trove/trove/datastore/service.py

126 lines
5.3 KiB
Python

# Copyright 2013 OpenStack Foundation
# Copyright 2013 Rackspace Hosting
# Copyright 2013 Hewlett-Packard Development Company, L.P.
# 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_log import log as logging
from trove.common import exception
from trove.common import policy
from trove.common import wsgi
from trove.datastore import models, views
from trove.flavor import views as flavor_views
from trove.volume_type import views as volume_type_view
LOG = logging.getLogger(__name__)
class DatastoreController(wsgi.Controller):
@classmethod
def authorize_request(cls, req, rule_name):
"""Datastores are not owned by any particular tenant so we only check
the current tenant is allowed to perform the action.
"""
context = req.environ[wsgi.CONTEXT_KEY]
policy.authorize_on_tenant(context, 'datastore:%s' % rule_name)
def show(self, req, tenant_id, id):
self.authorize_request(req, 'show')
datastore = models.Datastore.load(id)
datastore_versions = (models.DatastoreVersions.load(datastore.id))
return wsgi.Result(views.
DatastoreView(datastore, datastore_versions,
req).data(), 200)
def index(self, req, tenant_id):
self.authorize_request(req, 'index')
context = req.environ[wsgi.CONTEXT_KEY]
only_active = True
if context.is_admin:
only_active = False
datastores = models.Datastores.load(only_active)
datastores_versions = models.DatastoreVersions.load_all(only_active)
return wsgi.Result(views.
DatastoresView(datastores, datastores_versions,
req).data(), 200)
def version_show(self, req, tenant_id, datastore, id):
self.authorize_request(req, 'version_show')
datastore = models.Datastore.load(datastore)
datastore_version = models.DatastoreVersion.load(datastore, id)
return wsgi.Result(views.DatastoreVersionView(datastore_version,
req).data(), 200)
def version_show_by_uuid(self, req, tenant_id, uuid):
self.authorize_request(req, 'version_show_by_uuid')
datastore_version = models.DatastoreVersion.load_by_uuid(uuid)
return wsgi.Result(views.DatastoreVersionView(datastore_version,
req).data(), 200)
def version_index(self, req, tenant_id, datastore):
self.authorize_request(req, 'version_index')
context = req.environ[wsgi.CONTEXT_KEY]
only_active = True
if context.is_admin:
only_active = False
datastore_versions = models.DatastoreVersions.load(datastore,
only_active)
return wsgi.Result(views.
DatastoreVersionsView(datastore_versions,
req).data(), 200)
def list_associated_flavors(self, req, tenant_id, datastore,
version_id):
"""
All nova flavors are returned for a datastore-version unless
one or more entries are found in datastore_version_metadata,
in which case only those are returned.
"""
self.authorize_request(req, 'list_associated_flavors')
context = req.environ[wsgi.CONTEXT_KEY]
flavors = (models.DatastoreVersionMetadata.
list_datastore_version_flavor_associations(
context, datastore, version_id))
return wsgi.Result(flavor_views.FlavorsView(flavors, req).data(), 200)
def list_associated_volume_types(self, req, tenant_id, datastore,
version_id):
"""
Return all known volume types if no restrictions have been
established in datastore_version_metadata, otherwise return
that restricted set.
"""
context = req.environ[wsgi.CONTEXT_KEY]
volume_types = (models.DatastoreVersionMetadata.
allowed_datastore_version_volume_types(
context, datastore, version_id))
return wsgi.Result(volume_type_view.VolumeTypesView(
volume_types, req).data(), 200)
def delete(self, req, tenant_id, id):
"""Remove an existing datastore."""
self.authorize_request(req, 'delete')
ds_versions = models.DatastoreVersions.load(id, only_active=False)
if len(ds_versions.db_info.all()) > 0:
raise exception.DatastoreVersionsExist(datastore=id)
LOG.info("Deleting datastore %s", id)
datastore = models.Datastore.load(id)
datastore.delete()
return wsgi.Result(None, 202)