OpenStack Plug-Ins are software components that extend the functionality of the OpenStack cloud computing platform. Plug-Ins can be used to add new services, customize existing services, or integrate OpenStack with other technologies and systems.

OpenStack is an open-source cloud computing platform that provides a set of core services for building and managing public and private cloud infrastructure. The core services include Compute (Nova), Networking (Neutron), Storage (Cinder), Identity (Keystone), and Image (Glance).