Hi Kevin, A couple of quick questions:
- As you get the tenant id from the context I assume this module has to come after the authentication in the pipeline. Have you thought about using the tenant_id in the URL instead ? (I'm thinking of the case where you want rate limit requests into the authentication system as well as Nova itself). - Does this work for EC2 as well as OSAPI ? Cheers, Phil -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Kevin L. Mitchell Sent: 16 March 2012 21:45 To: [email protected] Subject: [Openstack] Distributed rate-limiting Howdy, folks. I've been working on a replacement for nova's rate-limiting middleware that will handle the multiple-node case, and I've developed a fairly generic rate-limiting package, along with a second package that adapts it to nova. (This means you could also use this rate-limiting setup with, say, glance, or with any other project that uses Python middleware.) Here is some information: * Turnstile Turnstile is a piece of WSGI middleware that performs true distributed rate-limiting. System administrators can run an API on multiple nodes, then place this middleware in the pipeline prior to the application. Turnstile uses a Redis database to track the rate at which users are hitting the API, and can then apply configured rate limits, even if each request was made against a different API node. - https://github.com/klmitch/turnstile - http://pypi.python.org/pypi/turnstile * nova_limits This package provides the ``nova_limits`` Python module, which contains the ``nova_preprocess()`` preprocessor, the ``NovaClassLimit`` limit class, and the ``NovaTurnstileMiddleware`` replacement middleware class, all for use with Turnstile. These pieces work together to provide class-based rate limiting integration with nova. - https://github.com/klmitch/nova_limits - http://pypi.python.org/pypi/nova_limits Both packages should be fairly well documented (start with README.rst), and please feel free to log issues or make pull requests. -- Kevin L. Mitchell <[email protected]> _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : [email protected] Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : [email protected] Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
