upstream base-in-back-end {
    server 127.0.0.1:9090;
}

server {
    listen 80;
    server_name *.cn;
    rewrite ^/(.*) https://$server_name$request_uri? permanent;
}

server {
    listen 443;
    server_name *.cn;

    ssl on;
    ssl_certificate cert/*.pem;
    ssl_certificate_key cert/*.key;
    ssl_session_cache    shared:SSL:1m;
    ssl_session_timeout 5m;
    ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
    ssl_prefer_server_ciphers on;

    location / {
        root /app/xxx/back-end-ui;
        index index.html;
    }

    location /xxx/back-end/ {
        proxy_set_header Host $http_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;
        proxy_pass http://base-in-back-end;
    }
}