Magnum

Magnum lets you create clusters via the OpenStack APIs. To do that, you base your configuration on a Cluster Template. The template defines parameters describing how the cluster will be constructed, such as worker flavors. In each region, we offer predefined public Cluster Templates with ready-to-use configurations. To learn more about Cluster Templates, check out the Magnum documentation.

Once you have chosen your Cluster Template, you move on to create a cluster based on that template. When you create the cluster, you can define the number of nodes in your cluster, ask for multiple master nodes with a load balancer in front, etc.