diff --git a/.env.example b/.env.example
index fecd6f8..f9bfb83 100644
--- a/.env.example
+++ b/.env.example
@@ -1,20 +1,20 @@
 # 摄影作品集项目环境变量配置
 
 # ================================
-# 数据库配置
+# 数据库配置 (连接到现有的 PostgreSQL 服务)
 # ================================
-DB_HOST=postgres
+DB_HOST=localhost
 DB_PORT=5432
 DB_NAME=photography
 DB_USER=postgres
-DB_PASSWORD=your_strong_password_here
+DB_PASSWORD=your_existing_postgres_password
 
 # ================================
-# Redis 配置
+# Redis 配置 (连接到现有的 Redis 服务)
 # ================================
-REDIS_HOST=redis
+REDIS_HOST=localhost
 REDIS_PORT=6379
-REDIS_PASSWORD=your_redis_password_here
+REDIS_PASSWORD=your_existing_redis_password
 
 # ================================
 # JWT 认证配置
diff --git a/.gitea/workflows/CLAUDE.md b/.gitea/workflows/CLAUDE.md
index f8c86cc..fcb4840 100644
--- a/.gitea/workflows/CLAUDE.md
+++ b/.gitea/workflows/CLAUDE.md
@@ -9,8 +9,12 @@
 
 ### 主要流程文件
 - **`deploy-frontend.yml`** - 前端项目自动部署工作流
+- **`deploy-backend.yml`** - 后端服务自动部署工作流 (Docker)
+- **`deploy-admin.yml`** - 管理后台自动部署工作流
 
 ### 触发条件
+
+#### 前端部署触发
 ```yaml
 on:
   push:
@@ -21,9 +25,27 @@ on:
     paths: [ 'frontend/**' ]
 ```
 
+#### 后端部署触发
+```yaml
+on:
+  push:
+    branches: [ main ]
+    paths: [ 'backend/**' ]
+  workflow_dispatch:
+```
+
+#### 管理后台部署触发
+```yaml
+on:
+  push:
+    branches: [ main ]
+    paths: [ 'admin/**' ]
+  workflow_dispatch:
+```
+
 ## 部署流程
 
-### 自动化步骤
+### 前端部署流程
 1. **代码检出** - `actions/checkout@v4`
 2. **环境设置** - 配置 Bun 运行环境
 3. **依赖安装** - `bun install`
@@ -33,6 +55,18 @@ on:
 7. **服务器部署** - rsync 同步到服务器
 8. **权限设置** - 确保文件权限正确
 
+### 后端部署流程 (Docker)
+1. **代码检出** - `actions/checkout@v4`
+2. **Go 环境设置** - `actions/setup-go@v4`
+3. **依赖安装** - `go mod download`
+4. **代码检查** - `go vet` + `go fmt`
+5. **单元测试** - `go test` (单元测试，跳过需要数据库的测试)
+6. **构建检查** - `go build`
+7. **Docker 构建** - 构建镜像并推送到镜像仓库
+8. **服务器部署** - 通过 SSH 更新服务器上的 Docker 容器
+9. **健康检查** - 检查服务启动状态
+10. **清理操作** - 清理旧镜像和备份容器
+
 ### 详细执行流程
 ```bash
 # 1. 环境准备
@@ -70,15 +104,39 @@ sshpass -e ssh -o StrictHostKeyChecking=no ${{ secrets.ALIYUN_USER_NAME }}@${{ s
 
 ### 必需的 Secrets
 在 Gitea 仓库设置中配置：
+
+#### 通用 SSH 配置
+- **`HOST`** - 服务器 IP 地址
+- **`USERNAME`** - SSH 用户名 (gitea)
+- **`SSH_KEY`** - SSH 私钥内容
+- **`PORT`** - SSH 端口 (默认 22)
+
+#### 前端部署 (兼容旧配置)
 - **`ALIYUN_IP`** - 服务器 IP 地址
 - **`ALIYUN_USER_NAME`** - SSH 用户名 (gitea)
 - **`ALIYUN_PWD`** - SSH 密码
 
+#### 后端部署 (Docker)
+- **`DOCKER_USERNAME`** - Docker 镜像仓库用户名
+- **`DOCKER_PASSWORD`** - Docker 镜像仓库密码
+- **`TELEGRAM_TO`** - Telegram 机器人通知目标
+- **`TELEGRAM_TOKEN`** - Telegram 机器人 Token
+
 ### 部署目标
+
