86 lines
2.5 KiB
Python
Executable File
86 lines
2.5 KiB
Python
Executable File
#!/usr/bin/python
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# Copyright 2016 Sam Yaple
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Copied and licensed from https://github.com/SamYaple/osdk
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import argparse
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import os
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import sys
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from ekko.manifest import structure as manifest_structure
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from six.moves import range
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from stevedore import driver
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def parse_args():
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parser = argparse.ArgumentParser(description='Backup Block Device')
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parser.add_argument('--backupsize', required=True, type=int,
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help='Size of backup for manifest gen (size in GB)')
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parser.add_argument('--manifest', required=True,
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help='manifest file')
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parser.add_argument('--cbt', required=False,
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help='change block tracking info')
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parser.add_argument('--driver', required=False, default='sqlite',
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choices=['osdk', 'sqlite'], help='manifest driver')
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return parser.parse_args()
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def read_segments(segments, metadata):
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for segment in segments:
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yield manifest_structure.Segment(
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metadata.backupset_id,
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metadata.incremental,
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segment,
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0,
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0,
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os.urandom(20)
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)
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def check_manifest(manifest_file):
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return os.path.isfile(manifest_file)
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def main():
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args = parse_args()
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if check_manifest(args.manifest):
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print('manifest exists; exiting')
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return
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manifest = driver.DriverManager(
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namespace='ekko.manifest.drivers',
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name=args.driver,
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invoke_on_load=True,
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invoke_args=[args.manifest]
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).driver
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size_of_disk = args.backupsize * 1024**3 # Convert GB to B
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num_of_sectors = int(size_of_disk / 512)
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incremental = 0
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metadata = manifest_structure.Metadata(incremental, sectors=num_of_sectors)
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manifest.initialize()
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manifest.put_metadata(metadata)
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num_of_segments = int(size_of_disk / metadata.segment_size)
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segments = read_segments(range(0, num_of_segments - 1), metadata)
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manifest.put_segments(segments, metadata)
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if __name__ == '__main__':
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sys.exit(main())
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