57 lines
1.4 KiB
Bash
Executable File
57 lines
1.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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# 数据库分库备份脚本
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# 用法：backup.sh [assets|metrics|all]
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# assets -> 备份 assets.db，保留 14 份（建议每日）
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# metrics -> 备份 metrics.db，保留 4 份（建议每周）
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# all -> 两者都备份
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set -euo pipefail
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APP_DIR="${APP_DIR:-/opt/vps-manager}"
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cd "$APP_DIR"
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TARGET="${1:-all}"
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python3 - "$TARGET" <<'PYEOF'
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import sqlite3
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import sys
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from datetime import datetime
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from pathlib import Path
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target = sys.argv[1]
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data_dir = Path("data")
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backup_root = data_dir / "backups"
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ts = datetime.now().strftime("%Y%m%d_%H%M%S")
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def backup(db_name: str, keep: int) -> None:
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src = data_dir / db_name
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stem = db_name.replace(".db", "")
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if not src.exists():
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print(f"[skip] {db_name} 不存在")
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return
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out_dir = backup_root / stem
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out_dir.mkdir(parents=True, exist_ok=True)
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dst = out_dir / f"{stem}_{ts}.db"
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con = sqlite3.connect(str(src))
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bkp = sqlite3.connect(str(dst))
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con.backup(bkp)
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bkp.close()
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con.close()
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files = sorted(
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out_dir.glob(f"{stem}_*.db"),
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key=lambda p: p.stat().st_mtime,
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reverse=True,
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)
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for old in files[keep:]:
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old.unlink()
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print(f"[ok] {db_name} -> {dst}（保留 {keep} 份）")
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if target in ("assets", "all"):
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backup("assets.db", 14)
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if target in ("metrics", "all"):
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backup("metrics.db", 4)
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PYEOF
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