184 lines
7.0 KiB
Python
184 lines
7.0 KiB
Python
# Copyright 2013 NetApp
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# Copyright 2015 EMC Corporation.
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# All Rights Reserved.
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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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"""The share snapshots api."""
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from oslo_log import log
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import six
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import webob
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from webob import exc
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from manila.api.openstack import wsgi
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from manila.api.v1 import share_snapshots
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from manila.api.views import share_snapshots as snapshot_views
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from manila.common import constants
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from manila import exception
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from manila.i18n import _, _LI
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from manila import share
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LOG = log.getLogger(__name__)
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class ShareSnapshotsController(share_snapshots.ShareSnapshotMixin,
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wsgi.Controller, wsgi.AdminActionsMixin):
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"""The Share Snapshots API V2 controller for the OpenStack API."""
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resource_name = 'share_snapshot'
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_view_builder_class = snapshot_views.ViewBuilder
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def __init__(self):
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super(ShareSnapshotsController, self).__init__()
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self.share_api = share.API()
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@wsgi.Controller.authorize('unmanage_snapshot')
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def _unmanage(self, req, id, body=None):
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"""Unmanage a share snapshot."""
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context = req.environ['manila.context']
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LOG.info(_LI("Unmanage share snapshot with id: %s."), id)
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try:
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snapshot = self.share_api.get_snapshot(context, id)
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share = self.share_api.get(context, snapshot['share_id'])
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if share.get('share_server_id'):
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msg = _("Operation 'unmanage_snapshot' is not supported for "
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"snapshots of shares that are created with share"
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" servers (created with share-networks).")
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raise exc.HTTPForbidden(explanation=msg)
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elif share.get('has_replicas'):
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msg = _("Share %s has replicas. Snapshots of this share "
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"cannot currently be unmanaged until all replicas "
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"are removed.") % share['id']
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raise exc.HTTPConflict(explanation=msg)
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elif snapshot['status'] in constants.TRANSITIONAL_STATUSES:
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msg = _("Snapshot with transitional state cannot be "
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"unmanaged. Snapshot '%(s_id)s' is in '%(state)s' "
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"state.") % {'state': snapshot['status'],
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's_id': snapshot['id']}
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raise exc.HTTPForbidden(explanation=msg)
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self.share_api.unmanage_snapshot(context, snapshot, share['host'])
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except (exception.ShareSnapshotNotFound, exception.ShareNotFound) as e:
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raise exc.HTTPNotFound(explanation=six.text_type(e))
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return webob.Response(status_int=202)
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@wsgi.Controller.authorize('manage_snapshot')
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def _manage(self, req, body):
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"""Instruct Manila to manage an existing snapshot.
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Required HTTP Body:
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{
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"snapshot":
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{
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"share_id": <Manila share id>,
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"provider_location": <A string parameter that identifies the
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snapshot on the backend>
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}
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}
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Optional elements in 'snapshot' are:
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name A name for the new snapshot.
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description A description for the new snapshot.
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driver_options Driver specific dicts for the existing snapshot.
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"""
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context = req.environ['manila.context']
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snapshot_data = self._validate_manage_parameters(context, body)
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# NOTE(vponomaryov): compatibility actions are required between API and
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# DB layers for 'name' and 'description' API params that are
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# represented in DB as 'display_name' and 'display_description'
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# appropriately.
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name = snapshot_data.get('display_name',
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snapshot_data.get('name'))
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description = snapshot_data.get(
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'display_description', snapshot_data.get('description'))
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snapshot = {
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'share_id': snapshot_data['share_id'],
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'provider_location': snapshot_data['provider_location'],
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'display_name': name,
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'display_description': description,
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}
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driver_options = snapshot_data.get('driver_options', {})
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try:
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snapshot_ref = self.share_api.manage_snapshot(context, snapshot,
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driver_options)
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except (exception.ShareNotFound, exception.ShareSnapshotNotFound) as e:
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raise exc.HTTPNotFound(explanation=six.text_type(e))
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except (exception.InvalidShare,
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exception.ManageInvalidShareSnapshot) as e:
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raise exc.HTTPConflict(explanation=six.text_type(e))
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return self._view_builder.detail(req, snapshot_ref)
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def _validate_manage_parameters(self, context, body):
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if not (body and self.is_valid_body(body, 'snapshot')):
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msg = _("Snapshot entity not found in request body.")
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raise exc.HTTPUnprocessableEntity(explanation=msg)
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required_parameters = ('share_id', 'provider_location')
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data = body['snapshot']
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for parameter in required_parameters:
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if parameter not in data:
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msg = _("Required parameter %s not found.") % parameter
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raise exc.HTTPUnprocessableEntity(explanation=msg)
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if not data.get(parameter):
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msg = _("Required parameter %s is empty.") % parameter
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raise exc.HTTPUnprocessableEntity(explanation=msg)
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return data
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@wsgi.Controller.api_version('2.0', '2.6')
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@wsgi.action('os-reset_status')
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def snapshot_reset_status_legacy(self, req, id, body):
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return self._reset_status(req, id, body)
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@wsgi.Controller.api_version('2.7')
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@wsgi.action('reset_status')
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def snapshot_reset_status(self, req, id, body):
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return self._reset_status(req, id, body)
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@wsgi.Controller.api_version('2.0', '2.6')
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@wsgi.action('os-force_delete')
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def snapshot_force_delete_legacy(self, req, id, body):
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return self._force_delete(req, id, body)
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@wsgi.Controller.api_version('2.7')
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@wsgi.action('force_delete')
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def snapshot_force_delete(self, req, id, body):
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return self._force_delete(req, id, body)
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@wsgi.Controller.api_version('2.12')
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@wsgi.response(202)
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def manage(self, req, body):
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return self._manage(req, body)
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@wsgi.Controller.api_version('2.12')
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@wsgi.action('unmanage')
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def unmanage(self, req, id, body=None):
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return self._unmanage(req, id, body)
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def create_resource():
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return wsgi.Resource(ShareSnapshotsController())
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