nginx.conf

server {
    listen 80;
    server_name _;
    root /usr/share/nginx/html;
    index index.html;

    # SPA fallback — 所有路由交给 index.html 处理
    location / {
        try_files $uri $uri/ /index.html;
    }

    # API 反向代理到后端
    location /api/ {
        proxy_pass http://backend:3000/;
        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;
    }

    # 静态资源缓存
    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
        expires 1y;
        add_header Cache-Control "public, immutable";
    }

    # gzip
    gzip on;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml text/javascript;
    gzip_min_length 1024;
}