122 lines
3.3 KiB
Bash
122 lines
3.3 KiB
Bash
#!/bin/bash
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# PostgreSQL 数据导出脚本
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# 使用方法：在服务器上执行 bash export-postgresql-data.sh
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set -e
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echo "=========================================="
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echo " PostgreSQL 数据导出工具"
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echo "=========================================="
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echo ""
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# 配置信息
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CONTAINER_NAME="flnxi-material"
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DB_HOST="192.168.58.20"
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DB_USER="gongxiangpan"
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DB_PASS="gongxiangpan123"
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DB_NAME="lobechat"
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TIMESTAMP=$(date +%Y%m%d_%H%M%S)
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BACKUP_FILE="lobechat_backup_${TIMESTAMP}.sql"
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BACKUP_DIR="/tmp/db_backups"
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# 创建备份目录
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mkdir -p $BACKUP_DIR
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echo "[1/6] 检查容器状态..."
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if ! docker ps | grep -q $CONTAINER_NAME; then
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echo "❌ 错误: 容器 $CONTAINER_NAME 未运行"
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echo ""
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echo "运行中的容器："
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docker ps --format "table {{.Names}}\t{{.Status}}"
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exit 1
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fi
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echo "✅ 容器运行中"
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echo ""
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echo "[2/6] 检查 PostgreSQL 客户端..."
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if docker exec -u root $CONTAINER_NAME which pg_dump > /dev/null 2>&1; then
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echo "✅ PostgreSQL 客户端已安装"
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else
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echo "📦 正在安装 PostgreSQL 客户端..."
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docker exec -u root $CONTAINER_NAME apk add --no-cache postgresql-client
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if [ $? -eq 0 ]; then
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echo "✅ 安装成功"
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else
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echo "❌ 安装失败"
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exit 1
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fi
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fi
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echo ""
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echo "[3/6] 测试数据库连接..."
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if docker exec -u root -e PGPASSWORD=$DB_PASS $CONTAINER_NAME \
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psql -h $DB_HOST -U $DB_USER -d $DB_NAME -c "SELECT 1" > /dev/null 2>&1; then
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echo "✅ 数据库连接成功"
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else
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echo "❌ 数据库连接失败，请检查："
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echo " - 数据库服务器: $DB_HOST"
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echo " - 用户名: $DB_USER"
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echo " - 密码: $DB_PASS"
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echo " - 数据库: $DB_NAME"
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exit 1
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fi
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echo ""
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echo "[4/6] 导出数据库..."
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docker exec -u root -e PGPASSWORD=$DB_PASS $CONTAINER_NAME \
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pg_dump -h $DB_HOST -U $DB_USER -d $DB_NAME \
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> $BACKUP_DIR/$BACKUP_FILE
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if [ $? -eq 0 ]; then
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echo "✅ 数据库导出成功"
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else
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echo "❌ 导出失败"
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exit 1
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fi
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echo ""
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echo "[5/6] 检查备份文件..."
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if [ -f "$BACKUP_DIR/$BACKUP_FILE" ]; then
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FILE_SIZE=$(ls -lh $BACKUP_DIR/$BACKUP_FILE | awk '{print $5}')
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LINE_COUNT=$(wc -l < $BACKUP_DIR/$BACKUP_FILE)
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echo "✅ 文件大小: $FILE_SIZE"
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echo "✅ 行数: $LINE_COUNT"
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else
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echo "❌ 备份文件不存在"
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exit 1
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fi
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echo ""
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echo "[6/6] 压缩备份文件..."
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gzip $BACKUP_DIR/$BACKUP_FILE
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COMPRESSED_FILE="${BACKUP_FILE}.gz"
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COMPRESSED_SIZE=$(ls -lh $BACKUP_DIR/$COMPRESSED_FILE | awk '{print $5}')
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echo "✅ 压缩完成"
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echo ""
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echo "=========================================="
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echo " ✅ 导出完成！"
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echo "=========================================="
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echo ""
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echo "📁 备份文件信息："
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echo " 路径: $BACKUP_DIR/$COMPRESSED_FILE"
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echo " 大小: $COMPRESSED_SIZE"
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echo ""
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echo "📥 下载到本地："
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echo " scp root@$(hostname -I | awk '{print $1}'):$BACKUP_DIR/$COMPRESSED_FILE ./"
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echo ""
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echo "📊 查看备份内容（解压后）："
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echo " gunzip -c $BACKUP_DIR/$COMPRESSED_FILE | less"
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echo ""
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echo "🔄 恢复数据库："
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echo " gunzip -c $BACKUP_DIR/$COMPRESSED_FILE | psql -h $DB_HOST -U $DB_USER -d $DB_NAME"
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echo ""
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# 列出所有备份文件
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echo "📋 历史备份文件："
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ls -lh $BACKUP_DIR/*.gz 2>/dev/null | awk '{print " " $9 " (" $5 ")"}'
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echo ""
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