cfbaba3176
This patch implements resizing an instance to a smaller disk. It implements this by copying the VDI and running e2resize, before transferring to the new host. Change-Id: Ic901a59cb6cdb79605c70528cf85064d8335ee2f
871 lines
24 KiB
Python
871 lines
24 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2010 United States Government as represented by the
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# Administrator of the National Aeronautics and Space Administration.
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# All Rights Reserved.
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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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"""Nova base exception handling.
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Includes decorator for re-raising Nova-type exceptions.
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SHOULD include dedicated exception logging.
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"""
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from functools import wraps
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import sys
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from novaclient import exceptions as novaclient_exceptions
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from nova import log as logging
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LOG = logging.getLogger('nova.exception')
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def novaclient_converter(f):
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"""Convert novaclient ClientException HTTP codes to webob exceptions.
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Has to be the outer-most decorator.
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"""
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def new_f(*args, **kwargs):
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try:
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ret = f(*args, **kwargs)
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return ret
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except novaclient_exceptions.ClientException, e:
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raise ConvertedException(e.code, e.message, e.details)
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return new_f
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class ProcessExecutionError(IOError):
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def __init__(self, stdout=None, stderr=None, exit_code=None, cmd=None,
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description=None):
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if description is None:
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description = _('Unexpected error while running command.')
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if exit_code is None:
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exit_code = '-'
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message = _('%(description)s\nCommand: %(cmd)s\n'
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'Exit code: %(exit_code)s\nStdout: %(stdout)r\n'
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'Stderr: %(stderr)r') % locals()
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IOError.__init__(self, message)
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class Error(Exception):
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def __init__(self, message=None):
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super(Error, self).__init__(message)
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class ApiError(Error):
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def __init__(self, message='Unknown', code=None):
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self.msg = message
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self.code = code
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if code:
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outstr = '%s: %s' % (code, message)
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else:
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outstr = '%s' % message
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super(ApiError, self).__init__(outstr)
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class RebuildRequiresActiveInstance(Error):
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pass
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class DBError(Error):
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"""Wraps an implementation specific exception."""
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def __init__(self, inner_exception=None):
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self.inner_exception = inner_exception
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super(DBError, self).__init__(str(inner_exception))
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def wrap_db_error(f):
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def _wrap(*args, **kwargs):
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try:
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return f(*args, **kwargs)
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except Exception, e:
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LOG.exception(_('DB exception wrapped.'))
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raise DBError(e)
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_wrap.func_name = f.func_name
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return _wrap
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def wrap_exception(notifier=None, publisher_id=None, event_type=None,
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level=None):
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"""This decorator wraps a method to catch any exceptions that may
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get thrown. It logs the exception as well as optionally sending
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it to the notification system.
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"""
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# TODO(sandy): Find a way to import nova.notifier.api so we don't have
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# to pass it in as a parameter. Otherwise we get a cyclic import of
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# nova.notifier.api -> nova.utils -> nova.exception :(
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# TODO(johannes): Also, it would be nice to use
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# utils.save_and_reraise_exception() without an import loop
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def inner(f):
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def wrapped(*args, **kw):
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try:
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return f(*args, **kw)
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except Exception, e:
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# Save exception since it can be clobbered during processing
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# below before we can re-raise
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exc_info = sys.exc_info()
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if notifier:
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payload = dict(args=args, exception=e)
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payload.update(kw)
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# Use a temp vars so we don't shadow
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# our outer definitions.
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temp_level = level
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if not temp_level:
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temp_level = notifier.ERROR
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temp_type = event_type
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if not temp_type:
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# If f has multiple decorators, they must use
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# functools.wraps to ensure the name is
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# propagated.
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temp_type = f.__name__
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notifier.notify(publisher_id, temp_type, temp_level,
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payload)
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# re-raise original exception since it may have been clobbered
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raise exc_info[0], exc_info[1], exc_info[2]
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return wraps(f)(wrapped)
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return inner
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class NovaException(Exception):
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"""Base Nova Exception
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To correctly use this class, inherit from it and define
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a 'message' property. That message 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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def __init__(self, message=None, **kwargs):
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self.kwargs = kwargs
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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 as e:
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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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super(NovaException, self).__init__(message)
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class ImagePaginationFailed(NovaException):
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message = _("Failed to paginate through images from image service")
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class VirtualInterfaceCreateException(NovaException):
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message = _("Virtual Interface creation failed")
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class VirtualInterfaceMacAddressException(NovaException):
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message = _("5 attempts to create virtual interface"
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"with unique mac address failed")
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class NotAuthorized(NovaException):
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message = _("Not authorized.")