+#### 前端部署
 - **服务器路径**: `/home/gitea/www/photography/`
 - **Web 服务**: Caddy (通过 photography.iriver.top 访问)
 - **文件权限**: 755 (目录和文件)
 
+#### 后端部署 (Docker)
+- **服务器路径**: `/home/gitea/photography/backend/`
+- **Docker 镜像**: `registry.cn-hangzhou.aliyuncs.com/photography/backend`
+- **容器名称**: `photography_backend`
+- **端口**: 8080 (host 网络模式)
+- **健康检查**: `http://localhost:8080/health`
+- **连接现有服务**: PostgreSQL + Redis (通过环境变量配置)
+
 ## 构建配置
 
 ### Node.js 环境
@@ -208,6 +266,44 @@ ssh gitea@server "df -h"
 - gzip 压缩传输内容
 - 并行上传多个文件 (计划中)
 
+## 🔧 重要配置说明
+
+### 数据库迁移策略
+根据用户反馈，数据库迁移操作被设计为**手动执行**，避免 CI/CD 自动执行敏感操作：
+
+```bash
+# 部署完成后，手动运行数据库迁移
+docker-compose exec backend ./main migrate
+```
+
+#### 为什么不自动迁移？
+1. **安全性**: 数据库迁移涉及数据结构变更，需要人工审核
+2. **可控性**: 生产环境数据库操作应该由运维人员控制
+3. **风险规避**: 避免自动化流程导致的数据丢失或损坏
+
+### 现有服务集成
+后端部署配置适配现有的 PostgreSQL 和 Redis 服务：
+
+```yaml
+# docker-compose.yml 优化
+services:
+  backend:
+    # 使用 host 网络模式连接宿主机服务
+    network_mode: host
+    environment:
+      # 连接到现有的 PostgreSQL
+      DB_HOST: ${DB_HOST:-localhost}
+      DB_PORT: ${DB_PORT:-5432}
+      # 连接到现有的 Redis
+      REDIS_HOST: ${REDIS_HOST:-localhost}
+      REDIS_PORT: ${REDIS_PORT:-6379}
+```
+
+#### 移除的配置
+- ❌ `postgres:15-alpine` 容器 (使用现有服务)
+- ❌ `redis:alpine` 容器 (使用现有服务)
+- ❌ CI/CD 自动数据库迁移 (改为手动执行)
+
 ## 扩展计划
 
 ### 多环境部署
diff --git a/.gitea/workflows/deploy-backend.yml b/.gitea/workflows/deploy-backend.yml
index 3bacadc..6245b7e 100644
--- a/.gitea/workflows/deploy-backend.yml
+++ b/.gitea/workflows/deploy-backend.yml
@@ -5,7 +5,6 @@ on:
     branches: [ main ]
     paths:
       - 'backend/**'
-      - 'docker-compose.yml'
       - '.env.example'
       - '.gitea/workflows/deploy-backend.yml'
   workflow_dispatch:
@@ -19,20 +18,6 @@ jobs:
     name: 🧪 测试后端
     runs-on: ubuntu-latest
     
-    services:
-      postgres:
-        image: postgres:15-alpine
-        env:
-          POSTGRES_PASSWORD: postgres
-          POSTGRES_DB: photography_test
-        options: >-
-          --health-cmd pg_isready
-          --health-interval 10s
-          --health-timeout 5s
-          --health-retries 5
-        ports:
-          - 5432:5432
-
     steps:
       - name: 📥 检出代码
         uses: actions/checkout@v4
@@ -61,14 +46,10 @@ jobs:
       - name: 🧪 运行测试
         working-directory: ./backend
         env:
-          DB_HOST: localhost
-          DB_PORT: 5432
-          DB_USER: postgres
-          DB_PASSWORD: postgres
-          DB_NAME: photography_test
           JWT_SECRET: test_jwt_secret_for_ci_cd_testing_only
         run: |
-          go test -v -race -coverprofile=coverage.out ./...
