102 lines
3.5 KiB
Python
102 lines
3.5 KiB
Python
# Copyright 2011 OpenStack Foundation
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# Copyright 2013 IBM Corp.
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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 os.path
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import webob
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from nova.api.openstack import common
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from nova.api.openstack.compute.schemas import create_backup
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from nova.api.openstack import extensions
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from nova.api.openstack import wsgi
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from nova.api import validation
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from nova import compute
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from nova import exception
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ALIAS = "os-create-backup"
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authorize = extensions.os_compute_authorizer(ALIAS)
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class CreateBackupController(wsgi.Controller):
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def __init__(self, *args, **kwargs):
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super(CreateBackupController, self).__init__(*args, **kwargs)
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self.compute_api = compute.API(skip_policy_check=True)
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@extensions.expected_errors((400, 403, 404, 409))
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@wsgi.action('createBackup')
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@validation.schema(create_backup.create_backup)
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def _create_backup(self, req, id, body):
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"""Backup a server instance.
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Images now have an `image_type` associated with them, which can be
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'snapshot' or the backup type, like 'daily' or 'weekly'.
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If the image_type is backup-like, then the rotation factor can be
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included and that will cause the oldest backups that exceed the
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rotation factor to be deleted.
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"""
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context = req.environ["nova.context"]
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authorize(context)
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entity = body["createBackup"]
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image_name = entity["name"]
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backup_type = entity["backup_type"]
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rotation = int(entity["rotation"])
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props = {}
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metadata = entity.get('metadata', {})
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common.check_img_metadata_properties_quota(context, metadata)
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props.update(metadata)
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instance = common.get_instance(self.compute_api, context, id)
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try:
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image = self.compute_api.backup(context, instance, image_name,
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backup_type, rotation, extra_properties=props)
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except exception.InstanceUnknownCell as e:
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raise webob.exc.HTTPNotFound(explanation=e.format_message())
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except exception.InstanceInvalidState as state_error:
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common.raise_http_conflict_for_instance_invalid_state(state_error,
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'createBackup', id)
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except exception.InvalidRequest as e:
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raise webob.exc.HTTPBadRequest(explanation=e.format_message())
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resp = webob.Response(status_int=202)
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# build location of newly-created image entity if rotation is not zero
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if rotation > 0:
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image_id = str(image['id'])
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image_ref = os.path.join(req.application_url, 'images', image_id)
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resp.headers['Location'] = image_ref
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return resp
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class CreateBackup(extensions.V21APIExtensionBase):
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"""Create a backup of a server."""
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name = "CreateBackup"
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alias = ALIAS
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version = 1
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def get_controller_extensions(self):
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controller = CreateBackupController()
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extension = extensions.ControllerExtension(self, 'servers', controller)
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return [extension]
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def get_resources(self):
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return []
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