95 lines
3.5 KiB
Python
95 lines
3.5 KiB
Python
# Copyright (c) 2015 Huawei Tech. Co., Ltd.
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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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import pecan
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from pecan import expose
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from pecan import rest
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import re
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from oslo_log import log as logging
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import tricircle.common.client as t_client
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from tricircle.common import constants
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import tricircle.common.context as t_context
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from tricircle.common.i18n import _LE
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import tricircle.db.api as db_api
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LOG = logging.getLogger(__name__)
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class VolumeController(rest.RestController):
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def __init__(self, project_id, server_id):
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self.project_id = project_id
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self.server_id = server_id
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self.clients = {'top': t_client.Client()}
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def _get_client(self, pod_name='top'):
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if pod_name not in self.clients:
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self.clients[pod_name] = t_client.Client(pod_name)
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return self.clients[pod_name]
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@expose(generic=True, template='json')
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def post(self, **kw):
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context = t_context.extract_context_from_environ()
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if 'volumeAttachment' not in kw:
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pecan.abort(400, 'Request body not found')
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return
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body = kw['volumeAttachment']
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if 'volumeId' not in body:
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pecan.abort(400, 'Volume not set')
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return
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server_mappings = db_api.get_bottom_mappings_by_top_id(
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context, self.server_id, constants.RT_SERVER)
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if not server_mappings:
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pecan.abort(404, 'Server not found')
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return
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volume_mappings = db_api.get_bottom_mappings_by_top_id(
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context, body['volumeId'], constants.RT_VOLUME)
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if not volume_mappings:
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pecan.abort(404, 'Volume not found')
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return
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server_pod_name = server_mappings[0][0]['pod_name']
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volume_pod_name = volume_mappings[0][0]['pod_name']
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if server_pod_name != volume_pod_name:
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LOG.error(_LE('Server %(server)s is in pod %(server_pod)s and '
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'volume %(volume)s is in pod %(volume_pod)s, which '
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'are not the same.'),
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{'server': self.server_id,
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'server_pod': server_pod_name,
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'volume': body['volumeId'],
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'volume_pod': volume_pod_name})
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pecan.abort(400, 'Server and volume not in the same pod')
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return
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device = None
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if 'device' in body:
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device = body['device']
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# this regular expression is copied from nova/block_device.py
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match = re.match('(^/dev/x{0,1}[a-z]{0,1}d{0,1})([a-z]+)[0-9]*$',
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device)
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if not match:
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pecan.abort(400, 'Invalid device path')
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return
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client = self._get_client(server_pod_name)
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volume = client.action_server_volumes(
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context, 'create_server_volume',
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server_mappings[0][1], volume_mappings[0][1], device)
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return {'volumeAttachment': volume.to_dict()}
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