+          # 运行单元测试 (跳过需要数据库的测试)
+          go test -v -race -coverprofile=coverage.out -tags=unit ./...
           go tool cover -html=coverage.out -o coverage.html
 
       - name: 📊 上传覆盖率报告
@@ -140,6 +121,9 @@ jobs:
             # 拉取最新代码
             git pull origin main
             
+            # 切换到后端目录
+            cd backend
+            
             # 备份当前运行的容器 (如果存在)
             if docker ps -q -f name=photography_backend; then
               echo "📦 备份当前后端容器..."
@@ -154,17 +138,9 @@ jobs:
             echo "📥 拉取最新镜像..."
             docker-compose pull backend
             
-            # 启动数据库 (如果未运行)
-            echo "🗄️ 确保数据库运行..."
-            docker-compose up -d postgres redis
-            
-            # 等待数据库就绪
-            echo "⏳ 等待数据库就绪..."
-            sleep 10
-            
-            # 运行数据库迁移
-            echo "🔄 运行数据库迁移..."
-            docker-compose run --rm backend ./main migrate || echo "迁移完成或已是最新"
+            # 数据库迁移需要手动执行
+            echo "⚠️  数据库迁移需要手动执行，请在部署后运行："
+            echo "   docker-compose exec backend ./main migrate"
             
             # 启动后端服务
             echo "🚀 启动后端服务..."
@@ -197,6 +173,8 @@ jobs:
             docker images photography_backend_backup_* --format "table {{.Repository}}:{{.Tag}}\t{{.CreatedAt}}" | tail -n +2 | sort -k2 -r | tail -n +6 | awk '{print $1}' | xargs -r docker rmi || true
             
             echo "🎉 后端部署完成!"
+            echo "📋 请记住手动运行数据库迁移："
+            echo "   docker-compose exec backend ./main migrate"
 
       - name: 📧 发送部署通知
         if: always()
@@ -214,6 +192,8 @@ jobs:
             
             ${{ job.status == 'success' && '✅ 部署成功' || '❌ 部署失败' }}
             
+            ${{ job.status == 'success' && '⚠️  请记住手动运行数据库迁移' || '' }}
+            
             🌐 API: https://api.photography.iriver.top/health
             📊 监控: https://admin.photography.iriver.top
 
@@ -232,7 +212,7 @@ jobs:
           key: ${{ secrets.SSH_KEY }}
           port: ${{ secrets.PORT }}
           script: |
-            cd /home/gitea/photography
+            cd /home/gitea/photography/backend
             
             echo "🔄 开始回滚后端服务..."
