How to open an application from docker on the external web without specifying a port?

Question

linux

There is a site in a docker container, which can now be viewed at site.ru:8080
On which port should the container be restarted so that it becomes available without specifying 8080 in the address bar? Perhaps you can somehow edit hosts on Linux, so the question is addressed to Linuxoids as well.

Answer 1

On the 80th. To open http://
via HTTPS, you need to obtain a certificate for the domain and start a web server, for example, NGINX or Apache, which will accept incoming connections and redirect them internally to port 8080.

Answer 2

It is better to use a reverse proxy, like nginx or ready-made https://github.com/nginx-proxy/nginx-proxy
for such cases. Docker has its own internal subnet and let containers stay on it and on their ports.