Deploying Rhoconnect App on AWS Elastic Beanstalk

Hi,

I am trying to deploy my rhoconnect application server on AWS Elastic Beanstalk. The AWS Elastic Beanstalk configuration I used is as follow:
1) Ruby 1.9.3
2) Redis 3.2.8
3) Nginx 1.10.1

My Rhoconnect production settings are:
:production:

:redis: localhost:6379

:syncserver: http://localhost:9292

:push_server: http://someappname@localhost:8675/

The deploy does succeed. However, when I launch the application using the URL generated by AWS, I am getting the following error:

502 Bad Gateway
nginx/1.8.1

Could you please advise how I can resolve this issue?

Kind Regards,
Rachidi