tight tapir
The Docker Rust node cannot see incoming libp2p peers with non-default 8079 port using --libp2p-portconfig option. May be an issue with the default port as well (not tested). Checked that the Rust node advertisement uses Docker internal 172-network, the public IP address of the server would be certainly better overall for this. That might need external IP configuration support. Tested also with Ocaml devnet node for reference, they see peers quickly after connecting to devnet.
The established sessions should appear in the host side Linux networking stack and can be checked with e.g. cmd:
ss | grep 8079