226 lines
9.1 KiB
Python
226 lines
9.1 KiB
Python
# Copyright (C) 2016 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 group_snapshots API."""
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from http import client as http_client
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from oslo_log import log as logging
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import webob
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from webob import exc
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from cinder.api import common
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from cinder.api import microversions as mv
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from cinder.api.openstack import wsgi
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from cinder.api.schemas import group_snapshots as snapshot
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from cinder.api.v3.views import group_snapshots as group_snapshot_views
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from cinder.api import validation
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from cinder import exception
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from cinder import group as group_api
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from cinder.i18n import _
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from cinder import rpc
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from cinder.volume import group_types
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LOG = logging.getLogger(__name__)
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class GroupSnapshotsController(wsgi.Controller):
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"""The group_snapshots API controller for the OpenStack API."""
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_view_builder_class = group_snapshot_views.ViewBuilder
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def __init__(self):
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self.group_snapshot_api = group_api.API()
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super(GroupSnapshotsController, self).__init__()
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def _check_default_cgsnapshot_type(self, group_type_id):
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if group_types.is_default_cgsnapshot_type(group_type_id):
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msg = (_("Group_type %(group_type)s is reserved for migrating "
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"CGs to groups. Migrated group snapshots can only be "
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"operated by CG snapshot APIs.")
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% {'group_type': group_type_id})
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raise exc.HTTPBadRequest(explanation=msg)
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@wsgi.Controller.api_version(mv.GROUP_SNAPSHOTS)
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def show(self, req, id):
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"""Return data about the given group_snapshot."""
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LOG.debug('show called for member %s', id)
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context = req.environ['cinder.context']
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group_snapshot = self.group_snapshot_api.get_group_snapshot(
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context,
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group_snapshot_id=id)
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self._check_default_cgsnapshot_type(group_snapshot.group_type_id)
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return self._view_builder.detail(req, group_snapshot)
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@wsgi.Controller.api_version(mv.GROUP_SNAPSHOTS)
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def delete(self, req, id):
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"""Delete a group_snapshot."""
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LOG.debug('delete called for member %s', id)
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context = req.environ['cinder.context']
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LOG.info('Delete group_snapshot with id: %s', id, context=context)
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try:
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group_snapshot = self.group_snapshot_api.get_group_snapshot(
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context,
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group_snapshot_id=id)
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self._check_default_cgsnapshot_type(group_snapshot.group_type_id)
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self.group_snapshot_api.delete_group_snapshot(context,
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group_snapshot)
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except exception.InvalidGroupSnapshot as e:
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raise exc.HTTPBadRequest(explanation=str(e))
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except (exception.GroupSnapshotNotFound,
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exception.PolicyNotAuthorized):
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# Not found exception will be handled at the wsgi level
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raise
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except Exception:
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msg = _("Error occurred when deleting group snapshot %s.") % id
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LOG.exception(msg)
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raise exc.HTTPBadRequest(explanation=msg)
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return webob.Response(status_int=http_client.ACCEPTED)
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@wsgi.Controller.api_version(mv.GROUP_SNAPSHOTS)
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def index(self, req):
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"""Returns a summary list of group_snapshots."""
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return self._get_group_snapshots(req, is_detail=False)
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@wsgi.Controller.api_version(mv.GROUP_SNAPSHOTS)
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def detail(self, req):
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"""Returns a detailed list of group_snapshots."""
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return self._get_group_snapshots(req, is_detail=True)
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def _get_group_snapshots(self, req, is_detail):
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"""Returns a list of group_snapshots through view builder."""
