# # 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. """The volumes V3 api.""" from oslo_log import log as logging from oslo_log import versionutils from oslo_utils import uuidutils import six from six.moves import http_client import webob from webob import exc from cinder.api import common from cinder.api import microversions as mv from cinder.api.openstack import wsgi from cinder.api.v2 import volumes as volumes_v2 from cinder.api.v3.views import volumes as volume_views_v3 from cinder.backup import api as backup_api from cinder import exception from cinder import group as group_api from cinder.i18n import _ from cinder.image import glance from cinder import objects from cinder.policies import volumes as policy from cinder import utils LOG = logging.getLogger(__name__) class VolumeController(volumes_v2.VolumeController): """The Volumes API controller for the OpenStack API V3.""" _view_builder_class = volume_views_v3.ViewBuilder def __init__(self, ext_mgr): self.group_api = group_api.API() self.backup_api = backup_api.API() super(VolumeController, self).__init__(ext_mgr) def delete(self, req, id): """Delete a volume.""" context = req.environ['cinder.context'] req_version = req.api_version_request cascade = utils.get_bool_param('cascade', req.params) force = False params = "" if req_version.matches(mv.VOLUME_LIST_BOOTABLE): force = utils.get_bool_param('force', req.params) if cascade or force: params = "(cascade: %(c)s, force: %(f)s)" % {'c': cascade, 'f': force} LOG.info("Delete volume with id: %(id)s %(params)s", {'id': id, 'params': params}, context=context) volume = self.volume_api.get(context, id) if force: context.authorize(policy.FORCE_DELETE_POLICY, target_obj=volume) self.volume_api.delete(context, volume, cascade=cascade, force=force) return webob.Response(status_int=202) @common.process_general_filtering('volume') def _process_volume_filtering(self, context=None, filters=None, req_version=None): if req_version.matches(None, mv.MESSAGES): filters.pop('glance_metadata', None) if req_version.matches(None, mv.BACKUP_UPDATE): filters.pop('group_id', None) utils.remove_invalid_filter_options( context, filters, self._get_volume_filter_options()) def _get_volumes(self, req, is_detail): """Returns a list of volumes, transformed through view builder.""" context = req.environ['cinder.context'] req_version = req.api_version_request params = req.params.copy() marker, limit, offset = common.get_pagination_params(params) sort_keys, sort_dirs = common.get_sort_params(params) filters = params show_count = False if req_version.matches( mv.SUPPORT_COUNT_INFO) and 'with_count' in filters: show_count = utils.get_bool_param('with_count', filters) filters.pop('with_count') self._process_volume_filtering(context=context, filters=filters, req_version=req_version) # NOTE(thingee): v2 API allows name instead of display_name if 'name' in sort_keys: sort_keys[sort_keys.index('name')] = 'display_name' if 'name' in filters: filters['display_name'] = filters.pop('name') strict = req.api_version_request.matches( mv.VOLUME_LIST_BOOTABLE, None) self.volume_api.check_volume_filters(filters, strict) volumes = self.volume_api.get_all(context, marker, limit, sort_keys=sort_keys, sort_dirs=sort_dirs, filters=filters.copy(), viewable_admin_meta=True, offset=offset) total_count = None if show_count: total_count = self.volume_api.calculate_resource_count( context, 'volume', filters) for volume in volumes: utils.add_visible_admin_metadata(volume) req.cache_db_volumes(volumes.objects) if is_detail: volumes = self._view_builder.detail_list( req, volumes, total_count) else: volumes = self._view_builder.summary_list( req, volumes, total_count) return volumes @wsgi.Controller.api_version(mv.VOLUME_SUMMARY) def summary(self, req): """Return summary of volumes.""" view_builder_v3 = volume_views_v3.ViewBuilder() context = req.environ['cinder.context'] filters = req.params.copy() utils.remove_invalid_filter_options(context, filters, self._get_volume_filter_options()) num_vols, sum_size, metadata = self.volume_api.get_volume_summary( context, filters=filters) req_version = req.api_version_request if req_version.matches(mv.VOLUME_SUMMARY_METADATA): all_distinct_metadata = metadata else: all_distinct_metadata = None return view_builder_v3.quick_summary(num_vols, int(sum_size), all_distinct_metadata) @wsgi.response(http_client.ACCEPTED) @wsgi.Controller.api_version(mv.VOLUME_REVERT) @wsgi.action('revert') def revert(self, req, id, body): """revert a volume to a snapshot""" context = req.environ['cinder.context'] self.assert_valid_body(body, 'revert') snapshot_id = body['revert'].get('snapshot_id') volume = self.volume_api.get_volume(context, id) try: l_snap = volume.get_latest_snapshot() except exception.VolumeSnapshotNotFound: msg = _("Volume %s doesn't have any snapshots.") raise exc.HTTPBadRequest(explanation=msg % volume.id) # Ensure volume and snapshot match. if snapshot_id is None or snapshot_id != l_snap.id: msg = _("Specified snapshot %(s_id)s is None or not " "the latest one of volume %(v_id)s.") raise exc.HTTPBadRequest(explanation=msg % {'s_id': snapshot_id, 'v_id': volume.id}) try: msg = 'Reverting volume %(v_id)s to snapshot %(s_id)s.' LOG.info(msg, {'v_id': volume.id, 's_id': l_snap.id}) self.volume_api.revert_to_snapshot(context, volume, l_snap) except (exception.InvalidVolume, exception.InvalidSnapshot) as e: raise exc.HTTPConflict(explanation=six.text_type(e)) except exception.VolumeSizeExceedsAvailableQuota as e: raise exc.HTTPForbidden(explanation=six.text_type(e)) def _get_image_snapshot(self, context, image_uuid): image_snapshot = None if image_uuid: image_service = glance.get_default_image_service() image_meta = image_service.show(context, image_uuid) if image_meta is not None: bdms = image_meta.get('properties', {}).get( 'block_device_mapping', []) if bdms: boot_bdm = [bdm for bdm in bdms if ( bdm.get('source_type') == 'snapshot' and bdm.get('boot_index') == 0)] if boot_bdm: try: image_snapshot = self.volume_api.get_snapshot( context, boot_bdm[0].get('snapshot_id')) return image_snapshot except exception.NotFound: explanation = _( 'Nova specific image is found, but boot ' 'volume snapshot id:%s not found.' ) % boot_bdm[0].get('snapshot_id') raise exc.HTTPNotFound(explanation=explanation) return image_snapshot @wsgi.response(http_client.ACCEPTED) def create(self, req, body): """Creates a new volume. :param req: the request :param body: the request body :returns: dict -- the new volume dictionary :raises HTTPNotFound, HTTPBadRequest: """ self.assert_valid_body(body, 'volume') LOG.debug('Create volume request body: %s', body) context = req.environ['cinder.context'] req_version = req.api_version_request # Remove group_id from body if max version is less than GROUP_VOLUME. if req_version.matches(None, mv.get_prior_version(mv.GROUP_VOLUME)): # NOTE(xyang): The group_id is from a group created with a # group_type. So with this group_id, we've got a group_type # for this volume. Also if group_id is passed in, that means # we already know which backend is hosting the group and the # volume will be created on the same backend as well. So it # won't go through the scheduler again if a group_id is # passed in. try: body.get('volume', {}).pop('group_id', None) except AttributeError: msg = (_("Invalid body provided for creating volume. " "Request API version: %s.") % req_version) raise exc.HTTPBadRequest(explanation=msg) volume = body['volume'] kwargs = {} self.validate_name_and_description(volume) # Check up front for legacy replication parameters to quick fail source_replica = volume.get('source_replica') if source_replica: msg = _("Creating a volume from a replica source was part of the " "replication v1 implementation which is no longer " "available.") raise exception.InvalidInput(reason=msg) # NOTE(thingee): v2 API