7e10ab7bfa
This patch adds the new extend_volume API to the connector objects. The purpose of this patch is to add the ability to notify the host kernel when an attached volume has been resized. This allows both raw device paths and multipath devices to get new sizes on the fly without detaching and then reattaching to the host. Cinder Spec: https://review.openstack.org/#/c/243730/ To manually test: Use the brick_resize.py tool here: https://github.com/WaltHP/diediedie/blob/master/diediedie/brick_resize.py sample brick.conf to output debug logging for the brick_resize.py tool https://gist.github.com/WaltHP/e9b71e0ea1b1d9097762 After a successful resize, find the virt domain name then run virsh blockresize <domain name> <path to raw device> <new size> for example, blockresize instance-00000007 /dev/disk/by-id/dm-uuid-mpath-350002ace1dda383d 3145728 Implements blueprint: brick-extend-attached-volume Change-Id: I19858dd47afe3bdb3dd25c1dfead732a804cdee2
131 lines
3.9 KiB
Python
131 lines
3.9 KiB
Python
# (c) Copyright 2013 Hewlett-Packard Development Company, L.P.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Exceptions for the Brick library."""
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import six
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from os_brick.i18n import _, _LE
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from oslo_log import log as logging
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LOG = logging.getLogger(__name__)
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class BrickException(Exception):
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"""Base Brick Exception
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To correctly use this class, inherit from it and define
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a 'msg_fmt' property. That msg_fmt will get printf'd
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with the keyword arguments provided to the constructor.
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"""
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message = _("An unknown exception occurred.")
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code = 500
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headers = {}
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safe = False
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def __init__(self, message=None, **kwargs):
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self.kwargs = kwargs
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if 'code' not in self.kwargs:
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try:
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self.kwargs['code'] = self.code
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except AttributeError:
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pass
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if not message:
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try:
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message = self.message % kwargs
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except Exception:
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# kwargs doesn't match a variable in the message
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# log the issue and the kwargs
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LOG.exception(_LE("Exception in string format operation. "
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"msg='%s'"), self.message)
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for name, value in kwargs.items():
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LOG.error(_LE("%(name)s: %(value)s"), {'name': name,
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'value': value})
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# at least get the core message out if something happened
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message = self.message
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# Put the message in 'msg' so that we can access it. If we have it in
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# message it will be overshadowed by the class' message attribute
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self.msg = message
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super(BrickException, self).__init__(message)
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def __unicode__(self):
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return six.text_type(self.msg)
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class NotFound(BrickException):
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message = _("Resource could not be found.")
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code = 404
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safe = True
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class Invalid(BrickException):
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message = _("Unacceptable parameters.")
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code = 400
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# Cannot be templated as the error syntax varies.
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# msg needs to be constructed when raised.
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class InvalidParameterValue(Invalid):
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message = _("%(err)s")
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class NoFibreChannelHostsFound(BrickException):
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message = _("We are unable to locate any Fibre Channel devices.")
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class NoFibreChannelVolumeDeviceFound(BrickException):
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message = _("Unable to find a Fibre Channel volume device.")
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class VolumeDeviceNotFound(BrickException):
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message = _("Volume device not found at %(device)s.")
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class VolumePathsNotFound(BrickException):
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message = _("Could not find any paths for the volume.")
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class VolumePathNotRemoved(BrickException):
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message = _("Volume path %(volume_path)s was not removed in time.")
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class ProtocolNotSupported(BrickException):
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message = _("Connect to volume via protocol %(protocol)s not supported.")
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class TargetPortalNotFound(BrickException):
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message = _("Unable to find target portal %(target_portal)s.")
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class FailedISCSITargetPortalLogin(BrickException):
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message = _("Unable to login to iSCSI Target Portal")
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class BlockDeviceReadOnly(BrickException):
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message = _("Block device %(device)s is Read-Only.")
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class VolumeGroupNotFound(BrickException):
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message = _("Unable to find Volume Group: %(vg_name)s")
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class VolumeGroupCreationFailed(BrickException):
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message = _("Failed to create Volume Group: %(vg_name)s")
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