Running Discourse docker image in the environment on Amazon EC2 Container Service

I will tell you what I did from start. Firstly I cloned the official discourse docker in my terminal. Then did

./discourse-setup

Then Edited containers/app.yml

./launcher rebuild app

Then pushed it on my git account.
Made a repo on AWS EC2 container service.
Then pushed the image that I had on my machine to the EC2 repo.
Then In task definition, I added 2 containers in my task definition. One is discourse and the other is about pulling discourse docker image from the environment I have deployed on as an independent entity.

I was not sure about volumes so I didn’t add it in my task definition.

Here are details of port mapping of my discourse container:

Host Port	Container Port	Protocol
80	                  443	           TCP

Port mapping for another container

Host Port   Container Port    Protocol
0                       443             TCP

@Falco Can you tell me what I did wrong?