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def __init__(self, *args, **kwargs):
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super(NotAuthorized, self).__init__(*args, **kwargs)
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class AdminRequired(NotAuthorized):
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message = _("User does not have admin privileges")
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class InstanceBusy(NovaException):
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message = _("Instance %(instance_id)s is busy. (%(task_state)s)")
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class InstanceSnapshotting(InstanceBusy):
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message = _("Instance %(instance_uuid)s is currently snapshotting.")
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class InstanceBackingUp(InstanceBusy):
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message = _("Instance %(instance_uuid)s is currently being backed up.")
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class Invalid(NovaException):
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message = _("Unacceptable parameters.")
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class InvalidRequest(Invalid):
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message = _("The request is invalid.")
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class InvalidSignature(Invalid):
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message = _("Invalid signature %(signature)s for user %(user)s.")
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class InvalidInput(Invalid):
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message = _("Invalid input received") + ": %(reason)s"
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class InvalidInstanceType(Invalid):
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message = _("Invalid instance type %(instance_type)s.")
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class InvalidVolumeType(Invalid):
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message = _("Invalid volume type %(volume_type)s.")
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class InvalidPortRange(Invalid):
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message = _("Invalid port range %(from_port)s:%(to_port)s. %(msg)s")
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class InvalidIpProtocol(Invalid):
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message = _("Invalid IP protocol %(protocol)s.")
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class InvalidContentType(Invalid):
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message = _("Invalid content type %(content_type)s.")
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class InvalidCidr(Invalid):
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message = _("Invalid cidr %(cidr)s.")
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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 InstanceNotRunning(Invalid):
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message = _("Instance %(instance_id)s is not running.")
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class InstanceNotSuspended(Invalid):
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message = _("Instance %(instance_id)s is not suspended.")
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class InstanceNotInRescueMode(Invalid):
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message = _("Instance %(instance_id)s is not in rescue mode")
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class InstanceSuspendFailure(Invalid):
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message = _("Failed to suspend instance") + ": %(reason)s"
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class InstanceResumeFailure(Invalid):
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message = _("Failed to resume server") + ": %(reason)s."
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class InstanceRebootFailure(Invalid):
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message = _("Failed to reboot instance") + ": %(reason)s"
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class ServiceUnavailable(Invalid):
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message = _("Service is unavailable at this time.")
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class VolumeServiceUnavailable(ServiceUnavailable):
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message = _("Volume service is unavailable at this time.")
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class ComputeServiceUnavailable(ServiceUnavailable):
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message = _("Compute service is unavailable at this time.")
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class UnableToMigrateToSelf(Invalid):
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message = _("Unable to migrate instance (%(instance_id)s) "
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"to current host (%(host)s).")
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class SourceHostUnavailable(Invalid):
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message = _("Original compute host is unavailable at this time.")
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class InvalidHypervisorType(Invalid):
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message = _("The supplied hypervisor type of is invalid.")
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class DestinationHypervisorTooOld(Invalid):
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message = _("The instance requires a newer hypervisor version than "
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"has been provided.")
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class DestinationDiskExists(Invalid):
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message = _("The supplied disk path (%(path)s) already exists, "
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"it is expected not to exist.")
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class InvalidDevicePath(Invalid):
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message = _("The supplied device path (%(path)s) is invalid.")
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class InvalidCPUInfo(Invalid):
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message = _("Unacceptable CPU info") + ": %(reason)s"
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class InvalidVLANTag(Invalid):
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message = _("VLAN tag is not appropriate for the port group "
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"%(bridge)s. Expected VLAN tag is %(tag)s, "
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"but the one associated with the port group is %(pgroup)s.")
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class InvalidVLANPortGroup(Invalid):
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message = _("vSwitch which contains the port group %(bridge)s is "
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"not associated with the desired physical adapter. "
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"Expected vSwitch is %(expected)s, but the one associated "
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"is %(actual)s.")
