76 lines
2.8 KiB
Bash
76 lines
2.8 KiB
Bash
#!/bin/bash
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# ═══════════════════════════════════════════════════════════
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# 光湖智库数据备份脚本 · 定时备份到腾讯云COS
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# ═══════════════════════════════════════════════════════════
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#
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# 项目编号: ZY-PROJ-006
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# 服务器: ZY-SVR-006 (43.153.203.105 · 新加坡)
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# 守护: 铸渊 · ICE-GL-ZY001
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# 版权: 国作登字-2026-A-00037559
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#
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# 功能:
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# 1. 备份 /opt/zhiku/data 目录到腾讯云 COS
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# 2. 每周一全量备份，其他日增量备份
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# 3. 保留最近7天的备份
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# 4. 日志记录每次备份操作
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#
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# 运行时间: 每日 04:00 (UTC+8)
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# ═══════════════════════════════════════════════════════════
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set -euo pipefail
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# ─── 配置变量 ───
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BACKUP_SOURCE="/opt/zhiku/data"
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BACKUP_DEST="cos://$ZY_COS_BUCKET/backups/zhiku-data"
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LOG_FILE="/var/log/zhiku/backup.log"
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TEMP_DIR="/tmp/zhiku-backup"
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# ─── 确保目录存在 ───
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mkdir -p "$TEMP_DIR"
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mkdir -p "$(dirname "$LOG_FILE")"
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] 开始备份 $BACKUP_SOURCE 到 $BACKUP_DEST" >> "$LOG_FILE"
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# ─── 判断备份类型 ───
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DAY_OF_WEEK=$(date +%u)
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BACKUP_TYPE="incremental"
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BACKUP_SUFFIX="inc"
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if [ "$DAY_OF_WEEK" -eq 1 ]; then
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BACKUP_TYPE="full"
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BACKUP_SUFFIX="full"
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fi
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# ─── 创建备份文件 ───
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TIMESTAMP=$(date '+%Y%m%d-%H%M%S')
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BACKUP_FILE="zhiku-data-$TIMESTAMP-$BACKUP_SUFFIX.tar.gz"
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BACKUP_PATH="$TEMP_DIR/$BACKUP_FILE"
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# 全量备份直接打包
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if [ "$BACKUP_TYPE" = "full" ]; then
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tar -czf "$BACKUP_PATH" -C "$BACKUP_SOURCE" .
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else
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# 增量备份基于前一天的全量或增量
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LAST_BACKUP=$(find "$TEMP_DIR" -name "zhiku-data-*-*.tar.gz" | sort | tail -n 1)
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if [ -z "$LAST_BACKUP" ]; then
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] 警告: 找不到之前的备份，执行全量备份" >> "$LOG_FILE"
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tar -czf "$BACKUP_PATH" -C "$BACKUP_SOURCE" .
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else
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# 使用--newer-mtime参数只备份修改过的文件
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tar -czf "$BACKUP_PATH" -C "$BACKUP_SOURCE" --newer-mtime="$(date -d @$(stat -c %Y "$LAST_BACKUP") '+%Y-%m-%d %H:%M:%S')" .
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fi
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fi
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# ─── 上传到COS ───
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coscli cp "$BACKUP_PATH" "$BACKUP_DEST/$BACKUP_FILE" >> "$LOG_FILE" 2>&1
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# ─── 清理旧备份 ───
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find "$TEMP_DIR" -name "zhiku-data-*.tar.gz" -mtime +7 -delete
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# ─── 记录完成 ───
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BACKUP_SIZE=$(du -h "$BACKUP_PATH" | cut -f1)
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] 备份完成: $BACKUP_FILE ($BACKUP_SIZE)" >> "$LOG_FILE"
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# ─── 返回状态 ───
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exit 0 |