mirror of
https://github.com/kevinveenbirkenbach/docker-volume-backup.git
synced 2025-12-29 03:42:08 +00:00
Kevin Veen-Birkenbach
6adafe6b1f
- Use module logger in backup/db.py - Skip db dump when no databases.csv entry is present - Apply black/formatting cleanup across backup/restore/tests https://chatgpt.com/share/69519d45-b0dc-800f-acb6-6fb8504e9b46
46 lines
1.3 KiB
Python
46 lines
1.3 KiB
Python
from __future__ import annotations
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from .shell import execute_shell_command
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def get_image_info(container: str) -> str:
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return execute_shell_command(
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f"docker inspect --format '{{{{.Config.Image}}}}' {container}"
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)[0]
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def has_image(container: str, pattern: str) -> bool:
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"""Return True if container's image contains the pattern."""
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return pattern in get_image_info(container)
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def docker_volume_names() -> list[str]:
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return execute_shell_command("docker volume ls --format '{{.Name}}'")
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def containers_using_volume(volume_name: str) -> list[str]:
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return execute_shell_command(
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f"docker ps --filter volume=\"{volume_name}\" --format '{{{{.Names}}}}'"
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)
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def change_containers_status(containers: list[str], status: str) -> None:
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"""Stop or start a list of containers."""
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if not containers:
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print(f"No containers to {status}.", flush=True)
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return
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names = " ".join(containers)
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print(f"{status.capitalize()} containers: {names}...", flush=True)
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execute_shell_command(f"docker {status} {names}")
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def docker_volume_exists(volume: str) -> bool:
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# Avoid throwing exceptions for exists checks.
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try:
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execute_shell_command(
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f"docker volume inspect {volume} >/dev/null 2>&1 && echo OK"
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)
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return True
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except Exception:
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return False
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