Marcellin Fom Tchassem
c52442a01f
It has been reported that the exception LiveMigrationWithOldNovaNotSafe is not useful since the change I5651fb7ba95f38e2e2f8a48a98ff04072c6bb885. This patch will cleanup the definition and the occurences of that exception. Change-Id: I7a5b677904d83104c4f5367b0245eebd422e2338 Closes-Bug: #1550282
129 lines
5.3 KiB
Python
129 lines
5.3 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_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
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from nova.api.openstack import extensions
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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 import compute
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from nova import exception
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ALIAS = "os-migrate-server"
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authorize = extensions.os_compute_authorizer(ALIAS)
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class MigrateServerController(wsgi.Controller):
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def __init__(self, *args, **kwargs):
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super(MigrateServerController, self).__init__(*args, **kwargs)
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self.compute_api = compute.API(skip_policy_check=True)
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@wsgi.response(202)
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@extensions.expected_errors((400, 403, 404, 409))
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@wsgi.action('migrate')
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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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authorize(context, action='migrate')
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instance = common.get_instance(self.compute_api, context, id)
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try:
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self.compute_api.resize(req.environ['nova.context'], instance)
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except (exception.TooManyInstances, exception.QuotaError) as e:
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raise exc.HTTPForbidden(explanation=e.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 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 exception.NoValidHost as e:
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raise exc.HTTPBadRequest(explanation=e.format_message())
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@wsgi.response(202)
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@extensions.expected_errors((400, 404, 409))
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@wsgi.action('os-migrateLive')
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@validation.schema(migrate_server.migrate_live, "2.1", "2.24")
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@validation.schema(migrate_server.migrate_live_v2_25, "2.25")
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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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authorize(context, action='migrate_live')
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host = body["os-migrateLive"]["host"]
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block_migration = body["os-migrateLive"]["block_migration"]
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if api_version_request.is_supported(req, min_version='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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instance = common.get_instance(self.compute_api, context, id)
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self.compute_api.live_migrate(context, instance, block_migration,
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disk_over_commit, host)
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except exception.InstanceUnknownCell as e:
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raise exc.HTTPNotFound(explanation=e.format_message())
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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.LiveMigrationWithOldNovaNotSupported) as ex:
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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 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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class MigrateServer(extensions.V21APIExtensionBase):
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"""Enable migrate and live-migrate server actions."""
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name = "MigrateServer"
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alias = ALIAS
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version = 1
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def get_controller_extensions(self):
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controller = MigrateServerController()
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extension = extensions.ControllerExtension(self, 'servers', controller)
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return [extension]
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def get_resources(self):
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return []
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