nginx.conf.example

# HTTP 服务器 - 重定向到 HTTPS
server {
    listen 80;
    server_name your-domain.com www.your-domain.com;
    
    # 重定向所有 HTTP 请求到 HTTPS
    return 301 https://$server_name$request_uri;
}

# HTTPS 服务器
server {
    listen 443 ssl http2;
    server_name your-domain.com www.your-domain.com;

    # SSL 证书配置（请根据实际证书路径修改）
    ssl_certificate /etc/nginx/ssl/your-domain.com.crt;
    ssl_certificate_key /etc/nginx/ssl/your-domain.com.key;
    
    # SSL 优化配置
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers HIGH:!aNULL:!MD5;
    ssl_prefer_server_ciphers on;
    ssl_session_cache shared:SSL:10m;
    ssl_session_timeout 10m;

    # 安全头
    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-XSS-Protection "1; mode=block" always;

    # 前端静态文件
    location / {
        root /usr/share/nginx/html;
        index index.html;
        try_files $uri $uri.html $uri/ /index.html;
    }

    # 后端 API 反向代理
    location /api/ {
        proxy_pass http://app:8080;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;

        # WebSocket 支持（聊天功能）
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_read_timeout 86400s;
        proxy_send_timeout 86400s;

        # 上传文件大小限制
        client_max_body_size 1600m;
    }

    # 上传文件访问
    location /uploads/ {
        proxy_pass http://app:8080;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
    }

    # Swagger 文档（开发环境）
    location /swagger/ {
        proxy_pass http://app:8080;
        proxy_set_header Host $host;
    }

    # 错误页面
    error_page 404 /index.html;
}