os-brick/os_brick/privileged/rbd.py

64 lines
2.0 KiB
Python

# Copyright (c) 2020, Red Hat, Inc.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from typing import Optional
from oslo_utils import fileutils
from oslo_utils import importutils
import os_brick.privileged
# Lazy load the rbd module to avoid circular references
RBDConnector: Optional['os_brick.initiator.connectors.rbd.RBDConnector'] = None
def _get_rbd_class():
global RBDConnector
global get_rbd_class
# Lazy load the class
if not RBDConnector:
rbd_class_route = 'os_brick.initiator.connectors.rbd.RBDConnector'
RBDConnector = importutils.import_class(rbd_class_route)
# Job is done, following calls don't need to do anything
get_rbd_class = lambda: None # noqa
get_rbd_class = _get_rbd_class
@os_brick.privileged.default.entrypoint
def delete_if_exists(path):
return fileutils.delete_if_exists(path)
@os_brick.privileged.default.entrypoint
def root_create_ceph_conf(monitor_ips, monitor_ports, cluster_name, user,
keyring):
"""Create a .conf file for Ceph cluster only accessible by root."""
get_rbd_class()
assert RBDConnector is not None
return RBDConnector._create_ceph_conf(monitor_ips, monitor_ports,
cluster_name, user, keyring)
@os_brick.privileged.default.entrypoint
def check_valid_path(path):
get_rbd_class()
assert RBDConnector is not None
with open(path, 'rb') as rbd_handle:
return RBDConnector._check_valid_device(rbd_handle)