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class InvalidDiskFormat(Invalid):
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message = _("Disk format %(disk_format)s is not acceptable")
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class ImageUnacceptable(Invalid):
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message = _("Image %(image_id)s is unacceptable") + ": %(reason)s"
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class InstanceUnacceptable(Invalid):
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message = _("Instance %(instance_id)s is unacceptable") + ": %(reason)s"
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class InvalidEc2Id(Invalid):
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message = _("Ec2 id %(ec2_id)s is unacceptable.")
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class NotFound(NovaException):
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message = _("Resource could not be found.")
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def __init__(self, *args, **kwargs):
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super(NotFound, self).__init__(*args, **kwargs)
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class FlagNotSet(NotFound):
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message = _("Required flag %(flag)s not set.")
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class InstanceNotFound(NotFound):
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message = _("Instance %(instance_id)s could not be found.")
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class VolumeNotFound(NotFound):
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message = _("Volume %(volume_id)s could not be found.")
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class VolumeNotFoundForInstance(VolumeNotFound):
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message = _("Volume not found for instance %(instance_id)s.")
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class VolumeMetadataNotFound(NotFound):
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message = _("Volume %(volume_id)s has no metadata with "
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"key %(metadata_key)s.")
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class NoVolumeTypesFound(NotFound):
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message = _("Zero volume types found.")
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class VolumeTypeNotFound(NotFound):
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message = _("Volume type %(volume_type_id)s could not be found.")
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class VolumeTypeNotFoundByName(VolumeTypeNotFound):
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message = _("Volume type with name %(volume_type_name)s "
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"could not be found.")
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class VolumeTypeExtraSpecsNotFound(NotFound):
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message = _("Volume Type %(volume_type_id)s has no extra specs with "
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"key %(extra_specs_key)s.")
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class SnapshotNotFound(NotFound):
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message = _("Snapshot %(snapshot_id)s could not be found.")
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class VolumeIsBusy(NovaException):
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message = _("deleting volume %(volume_name)s that has snapshot")
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class ISCSITargetNotFoundForVolume(NotFound):
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message = _("No target id found for volume %(volume_id)s.")
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class DiskNotFound(NotFound):
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message = _("No disk at %(location)s")
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class VolumeDriverNotFound(NotFound):
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message = _("Could not find a handler for %(driver_type)s volume.")
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class InvalidImageRef(Invalid):
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message = _("Invalid image href %(image_href)s.")
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class ListingImageRefsNotSupported(Invalid):
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message = _("Some images have been stored via hrefs."
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+ " This version of the api does not support displaying image hrefs.")
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class ImageNotFound(NotFound):
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message = _("Image %(image_id)s could not be found.")
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class KernelNotFoundForImage(ImageNotFound):
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message = _("Kernel not found for image %(image_id)s.")
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class UserNotFound(NotFound):
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message = _("User %(user_id)s could not be found.")
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class ProjectNotFound(NotFound):
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message = _("Project %(project_id)s could not be found.")
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class ProjectMembershipNotFound(NotFound):
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message = _("User %(user_id)s is not a member of project %(project_id)s.")
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class UserRoleNotFound(NotFound):
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message = _("Role %(role_id)s could not be found.")
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class StorageRepositoryNotFound(NotFound):
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message = _("Cannot find SR to read/write VDI.")
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class NetworkNotCreated(NovaException):
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message = _("%(req)s is required to create a network.")
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class NetworkNotFound(NotFound):
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message = _("Network %(network_id)s could not be found.")
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class NetworkNotFoundForBridge(NetworkNotFound):
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message = _("Network could not be found for bridge %(bridge)s")
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class NetworkNotFoundForUUID(NetworkNotFound):
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message = _("Network could not be found for uuid %(uuid)s")
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class NetworkNotFoundForCidr(NetworkNotFound):
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message = _("Network could not be found with cidr %(cidr)s.")
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class NetworkNotFoundForInstance(NetworkNotFound):
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message = _("Network could not be found for instance %(instance_id)s.")
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class NoNetworksFound(NotFound):
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message = _("No networks defined.")
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class NetworkNotFoundForProject(NotFound):
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message = _("Either Network uuid %(network_uuid)s is not present or "
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"is not assigned to the project %(project_id)s.")
