Key Concepts

See also: Concepts and Personas for detailed persona definitions (Service Provider, Consumer, Instance Admin) and Controller Architecture for detailed controller diagrams and resource dependency graphs.

graph TD
    subgraph "Management Cluster"
        HC[HostedCluster<br/><i>namespace: clusters</i>]
        NP[NodePool<br/><i>namespace: clusters</i>]

        subgraph "CP Namespace: clusters-my-cluster"
            HCP[HostedControlPlane]
            CPO[Control Plane Operator]
            ETCD[etcd]
            KAS[kube-apiserver]
            KCM[kube-controller-manager]
            SCHED[kube-scheduler]
            OAPI[openshift-apiserver]
            PKI[PKI Operator]
            IGN[Ignition Server]
        end

        HO[HyperShift Operator<br/><i>namespace: hypershift</i>]
    end

    subgraph "Guest Cluster - Data Plane"
        W1[Worker Node 1]
        W2[Worker Node 2]
        W3[Worker Node N]
    end

    HO -->|manages| HC
    HO -->|manages| NP
    HO -->|creates| HCP
    HO -->|deploys| CPO
    CPO -->|manages| ETCD
    CPO -->|manages| KAS
    CPO -->|manages| KCM
    CPO -->|manages| SCHED
    CPO -->|manages| OAPI
    CPO -->|manages| PKI
    CPO -->|manages| IGN

    KAS -.->|konnectivity tunnel| W1
    KAS -.->|konnectivity tunnel| W2
    KAS -.->|konnectivity tunnel| W3
    IGN -.->|ignition configs| W1
    IGN -.->|ignition configs| W2
    IGN -.->|ignition configs| W3

Glossary

For full persona and concept definitions, see Concepts and Personas.