In my docker compose project i have services as below:

• Traefik for https, and proxy
• App as a node container:
• Shop as a PHP container:
• other containers

To make it work, i my host machine added below to /etc/hosts 127.0.0.1 app.pro.localhost shop.pro.localhost Then i can access them from host machine properly.

Now i want to make the containers communicate with each other via HTTPS request as well then i did something like

app:
   extra_hosts:
     - "shop.pro.localhost:${HOST_IP}"
shop:
   extra_hosts:
     - "app.pro.localhost:${HOST_IP}"

With about configuration. now inside shop container i can see 192.168.1.3 app.pro.localhost in /etc/hosts that allow to run curl perfectly.

However, it does not work in the opposite of App -> Shop. /etc/hosts is perfect as expexted as 192.168.1.3 shop.pro.localhost. When run a command curl -v the output is always like

root@f97064001ee5:/app# curl  -v
*   Trying 127.0.0.1:443...
* connect to 127.0.0.1 port 443 failed: Connection refused

--------
root@f97064001ee5:/app# getent hosts shop.pro.localhost
192.168.1.10    shop.pro.localhost

-----
root@f97064001ee5:/app# nslookup shop.pro.localhost
Server:     127.0.0.11
Address:    127.0.0.11#53

Non-authoritative answer:
shop.pro.localhost  canonical name = other.pro.localhost.
Name:   other.pro.localhost
Address: 127.0.0.1

--------
root@f97064001ee5:/app# cat /etc/resolv.conf
# This file can be edited; Docker Engine will not make further changes once it
# has been modified.

nameserver 127.0.0.11
options ndots:0

Notes: i dont want to use aliase for HTTP call as https://app in my case due to other requirements

I dont why the behavior inside app container is so weird for me:

• Why the nslookup shop.pro.localhost include something about other.pro.localhost while i dont pass any specific to the container.

How can i solve the issues?

thank for your reading.

I have mentioned in the description