Picasso aims to provide an OpenStack API for Functions as a service, abstracting away the infrastructure layer while enabling simplicity, efficiency and scalability for both developers and operators.

The Picasso API server uses Keystone authentication and authorization through its middleware.

Picasso can be used to trigger functions from OpenStack services, such as Telemetry (via HTTP callback) or Swift. This means no long running applications, as functions are only executed when called.

Code: https://github.com/openstack/picasso