426 lines
16 KiB
Python
426 lines
16 KiB
Python
# Copyright (c) 2016 EMC Corporation
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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 groups controller."""
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from http import HTTPStatus
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from oslo_log import log as logging
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from oslo_utils import strutils
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from oslo_utils import uuidutils
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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 groups as group
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from cinder.api.v3.views import groups as views_groups
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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 GroupsController(wsgi.Controller):
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"""The groups API controller for the OpenStack API."""
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_view_builder_class = views_groups.ViewBuilder
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def __init__(self):
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self.group_api = group_api.API()
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super(GroupsController, 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 can only be operated by "
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"CG APIs.") % {'group_type': group_type_id}
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raise exc.HTTPBadRequest(explanation=msg)
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@wsgi.Controller.api_version(mv.GROUP_VOLUME)
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def show(self, req, id):
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"""Return data about the given group."""
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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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# Not found exception will be handled at the wsgi level
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group = self.group_api.get(
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context,
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group_id=id)
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self._check_default_cgsnapshot_type(group.group_type_id)
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return self._view_builder.detail(req, group)
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@wsgi.Controller.api_version(mv.GROUP_VOLUME_RESET_STATUS)
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@wsgi.action("reset_status")
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@validation.schema(group.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 generic group."""
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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('groupStatusUpdate')
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notifier.info(context, 'groups.reset_status.start',
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{'id': id,
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'update': status})
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group = self.group_api.get(context, id)
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self.group_api.reset_status(context, group, status)
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notifier.info(context, 'groups.reset_status.end',
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{'id': id,
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'update': status})
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except exception.GroupNotFound as error:
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# Not found exception will be handled at the wsgi level
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notifier.error(context, 'groups.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.InvalidGroupStatus as error:
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notifier.error(context, 'groups.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=HTTPStatus.ACCEPTED)
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@wsgi.Controller.api_version(mv.GROUP_VOLUME)
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@wsgi.action("delete")
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@validation.schema(group.delete)
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def delete_group(self, req, id, body):
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return self._delete(req, id, body)
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def _delete(self, req, id, body):
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"""Delete a group."""
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LOG.debug('delete called for group %s', id)
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context = req.environ['cinder.context']
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grp_body = body['delete']
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del_vol = strutils.bool_from_string(grp_body.get(
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'delete-volumes', False))
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LOG.info('Delete group with id: %s', id,
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context=context)
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try:
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group = self.group_api.get(context, id)
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self._check_default_cgsnapshot_type(group.group_type_id)
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self.group_api.delete(context, group, del_vol)
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except exception.GroupNotFound:
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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.InvalidGroup as error:
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raise exc.HTTPBadRequest(explanation=error.msg)
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return webob.Response(status_int=HTTPStatus.ACCEPTED)
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@wsgi.Controller.api_version(mv.GROUP_VOLUME)
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def index(self, req):
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"""Returns a summary list of groups."""
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return self._get_groups(req, is_detail=False)
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@wsgi.Controller.api_version(mv.GROUP_VOLUME)
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def detail(self, req):
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"""Returns a detailed list of groups."""
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return self._get_groups(req, is_detail=True)
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def _get_groups(self, req, is_detail):
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"""Returns a list of groups through view builder."""
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context = req.environ['cinder.context']
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filters = req.params.copy()
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api_version = req.api_version_request
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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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filters.pop('list_volume', None)
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if api_version.matches(mv.RESOURCE_FILTER):
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support_like = (True if api_version.matches(
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mv.LIKE_FILTER) else False)
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common.reject_invalid_filters(context, filters, 'group',
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support_like)
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groups = self.group_api.get_all(
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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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new_groups = []
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for grp in groups:
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try:
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# Only show groups not migrated from CGs
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self._check_default_cgsnapshot_type(grp.group_type_id)
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new_groups.append(grp)
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except exc.HTTPBadRequest:
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# Skip migrated group
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pass
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if is_detail:
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groups = self._view_builder.detail_list(
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req, new_groups)
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else:
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groups = self._view_builder.summary_list(
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req, new_groups)
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return groups
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@wsgi.Controller.api_version(mv.GROUP_VOLUME)
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@wsgi.response(HTTPStatus.ACCEPTED)
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@validation.schema(group.create)
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def create(self, req, body):
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"""Create a new group."""
