Automatically create (incremental) backups of zfs snapshots on a file server.
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#!/usr/local/bin/python
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import pathlib
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import subprocess
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from copy_snapshots_to_remote import get_member_name
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from create_snapshot_backup import call, remote_call
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SSH_KEY_FILE = "/mnt/Datenspeicher/snap-backup-dataset/backup_key"
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SSH_REMOTE = "zfs_snap_backup@etha.cpi.imtek.uni-freiburg.de"
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REMOTE_PATH = "zfs-backups"
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ZFS_POOL = "Datenspeicher"
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ZFS_ELAB_PREFIX = "elabfs-"
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TMP_BACKUP_FOLDER = "/mnt/Datenspeicher/snap-backup-dataset/temporary-backups"
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def get_local_backup_members():
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tmp_folder = pathlib.Path(TMP_BACKUP_FOLDER)
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backups = (i for i in tmp_folder.iterdir() if i.suffix==".gz")
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return (get_member_name(b.name) for b in backups)
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def get_remote_checksums():
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result = {}
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for member in get_local_backup_members():
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remote_path = f"{REMOTE_PATH}/{member}/\*"
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cmd_result = remote_call(["sha256sum", remote_path])
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print(cmd_result)
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if __name__ == "__main__":
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get_remote_checksums()
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