cinder/cinder/api/v3/workers.py

110 lines
4.4 KiB
Python

# Copyright (c) 2016 Red Hat, Inc.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from oslo_utils import strutils
from oslo_utils import timeutils
from six.moves import http_client
from cinder.api import microversions as mv
from cinder.api.openstack import wsgi
from cinder.api.schemas import workers
from cinder.api.v3.views import workers as workers_view
from cinder.api import validation
from cinder import db
from cinder import exception
from cinder.i18n import _
from cinder import objects
from cinder.objects import cleanable
from cinder.policies import workers as policy
from cinder.scheduler import rpcapi as sch_rpc
from cinder import utils
class WorkerController(wsgi.Controller):
def __init__(self, *args, **kwargs):
self.sch_api = sch_rpc.SchedulerAPI()
@wsgi.Controller.api_version(mv.WORKERS_CLEANUP)
@wsgi.response(http_client.ACCEPTED)
@validation.schema(workers.cleanup)
def cleanup(self, req, body=None):
"""Do the cleanup on resources from a specific service/host/node."""
# Let the wsgi middleware convert NotAuthorized exceptions
ctxt = req.environ['cinder.context']
ctxt.authorize(policy.CLEAN_POLICY)
body = body or {}
for boolean in ('disabled', 'is_up'):
if body.get(boolean) is not None:
body[boolean] = strutils.bool_from_string(body[boolean])
resource_type = body.get('resource_type')
if resource_type:
resource_type = resource_type.title()
types = cleanable.CinderCleanableObject.cleanable_resource_types
if resource_type not in types:
valid_types = utils.build_or_str(types)
msg = _('Resource type %(resource_type)s not valid,'
' must be %(valid_types)s')
msg = msg % {"resource_type": resource_type,
"valid_types": valid_types}
raise exception.InvalidInput(reason=msg)
body['resource_type'] = resource_type
resource_id = body.get('resource_id')
if resource_id:
# If we have the resource type but we don't have where it is
# located, we get it from the DB to limit the distribution of the
# request by the scheduler, otherwise it will be distributed to all
# the services.
location_keys = {'service_id', 'cluster_name', 'host'}
if not location_keys.intersection(body):
workers = db.worker_get_all(ctxt, resource_id=resource_id,
binary=body.get('binary'),
resource_type=resource_type)
if len(workers) == 0:
msg = (_('There is no resource with UUID %s pending '
'cleanup.'), resource_id)
raise exception.InvalidInput(reason=msg)
if len(workers) > 1:
msg = (_('There are multiple resources with UUID %s '
'pending cleanup. Please be more specific.'),
resource_id)
raise exception.InvalidInput(reason=msg)
worker = workers[0]
body.update(service_id=worker.service_id,
resource_type=worker.resource_type)
body['until'] = timeutils.utcnow()
# NOTE(geguileo): If is_up is not specified in the request
# CleanupRequest's default will be used (False)
cleanup_request = objects.CleanupRequest(**body)
cleaning, unavailable = self.sch_api.work_cleanup(ctxt,
cleanup_request)
return {
'cleaning': workers_view.ViewBuilder.service_list(cleaning),
'unavailable': workers_view.ViewBuilder.service_list(unavailable),
}
def create_resource():
return wsgi.Resource(WorkerController())