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LOG.debug('Creating new group %s', body)
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context = req.environ['cinder.context']
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group = body['group']
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name = group.get('name')
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description = group.get('description')
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if name:
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name = name.strip()
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if description:
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description = description.strip()
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group_type = group['group_type']
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if not uuidutils.is_uuid_like(group_type):
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req_group_type = group_types.get_group_type_by_name(context,
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group_type)
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group_type = req_group_type['id']
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self._check_default_cgsnapshot_type(group_type)
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volume_types = group['volume_types']
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availability_zone = group.get('availability_zone')
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LOG.info("Creating group %(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 = self.group_api.create(
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context, name, description, group_type, volume_types,
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availability_zone=availability_zone)
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except (exception.Invalid, exception.ObjectActionError) as error:
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raise exc.HTTPBadRequest(explanation=error.msg)
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except exception.NotFound:
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# Not found exception will be handled at the wsgi level
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raise
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retval = self._view_builder.summary(req, new_group)
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return retval
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@wsgi.Controller.api_version(mv.GROUP_SNAPSHOTS)
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@wsgi.action("create-from-src")
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@wsgi.response(HTTPStatus.ACCEPTED)
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@validation.schema(group.create_from_source)
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def create_from_src(self, req, body):
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"""Create a new group from a source.
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The source can be a group snapshot or a group. Note that
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this does not require group_type and volume_types as the
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"create" API above.
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"""
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LOG.debug('Creating new group %s.', body)
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context = req.environ['cinder.context']
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group = body['create-from-src']
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name = group.get('name')
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description = group.get('description')
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if name:
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name = name.strip()
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if description:
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description = description.strip()
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group_snapshot_id = group.get('group_snapshot_id', None)
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source_group_id = group.get('source_group_id', None)
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group_type_id = None
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if group_snapshot_id:
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LOG.info("Creating group %(name)s from group_snapshot "
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"%(snap)s.",
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{'name': name, 'snap': group_snapshot_id},
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context=context)
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grp_snap = self.group_api.get_group_snapshot(context,
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group_snapshot_id)
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group_type_id = grp_snap.group_type_id
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elif source_group_id:
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LOG.info("Creating group %(name)s from "
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"source group %(source_group_id)s.",
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{'name': name, 'source_group_id': source_group_id},
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context=context)
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source_group = self.group_api.get(context, source_group_id)
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group_type_id = source_group.group_type_id
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self._check_default_cgsnapshot_type(group_type_id)
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try:
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new_group = self.group_api.create_from_src(
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context, name, description, group_snapshot_id, source_group_id)
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except exception.InvalidGroup as error:
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raise exc.HTTPBadRequest(explanation=error.msg)
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except (exception.GroupNotFound, exception.GroupSnapshotNotFound):
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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.CinderException as error:
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raise exc.HTTPBadRequest(explanation=error.msg)
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retval = self._view_builder.summary(req, new_group)
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return retval
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@wsgi.Controller.api_version(mv.GROUP_VOLUME)
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@validation.schema(group.update)
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def update(self, req, id, body):
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"""Update the group.
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Expected format of the input parameter 'body':
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.. code-block:: json
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{
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"group":
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{
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"name": "my_group",
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"description": "My group",
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"add_volumes": "volume-uuid-1,volume-uuid-2,...",
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"remove_volumes": "volume-uuid-8,volume-uuid-9,..."
