Concepts

Core concepts for understanding Butler.

Concept	Description
Management Clusters	The cluster that runs Butler and hosts tenant control planes.
Tenant Clusters	Kubernetes clusters provisioned and managed by Butler for running workloads.
Hosted Control Planes	Control planes that run as pods instead of dedicated VMs.
Infrastructure Providers	Adapters that connect Butler to Harvester, Nutanix, AWS, GCP, and Azure.
Multi-Tenancy	Team-based isolation with roles, quotas, and namespace boundaries.
Addons	Helm-based addon catalog for extending cluster functionality.
Networking and IPAM	IP address management for on-prem clusters and MetalLB integration.