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class NetworkHostNotSet(NovaException):
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message = _("Host is not set to the network (%(network_id)s).")
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class DatastoreNotFound(NotFound):
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message = _("Could not find the datastore reference(s) which the VM uses.")
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class FixedIpNotFound(NotFound):
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message = _("No fixed IP associated with id %(id)s.")
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class FixedIpNotFoundForAddress(FixedIpNotFound):
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message = _("Fixed ip not found for address %(address)s.")
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class FixedIpNotFoundForInstance(FixedIpNotFound):
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message = _("Instance %(instance_id)s has zero fixed ips.")
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class FixedIpNotFoundForNetworkHost(FixedIpNotFound):
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message = _("Network host %(host)s has zero fixed ips "
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"in network %(network_id)s.")
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class FixedIpNotFoundForSpecificInstance(FixedIpNotFound):
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message = _("Instance %(instance_id)s doesn't have fixed ip '%(ip)s'.")
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class FixedIpNotFoundForVirtualInterface(FixedIpNotFound):
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message = _("Virtual interface %(vif_id)s has zero associated fixed ips.")
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class FixedIpNotFoundForHost(FixedIpNotFound):
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message = _("Host %(host)s has zero fixed ips.")
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class FixedIpNotFoundForNetwork(FixedIpNotFound):
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message = _("Fixed IP address (%(address)s) does not exist in "
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"network (%(network_uuid)s).")
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class FixedIpAlreadyInUse(NovaException):
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message = _("Fixed IP address %(address)s is already in use.")
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class FixedIpInvalid(Invalid):
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message = _("Fixed IP address %(address)s is invalid.")
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class NoMoreFixedIps(NovaException):
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message = _("Zero fixed ips available.")
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class NoFixedIpsDefined(NotFound):
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message = _("Zero fixed ips could be found.")
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class FloatingIpNotFound(NotFound):
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message = _("Floating ip not found for id %(id)s.")
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class FloatingIpNotFoundForAddress(FloatingIpNotFound):
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message = _("Floating ip not found for address %(address)s.")
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class FloatingIpNotFoundForHost(FloatingIpNotFound):
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message = _("Floating ip not found for host %(host)s.")
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class NoMoreFloatingIps(FloatingIpNotFound):
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message = _("Zero floating ips available.")
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class FloatingIpAssociated(NovaException):
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message = _("Floating ip %(address)s is associated.")
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class FloatingIpNotAssociated(NovaException):
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message = _("Floating ip %(address)s is not associated.")
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class NoFloatingIpsDefined(NotFound):
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message = _("Zero floating ips exist.")
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class KeypairNotFound(NotFound):
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message = _("Keypair %(name)s not found for user %(user_id)s")
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class CertificateNotFound(NotFound):
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message = _("Certificate %(certificate_id)s not found.")
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class ServiceNotFound(NotFound):
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message = _("Service %(service_id)s could not be found.")
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class HostNotFound(NotFound):
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message = _("Host %(host)s could not be found.")
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class ComputeHostNotFound(HostNotFound):
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message = _("Compute host %(host)s could not be found.")
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class HostBinaryNotFound(NotFound):
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message = _("Could not find binary %(binary)s on host %(host)s.")
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class AuthTokenNotFound(NotFound):
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message = _("Auth token %(token)s could not be found.")
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class AccessKeyNotFound(NotFound):
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message = _("Access Key %(access_key)s could not be found.")
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class QuotaNotFound(NotFound):
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message = _("Quota could not be found")
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class ProjectQuotaNotFound(QuotaNotFound):
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message = _("Quota for project %(project_id)s could not be found.")
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class SecurityGroupNotFound(NotFound):
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message = _("Security group %(security_group_id)s not found.")
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class SecurityGroupNotFoundForProject(SecurityGroupNotFound):
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message = _("Security group %(security_group_id)s not found "
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|
"for project %(project_id)s.")
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class SecurityGroupNotFoundForRule(SecurityGroupNotFound):
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message = _("Security group with rule %(rule_id)s not found.")
