Setup HAProxy to read data from https public IP -- 2

Job ID: 32031795

Budget: $30 – $250 USD

I need to setup the HaProxy to read data from "https public IP".
Problem is the HaProxy is getting the 503 Error when calling the public HTTPS IP.
OpenSSL already setup for the IP and data can data seen with the https://myip:myport
Note: I have to user mode HTTP to pass the header info because i need to identify the user IP address.
I'm using Centos 8. Please see the network from flow chart.
The problem is at line 122 and 123 at the back_stage_mydomain on file LoadBalancer_Haproxy.config
Related categories: System Admin Linux UNIX Ubuntu Debian