ceph.rook.io filesystem

apiVersion: ceph.rook.io/v1beta1
kind: Filesystem
metadata:
  name: myfs
  namespace: rook-ceph
spec:
  metadataPool:
    replicated:
      size: 3
  dataPools:
    - erasureCoded:
       dataChunks: 2
       codingChunks: 1
  metadataServer:
    activeCount: 1
    activeStandby: true

FlexVolume for jupyter kubeflow

    pvc_mount = os.environ.get('NOTEBOOK_PVC_MOUNT')
    if pvc_mount and pvc_mount != 'null':
        c.KubeSpawner.user_storage_pvc_ensure = True
        c.KubeSpawner.storage_pvc_ensure = True
        # How much disk space do we want?
        c.KubeSpawner.user_storage_capacity = '10Gi'
        c.KubeSpawner.storage_capacity = '10Gi'
        c.KubeSpawner.pvc_name_template = 'claim-{username}{servername}'
        volumes.append(
            {
                'name': 'volume-{username}{servername}',
                'persistentVolumeClaim': {
                    'claimName': 'claim-{username}{servername}'
                }
            }
        )
        volume_mounts.append(
            {
                'mountPath': pvc_mount,
                'name': 'volume-{username}{servername}'
            }
        )
        volume_mounts.append(
            {
                'mountPath': pvc_mount + '/data',
                'name': 'fs-store'
            }
        )
        volumes.append(
           {
                'flexVolume': {
                        'driver': 'ceph.rook.io/rook',
                        'fsType': 'ceph',
                        'options':{'clusterName': 'rook', 'clusterNamespace': 'rook-ceph','fsName': 'myfs'}
                        'fsname': 'myfs',
                },'name': 'fs-store'
           }
        )
    c.KubeSpawner.volumes = volumes
    c.KubeSpawner.volume_mounts = volume_mounts