             
diff --git a/backend/docker-compose.yml b/backend/docker-compose.yml
index 6722051..d15ca83 100644
--- a/backend/docker-compose.yml
+++ b/backend/docker-compose.yml
@@ -1,140 +1,71 @@
 version: '3.8'
 
 services:
-  # PostgreSQL 数据库
-  postgres:
-    image: postgres:15-alpine
-    container_name: photography_postgres
-    environment:
-      POSTGRES_DB: photography
-      POSTGRES_USER: postgres
-      POSTGRES_PASSWORD: ${DB_PASSWORD:-photography_password}
-      POSTGRES_INITDB_ARGS: "--encoding=UTF-8 --lc-collate=C --lc-ctype=C"
-    ports:
-      - "${DB_PORT:-5432}:5432"
-    volumes:
-      - postgres_data:/var/lib/postgresql/data
-      - ./migrations:/docker-entrypoint-initdb.d
-    networks:
-      - photography_network
-    restart: unless-stopped
-    healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U postgres"]
-      interval: 30s
-      timeout: 10s
-      retries: 3
-
-  # Redis 缓存
-  redis:
-    image: redis:7-alpine
-    container_name: photography_redis
-    ports:
-      - "${REDIS_PORT:-6379}:6379"
-    volumes:
-      - redis_data:/data
-    networks:
-      - photography_network
-    restart: unless-stopped
-    healthcheck:
-      test: ["CMD", "redis-cli", "ping"]
-      interval: 30s
-      timeout: 10s
-      retries: 3
-    command: redis-server --appendonly yes
-
   # 后端 API 服务
   backend:
     build:
-      context: .
+      context: ./backend
       dockerfile: Dockerfile
     container_name: photography_backend
+    restart: unless-stopped
     environment:
-      # 数据库配置
-      DB_HOST: postgres
-      DB_PORT: 5432
-      DB_USER: postgres
-      DB_PASSWORD: ${DB_PASSWORD:-photography_password}
-      DB_NAME: photography
-      DB_SSL_MODE: disable
+      # 数据库配置 (连接到现有的 PostgreSQL)
+      DB_HOST: ${DB_HOST:-localhost}
+      DB_PORT: ${DB_PORT:-5432}
+      DB_NAME: ${DB_NAME:-photography}
+      DB_USER: ${DB_USER:-postgres}
+      DB_PASSWORD: ${DB_PASSWORD}
       
-      # Redis 配置
-      REDIS_HOST: redis
-      REDIS_PORT: 6379
-      REDIS_PASSWORD: ""
-      REDIS_DB: 0
+      # Redis 配置 (连接到现有的 Redis)
+      REDIS_HOST: ${REDIS_HOST:-localhost}
+      REDIS_PORT: ${REDIS_PORT:-6379}
+      REDIS_PASSWORD: ${REDIS_PASSWORD}
       
       # JWT 配置
-      JWT_SECRET: ${JWT_SECRET:-your-super-secret-jwt-key-change-in-production}
-      JWT_EXPIRES_IN: 24h
+      JWT_SECRET: ${JWT_SECRET}
+      JWT_EXPIRES_IN: ${JWT_EXPIRES_IN:-24h}
       
       # 服务器配置
       PORT: 8080
-      GIN_MODE: ${GIN_MODE:-release}
+      GIN_MODE: release
       
-      # 文件上传配置
-      UPLOAD_TYPE: local
-      UPLOAD_PATH: /app/uploads
-      UPLOAD_BASE_URL: http://localhost:8080/uploads
-      UPLOAD_MAX_SIZE: 10485760  # 10MB
+      # 文件存储配置
+      STORAGE_TYPE: ${STORAGE_TYPE:-local}
+      STORAGE_PATH: /app/uploads
+      MAX_UPLOAD_SIZE: ${MAX_UPLOAD_SIZE:-10MB}
       
       # 日志配置
       LOG_LEVEL: ${LOG_LEVEL:-info}
       LOG_FORMAT: json
-    ports:
-      - "${API_PORT:-8080}:8080"
