How to run docker on port 8080 without docker -p option , but from dockerfile or dockercompose?

Question

i know when we give the -p option with docker run command like docker run -p 8080:8080 dockerimage , it will run on docker port 8080... but i want to write the docker run command with just container ID without -p option... like docker run imagename (without specifying port name)

if i write EXPOSE 8080/tcp in dockerFile, then when i run docker, it just opens port Exposed in dockerfile, but i want to make the docker run on specific port (not port 80). May be docker-compose will help me achieve it?

Please guide.

Answer 1

There is certainly no way to forward ports with Dockerfile but it is possible with docker-compose :

version: "3"
services:
  myapp:
    image: hello-world
    ports:
    - 8080:80

See the compose file reference