clusterclass-quick-start.yaml

apiVersion: cluster.x-k8s.io/v1beta1
kind: ClusterClass
metadata:
  name: quick-start
spec:
  controlPlane:
    ref:
      apiVersion: controlplane.cluster.x-k8s.io/v1beta1
      kind: KubeadmControlPlaneTemplate
      name: quick-start-control-plane
    machineInfrastructure:
      ref:
        kind: DockerMachineTemplate
        apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
        name: quick-start-control-plane
  infrastructure:
    ref:
      apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
      kind: DockerClusterTemplate
      name: quick-start-cluster
  workers:
    machineDeployments:
    - class: default-worker
      template:
        bootstrap:
          ref:
            apiVersion: bootstrap.cluster.x-k8s.io/v1beta1
            kind: KubeadmConfigTemplate
            name: quick-start-default-worker-bootstraptemplate
        infrastructure:
          ref:
            apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
            kind: DockerMachineTemplate
            name: quick-start-default-worker-machinetemplate
    machinePools:
    - class: default-worker
      template:
        bootstrap:
          ref:
            apiVersion: bootstrap.cluster.x-k8s.io/v1beta1
            kind: KubeadmConfigTemplate
            name: quick-start-default-worker-bootstraptemplate
        infrastructure:
          ref:
            apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
            kind: DockerMachinePoolTemplate
            name: quick-start-default-worker-machinepooltemplate
  variables:
  - name: imageRepository
    required: true
    schema:
      openAPIV3Schema:
        type: string
        default: ""
        example: "registry.k8s.io"
        description: "imageRepository sets the container registry to pull images from. If empty, nothing will be set and the from of kubeadm will be used."
  - name: etcdImageTag
    required: true
    schema:
      openAPIV3Schema:
        type: string
        default: ""
        example: "3.5.3-0"
        description: "etcdImageTag sets the tag for the etcd image."
  - name: coreDNSImageTag
    required: true
    schema:
      openAPIV3Schema:
        type: string
        default: ""
        example: "v1.8.5"
        description: "coreDNSImageTag sets the tag for the coreDNS image."
  - name: podSecurityStandard
    required: false
    schema:
      openAPIV3Schema:
        type: object
        properties:
          enabled:
            type: boolean
            default: true
            description: "enabled enables the patches to enable Pod Security Standard via AdmissionConfiguration."
          enforce:
            type: string
            default: "baseline"
            description: "enforce sets the level for the enforce PodSecurityConfiguration mode. One of privileged, baseline, restricted."
          audit:
            type: string
            default: "restricted"
            description: "audit sets the level for the audit PodSecurityConfiguration mode. One of privileged, baseline, restricted."
          warn:
            type: string
            default: "restricted"
            description: "warn sets the level for the warn PodSecurityConfiguration mode. One of privileged, baseline, restricted."
  patches:
  - name: imageRepository
    description: "Sets the imageRepository used for the KubeadmControlPlane."
    enabledIf: '{{ ne .imageRepository "" }}'
    definitions:
    - selector:
        apiVersion: controlplane.cluster.x-k8s.io/v1beta1
        kind: KubeadmControlPlaneTemplate
        matchResources:
          controlPlane: true
      jsonPatches:
      - op: add
        path: "/spec/template/spec/kubeadmConfigSpec/clusterConfiguration/imageRepository"
        valueFrom:
          variable: imageRepository
  - name: etcdImageTag
    description: "Sets tag to use for the etcd image in the KubeadmControlPlane."
    definitions:
    - selector:
        apiVersion: controlplane.cluster.x-k8s.io/v1beta1
        kind: KubeadmControlPlaneTemplate
        matchResources:
          controlPlane: true
      jsonPatches:
      - op: add
        path: "/spec/template/spec/kubeadmConfigSpec/clusterConfiguration/etcd"
        valueFrom:
          template: |
            local:
              imageTag: {{ .etcdImageTag }}
  - name: coreDNSImageTag
    description: "Sets tag to use for the etcd image in the KubeadmControlPlane."
    definitions:
    - selector:
        apiVersion: controlplane.cluster.x-k8s.io/v1beta1
        kind: KubeadmControlPlaneTemplate
        matchResources:
          controlPlane: true
      jsonPatches:
      - op: add
        path: "/spec/template/spec/kubeadmConfigSpec/clusterConfiguration/dns"
        valueFrom:
          template: |
            imageTag: {{ .coreDNSImageTag }}
  - name: customImage
    description: "Sets the container image that is used for running dockerMachines for the controlPlane and default-worker machineDeployments."
