51 ダイレクトネットワークプロビジョニング（シングルノード）によるダウンストリームクラスターのプロビジョニング #

apiVersion: v1
kind: Secret
metadata:
  name: example-demo-credentials
type: Opaque
data:
  username: ${BMC_USERNAME}
  password: ${BMC_PASSWORD}
---
apiVersion: metal3.io/v1alpha1
kind: BareMetalHost
metadata:
  name: example-demo
  labels:
    cluster-role: control-plane
spec:
  architecture: x86_64
  online: true
  bootMACAddress: ${BMC_MAC}
  rootDeviceHints:
    deviceName: /dev/nvme0n1
  bmc:
    address: ${BMC_ADDRESS}
    disableCertificateVerification: true
    credentialsName: example-demo-credentials

apiVersion: cluster.x-k8s.io/v1beta2
kind: Cluster
metadata:
  name: single-node-cluster
  namespace: default
  labels:
    cluster-api.cattle.io/rancher-auto-import: "true"
spec:
  clusterNetwork:
    pods:
      cidrBlocks:
        - 192.168.0.0/18
        - fd00:bad:cafe::/48
    services:
      cidrBlocks:
        - 10.96.0.0/12
        - fd00:bad:bad:cafe::/112
  controlPlaneRef:
    apiGroup: controlplane.cluster.x-k8s.io
    kind: RKE2ControlPlane
    name: single-node-cluster
  infrastructureRef:
    apiGroup: infrastructure.cluster.x-k8s.io
    kind: Metal3Cluster
    name: single-node-cluster

apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
kind: Metal3Cluster
metadata:
  name: single-node-cluster
  namespace: default
spec:
  controlPlaneEndpoint:
    host: ${DOWNSTREAM_CONTROL_PLANE_IPV4}
    port: 6443
  noCloudProvider: true

apiVersion: controlplane.cluster.x-k8s.io/v1beta2
kind: RKE2ControlPlane
metadata:
  name: single-node-cluster
  namespace: default
  annotations: {
    rke2.controlplane.cluster.x-k8s.io/load-balancer-exclusion: "true"
  }
spec:
  machineTemplate:
  infrastructureRef:
    apiGroup: infrastructure.cluster.x-k8s.io
    kind: Metal3MachineTemplate
    name: single-node-cluster-controlplane
  replicas: 1
  version: ${RKE2_VERSION}
  rolloutStrategy:
    type: "RollingUpdate"
    rollingUpdate:
      maxSurge: 0
  serverConfig:
    cni: cilium
  agentConfig:
    format: ignition
    additionalUserData:
      config: |
        variant: fcos
        version: 1.4.0
        systemd:
          units:
          - name: rke2-preinstall.service
            enabled: true
            contents: |
              [Unit]
              Description=rke2-preinstall
              Wants=network-online.target
              Before=rke2-install.service
              ConditionPathExists=!/run/cluster-api/bootstrap-success.complete
              [Service]
              Type=oneshot
              User=root
              ExecStartPre=/bin/sh -c "mount -L config-2 /mnt"
              ExecStart=/bin/sh -c "sed -i \"s/BAREMETALHOST_UUID/$(jq -r .uuid /mnt/openstack/latest/meta_data.json)/\" /etc/rancher/rke2/config.yaml"
              ExecStart=/bin/sh -c "echo \"node-name: $(jq -r .name /mnt/openstack/latest/meta_data.json)\" >> /etc/rancher/rke2/config.yaml"
              ExecStart=/bin/sh -c "echo \"node-label:\" >> /etc/rancher/rke2/config.yaml"
              ExecStart=/bin/sh -c "echo \"  - metal3.io/uuid=$(jq -r .uuid /mnt/openstack/latest/meta_data.json)\" >> /etc/rancher/rke2/config.yaml"
              ExecStartPost=/bin/sh -c "umount /mnt"
              [Install]
              WantedBy=multi-user.target
          # rke2-traefik-deployment.service unit to be removed once "traefik" being the default ingress controller (starting with RKE2 v1.36)
          - name: rke2-traefik-deployment.service
            enabled: true
            contents: |
              [Unit]
              Description=rke2-traefik-deployment
              Wants=rke2-preinstall.service
              Before=rke2-install.service
              ConditionPathExists=!/run/cluster-api/bootstrap-success.complete
              [Service]
              Type=oneshot
              User=root
              ExecStart=/bin/sh -c "echo \"ingress-controller: traefik\" >> /etc/rancher/rke2/config.yaml"
              [Install]
              WantedBy=multi-user.target
        storage:
          directories:
          - path: /var/lib/rancher/rke2/server/manifests
            overwrite: true
          files:
          # https://docs.rke2.io/networking/multus_sriov#using-multus-with-cilium
          - path: /var/lib/rancher/rke2/server/manifests/rke2-cilium-config.yaml
            overwrite: true
            contents:
              inline: |
                apiVersion: helm.cattle.io/v1
                kind: HelmChartConfig
                metadata:
                  name: rke2-cilium
                  namespace: kube-system
                spec:
                  valuesContent: |-
                    cni:
                      exclusive: false
            mode: 0644
            user:
              name: root
            group:
              name: root
          - path: /var/lib/rancher/rke2/server/manifests/rke2-traefik-config.yaml
            overwrite: true
            contents:
              inline: |
                apiVersion: helm.cattle.io/v1
                kind: HelmChartConfig
                metadata:
                  name: rke2-traefik
                  namespace: kube-system
                spec:
                  valuesContent: |-
                    ingressClass:
                      isDefaultClass: true
                    ports:
                      web:
                        hostPort: null    # disallow hostPort
                        exposedPort: 80
                      websecure:
                        hostPort: null    # disallow hostPort
                        exposedPort: 443
                    service:
                      enabled: true
                      type: LoadBalancer
                      spec:
                        externalTrafficPolicy: Local
                        allocateLoadBalancerNodePorts: false  # k8s GA from 1.24; supported by MetalLB
            mode: 0644
            user:
              name: root
            group:
              name: root
    kubelet:
      extraArgs:
      - provider-id=metal3://BAREMETALHOST_UUID
    nodeName: "localhost.localdomain"

apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
kind: Metal3MachineTemplate
metadata:
  name: single-node-cluster-controlplane
  namespace: default
spec:
  template:
    spec:
      dataTemplate:
        name: single-node-cluster-controlplane-template
      hostSelector:
        matchLabels:
          cluster-role: control-plane
      image:
        checksum: http://imagecache.local:8080/eibimage-output-telco.raw.sha256
        checksumType: sha256
        format: raw
        url: http://imagecache.local:8080/eibimage-output-telco.raw

apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
kind: Metal3DataTemplate
metadata:
  name: single-node-cluster-controlplane-template
  namespace: default
spec:
  clusterName: single-node-cluster
  metaData:
    objectNames:
    - key: name
      object: machine
    - key: local-hostname
      object: machine
    - key: local_hostname
      object: machine