We need to setup an ELB with SSL termination in front of a Nginx reverse proxy to some already working ELB + project system. IOW: SSL-ELB -> Nginx reverse proxy -> ELB -> project. We'll assume the last ELB + project bit works properly.
- Configure the listeners to use TCP (80) instead of HTTP to allow the websockets (non-HTTP) to pass through. For HTTPS with SSL termination, simply use SSL (443) -> TCP (80)