c4848cd472
Quota check for create/delete/resize volume Quota is implemented as a decorator, which can be easy enabled and disabled if wanted. The quota feature uses a reservation system that reserves resources prior to usage. BP https://blueprints.launchpad.net/reddwarf/+spec/quotas Change-Id: I5df82c8f1d7b40311b5d5d7301992607f98e9b2a
216 lines
5.3 KiB
Python
216 lines
5.3 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2011 OpenStack LLC.
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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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"""I totally stole most of this from melange, thx guys!!!"""
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from reddwarf.openstack.common import log as logging
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from reddwarf.openstack.common import exception as openstack_exception
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from reddwarf.openstack.common import processutils
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from reddwarf.openstack.common.gettextutils import _
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from webob import exc
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ClientConnectionError = openstack_exception.ClientConnectionError
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ProcessExecutionError = processutils.ProcessExecutionError
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DatabaseMigrationError = openstack_exception.DatabaseMigrationError
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LOG = logging.getLogger(__name__)
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wrap_exception = openstack_exception.wrap_exception
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class ReddwarfError(openstack_exception.OpenstackException):
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"""Base exception that all custom reddwarf app exceptions inherit from."""
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internal_message = None
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def __init__(self, message=None, **kwargs):
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if message is not None:
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self.message = message
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if self.internal_message is not None:
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try:
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LOG.error(self.internal_message % kwargs)
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except Exception:
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LOG.error(self.internal_message)
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super(ReddwarfError, self).__init__(**kwargs)
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class DBConstraintError(ReddwarfError):
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message = _("Failed to save %(model_name)s because: %(error)s")
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class InvalidRPCConnectionReuse(ReddwarfError):
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message = _("Invalid RPC Connection Reuse")
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class NotFound(ReddwarfError):
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message = _("Resource %(uuid)s cannot be found")
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class FlavorNotFound(ReddwarfError):
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message = _("Resource %(uuid)s cannot be found")
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class UserNotFound(NotFound):
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message = _("User %(uuid)s cannot be found on the instance.")
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class DatabaseNotFound(NotFound):
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message = _("Database %(uuid)s cannot be found on the instance.")
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class ComputeInstanceNotFound(NotFound):
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internal_message = _("Cannot find compute instance %(server_id)s for "
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"instance %(instance_id)s.")
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message = _("Resource %(instance_id)s can not be retrieved.")
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class DnsRecordNotFound(NotFound):
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message = _("DnsRecord with name= %(name)s not found.")
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class OverLimit(ReddwarfError):
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internal_message = _("The server rejected the request due to its size or "
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"rate.")
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class QuotaExceeded(ReddwarfError):
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message = _("Quota exceeded for resources: %(overs)s")
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class VolumeQuotaExceeded(QuotaExceeded):
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message = _("Instance volume quota exceeded.")
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class GuestError(ReddwarfError):
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message = _("An error occurred communicating with the guest: "
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"%(original_message)s.")
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class GuestTimeout(ReddwarfError):
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message = _("Timeout trying to connect to the Guest Agent.")
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class BadRequest(ReddwarfError):
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message = _("The server could not comply with the request since it is "
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"either malformed or otherwise incorrect.")
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class MissingKey(BadRequest):
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message = _("Required element/key - %(key)s was not specified")
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class DatabaseAlreadyExists(BadRequest):
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message = _('A database with the name "%(name)s" already exists.')
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class UserAlreadyExists(BadRequest):
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message = _('A user with the name "%(name)s" already exists.')
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class UnprocessableEntity(ReddwarfError):
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message = _("Unable to process the contained request")
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class CannotResizeToSameSize(ReddwarfError):
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message = _("When resizing, instances must change size!")
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class VolumeAttachmentsNotFound(NotFound):
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message = _("Cannot find the volumes attached to compute "
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"instance %(server_id)")
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class VolumeCreationFailure(ReddwarfError):
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message = _("Failed to create a volume in Nova.")
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class TaskManagerError(ReddwarfError):
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message = _("An error occurred communicating with the task manager: "
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"%(original_message)s.")
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class BadValue(ReddwarfError):
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message = _("Value could not be converted: %(msg)s")
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class PollTimeOut(ReddwarfError):
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message = _("Polling request timed out.")
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class Forbidden(ReddwarfError):
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message = _("User does not have admin privileges.")
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class InvalidModelError(ReddwarfError):
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message = _("The following values are invalid: %(errors)s")
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class ModelNotFoundError(NotFound):
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message = _("Not Found")
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class UpdateGuestError(ReddwarfError):
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message = _("Failed to update instances")
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class ConfigNotFound(NotFound):
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message = _("Config file not found")
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class PasteAppNotFound(NotFound):
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message = _("Paste app not found.")
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class QuotaNotFound(NotFound):
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message = _("Quota could not be found")
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class TenantQuotaNotFound(QuotaNotFound):
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message = _("Quota for tenant %(tenant_id)s could not be found.")
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class QuotaResourceUnknown(QuotaNotFound):
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message = _("Unknown quota resources %(unknown)s.")
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