nova/doc/source/api_ext/ext_floating_ips.rst

About The Floating IPs Extension

The Floating IPs extension enables assigning and allocation of floating IP addresses to instances running in an OpenStack cloud. It is used with the OpenStack Compute 1.1 API to add or remove floating IP addresses on named instances.

To obtain current information the extensions available to you, issue an EXTENSION query on the OpenStack system where it is installed, such as http://mycloud.com/v1.1/tenant/extension.

Floating IPs Extension Overview

Name

Floating IPs

Namespace

http://docs.openstack.org/ext/floating_ips/api/v1.1

Alias

OPS-FLO

Contact

Anthony Young <sleepsonthefloor@gmail.com>

Status

Alpha

Extension Version

v1.0 (2011-09-14)

Dependencies

Compute API 1.1

Doc Link (PDF)

http://

Doc Link (WADL)

http://

Short Description

This extension enables assigning floating IP addresses to instances.

Sample Query Responses

As shown below, responses to an EXTENSION query in XML or JSON provide basic information about the extension.

Extension Query Response: XML:

None

Extension Query Response: JSON:

{"extensions": 
[{"updated": "2011-06-16T00:00:00+00:00", 
"name": "Floating_ips", 
"links": [], 
"namespace": "http://docs.openstack.org/ext/floating_ips/api/v1.1", 
"alias": "os-floating-ips", 
"description": "Floating IPs support"}]}

Document Change History

Revision Date	Summary of Changes
2011-09-14	Initial draft

Summary of Changes

This extension to the Compute API enables support for floating IP addresses.

To support these new actions, the extension also issues new (faults, headers, resources, states, you name it.)

New Action

This extension uses POST to add or remove floating IP addresses to instances.

Normal Response Code: 202

addFloatingIp

removeFloatingIp

Include the response codes, transitions if applicable, and XML and JSON examples.

New Faults

None

New Headers

None

New Resources

This extension provides an os-floating-ips resource extension to do the following:

List a tenant's floating ips:

GET /v1.1/tenant_id/os-floating-ips/

# Sample Response:
{ "floating_ips" : [ { "fixed_ip" : "10.0.0.3",
        "id" : 1,
        "instance_id" : 1,
        "ip" : "10.6.0.0"
      },
      { "fixed_ip" : null,
        "id" : 2,
        "instance_id" : null,
        "ip" : "10.6.0.1"
      }
    ] }

Normal Response Code: 200

Allocate a floating ip to a tenant:

POST /v1.1/tenant_id/os-floating-ips/

# Sample Response:
{ "floating_ip" : { "fixed_ip" : "10.0.0.3",
        "id" : 1,
        "instance_id" : 1,
        "ip" : "10.6.0.0"
    }}

If there are no floating ips available, 400 will be returned, with a 
message indicating that no more floating ips are available

De-allocate a floating ip from a tenant:

DELETE /v1.1/tenant_id/os-floating-ips/id

Normal Response Code: 202

Show a floating ip:

GET /v1.1/tenant_id/os-floating-ips/id

# Sample Response:
{ "floating_ip" : { "fixed_ip" : "10.0.0.3",
        "id" : 1,
        "instance_id" : 1,
        "ip" : "10.6.0.0"
    }}

Normal Response Code: 200

New States

None

Changes to the Cloud Servers Specification

List the specific changes to the API. For example:

In the List Addresses section of the Cloud Servers Specification: Examples 4.21 and 4.22 should be replaced with examples below.

Provide examples in XML and JSON