Connection Interface¶

A Connection instance maintains your cloud config, session and authentication information providing you with a set of higher-level interfaces to work with OpenStack services.

Once you have a Connection instance, services are accessed through instances of Proxy or subclasses of it that exist as attributes on the Connection.

Service Proxies¶

The following service proxies exist on the Connection. The service proxies are all always present on the Connection object, but the combination of your CloudRegion and the catalog of the cloud in question control which services can be used.

Resource Interface¶

The Resource layer is a lower-level interface to communicate with OpenStack services. While the classes exposed by the Connection build a convenience layer on top of this, Resources can be used directly. However, the most common usage of this layer is in receiving an object from a class in the Connection layer, modifying it, and sending it back into the Connection layer, such as to update a resource on the server.

The following services have exposed Resource classes.

Low-Level Classes¶

The following classes are not commonly used by application developers, but are used to construct applications to talk to OpenStack APIs. Typically these parts are managed through the Connection Interface, but their use can be customized.