at": null, 
                    "id": 45, 
                    "name": "12", 
                    "parent_id": null, 
                    "rtype": "nova/instance"
                },  
                {
                    "cost": 72559316.557037041, 
                    "created_at": "2012-01-19T16:23:20.293482Z", 
                    "destroyed_at": null, 
                    "id": 75, 
                    "name": "22", 
                    "parent_id": null, 
                    "rtype": "glance/image"
                }
            ]
        }
    ], 
    "period_end": "2012-05-01T00:00:00Z", 
    "period_start": "2012-04-01T00:00:00Z"
}