600 lines
16 KiB
Python
600 lines
16 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 nova import log as logging
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LOG = logging.getLogger('nova.exception')
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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 BuildInProgress(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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return _wrap
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_wrap.func_name = f.func_name
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def wrap_exception(f):
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def _wrap(*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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if not isinstance(e, Error):
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#exc_type, exc_value, exc_traceback = sys.exc_info()
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LOG.exception(_('Uncaught exception'))
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#logging.error(traceback.extract_stack(exc_traceback))
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raise Error(str(e))
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raise
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_wrap.func_name = f.func_name
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return _wrap
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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, **kwargs):
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try:
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self._error_string = self.message % kwargs
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except Exception:
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# at least get the core message out if something happened
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self._error_string = self.message
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def __str__(self):
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return self._error_string
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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__(**kwargs)
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class AdminRequired(NotAuthorized):
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message = _("User does not have admin privileges")
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class Invalid(NovaException):
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message = _("Unacceptable parameters.")
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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 InvalidPortRange(Invalid):
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message = _("Invalid port range %(from_port)s:%(to_port)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 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 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__(**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 SnapshotNotFound(NotFound):
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message = _("Snapshot %(snapshot_id)s could not be found.")
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class VolumeIsBusy(Error):
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message = _("deleting volume %(volume_name)s that has snapshot")
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class ExportDeviceNotFoundForVolume(NotFound):
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message = _("No export device found for volume %(volume_id)s.")
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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 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 RamdiskNotFoundForImage(ImageNotFound):
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message = _("Ramdisk 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 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 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 DatastoreNotFound(NotFound):
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message = _("Could not find the datastore reference(s) which the VM uses.")
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class NoFixedIpsFoundForInstance(NotFound):
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message = _("Instance %(instance_id)s has zero fixed ips.")
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class FloatingIpNotFound(NotFound):
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message = _("Floating ip not found for fixed address %(fixed_ip)s.")
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class NoFloatingIpsDefined(NotFound):
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message = _("Zero floating ips could be found.")
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class NoFloatingIpsDefinedForHost(NoFloatingIpsDefined):
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message = _("Zero floating ips defined for host %(host)s.")
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class NoFloatingIpsDefinedForInstance(NoFloatingIpsDefined):
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message = _("Zero floating ips defined for instance %(instance_id)s.")
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class NoMoreFloatingIps(NotFound):
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message = _("Zero floating ips available.")
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class KeypairNotFound(NotFound):
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message = _("Keypair %(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 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 "
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"with status %(status)s.")
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class ConsolePoolNotFound(NotFound):
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message = _("Console pool %(pool_id)s could not be found.")
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class ConsolePoolNotFoundForHostType(NotFound):
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message = _("Console pool of type %(console_type)s "
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"for compute host %(compute_host)s "
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"on proxy host %(host)s not found.")
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class ConsoleNotFound(NotFound):
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message = _("Console %(console_id)s could not be found.")
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class ConsoleNotFoundForInstance(ConsoleNotFound):
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message = _("Console for instance %(instance_id)s could not be found.")
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class ConsoleNotFoundInPoolForInstance(ConsoleNotFound):
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message = _("Console for instance %(instance_id)s "
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"in pool %(pool_id)s could not be found.")
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class NoInstanceTypesFound(NotFound):
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message = _("Zero instance types found.")
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class InstanceTypeNotFound(NotFound):
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message = _("Instance type %(instance_type_id)s could not be found.")
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class InstanceTypeNotFoundByName(InstanceTypeNotFound):
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message = _("Instance type with name %(instance_type_name)s "
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"could not be found.")
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class FlavorNotFound(NotFound):
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message = _("Flavor %(flavor_id)s could not be found.")
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class ZoneNotFound(NotFound):
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message = _("Zone %(zone_id)s could not be found.")
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class SchedulerHostFilterNotFound(NotFound):
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message = _("Scheduler Host Filter %(filter_name)s could not be found.")
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class SchedulerCostFunctionNotFound(NotFound):
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message = _("Scheduler cost function %(cost_fn_str)s could"
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" not be found.")
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class SchedulerWeightFlagNotFound(NotFound):
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message = _("Scheduler weight flag not found: %(flag_name)s")
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class InstanceMetadataNotFound(NotFound):
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message = _("Instance %(instance_id)s has no metadata with "
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"key %(metadata_key)s.")
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class LDAPObjectNotFound(NotFound):
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message = _("LDAP object could not be found")
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class LDAPUserNotFound(LDAPObjectNotFound):
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message = _("LDAP user %(user_id)s could not be found.")
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class LDAPGroupNotFound(LDAPObjectNotFound):
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message = _("LDAP group %(group_id)s could not be found.")
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class LDAPGroupMembershipNotFound(NotFound):
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message = _("LDAP user %(user_id)s is not a member of group %(group_id)s.")
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class FileNotFound(NotFound):
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message = _("File %(file_path)s could not be found.")
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class NoFilesFound(NotFound):
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message = _("Zero files could be found.")
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class SwitchNotFoundForNetworkAdapter(NotFound):
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message = _("Virtual switch associated with the "
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"network adapter %(adapter)s not found.")
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class NetworkAdapterNotFound(NotFound):
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message = _("Network adapter %(adapter)s could not be found.")
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class ClassNotFound(NotFound):
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message = _("Class %(class_name)s could not be found")
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class NotAllowed(NovaException):
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message = _("Action not allowed.")
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class GlobalRoleNotAllowed(NotAllowed):
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message = _("Unable to use global role %(role_id)s")
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#TODO(bcwaldon): EOL this exception!
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class Duplicate(NovaException):
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pass
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class KeyPairExists(Duplicate):
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message = _("Key pair %(key_name)s already exists.")
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class UserExists(Duplicate):
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message = _("User %(user)s already exists.")
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class LDAPUserExists(UserExists):
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message = _("LDAP user %(user)s already exists.")
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class LDAPGroupExists(Duplicate):
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message = _("LDAP group %(group)s already exists.")
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class LDAPMembershipExists(Duplicate):
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message = _("User %(uid)s is already a member of "
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"the group %(group_dn)s")
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class ProjectExists(Duplicate):
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message = _("Project %(project)s already exists.")
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class InstanceExists(Duplicate):
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message = _("Instance %(name)s already exists.")
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class MigrationError(NovaException):
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message = _("Migration error") + ": %(reason)s"
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class MalformedRequestBody(NovaException):
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message = _("Malformed message body: %(reason)s")
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class PasteConfigNotFound(NotFound):
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message = _("Could not find paste config at %(path)s")
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class PasteAppNotFound(NotFound):
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message = _("Could not load paste app '%(name)s' from %(path)s")
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