After deploying an application, if there is an issue with the port your application exposes, you may see the following error:

upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111

This error is due to one of the following:

  • The application is listening on the wrong port.
  • The application isn’t listening to any port.

To resolve this error, update your application to listen on port 8080.

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