Concepts
Magnum has several different types of objects that form the Magnum system. In this section, we will learn about each of them in detail and also learn what they are used for in Magnum. Two important objects are the cluster and the cluster template. Here is a list of Magnum objects:
Cluster template
This was previously known as Baymodel. Cluster template is equivalent to a Nova flavor. An object stores template information about the cluster such as a keypair, image, and so on, and this is used to create new clusters consistently. Some parameters are relevant to the infrastructure of the cluster, while others are for the particular COE. Multiple cluster templates can exist for different COEs.
Note
A cluster template cannot be updated or deleted if is used by any cluster.
Cluster
This was previously known as Bay. It is a collection of node objects where work is scheduled. This node can be a VM or bare metal. Magnum deploys a cluster according to the attributes defined in the particular cluster...