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class SecurityGroupExistsForInstance(Invalid):
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message = _("Security group %(security_group_id)s is already associated"
|
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" with the instance %(instance_id)s")
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class SecurityGroupNotExistsForInstance(Invalid):
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message = _("Security group %(security_group_id)s is not associated with"
|
|
" the instance %(instance_id)s")
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class MigrationNotFound(NotFound):
|
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message = _("Migration %(migration_id)s could not be found.")
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class MigrationNotFoundByStatus(MigrationNotFound):
|
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message = _("Migration not found for instance %(instance_id)s "
|
|
"with status %(status)s.")
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class ConsolePoolNotFound(NotFound):
|
|
message = _("Console pool %(pool_id)s could not be found.")
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class ConsolePoolNotFoundForHostType(NotFound):
|
|
message = _("Console pool of type %(console_type)s "
|
|
"for compute host %(compute_host)s "
|
|
"on proxy host %(host)s not found.")
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class ConsoleNotFound(NotFound):
|
|
message = _("Console %(console_id)s could not be found.")
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class ConsoleNotFoundForInstance(ConsoleNotFound):
|
|
message = _("Console for instance %(instance_id)s could not be found.")
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class ConsoleNotFoundInPoolForInstance(ConsoleNotFound):
|
|
message = _("Console for instance %(instance_id)s "
|
|
"in pool %(pool_id)s could not be found.")
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class NoInstanceTypesFound(NotFound):
|
|
message = _("Zero instance types found.")
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class InstanceTypeNotFound(NotFound):
|
|
message = _("Instance type %(instance_type_id)s could not be found.")
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class InstanceTypeNotFoundByName(InstanceTypeNotFound):
|
|
message = _("Instance type with name %(instance_type_name)s "
|
|
"could not be found.")
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|
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|
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class FlavorNotFound(NotFound):
|
|
message = _("Flavor %(flavor_id)s could not be found.")
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|
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|
|
class ZoneNotFound(NotFound):
|
|
message = _("Zone %(zone_id)s could not be found.")
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|
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|
|
class SchedulerHostFilterNotFound(NotFound):
|
|
message = _("Scheduler Host Filter %(filter_name)s could not be found.")
|
|
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|
|
class SchedulerCostFunctionNotFound(NotFound):
|
|
message = _("Scheduler cost function %(cost_fn_str)s could"
|
|
" not be found.")
|
|
|
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|
|
class SchedulerWeightFlagNotFound(NotFound):
|
|
message = _("Scheduler weight flag not found: %(flag_name)s")
|
|
|
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|
|
class InstanceMetadataNotFound(NotFound):
|
|
message = _("Instance %(instance_id)s has no metadata with "
|
|
"key %(metadata_key)s.")
|
|
|
|
|
|
class InstanceTypeExtraSpecsNotFound(NotFound):
|
|
message = _("Instance Type %(instance_type_id)s has no extra specs with "
|
|
"key %(extra_specs_key)s.")
|
|
|
|
|
|
class LDAPObjectNotFound(NotFound):
|
|
message = _("LDAP object could not be found")
|
|
|
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|
|
class LDAPUserNotFound(LDAPObjectNotFound):
|
|
message = _("LDAP user %(user_id)s could not be found.")
|
|
|
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|
|
class LDAPGroupNotFound(LDAPObjectNotFound):
|
|
message = _("LDAP group %(group_id)s could not be found.")
|
|
|
|
|
|
class LDAPGroupMembershipNotFound(NotFound):
|
|
message = _("LDAP user %(user_id)s is not a member of group %(group_id)s.")
|
|
|
|
|
|
class FileNotFound(NotFound):
|
|
message = _("File %(file_path)s could not be found.")
|
|
|
|
|
|
class NoFilesFound(NotFound):
|
|
message = _("Zero files could be found.")
|
|
|
|
|
|
class SwitchNotFoundForNetworkAdapter(NotFound):
|
|
message = _("Virtual switch associated with the "
|
|
"network adapter %(adapter)s not found.")
|
|
|
|
|
|
class NetworkAdapterNotFound(NotFound):
|
|
message = _("Network adapter %(adapter)s could not be found.")
|
|
|
|
|
|
class ClassNotFound(NotFound):
|
|
message = _("Class %(class_name)s could not be found: %(exception)s")
|
|
|
|
|
|
class NotAllowed(NovaException):
|
|
message = _("Action not allowed.")