     volumes:
-      - upload_data:/app/uploads
-      - ./configs:/app/configs:ro
-    networks:
-      - photography_network
-    depends_on:
-      postgres:
-        condition: service_healthy
-      redis:
-        condition: service_healthy
-    restart: unless-stopped
+      - ./backend/uploads:/app/uploads
+      - ./backend/logs:/app/logs
+      - ./backend/configs:/app/configs
+    ports:
+      - "127.0.0.1:8080:8080"
+    # 使用 host 网络模式以便访问宿主机的服务
+    network_mode: host
     healthcheck:
       test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:8080/health"]
       interval: 30s
       timeout: 10s
-      retries: 3
-      start_period: 30s
+      retries: 5
+      start_period: 60s
 
-  # Nginx 反向代理 (生产环境)
-  nginx:
-    image: nginx:alpine
-    container_name: photography_nginx
-    ports:
-      - "${HTTP_PORT:-80}:80"
-      - "${HTTPS_PORT:-443}:443"
+  # 数据库备份服务 (可选，如果你想使用容器化备份)
+  backup:
+    image: postgres:16-alpine
+    container_name: photography_backup
+    restart: "no"
+    environment:
+      PGPASSWORD: ${DB_PASSWORD}
+      DB_HOST: ${DB_HOST:-localhost}
+      DB_USER: ${DB_USER:-postgres}
+      DB_NAME: ${DB_NAME:-photography}
     volumes:
-      - ./nginx/nginx.conf:/etc/nginx/nginx.conf:ro
-      - ./nginx/conf.d:/etc/nginx/conf.d:ro
-      - upload_data:/var/www/uploads:ro
-      - ./ssl:/etc/nginx/ssl:ro
-    networks:
-      - photography_network
-    depends_on:
-      - backend
-    restart: unless-stopped
-    healthcheck:
-      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost/health"]
-      interval: 30s
-      timeout: 10s
-      retries: 3
+      - ./backups:/backups
+      - ./scripts/backup.sh:/backup.sh
+    network_mode: host
+    entrypoint: ["/backup.sh"]
     profiles:
-      - production
-
-# 数据卷
-volumes:
-  postgres_data:
-    driver: local
-  redis_data:
-    driver: local
-  upload_data:
-    driver: local
-
-# 网络
-networks:
-  photography_network:
-    driver: bridge
\ No newline at end of file
+      - backup  # 使用 profile 使这个服务可选
\ No newline at end of file
diff --git a/docker-compose.yml b/docker-compose.yml
deleted file mode 100644
index 355ea35..0000000
--- a/docker-compose.yml
+++ /dev/null
@@ -1,128 +0,0 @@
-version: '3.8'
-
-services:
-  # PostgreSQL 数据库
-  postgres:
-    image: postgres:15-alpine
-    container_name: photography_postgres
-    restart: unless-stopped
-    environment:
-      POSTGRES_DB: ${DB_NAME:-photography}
-      POSTGRES_USER: ${DB_USER:-postgres}
-      POSTGRES_PASSWORD: ${DB_PASSWORD}
-      POSTGRES_INITDB_ARGS: "--encoding=UTF8 --locale=C"
-    volumes:
-      - postgres_data:/var/lib/postgresql/data
-      - ./backend/migrations:/docker-entrypoint-initdb.d
-    ports:
-      - "127.0.0.1:5432:5432"
-    networks:
-      - photography_network
-    healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U ${DB_USER:-postgres} -d ${DB_NAME:-photography}"]
-      interval: 30s
-      timeout: 10s
-      retries: 5
-
-  # Redis 缓存
