Experimental Feature: ClusterClass (alpha)

The ClusterClass feature introduces a new way to create clusters which reduces boilerplate and enables flexible and powerful customization of clusters. ClusterClass is a powerful abstraction implemented on top of existing interfaces and offers a set of tools and operations to streamline cluster lifecycle management while maintaining the same underlying API.

Feature gate name: ClusterTopology

Variable name to enable/disable the feature gate: CLUSTER_TOPOLOGY

Additional documentation:

• Background information: ClusterClass and Managed Topologies CAEP
• For ClusterClass authors:
  • Writing a ClusterClass
  • Changing a ClusterClass
  • Publishing a ClusterClass for clusterctl usage: clusterctl Provider contract
• For Cluster operators:
  • Creating a Cluster: Quick Start guide Please note that the experience for creating a Cluster using ClusterClass is very similar to the one for creating a standalone Cluster. Infrastructure providers supporting ClusterClass provide Cluster templates leveraging this feature (e.g the Docker infrastructure provider has a development-topology template).
  • Operating a managed Cluster
  • Planning topology rollouts: clusterctl alpha topology plan