my-rook-config/deploy/examples/cluster-on-local-pvc.yaml

#################################################################################################################
# Define the settings for the rook-ceph cluster with common settings for a production cluster on top of bare metal.

# This example expects three nodes, each with two available disks. Please modify it according to your environment.
# See the documentation for more details on storage settings available.

# For example, to create the cluster:
#   kubectl create -f crds.yaml -f common.yaml -f operator.yaml
#   kubectl create -f cluster-on-local-pvc.yaml
#################################################################################################################
kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
  name: local-storage
provisioner: kubernetes.io/no-provisioner
volumeBindingMode: WaitForFirstConsumer
---
kind: PersistentVolume
apiVersion: v1
metadata:
  name: local0-0
spec:
  storageClassName: local-storage
  capacity:
    storage: 10Gi
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Retain
  # PV for mon must be a filesystem volume.
  volumeMode: Filesystem
  local:
    # If you want to use dm devices like logical volume, please replace `/dev/sdb` with their device names like `/dev/vg-name/lv-name`.
    path: /dev/sdb
  nodeAffinity:
    required:
      nodeSelectorTerms:
        - matchExpressions:
            - key: kubernetes.io/hostname
              operator: In
              values:
                - host0
---
kind: PersistentVolume
apiVersion: v1
metadata:
  name: local0-1
spec:
  storageClassName: local-storage
  capacity:
    storage: 10Gi
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Retain
  # PV for OSD must be a block volume.
  volumeMode: Block
  local:
    path: /dev/sdc
  nodeAffinity:
    required:
      nodeSelectorTerms:
        - matchExpressions:
            - key: kubernetes.io/hostname
              operator: In
              values:
                - host0
---
kind: PersistentVolume
apiVersion: v1
metadata:
  name: local1-0
spec:
  storageClassName: local-storage
  capacity:
    storage: 10Gi
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Retain
  volumeMode: Filesystem
  local:
    path: /dev/sdb
  nodeAffinity:
    required:
      nodeSelectorTerms:
        - matchExpressions:
            - key: kubernetes.io/hostname
              operator: In
              values:
                - host1
---
kind: PersistentVolume
apiVersion: v1
metadata:
  name: local1-1
spec:
  storageClassName: local-storage
  capacity:
    storage: 10Gi
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Retain
  volumeMode: Block
  local:
    path: /dev/sdc
  nodeAffinity:
    required:
      nodeSelectorTerms:
        - matchExpressions:
            - key: kubernetes.io/hostname
              operator: In
              values:
                - host1
---
kind: PersistentVolume
apiVersion: v1
metadata:
  name: local2-0
spec:
  storageClassName: local-storage
  capacity:
    storage: 10Gi
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Retain
  volumeMode: Filesystem
  local:
    path: /dev/sdb
  nodeAffinity:
    required:
      nodeSelectorTerms:
        - matchExpressions:
            - key: kubernetes.io/hostname
              operator: In
              values:
                - host2
---
kind: PersistentVolume
apiVersion: v1
metadata:
  name: local2-1
spec:
  storageClassName: local-storage
  capacity:
    storage: 10Gi
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Retain
  volumeMode: Block
  local:
    path: /dev/sdc
  nodeAffinity:
    required:
      nodeSelectorTerms:
        - matchExpressions:
            - key: kubernetes.io/hostname
              operator: In
              values:
                - host2
---
apiVersion: ceph.rook.io/v1
kind: CephCluster
metadata:
  name: rook-ceph
  namespace: rook-ceph # namespace:cluster
spec:
  # If there are multiple clusters, the directory must be unique for each cluster.
  dataDirHostPath: /var/lib/rook
  mon:
    count: 3
    allowMultiplePerNode: false
    volumeClaimTemplate:
      spec:
        storageClassName: local-storage
        resources:
          requests:
            storage: 10Gi
  cephVersion:
    image: quay.io/ceph/ceph:v19.2.3
    allowUnsupported: false
  skipUpgradeChecks: false
  continueUpgradeAfterChecksEvenIfNotHealthy: false
  mgr:
    count: 1
  dashboard:
    enabled: true
    ssl: true
  crashCollector:
    disable: false
  storage:
    storageClassDeviceSets:
      - name: set1
        count: 3
        portable: false
        tuneDeviceClass: true
        tuneFastDeviceClass: false
        encrypted: false
        placement:
          topologySpreadConstraints:
            - maxSkew: 1
              topologyKey: kubernetes.io/hostname
              whenUnsatisfiable: ScheduleAnyway
              labelSelector:
                matchExpressions:
                  - key: app
                    operator: In
                    values:
                      - rook-ceph-osd
                      - rook-ceph-osd-prepare
        preparePlacement:
          podAntiAffinity:
            preferredDuringSchedulingIgnoredDuringExecution:
              - weight: 100
                podAffinityTerm:
                  labelSelector:
                    matchExpressions:
                      - key: app
                        operator: In
                        values:
                          - rook-ceph-osd
                      - key: app
                        operator: In
                        values:
                          - rook-ceph-osd-prepare
                  topologyKey: kubernetes.io/hostname
        resources:
        # These are the OSD daemon limits. For OSD prepare limits, see the separate section below for "prepareosd" resources
        #   limits:
        #     memory: "4Gi"
        #   requests:
        #     cpu: "500m"
        #     memory: "4Gi"
        volumeClaimTemplates:
          - metadata:
              name: data
              # if you are looking at giving your OSD a different CRUSH device class than the one detected by Ceph
              # annotations:
              #   crushDeviceClass: hybrid
            spec:
              resources:
                requests:
                  storage: 10Gi
              # IMPORTANT: Change the storage class depending on your environment
              storageClassName: local-storage
              volumeMode: Block
              accessModes:
                - ReadWriteOnce
    # when onlyApplyOSDPlacement is false, will merge both placement.All() and storageClassDeviceSets.Placement
    onlyApplyOSDPlacement: false
  resources:
  #  prepareosd:
  #    requests:
  #      cpu: "200m"
  #      memory: "200Mi"
  priorityClassNames:
    mon: system-node-critical
    osd: system-node-critical
    mgr: system-cluster-critical
  disruptionManagement:
    managePodBudgets: true
    osdMaintenanceTimeout: 30