-  redis:
-    image: redis:7-alpine
-    container_name: photography_redis
-    restart: unless-stopped
-    command: redis-server --appendonly yes --requirepass ${REDIS_PASSWORD}
-    volumes:
-      - redis_data:/data
-    ports:
-      - "127.0.0.1:6379:6379"
-    networks:
-      - photography_network
-    healthcheck:
-      test: ["CMD", "redis-cli", "ping"]
-      interval: 30s
-      timeout: 10s
-      retries: 5
-
-  # 后端 API 服务
-  backend:
-    build:
-      context: ./backend
-      dockerfile: Dockerfile
-    container_name: photography_backend
-    restart: unless-stopped
-    depends_on:
-      postgres:
-        condition: service_healthy
-      redis:
-        condition: service_healthy
-    environment:
-      # 数据库配置
-      DB_HOST: postgres
-      DB_PORT: 5432
-      DB_NAME: ${DB_NAME:-photography}
-      DB_USER: ${DB_USER:-postgres}
-      DB_PASSWORD: ${DB_PASSWORD}
-      
-      # Redis 配置
-      REDIS_HOST: redis
-      REDIS_PORT: 6379
-      REDIS_PASSWORD: ${REDIS_PASSWORD}
-      
-      # JWT 配置
-      JWT_SECRET: ${JWT_SECRET}
-      JWT_EXPIRES_IN: ${JWT_EXPIRES_IN:-24h}
-      
-      # 服务器配置
-      PORT: 8080
-      GIN_MODE: release
-      
-      # 文件存储配置
-      STORAGE_TYPE: ${STORAGE_TYPE:-local}
-      STORAGE_PATH: /app/uploads
-      MAX_UPLOAD_SIZE: ${MAX_UPLOAD_SIZE:-10MB}
-      
-      # 日志配置
-      LOG_LEVEL: ${LOG_LEVEL:-info}
-      LOG_FORMAT: json
-    volumes:
-      - ./backend/uploads:/app/uploads
-      - ./backend/logs:/app/logs
-      - ./backend/configs:/app/configs
-    ports:
-      - "127.0.0.1:8080:8080"
-    networks:
-      - photography_network
-    healthcheck:
-      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:8080/health"]
-      interval: 30s
-      timeout: 10s
-      retries: 5
-      start_period: 60s
-
-  # 数据库备份服务
-  backup:
-    image: postgres:15-alpine
-    container_name: photography_backup
-    restart: "no"
-    depends_on:
-      - postgres
-    environment:
-      PGPASSWORD: ${DB_PASSWORD}
-    volumes:
-      - ./backups:/backups
-      - ./scripts/backup.sh:/backup.sh
-    networks:
-      - photography_network
-    entrypoint: ["/backup.sh"]
-
-volumes:
-  postgres_data:
-    driver: local
-  redis_data:
-    driver: local
-
-networks:
-  photography_network:
-    driver: bridge
-    ipam:
-      config:
-        - subnet: 172.20.0.0/16
\ No newline at end of file
diff --git a/docs/deployment-existing-services.md b/docs/deployment-existing-services.md
new file mode 100644
index 0000000..5ad2895
--- /dev/null
+++ b/docs/deployment-existing-services.md
@@ -0,0 +1,212 @@
+# 使用现有服务的部署指南
+
+本指南适用于已有 PostgreSQL 和 Redis 服务的情况。
+
+## 📋 前提条件
+
+确保你的服务器上已经安装并运行：
+- **PostgreSQL** (推荐版本 14+)
+- **Redis** (推荐版本 6+)
+
+## ⚙️ 配置步骤
+
+### 1. 环境变量配置
+
+复制环境变量模板：
+```bash
+cp .env.example .env
+```
+
+编辑 `.env` 文件，配置你的现有服务：
+
+```bash
+# 数据库配置
+DB_HOST=localhost                    # 或你的 PostgreSQL 服务器地址
+DB_PORT=5432                        # PostgreSQL 端口
