See my comment above. Firewall changes are clearly mentioned under the section "published ports". What you expect does not matter. What you're thinking of is e

See my comment above. Firewall changes are clearly mentioned under the section "published ports". What you expect does not matter. What you're thinking of is exposing. It's even in the word "publish". The documentation has two sections entirely devoted to the terms. It's in the section "container networking", which is marked as required reading by the docs. It's not dockers fault that you're copy pasting configuration examples from medium blogs. [0]: https://docs.docker.com/config/containers/container-networking/#published-ports https://docs.docker.com/config/containers/container-networki...