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context = req.environ['cinder.context']
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req_version = req.api_version_request
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filters = marker = limit = offset = sort_keys = sort_dirs = None
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if req_version.matches(mv.GROUP_SNAPSHOT_PAGINATION):
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filters = req.params.copy()
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marker, limit, offset = common.get_pagination_params(filters)
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sort_keys, sort_dirs = common.get_sort_params(filters)
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if req_version.matches(mv.RESOURCE_FILTER):
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support_like = (True if req_version.matches(
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mv.LIKE_FILTER) else False)
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common.reject_invalid_filters(context, filters, 'group_snapshot',
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support_like)
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group_snapshots = self.group_snapshot_api.get_all_group_snapshots(
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context, filters=filters, marker=marker, limit=limit,
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offset=offset, sort_keys=sort_keys, sort_dirs=sort_dirs)
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if is_detail:
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group_snapshots = self._view_builder.detail_list(req,
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group_snapshots)
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else:
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group_snapshots = self._view_builder.summary_list(req,
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group_snapshots)
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new_group_snapshots = []
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for grp_snap in group_snapshots['group_snapshots']:
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try:
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# Only show group snapshots not migrated from CG snapshots
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self._check_default_cgsnapshot_type(grp_snap['group_type_id'])
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if not is_detail:
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grp_snap.pop('group_type_id', None)
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new_group_snapshots.append(grp_snap)
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except exc.HTTPBadRequest:
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# Skip migrated group snapshot
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pass
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group_snapshots['group_snapshots'] = new_group_snapshots
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return group_snapshots
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@wsgi.Controller.api_version(mv.GROUP_SNAPSHOTS)
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@wsgi.response(http_client.ACCEPTED)
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@validation.schema(snapshot.create)
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def create(self, req, body):
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"""Create a new group_snapshot."""
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LOG.debug('Creating new group_snapshot %s', body)
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context = req.environ['cinder.context']
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group_snapshot = body['group_snapshot']
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group_id = group_snapshot['group_id']
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group = self.group_snapshot_api.get(context, group_id)
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self._check_default_cgsnapshot_type(group.group_type_id)
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name = group_snapshot.get('name', None)
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description = group_snapshot.get('description', None)
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LOG.info("Creating group_snapshot %(name)s.",
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{'name': name},
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context=context)
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try:
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new_group_snapshot = self.group_snapshot_api.create_group_snapshot(
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context, group, name, description)
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except (exception.InvalidGroup,
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exception.InvalidGroupSnapshot,
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exception.InvalidVolume) as error:
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raise exc.HTTPBadRequest(explanation=error.msg)
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retval = self._view_builder.summary(req, new_group_snapshot)
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return retval
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@wsgi.Controller.api_version(mv.GROUP_SNAPSHOT_RESET_STATUS)
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@wsgi.action("reset_status")
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@validation.schema(snapshot.reset_status)
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def reset_status(self, req, id, body):
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return self._reset_status(req, id, body)
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def _reset_status(self, req, id, body):
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"""Reset status on group snapshots"""
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context = req.environ['cinder.context']
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status = body['reset_status']['status'].lower()
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LOG.debug("Updating group '%(id)s' with "
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"'%(update)s'", {'id': id,
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'update': status})
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try:
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notifier = rpc.get_notifier('groupSnapshotStatusUpdate')
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notifier.info(context, 'groupsnapshots.reset_status.start',
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{'id': id,
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'update': status})
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gsnapshot = self.group_snapshot_api.get_group_snapshot(context, id)
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self.group_snapshot_api.reset_group_snapshot_status(context,
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gsnapshot,
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status)
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notifier.info(context, 'groupsnapshots.reset_status.end',
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{'id': id,
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'update': status})
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except exception.GroupSnapshotNotFound as error:
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# Not found exception will be handled at the wsgi level
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notifier.error(context, 'groupsnapshots.reset_status',
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{'error_message': error.msg,
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'id': id})
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raise
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except exception.InvalidGroupSnapshotStatus as error:
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notifier.error(context, 'groupsnapshots.reset_status',
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{'error_message': error.msg,
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'id': id})
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raise exc.HTTPBadRequest(explanation=error.msg)
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return webob.Response(status_int=http_client.ACCEPTED)
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def create_resource():
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return wsgi.Resource(GroupSnapshotsController())
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