melanie witt
2bdf12535c
This prepares for a service version bump and adds a minimum service version check in the API to reject live migration requests for vTPM instances until the entire cloud is upgraded to the new version. The actual service version bump will be included in a later patch that implements vTPM live migration. Related to blueprint vtpm-live-migration Change-Id: I7daef8037385a4077dc0a78f03ae4b34a57560b7 Signed-off-by: melanie witt <melwittt@gmail.com>
185 lines
7.9 KiB
Python
185 lines
7.9 KiB
Python
# Copyright 2011 OpenStack Foundation
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# Copyright 2013 IBM Corp.
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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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from oslo_log import log as logging
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from oslo_utils import excutils
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from oslo_utils import strutils
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from webob import exc
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from nova.api.openstack import api_version_request
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from nova.api.openstack import common
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from nova.api.openstack.compute.schemas import migrate_server as schema
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from nova.api.openstack import wsgi
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from nova.api import validation
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from nova.compute import api as compute
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from nova import exception
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from nova.i18n import _
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from nova.policies import migrate_server as ms_policies
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LOG = logging.getLogger(__name__)
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@validation.validated
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class MigrateServerController(wsgi.Controller):
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def __init__(self):
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super(MigrateServerController, self).__init__()
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self.compute_api = compute.API()
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@wsgi.response(202)
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@wsgi.expected_errors((400, 403, 404, 409))
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@wsgi.action('migrate')
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@validation.schema(schema.migrate, "2.56")
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@validation.response_body_schema(schema.migrate_response)
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def _migrate(self, req, id, body):
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"""Permit admins to migrate a server to a new host."""
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context = req.environ['nova.context']
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instance = common.get_instance(self.compute_api, context, id,
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expected_attrs=['flavor', 'services'])
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host_name = None
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if (
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api_version_request.is_supported(req, '2.56') and
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body['migrate'] is not None
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):
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host_name = body['migrate'].get('host')
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if host_name:
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context.can(ms_policies.POLICY_ROOT % 'migrate:host',
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target={'project_id': instance.project_id})
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else:
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context.can(ms_policies.POLICY_ROOT % 'migrate',
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target={'project_id': instance.project_id})
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try:
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self.compute_api.resize(req.environ['nova.context'], instance,
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host_name=host_name)
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except exception.OverQuota as e:
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raise exc.HTTPForbidden(explanation=e.format_message())
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except (
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exception.InstanceIsLocked,
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exception.InstanceNotReady,
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exception.ServiceUnavailable,
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) as e:
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raise exc.HTTPConflict(explanation=e.format_message())
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except exception.InstanceInvalidState as state_error:
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common.raise_http_conflict_for_instance_invalid_state(state_error,
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'migrate', id)
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except exception.InstanceNotFound as e:
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raise exc.HTTPNotFound(explanation=e.format_message())
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except (
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exception.ComputeHostNotFound,
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exception.CannotMigrateToSameHost,
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exception.ForbiddenPortsWithAccelerator,
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exception.ExtendedResourceRequestOldCompute,
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) as e:
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raise exc.HTTPBadRequest(explanation=e.format_message())
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except (
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exception.ForbiddenSharesNotSupported,
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exception.ForbiddenWithShare,
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) as e:
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raise exc.HTTPConflict(explanation=e.format_message())
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@wsgi.response(202)
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@wsgi.expected_errors((400, 403, 404, 409))
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@wsgi.action('os-migrateLive')
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@validation.schema(schema.migrate_live, "2.0", "2.24")
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@validation.schema(schema.migrate_live_v2_25, "2.25", "2.29")
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@validation.schema(schema.migrate_live_v2_30, "2.30", "2.67")
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@validation.schema(schema.migrate_live_v2_68, "2.68")
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@validation.response_body_schema(schema.migrate_live_response)
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def _migrate_live(self, req, id, body):
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"""Permit admins to (live) migrate a server to a new host."""
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context = req.environ["nova.context"]
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# NOTE(stephenfin): we need 'numa_topology' because of the
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# 'LiveMigrationTask._check_instance_has_no_numa' check in the
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# conductor
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instance = common.get_instance(self.compute_api, context, id,
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expected_attrs=['numa_topology'])
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host = body["os-migrateLive"]["host"]
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if host:
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context.can(ms_policies.POLICY_ROOT % 'migrate_live:host',
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target={'project_id': instance.project_id})
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else:
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context.can(ms_policies.POLICY_ROOT % 'migrate_live',
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target={'project_id': instance.project_id})
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block_migration = body["os-migrateLive"]["block_migration"]
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force = None
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async_ = api_version_request.is_supported(req, '2.34')
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if api_version_request.is_supported(req, '2.30'):
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force = self._get_force_param_for_live_migration(body, host)
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if api_version_request.is_supported(req, '2.25'):
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if block_migration == 'auto':
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block_migration = None
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else:
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block_migration = strutils.bool_from_string(block_migration,
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strict=True)
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disk_over_commit = None
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else:
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disk_over_commit = body["os-migrateLive"]["disk_over_commit"]
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block_migration = strutils.bool_from_string(block_migration,
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strict=True)
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disk_over_commit = strutils.bool_from_string(disk_over_commit,
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strict=True)
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try:
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self.compute_api.live_migrate(context, instance, block_migration,
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disk_over_commit, host, force,
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async_)
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except (exception.NoValidHost,
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exception.ComputeServiceUnavailable,
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exception.InvalidHypervisorType,
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exception.InvalidCPUInfo,
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exception.UnableToMigrateToSelf,
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exception.DestinationHypervisorTooOld,
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exception.InvalidLocalStorage,
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exception.InvalidSharedStorage,
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exception.HypervisorUnavailable,
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exception.MigrationPreCheckError,
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exception.ForbiddenPortsWithAccelerator) as ex:
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if async_:
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with excutils.save_and_reraise_exception():
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LOG.error("Unexpected exception received from "
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"conductor during pre-live-migration checks "
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"'%(ex)s'", {'ex': ex})
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else:
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raise exc.HTTPBadRequest(explanation=ex.format_message())
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except exception.InstanceIsLocked as e:
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raise exc.HTTPConflict(explanation=e.format_message())
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except (
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exception.ComputeHostNotFound,
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exception.ExtendedResourceRequestOldCompute,
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exception.VTPMOldCompute,
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)as e:
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raise exc.HTTPBadRequest(explanation=e.format_message())
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except exception.InstanceInvalidState as state_error:
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common.raise_http_conflict_for_instance_invalid_state(state_error,
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'os-migrateLive', id)
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except (
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exception.ForbiddenSharesNotSupported,
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exception.ForbiddenWithShare,
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) as e:
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raise exc.HTTPConflict(explanation=e.format_message())
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def _get_force_param_for_live_migration(self, body, host):
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force = body["os-migrateLive"].get("force", False)
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force = strutils.bool_from_string(force, strict=True)
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if force is True and not host:
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message = _("Can't force to a non-provided destination")
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raise exc.HTTPBadRequest(explanation=message)
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return force
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