212 lines
4.7 KiB
Markdown
212 lines
4.7 KiB
Markdown
# Rsync 实时同步服务部署文档
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## 📋 项目概述
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实现从源服务器 `10.101.2.197` 到目标服务器 `10.99.11.57` 和 `10.101.3.43` 的文件实时同步，主要同步以下内容：
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- `dibiao_template_*` 文件
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- `扫板底表` 目录及其内容
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## 🛠 环境准备
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### 系统要求
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- 源服务器：CentOS 7 (10.101.2.197)
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- 目标服务器：CentOS 7 (10.99.11.57, 10.101.3.43)
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- 用户：admin
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### 软件安装
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在源服务器上安装必要软件：
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```bash
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# 安装 rsync 和 inotify-tools
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sudo yum install -y rsync inotify-tools
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```
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## 🔑 SSH 免密登录配置
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### 生成 SSH 密钥对
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```bash
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# 在源服务器上执行
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ssh-keygen -t rsa -b 4096
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# 直接回车使用默认路径和空密码
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```
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### 分发公钥到目标服务器
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```bash
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# 分发到第一个目标服务器
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ssh-copy-id admin@10.99.11.57
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# 分发到第二个目标服务器
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ssh-copy-id admin@10.101.3.43
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```
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### 验证 SSH 连接
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```bash
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ssh admin@10.99.11.57 "echo '连接10.99.11.57成功'"
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ssh admin@10.101.3.43 "echo '连接10.101.3.43成功'"
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```
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## 📁 同步脚本配置
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### 脚本位置
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`/home/admin/sync_script.sh`
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### 脚本内容
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```bash
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#!/bin/bash
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# 同步源目录
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SRC_BASE="/home/admin/sftp/deploy"
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DEST_HOSTS=("admin@10.99.11.57" "admin@10.101.3.43")
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DEST_BASE="/home/admin/sftp/deploy"
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LOG_FILE="/home/admin/rsync_sync.log"
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# SSH 选项
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SSH_OPTS="-o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o LogLevel=ERROR"
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# 同步函数
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sync_files() {
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local success=true
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for host in "${DEST_HOSTS[@]}"; do
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echo "$(date): 同步到 $host..." >> $LOG_FILE
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# 使用单个 rsync 命令同步所有模式
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rsync -avz --delete \
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--include='dibiao_template_*' \
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--include='扫板底表/' \
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--include='扫板底表/扫板底表*' \
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--exclude='*' \
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-e "ssh $SSH_OPTS" \
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$SRC_BASE/ $host:$DEST_BASE/ >> $LOG_FILE 2>&1
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if [ $? -ne 0 ]; then
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echo "$(date): 同步到 $host 失败" >> $LOG_FILE
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success=false
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else
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echo "$(date): 同步到 $host 成功" >> $LOG_FILE
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fi
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done
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if $success; then
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echo "$(date): 所有同步完成" >> $LOG_FILE
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else
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echo "$(date): 部分同步失败" >> $LOG_FILE
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fi
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}
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# 记录开始时间
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echo "=== 同步脚本启动于: $(date) ===" >> $LOG_FILE
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# 初始同步
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sync_files
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# 实时监控
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inotifywait -m -r -e create,close_write,delete,moved_to,moved_from \
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--format "%w%f %e" \
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$SRC_BASE | while read full_path event
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do
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filename=$(basename "$full_path")
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dir_path=$(dirname "$full_path")
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if [[ "$filename" =~ ^dibiao_template_ ]] || \
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{ [[ "$dir_path" =~ .*扫板底表.* ]] && [[ "$filename" =~ ^扫板底表 ]]; }; then
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echo "$(date): 检测到变化: $full_path" >> $LOG_FILE
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sync_files
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fi
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done
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```
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### 设置脚本权限
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```bash
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chmod +x /home/admin/sync_script.sh
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```
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## 🔧 Systemd 服务配置
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### 服务文件位置
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`/etc/systemd/system/rsync-realtime.service`
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### 服务文件内容
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```ini
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[Unit]
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Description=Real-time Rsync Service
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After=network.target
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[Service]
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Type=simple
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User=admin
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WorkingDirectory=/home/admin
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ExecStart=/home/admin/sync_script.sh
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Restart=always
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RestartSec=5
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[Install]
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WantedBy=multi-user.target
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```
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### 服务管理命令
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```bash
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# 重新加载 systemd 配置
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sudo systemctl daemon-reload
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# 启用开机自启
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sudo systemctl enable rsync-realtime.service
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# 启动服务
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sudo systemctl start rsync-realtime.service
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# 检查服务状态
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sudo systemctl status rsync-realtime.service
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# 停止服务
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sudo systemctl stop rsync-realtime.service
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# 重启服务
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sudo systemctl restart rsync-realtime.service
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# 查看服务日志
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sudo journalctl -u rsync-realtime.service -f
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```
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## ✅ 功能验证
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### 测试文件同步
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```bash
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# 在源服务器创建测试文件
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cd /home/admin/sftp/deploy/
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touch dibiao_template_test_$(date +%s).txt
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echo "测试内容" > dibiao_template_testfile.txt
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# 在目标服务器验证文件同步
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ssh admin@10.99.11.57 "ls -la /home/admin/sftp/deploy/dibiao_template_*"
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ssh admin@10.101.3.43 "ls -la /home/admin/sftp/deploy/dibiao_template_*"
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```
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### 监控同步日志
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```bash
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# 查看实时同步日志
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tail -f /home/admin/rsync_sync.log
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# 查看 systemd 服务日志
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sudo journalctl -u rsync-realtime.service -f
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```
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## 🐛 故障排除
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### 常见问题及解决方案
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#### 1. SSH 权限被拒绝
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```bash
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# 检查 SSH 密钥权限
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chmod 700 ~/.ssh
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chmod 600 ~/.ssh/id_rsa
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chmod 644 ~/.ssh/id_rsa.pub
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# 重新分发公钥
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ssh-copy-id admin@目标服务器IP
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```
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### 日志文件说明
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- **服务日志**: `/home/admin/rsync_sync.log` - 记录所有同步操作 |