87 lines
2.7 KiB
Bash
87 lines
2.7 KiB
Bash
#!/bin/bash
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# 腾讯云数据库同步脚本 (适配CynosDB)
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# 安全增强版 - 支持SSL连接和错误处理
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# 配置参数
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LOCAL_DB="rag_flow"
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CLOUD_DB="rag_flow"
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BACKUP_DIR="./bk"
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LOG_FILE="./bk/db/db_sync.log"
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DATE=$(date +%Y%m%d%H%M)
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# 腾讯云数据库信息
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CLOUD_HOST="gz-cynosdbmysql-grp-0vwlm22l.sql.tencentcdb.com"
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CLOUD_PORT="25317"
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CLOUD_USER="cyx" # 替换为实际用户名
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# 创建备份目录
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mkdir -p $BACKUP_DIR
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# 1. 获取本地数据库密码
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LOCAL_PASS=$(docker exec ragflow-mysql printenv MYSQL_ROOT_PASSWORD)
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if [ -z "$LOCAL_PASS" ]; then
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echo "[ERROR] $(date) 无法获取本地数据库密码" >> $LOG_FILE
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exit 1
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fi
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# 2. 从容器导出数据库
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echo "开始导出数据库!!!!"
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# 修改后的导出命令
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docker exec ragflow-mysql sh -c \
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"mysqldump -u root -p'$LOCAL_PASS' \
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--single-transaction \
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--routines \
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--triggers \
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--hex-blob \
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--set-gtid-purged=OFF \
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$LOCAL_DB" | \
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sed -e 's/utf8mb4_0900_ai_ci/utf8mb4_general_ci/g' \
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-e "s/ NOT NULL DEFAULT (uuid()) COMMENT '订阅ID'/ NOT NULL COMMENT '订阅ID'/" \
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> $BACKUP_DIR/dump_$DATE.sql
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# 检查导出结果
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if [ $? -ne 0 ] || [ ! -s $BACKUP_DIR/dump_$DATE.sql ]; then
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echo "[ERROR] $(date) 数据库导出失败" >> $LOG_FILE
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exit 1
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fi
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echo "导出数据库结束!!!!"
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# 3. 压缩备份
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gzip $BACKUP_DIR/dump_$DATE.sql
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BACKUP_SIZE=$(du -h $BACKUP_DIR/dump_$DATE.sql.gz | awk '{print $1}')
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# 4. 从安全存储获取云数据库密码 (推荐方式)
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# 使用密码管理器或在安全位置存储密码
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CLOUD_PASS=$(cat ./bk/db/cloud_db_password.txt) # 替换为实际密码获取方式
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# 5. 同步到腾讯云数据库 (强制SSL)
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echo "同步到腾讯云数据库$CLOUD_HOST $CLOUD_PORT $CLOUD_USER $CLOUD_PASS $CLOUD_DB"
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zcat $BACKUP_DIR/dump_$DATE.sql.gz | \
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mysql -h $CLOUD_HOST -P $CLOUD_PORT -u $CLOUD_USER -p"$CLOUD_PASS" \
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$CLOUD_DB
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# 6. 错误处理
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if [ $? -eq 0 ]; then
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echo "[SUCCESS] $(date) 同步成功 | 大小: $BACKUP_SIZE" >> $LOG_FILE
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else
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ERROR_CODE=$?
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echo "[ERROR] $(date) 同步失败! 错误码: $ERROR_CODE" >> $LOG_FILE
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# 保留失败备份用于调试
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mv $BACKUP_DIR/dump_$DATE.sql.gz $BACKUP_DIR/failed_dump_$DATE.sql.gz
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# 添加详细错误信息
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echo "[DEBUG] 错误详情: 可能原因 -" >> $LOG_FILE
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case $ERROR_CODE in
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1) echo "通用错误" >> $LOG_FILE ;;
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2) echo "SQL语法错误" >> $LOG_FILE ;;
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1045) echo "访问被拒绝 (用户/密码错误)" >> $LOG_FILE ;;
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2003) echo "无法连接到数据库服务器" >> $LOG_FILE ;;
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2026) echo "SSL连接问题" >> $LOG_FILE ;;
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*) echo "未知错误" >> $LOG_FILE ;;
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esac
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fi
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# 7. 清理旧备份（保留7天）
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find $BACKUP_DIR -name "dump_*.gz" -mtime +7 -delete
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