50 lines
1.2 KiB
Python
50 lines
1.2 KiB
Python
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from .spec import Spec
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from typing import Union
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from pathlib import Path
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from datetime import datetime
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import subprocess
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class ContainerSpec(Spec):
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"""
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A spec for backing up via a container.
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"""
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_SKEL = {"container": None, "command": None, "mountpoint": "/from"}
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def __init__(
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self,
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name: str,
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container: str,
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destination: Union[str, Path],
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limit: int,
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command: str,
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extension: str,
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mountpoint: str,
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notify=None,
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):
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super().__init__(name, destination, limit, extension, notify)
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self.container = container
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self.mountpoint = mountpoint
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self.command = command
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def backup(self):
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# Remove excess backups
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self.remove_backups()
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# Run actual backup command
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filename = "{}.{}".format(
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datetime.now().strftime("%Y-%m-%d_%H-%M-%S"), self.extension
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)
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process = subprocess.run(
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"docker exec -t '{}' {} > '{}/{}'".format(
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self.container, self.command, self.destination, filename
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),
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shell=True,
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)
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if self.notifier:
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self.notifier.notify("backup", self.name, process.returncode)
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