Erro - NodeJS - Service - alternando 200 e 502


/ # curl -v spa-checkout-nodejs:3080
*   Trying 10.100.226.228:3080...
* Connected to spa-checkout-nodejs (10.100.226.228) port 3080 (#0)
> GET / HTTP/1.1
> Host: spa-checkout-nodejs:3080
> User-Agent: curl/7.76.1
> Accept: */*
>
* Mark bundle as not supporting multiuse
< HTTP/1.1 200 OK
< X-Powered-By: Express
< Content-Type: text/html; charset=utf-8
< Accept-Ranges: bytes
< Content-Length: 643
< ETag: W/"283-x5IW0ek9Fih7Kq9byUvbBZ2qu6k"
< Vary: Accept-Encoding
< Date: Fri, 22 Jul 2022 16:04:46 GMT
< Connection: keep-alive
< Keep-Alive: timeout=5
<
<!DOCTYPE html>
<html lang="">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width,initial-scale=1.0">
    <link rel="icon" href="/favicon.ico">
    <title>AppMax Checkout</title>
  <script defer src="/js/chunk-vendors.js"></script><script defer src="/js/index.js"></script></head>
  <body>
    <noscript>
      <strong>We're sorry but Checkout doesn't work properly without JavaScript enabled. Please enable it to continue.</strong>
    </noscript>
    <div id="app"></div>
    <!-- built files will be auto injected -->
  </body>
</html>
* Connection #0 to host spa-checkout-nodejs left intact
/ #
/ #
/ #
/ #
/ #
/ # curl -v spa-checkout-nodejs:3080
*   Trying 10.100.226.228:3080...
* connect to 10.100.226.228 port 3080 failed: Connection refused
* Failed to connect to spa-checkout-nodejs port 3080: Connection refused
* Closing connection 0
curl: (7) Failed to connect to spa-checkout-nodejs port 3080: Connection refused
/ #