code: def create_cvmfs_storage_class(cvmfs_volume):
      
      from kubernetes.client.rest import ApiException
      from reana_commons.k8s.api_client import current_k8s_storagev1_api_client
  
      try:
          current_k8s_storagev1_api_client.\
              create_storage_class(
                  render_cvmfs_sc(cvmfs_volume)
              )
      except ApiException as e:
          if e.status != 409:
              raise e
docs: Create CVMFS storage class.