| Hub |
Management plane host (K3s + OCM + DCM + Harbor + console) |
| Spoke / workload cluster |
Independent K3s server registered to OCM |
| Site |
FleetSite logical datacenter |
| FCJ |
FleetClusterJoin greenfield cluster object |
| Overlay |
WireGuard mesh used for hub↔spoke management traffic |
| ManifestWork |
OCM object delivering manifests to a spoke |
| DCM |
Catalog / policy / placement control plane |
| SP / SPRM |
Service provider / service provider resource manager |
| FleetAppRoute |
Edge route CR for a catalog instance hostname |
| Management site |
Seeded site representing the hub — no workload clusters |
| Registry site |
Operator-created site for attaching clusters |