Tenks is a utility that manages virtual bare metal clusters for development and testing purposes. It offers:
Declarative definition of clusters using Ansible's familiar YAML syntax
Automated creation and deletion of virtualised bare metal nodes across any number of hypervisors
In-built management of Open vSwitch bridges for physical networks
Registration of nodes and ports with OpenStack Ironic, and creation of OpenStack Nova flavors
Simple cluster reconfiguration and tear-down
To get started with Tenks, see the documentation (linked below).