165e91c7ec
Implement cinder backup driver for Google Cloud Storage. It supports: - creating backup which is stored on Google Cloud Storage - restoring backup from Google cloud storage - incremental backup - independent of any volume backend DocImpact Implements: blueprint gcs-cinder-backup-driver Depends-On: I04f2e3dee1f5e001ad2f1cce15893b0965c082d7 Change-Id: Id2951176ad636afa52208e78c0b678cf02b8fad2 Co-Authored-By: Sreedhar Varma<sreedharv@vedams.com> Co-Authored-By: Lakshmi Narayana<lakshminarayanat@vedams.com>
132 lines
3.6 KiB
Python
132 lines
3.6 KiB
Python
# Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
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# Copyright (C) 2016 Vedams Inc.
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# Copyright (C) 2016 Google Inc.
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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 os
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import tempfile
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class FakeGoogleObjectInsertExecute(object):
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def execute(self, *args, **kwargs):
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return {u'md5Hash': u'Z2NzY2luZGVybWQ1'}
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class FakeGoogleObjectListExecute(object):
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def __init__(self, *args, **kwargs):
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self.bucket_name = kwargs['bucket']
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self.prefix = kwargs['prefix']
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def execute(self, *args, **kwargs):
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bucket_dir = tempfile.gettempdir() + '/' + self.bucket_name
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fake_body = []
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for f in os.listdir(bucket_dir):
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try:
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f.index(self.prefix)
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fake_body.append({'name': f})
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except Exception:
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pass
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return {'items': fake_body}
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class FakeGoogleBucketListExecute(object):
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def execute(self, *args, **kwargs):
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return {u'items': [{u'name': u'gcscinderbucket'},
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{u'name': u'gcsbucket'}]}
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class FakeGoogleBucketInsertExecute(object):
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def execute(self, *args, **kwargs):
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pass
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class FakeMediaObject(object):
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def __init__(self, *args, **kwargs):
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self.bucket_name = kwargs['bucket']
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self.object_name = kwargs['object']
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class FakeGoogleObject(object):
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def insert(self, *args, **kwargs):
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object_path = (tempfile.gettempdir() + '/' + kwargs['bucket'] + '/' +
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kwargs['name'])
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kwargs['media_body']._fd.getvalue()
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with open(object_path, 'wb') as object_file:
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kwargs['media_body']._fd.seek(0)
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object_file.write(kwargs['media_body']._fd.read())
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return FakeGoogleObjectInsertExecute()
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def get_media(self, *args, **kwargs):
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return FakeMediaObject(*args, **kwargs)
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def list(self, *args, **kwargs):
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return FakeGoogleObjectListExecute(*args, **kwargs)
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class FakeGoogleBucket(object):
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def list(self, *args, **kwargs):
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return FakeGoogleBucketListExecute()
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def insert(self, *args, **kwargs):
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return FakeGoogleBucketInsertExecute()
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class FakeGoogleDiscovery(object):
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"""Logs calls instead of executing."""
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def __init__(self, *args, **kwargs):
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pass
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@classmethod
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def Build(self, *args, **kargs):
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return FakeDiscoveryBuild()
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class FakeDiscoveryBuild(object):
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"""Logging calls instead of executing."""
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def __init__(self, *args, **kwargs):
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pass
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def objects(self):
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return FakeGoogleObject()
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def buckets(self):
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return FakeGoogleBucket()
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class FakeGoogleCredentials(object):
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def __init__(self, *args, **kwargs):
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pass
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@classmethod
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def from_stream(self, *args, **kwargs):
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pass
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class FakeGoogleMediaIoBaseDownload(object):
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def __init__(self, fh, req, chunksize=None):
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object_path = (tempfile.gettempdir() + '/' + req.bucket_name + '/' +
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req.object_name)
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with open(object_path, 'rb') as object_file:
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fh.write(object_file.read())
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def next_chunk(self, **kwargs):
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return (100, True)
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