How to spin up offline containers?

[askoa]

I want to spin up containers that has access to localhost and not connected to internet. Is there a way to do it?

Edit: I want to do podman run -p 8080:80/tcp thus accessing the service running in podman container in localhost. But I don't want the container to have internet connection.

Edit2: Bump

[eriksjolund]

Some sketchy ideas:

Maybe with this method
#25199 (reply in thread)
that uses a dummy interface?

Or maybe by using iptables somehow
https://github.com/jerabaul29/2025_podman_iptable_rules

[askoa]

Thank you. This is helpful.