readme.md: Document how can I get the DSM IP address if I don't set up macvlan

[pmorch]

readme.md: Document how can I get the DSM IP address if I don't set up macvlan

[pmorch]

And thanks for this project. I needed it to experiment with setting up the Nix package manager, and I didn't want to risk my existing setup. This project worked 100% as hoped (and way better than expected). No small feat. Kudos!

[kroese]

Thanks!! I am not sure if how you do it is the easiest way to be honest..

For example, you can just run docker inspect dsm and it will also output the IP.

Or even better, you can add hostname: dsm to the compose file, and you do not even need the IP anymore because you can connect by name.

A third method is to just add the ports to the compose file, and you also wouldnt need the IP, because you can connect to localhost.

[pmorch]

I totally agree. This PR is not currently suited for merging. I did spend some time finding out how to connect to the DSM over ssh. So I'd like to help out the next sorry person.

Adding ports 22222:22 allowed me to ssh -p 22222 user@localhost. But for NFS, things are a little less simple. And connecting to NFS on different ports is a pain, so instead:

• Suggest adding ports as the primary approach, using ssh/22 as an example
• Mention the docker inspect dsm as a way to find the IPAddress for NFS so standard ports can be used.

Sounds good/better? If we agree, I'll modify my commit as described and force push.