|
|
|
|
|
|
class GlobalRoleNotAllowed(NotAllowed):
|
|
message = _("Unable to use global role %(role_id)s")
|
|
|
|
|
|
class ImageRotationNotAllowed(NovaException):
|
|
message = _("Rotation is not allowed for snapshots")
|
|
|
|
|
|
class RotationRequiredForBackup(NovaException):
|
|
message = _("Rotation param is required for backup image_type")
|
|
|
|
|
|
#TODO(bcwaldon): EOL this exception!
|
|
class Duplicate(NovaException):
|
|
pass
|
|
|
|
|
|
class KeyPairExists(Duplicate):
|
|
message = _("Key pair %(key_name)s already exists.")
|
|
|
|
|
|
class UserExists(Duplicate):
|
|
message = _("User %(user)s already exists.")
|
|
|
|
|
|
class LDAPUserExists(UserExists):
|
|
message = _("LDAP user %(user)s already exists.")
|
|
|
|
|
|
class LDAPGroupExists(Duplicate):
|
|
message = _("LDAP group %(group)s already exists.")
|
|
|
|
|
|
class LDAPMembershipExists(Duplicate):
|
|
message = _("User %(uid)s is already a member of "
|
|
"the group %(group_dn)s")
|
|
|
|
|
|
class ProjectExists(Duplicate):
|
|
message = _("Project %(project)s already exists.")
|
|
|
|
|
|
class InstanceExists(Duplicate):
|
|
message = _("Instance %(name)s already exists.")
|
|
|
|
|
|
class InvalidSharedStorage(NovaException):
|
|
message = _("%(path)s is on shared storage: %(reason)s")
|
|
|
|
|
|
class MigrationError(NovaException):
|
|
message = _("Migration error") + ": %(reason)s"
|
|
|
|
|
|
class MalformedRequestBody(NovaException):
|
|
message = _("Malformed message body: %(reason)s")
|
|
|
|
|
|
class PasteConfigNotFound(NotFound):
|
|
message = _("Could not find paste config at %(path)s")
|
|
|
|
|
|
class PasteAppNotFound(NotFound):
|
|
message = _("Could not load paste app '%(name)s' from %(path)s")
|
|
|
|
|
|
class VSANovaAccessParamNotFound(Invalid):
|
|
message = _("Nova access parameters were not specified.")
|
|
|
|
|
|
class VirtualStorageArrayNotFound(NotFound):
|
|
message = _("Virtual Storage Array %(id)d could not be found.")
|
|
|
|
|
|
class VirtualStorageArrayNotFoundByName(NotFound):
|
|
message = _("Virtual Storage Array %(name)s could not be found.")
|
|
|
|
|
|
class CannotResizeToSameSize(NovaException):
|
|
message = _("When resizing, instances must change size!")
|
|
|
|
|
|
class ImageTooLarge(NovaException):
|
|
message = _("Image is larger than instance type allows")
|
|
|
|
|
|
class ZoneRequestError(Error):
|
|
def __init__(self, message=None):
|
|
if message is None:
|
|
message = _("1 or more Zones could not complete the request")
|
|
super(ZoneRequestError, self).__init__(message=message)
|
|
|
|
|
|
class InstanceTypeMemoryTooSmall(NovaException):
|
|
message = _("Instance type's memory is too small for requested image.")
|
|
|
|
|
|
class InstanceTypeDiskTooSmall(NovaException):
|
|
message = _("Instance type's disk is too small for requested image.")
|
|
|
|
|
|
class InsufficientFreeMemory(NovaException):
|
|
message = _("Insufficient free memory on compute node to start %(uuid)s.")
|
|
|
|
|
|
class CouldNotFetchMetrics(NovaException):
|
|
message = _("Could not fetch bandwidth/cpu/disk metrics for this host.")
|
|
|
|
|
|
class NoValidHost(NovaException):
|
|
message = _("No valid host was found. %(reason)s")
|
|
|
|
|
|
class WillNotSchedule(NovaException):
|
|
message = _("Host %(host)s is not up or doesn't exist.")
|
|
|
|
|
|
class QuotaError(ApiError):
|
|
"""Quota Exceeded."""
|
|
pass
|