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site for downloading the latest code, asking for help, and filing bugs.
The latest and most in-depth documentation on how to use Quantum is
available at: http://docs.openstack.org/incubation . This includes
both an "Administrator Guide" and the official "API Reference".
available at: http://docs.openstack.org . This includes:
Quantum Administrator Guide
Quantum API Reference:
The start of some developer documentation is available at:
For help using or hacking on Quantum, you can send mail to
############ For Users Installing and Running Quantum #########
# -- Dependencies
When running from source, view the tools/pip-requires file to see the
python packages are required to run quantum. These can be
installed using pip:
1) Install easy_install (there is probably a distribution specific package for
2) Install pip:
$ easy_install pip==dev
3) Install packages with pip:
$ pip install <package name>
# -- Installing from the source code
You have 3 options:
a) sudo python setup.py install
# Installs to /usr/lib, /usr/bin, /etc, etc
b) python setup.py install --user
# Install into $HOME/.local/...
c) python setup.py install --venv
# Creates and installs into a virtual-env at ~/.quantum-venv
# -- Configuration Files
Quantum has two primary configuration files: plugins.ini and quantum.conf .
Both are located in the same directory, which is server/etc when running
from source, and /etc when fully installed.
# -- Configuring Quantum plug-in
1) Identify your desired plug-in. Choose a plugin from one of the options in
the "plugins" directory, or one provided by a third-party.
2) Edit the plugins.ini file to point to the location of the Quantum plug-in
library. It should specify the class path to the plugin and the
class name (i.e. for a plugin class FooPlugin in
provider would be: quantum.plugins.foo.foo_plugin.FooPlugin)
3) Read the plugin specific README, this is usually found in the same
directory as your Quantum plug-in, and follow configuration instructions.
# -- Launching the Quantum Service
# If you're running from the source
# If you installed Quantum
# -- Making requests against the Quantum Service
Quantum comes with a programmatic CLI that is driven by the Quantum Web
Service. You can use the CLI by issuing the following command:
# If you're running from the source
# If you installed Quantum
This will show help all of the available commands.
An example CLI command looks like this:
$ quantum -v create_net t1 network1
Created a new Virtual Network with ID:e754e7c0-a8eb-40e5-861a-b182d30c3441
# -- Keystone Authentication and Authorization
Requests to the Quantum API can be authenticated with the Keystone
identity service using a token-based authentication protocol. Keystone
integration is disabled by default.
1) Enabling Authentication and Authorization
The Keystone identity service is a requirement. It must be installed, although
not necessarily on the same machine where Quantum is running; both Keystone's
admin API and service API should be running
Authentication and Authorization middleware should be enabled in the Quantum
pipeline. To this aim, uncomment the following line in quantum.conf:
pipeline = authN authZ extensions quantumapiapp
The final step concerns configuring access to Keystone. The following attributes
must be specified in the [filter:authN] section of quantum.conf:
auth_host IP address or host name of the server where Keystone is running
auth_port Port where the Keystone Admin API is listening
auth_protocol Protocol used for communicating with Keystone (http/https)
auth_version Keystone API version (default: 2.0)
auth_admin_token Keystone token for administrative access
auth_admin_user Keystone user with administrative rights
auth_admin_password Password for the user specified with auth_admin_user
NOTE: aut_admin_token and auth_admin_user/password are exclusive.
If both are specified, auth_admin_token has priority.
2) Authenticating and Authorizing request for Quantum API
A user should first authenticate with Keystone, supplying user credentials;
the Keystone service will return an authentication token, together with
information concerning token expirations and endpoint where that token can
The authentication token must be included in every request for the Quantum
API, in the 'X_AUTH_TOKEN' header. Quantum will look for the authentication
token in this header, and validate it with the Keystone service.
In order to validate authentication tokens, Quantum uses Keystone's
administrative API. It therefore requires credentials for an administrative
user, which can be specified in Quantum's configuration file (quantum.conf)
Either username and password, or an authentication token for an administrative
user can be specified in the configuration file:
auth_admin_user = admin
auth_admin_password = secrete
- Admin token:
auth_admin_token = 9a82c95a-99e9-4c3a-b5ee-199f6ba7ff04
As of the current release, any user for a tenant is allowed to perform
every operation on the networks owned by the tenant itself, except for
plugging interfaces. In order to perform such operation, the user must have
the Quantum:NetworkAdmin roles. Roles can be configured in Keystone using
the administrative API.
###### For Developers #########
# -- Code Layout
The Quantum project includes 3 core packages:
quantum-common (General utils for Quantum and its plugins)
quantum-server (The actual Quantum service itself)
quantum-client (The Quantum CLI and API Python library)
As well as some plugins.
# -- Writing your own Quantum plug-in
If you wish the write your own Quantum plugin, please refer to some concrete as
well as sample plugins available in the "plugins" directory.
There are a few requirements to writing your own plugin:
1) Your plugin should implement all methods defined in the
QuantumPluginBase class defined in
2) Copy your Quantum plug-in over to the "plugins" directory
3) The next step is to edit plugins.ini and specify the
location of your custom plugin as the "provider"
4) Launch the Quantum Service, and your plug-in is configured and ready to
manage a Cloud Networking Fabric.
# -- Running the tests from source code
# -- Extensions
1) Creating Extensions:
a) Extension files should be placed in the extensions folder located at
b) The extension file should have a class with the same name as the filename.
This class should implement the contract required by the extension framework.
See ExtensionDescriptor class in common/lib/quantum/common/extensions.py
c) To stop a file in the extensions folder from being loaded as an extension,
the filename should start with an "_"
For an example of an extension file look at Foxinsocks class in
The unit tests in server/lib/tests/unit/test_extensions.py document all
the ways in which you can use extensions
2) Associating plugins with extensions:
a) A Plugin can advertize all the extensions it supports through the
'supported_extension_aliases' attribute. Eg:
supported_extension_aliases = ['extension1_alias',
Any extension not in this list will not be loaded for the plugin
b) Extension Interfaces for plugins (optional)
The extension can mandate an interface that plugins have to support with the
'get_plugin_interface' method in the extension.
For an example see the FoxInSocksPluginInterface in foxinsocks.py.
The QuantumEchoPlugin lists foxinsox in its supported_extension_aliases
and implements the method from FoxInSocksPluginInterface.
# -- Building packages
python setup.py build rpm
python setup.py build deb