allows name instead of display_name if 'name' in volume: volume['display_name'] = volume.pop('name') # NOTE(thingee): v2 API allows description instead of # display_description if 'description' in volume: volume['display_description'] = volume.pop('description') if 'image_id' in volume: volume['imageRef'] = volume.pop('image_id') req_volume_type = volume.get('volume_type', None) if req_volume_type: # Not found exception will be handled at the wsgi level kwargs['volume_type'] = ( objects.VolumeType.get_by_name_or_id(context, req_volume_type)) kwargs['metadata'] = volume.get('metadata', None) snapshot_id = volume.get('snapshot_id') if snapshot_id is not None: if not uuidutils.is_uuid_like(snapshot_id): msg = _("Snapshot ID must be in UUID form.") raise exc.HTTPBadRequest(explanation=msg) # Not found exception will be handled at the wsgi level kwargs['snapshot'] = self.volume_api.get_snapshot(context, snapshot_id) else: kwargs['snapshot'] = None source_volid = volume.get('source_volid') if source_volid is not None: if not uuidutils.is_uuid_like(source_volid): msg = _("Source volume ID '%s' must be a " "valid UUID.") % source_volid raise exc.HTTPBadRequest(explanation=msg) # Not found exception will be handled at the wsgi level kwargs['source_volume'] = ( self.volume_api.get_volume(context, source_volid)) else: kwargs['source_volume'] = None kwargs['group'] = None kwargs['consistencygroup'] = None consistencygroup_id = volume.get('consistencygroup_id') if consistencygroup_id is not None: if not uuidutils.is_uuid_like(consistencygroup_id): msg = _("Consistency group ID '%s' must be a " "valid UUID.") % consistencygroup_id raise exc.HTTPBadRequest(explanation=msg) # Not found exception will be handled at the wsgi level kwargs['group'] = self.group_api.get(context, consistencygroup_id) # Get group_id if volume is in a group. group_id = volume.get('group_id') if group_id is not None: # Not found exception will be handled at the wsgi level kwargs['group'] = self.group_api.get(context, group_id) if self.ext_mgr.is_loaded('os-image-create'): image_ref = volume.get('imageRef') if image_ref is not None: image_uuid = self._image_uuid_from_ref(image_ref, context) image_snapshot = self._get_image_snapshot(context, image_uuid) if (req_version.matches(mv.get_api_version( mv.SUPPORT_NOVA_IMAGE)) and image_snapshot): kwargs['snapshot'] = image_snapshot else: kwargs['image_id'] = image_uuid # Add backup if min version is greater than or equal # to VOLUME_CREATE_FROM_BACKUP. if req_version.matches(mv.VOLUME_CREATE_FROM_BACKUP, None): backup_id = volume.get('backup_id') if backup_id: if not uuidutils.is_uuid_like(backup_id): msg = _("Backup ID must be in UUID form.") raise exc.HTTPBadRequest(explanation=msg) kwargs['backup'] = self.backup_api.get(context, backup_id=backup_id) else: kwargs['backup'] = None size = volume.get('size', None) if size is None and kwargs['snapshot'] is not None: size = kwargs['snapshot']['volume_size'] elif size is None and kwargs['source_volume'] is not None: size = kwargs['source_volume']['size'] elif size is None and kwargs.get('backup') is not None: size = kwargs['backup']['size'] LOG.info("Create volume of %s GB", size) kwargs['availability_zone'] = volume.get('availability_zone', None) kwargs['scheduler_hints'] = volume.get('scheduler_hints', None) multiattach = volume.get('multiattach', False) kwargs['multiattach'] = multiattach if multiattach: msg = ("The option 'multiattach' " "is deprecated and will be removed in a future " "release. The default behavior going forward will " "be to specify multiattach enabled volume types.") versionutils.report_deprecated_feature(LOG, msg) new_volume = self.volume_api.create(context, size, volume.get('display_name'), volume.get('display_description'), **kwargs) retval = self._view_builder.detail(req, new_volume) return retval def create_resource(ext_mgr): return wsgi.Resource(VolumeController(ext_mgr))