How Do I setup Cloudflare Tunnel Container With Linode Firewall?

Hi folks!

Problem:
The Cloudflare tunnel (Zero Trust) does not link domain to web server.

Setup:

• Linode docker image
  • Cloudflared tunnel container
  • Web server : https://github.com/crccheck/docker-hello-world
• Linode Firewall
  • Allow outboud I.e Egress traffic
  • Drop Inbound I.e Igress traffic
• Using Lish console to start and monitor container

More Info:
I'm trying to setup Cloudflare Tunnel with my new instance of Linode but all i'm receiving is an Error 502 from my web browser.
It all worked fine when I used my own server at home (without opening any port on my router)

I used the cloudflared docker image to connect the tunnel to Cloudflare. (The tunnel says it is connected in the ui)

But when I try to link my domain test.example.com to my linode isntance it never resolve. Either while linking to 0.0.0.0, 127.0.0.1, localhost, x.x.x.x (Linode isntance IP) and x.x.x.x.ip.linodeusercontent.com

Normally I can just set test.example.com -> http://192.0.0.x:anyport in cloudflare tunnel UI.

--

Actually, event with Inbound traffic enable, it doesn't work

-- More info found

The error I get from the cloudflared container is this :

cloudflared | 2023-12-16T22:28:15Z ERR Request failed error="Incoming request ended abruptly: context canceled" connIndex=3 dest=https://test.example.com/ event=0 ip=x.x.x.x type=http

cloudflared | 2023-12-16T22:28:47Z ERR error="Incoming request ended abruptly: context canceled" cfRay=Some-ID event=1 ingressRule=0 originService=http://my-linode-ip

-- Even more info
I tried t osee if my service was working as expected with the following command from the Linode isntance :
curl http://localhost:80

Hello World


                                       ##         .
                                 ## ## ##        ==
                              ## ## ## ## ##    ===
                           /""""""""""""""""\___/ ===
                      ~~~ {~~ ~~~~ ~~~ ~~~~ ~~ ~ /  ===- ~~~
                           \______ o          _,/
                            \      \       _,'
                             `'--.._\..--''

Having received this, I know taht the web server is working as expected