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}
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}
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"""
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LOG.debug('Update called for group %s.', id)
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context = req.environ['cinder.context']
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group = body['group']
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name = group.get('name')
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description = group.get('description')
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if name:
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name = name.strip()
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if description:
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description = description.strip()
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add_volumes = group.get('add_volumes')
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remove_volumes = group.get('remove_volumes')
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LOG.info("Updating group %(id)s with name %(name)s "
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"description: %(description)s add_volumes: "
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"%(add_volumes)s remove_volumes: %(remove_volumes)s.",
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{'id': id, 'name': name,
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'description': description,
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'add_volumes': add_volumes,
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'remove_volumes': remove_volumes},
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context=context)
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try:
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group = self.group_api.get(context, id)
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self._check_default_cgsnapshot_type(group.group_type_id)
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self.group_api.update(
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context, group, name, description,
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add_volumes, remove_volumes)
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except exception.GroupNotFound:
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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.InvalidGroup as error:
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raise exc.HTTPBadRequest(explanation=error.msg)
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return webob.Response(status_int=HTTPStatus.ACCEPTED)
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@wsgi.Controller.api_version(mv.GROUP_REPLICATION)
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@wsgi.action("enable_replication")
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@validation.schema(group.enable_replication)
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def enable_replication(self, req, id, body):
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"""Enables replications for a group."""
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context = req.environ['cinder.context']
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LOG.info('Enable replication group with id: %s.', id,
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context=context)
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try:
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group = self.group_api.get(context, id)
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self.group_api.enable_replication(context, group)
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# Not found exception will be handled at the wsgi level
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except (exception.InvalidGroup, exception.InvalidGroupType,
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exception.InvalidVolume, exception.InvalidVolumeType) as error:
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raise exc.HTTPBadRequest(explanation=error.msg)
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return webob.Response(status_int=HTTPStatus.ACCEPTED)
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@wsgi.Controller.api_version(mv.GROUP_REPLICATION)
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@wsgi.action("disable_replication")
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@validation.schema(group.disable_replication)
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def disable_replication(self, req, id, body):
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"""Disables replications for a group."""
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context = req.environ['cinder.context']
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LOG.info('Disable replication group with id: %s.', id,
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context=context)
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try:
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group = self.group_api.get(context, id)
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self.group_api.disable_replication(context, group)
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# Not found exception will be handled at the wsgi level
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except (exception.InvalidGroup, exception.InvalidGroupType,
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exception.InvalidVolume, exception.InvalidVolumeType) as error:
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raise exc.HTTPBadRequest(explanation=error.msg)
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return webob.Response(status_int=HTTPStatus.ACCEPTED)
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@wsgi.Controller.api_version(mv.GROUP_REPLICATION)
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@wsgi.action("failover_replication")
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@validation.schema(group.failover_replication)
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def failover_replication(self, req, id, body):
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"""Fails over replications for a group."""
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context = req.environ['cinder.context']
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grp_body = body['failover_replication']
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allow_attached = strutils.bool_from_string(
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grp_body.get('allow_attached_volume', False))
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secondary_backend_id = grp_body.get('secondary_backend_id')
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LOG.info('Failover replication group with id: %s.', id,
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context=context)
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try:
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group = self.group_api.get(context, id)
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self.group_api.failover_replication(context, group, allow_attached,
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secondary_backend_id)
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# Not found exception will be handled at the wsgi level
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except (exception.InvalidGroup, exception.InvalidGroupType,
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exception.InvalidVolume, exception.InvalidVolumeType) as error:
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raise exc.HTTPBadRequest(explanation=error.msg)
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return webob.Response(status_int=HTTPStatus.ACCEPTED)
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@wsgi.Controller.api_version(mv.GROUP_REPLICATION)
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@wsgi.action("list_replication_targets")
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@validation.schema(group.list_replication)
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def list_replication_targets(self, req, id, body):
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"""List replication targets for a group."""
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context = req.environ['cinder.context']
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LOG.info('List replication targets for group with id: %s.', id,
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context=context)
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# Not found exception will be handled at the wsgi level
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group = self.group_api.get(context, id)
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replication_targets = self.group_api.list_replication_targets(
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context, group)
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return replication_targets
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def create_resource():
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return wsgi.Resource(GroupsController())
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