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