    definitions:
    - selector:
        apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
        kind: DockerMachineTemplate
        matchResources:
          machineDeploymentClass:
            names:
            - default-worker
      jsonPatches:
      - op: add
        path: "/spec/template/spec/customImage"
        valueFrom:
          template: |
            kindest/node:{{ .builtin.machineDeployment.version | replace "+" "_" }}
    - selector:
        apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
        kind: DockerMachinePoolTemplate
        matchResources:
          machinePoolClass:
            names:
            - default-worker
      jsonPatches:
      - op: add
        path: "/spec/template/spec/template/customImage"
        valueFrom:
          template: |
            kindest/node:{{ .builtin.machinePool.version | replace "+" "_" }}
    - selector:
        apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
        kind: DockerMachineTemplate
        matchResources:
          controlPlane: true
      jsonPatches:
      - op: add
        path: "/spec/template/spec/customImage"
        valueFrom:
          template: |
            kindest/node:{{ .builtin.controlPlane.version | replace "+" "_" }}
  - name: podSecurityStandard
    description: "Adds an admission configuration for PodSecurity to the kube-apiserver."
    definitions:
    - selector:
        apiVersion: controlplane.cluster.x-k8s.io/v1beta1
        kind: KubeadmControlPlaneTemplate
        matchResources:
          controlPlane: true
      jsonPatches:
      - op: add
        path: "/spec/template/spec/kubeadmConfigSpec/clusterConfiguration/apiServer/extraArgs"
        value:
          admission-control-config-file: "/etc/kubernetes/kube-apiserver-admission-pss.yaml"
      - op: add
        path: "/spec/template/spec/kubeadmConfigSpec/clusterConfiguration/apiServer/extraVolumes"
        value:
        - name: admission-pss
          hostPath: /etc/kubernetes/kube-apiserver-admission-pss.yaml
          mountPath: /etc/kubernetes/kube-apiserver-admission-pss.yaml
          readOnly: true
          pathType: "File"
      - op: add
        path: "/spec/template/spec/kubeadmConfigSpec/files"
        valueFrom:
          template: |
            - content: |
                apiVersion: apiserver.config.k8s.io/v1
                kind: AdmissionConfiguration
                plugins:
                - name: PodSecurity
                  configuration:
                    apiVersion: pod-security.admission.config.k8s.io/v1{{ if semverCompare "< v1.25" .builtin.controlPlane.version }}beta1{{ end }}
                    kind: PodSecurityConfiguration
                    defaults:
                      enforce: "{{ .podSecurityStandard.enforce }}"
                      enforce-version: "latest"
                      audit: "{{ .podSecurityStandard.audit }}"
                      audit-version: "latest"
                      warn: "{{ .podSecurityStandard.warn }}"
                      warn-version: "latest"
                    exemptions:
                      usernames: []
                      runtimeClasses: []
                      namespaces: [kube-system]
              path: /etc/kubernetes/kube-apiserver-admission-pss.yaml
    enabledIf: "{{ .podSecurityStandard.enabled }}"
---
apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
kind: DockerClusterTemplate
metadata:
  name: quick-start-cluster
spec:
  template:
    spec: {}
---
kind: KubeadmControlPlaneTemplate
apiVersion: controlplane.cluster.x-k8s.io/v1beta1
metadata:
  name: quick-start-control-plane
spec:
  template:
    spec:
      kubeadmConfigSpec:
        clusterConfiguration:
          apiServer:
            # host.docker.internal is required by kubetest when running on MacOS because of the way ports are proxied.
            certSANs: [localhost, 127.0.0.1, 0.0.0.0, host.docker.internal]
        initConfiguration:
          nodeRegistration: {} # node registration parameters are automatically injected by CAPD according to the kindest/node image in use.
        joinConfiguration:
          nodeRegistration: {} # node registration parameters are automatically injected by CAPD according to the kindest/node image in use.
---
apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
kind: DockerMachineTemplate
metadata:
  name: quick-start-control-plane
spec:
  template:
    spec:
      extraMounts:
      - containerPath: "/var/run/docker.sock"
        hostPath: "/var/run/docker.sock"
---
apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
kind: DockerMachineTemplate
metadata:
  name: quick-start-default-worker-machinetemplate
spec:
  template:
    spec:
      extraMounts:
      - containerPath: "/var/run/docker.sock"
        hostPath: "/var/run/docker.sock"
---
apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
kind: DockerMachinePoolTemplate
metadata:
  name: quick-start-default-worker-machinepooltemplate
spec:
  template:
    spec:
      template: {}
---
apiVersion: bootstrap.cluster.x-k8s.io/v1beta1
kind: KubeadmConfigTemplate
metadata:
  name: quick-start-default-worker-bootstraptemplate
spec:
  template:
    spec:
      joinConfiguration:
        nodeRegistration: {} # node registration parameters are automatically injected by CAPD according to the kindest/node image in use.