TripleO/TuskarGlossary

Overview

Tuskar is built with Triple-O in mind; as such, it may be useful to familiarize yourself with the Triple-O architecture.

Overcloud Role

One way an Overcloud can be configured is by specifying the scale of the services that will run once it is deployed (e.g., 3 Controller instances and 2 Compute instances). These services are specified by Roles:

• Controller - provides all services other than compute and storage services
• Compute - defines and provides compute services
• Object Storage - defines and provides object storage services
• Block Storage - defines and provides block storage service

On a functional level, an Overcloud Role points to an image in Glance that will be used by Heat for provisioning.

Node

A Node is a single physical compute unit. It corresponds to a compute Node in Nova Baremetal or Ironic.

In Tuskar, a Node can either be:

• Deployed' - a Heat Resource is running on the Node
• Free - available for use