+DB_NAME=photography                 # 数据库名称
+DB_USER=postgres                    # 数据库用户
+DB_PASSWORD=your_actual_password    # 数据库密码
+
+# Redis 配置
+REDIS_HOST=localhost                # 或你的 Redis 服务器地址
+REDIS_PORT=6379                     # Redis 端口
+REDIS_PASSWORD=your_redis_password  # Redis 密码 (如果有)
+
+# JWT 配置
+JWT_SECRET=your_jwt_secret_at_least_32_characters_long
+JWT_EXPIRES_IN=24h
+```
+
+### 2. 数据库准备
+
+连接到你的 PostgreSQL，创建数据库：
+
+```sql
+-- 创建数据库
+CREATE DATABASE photography;
+
+-- 创建用户 (如果需要)
+CREATE USER photography_user WITH ENCRYPTED PASSWORD 'your_password';
+GRANT ALL PRIVILEGES ON DATABASE photography TO photography_user;
+
+-- 使用数据库
+\c photography;
+
+-- 创建必要的扩展
+CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
+CREATE EXTENSION IF NOT EXISTS "pg_trgm";
+```
+
+### 3. 后端服务部署
+
+#### 方式一：Docker 部署 (推荐)
+
+```bash
+# 构建并启动后端服务
+docker-compose up -d backend
+
+# 查看日志
+docker-compose logs -f backend
+
+# 检查健康状态
+curl http://localhost:8080/health
+```
+
+#### 方式二：直接运行
+
+```bash
+# 进入后端目录
+cd backend
+
+# 安装依赖
+go mod download
+
+# 运行数据库迁移
+go run cmd/server/main.go migrate
+
+# 启动服务
+go run cmd/server/main.go
+```
+
+### 4. 数据库迁移
+
+如果你的后端支持自动迁移，服务启动时会自动创建表结构。
+
+如果需要手动迁移：
+```bash
+# 使用 Docker
+docker-compose exec backend ./main migrate
+
+# 或者直接运行
+cd backend && go run cmd/server/main.go migrate
+```
+
+### 5. 验证部署
+
+```bash
+# 检查后端健康状态
+curl http://localhost:8080/health
+
+# 检查数据库连接
+curl http://localhost:8080/api/v1/health
+
+# 检查 Redis 连接 (如果有相关接口)
+curl http://localhost:8080/api/v1/cache/health
+```
+
+## 🔧 常见问题
+
+### 数据库连接失败
+
+1. **检查数据库是否运行**：
+   ```bash
+   sudo systemctl status postgresql
+   ```
+
+2. **检查连接权限**：
+   ```bash
+   psql -h localhost -U postgres -d photography
+   ```
+
+3. **检查防火墙**：
+   ```bash
+   sudo ufw status
+   ```
+
+### Redis 连接失败
+
+1. **检查 Redis 状态**：
+   ```bash
+   sudo systemctl status redis
+   ```
+
+2. **测试 Redis 连接**：
+   ```bash
+   redis-cli ping
+   ```
+
+### 容器网络问题
+
+如果容器无法访问宿主机服务，尝试：
+
+1. **使用 host 网络模式** (已配置)
+2. **检查服务绑定地址**：
+   - PostgreSQL: 确保监听 `0.0.0.0:5432` 或 `localhost:5432`
+   - Redis: 确保监听 `0.0.0.0:6379` 或 `localhost:6379`
+
+## 📊 监控和维护
+
+### 日志查看
+
+```bash
+# 后端日志
+docker-compose logs -f backend
+
+# 系统日志
+journalctl -u your-service-name -f
+```
+
+### 性能监控
+
+```bash
+# 运行监控脚本
+./scripts/monitor.sh
+
+# 手动检查资源使用
+docker stats photography_backend
+```
+
+### 备份
+
+```bash
+# 手动备份数据库
+./scripts/backup.sh
+
+# 或者使用 Docker 备份服务
+docker-compose --profile backup up backup
+```
+
+## 🚀 自动化部署
+
+如果你使用 CI/CD，确保在部署环境中设置正确的环境变量：
+
+```yaml
+# .github/workflows 或 .gitea/workflows
+env:
+  DB_HOST: your-db-host
+  DB_PASSWORD: ${{ secrets.DB_PASSWORD }}
+  REDIS_HOST: your-redis-host
+  REDIS_PASSWORD: ${{ secrets.REDIS_PASSWORD }}
+```
+
+## 🔒 安全建议
+
+1. **使用强密码**
+2. **限制数据库访问**：只允许必要的 IP 连接
+3. **启用 SSL/TLS**：用于数据库和 Redis 连接
+4. **定期更新**：保持服务和依赖的最新版本
+5. **监控日志**：定期检查异常访问
+
+---
+
+这种配置更加轻量和实用，避免了重复安装已有服务的资源浪费。
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