server {
    listen 80;
    listen 443 ssl http2;
    server_name *.example.com;

    # ssl_certificate /etc/nginx/ssl/example.com.crt;
    # ssl_certificate_key /etc/nginx/ssl/example.com.key;

    # 开启强制 301
    # rewrite ^(.*) https://$server_name$1 permanent;

    location / {
        proxy_redirect off;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        # 代理本地服务的 IP & 端口
        proxy_pass http://127.0.0.1:8880;
    }
}