Add access to Docker

[guyou]

It would be awesome to use gotty to access a running Docker container, like docker exec does. Such feature allow to access a Docker without having to install and run gotty inside the container.

[guyou]

I started a PR #17 (currently still work in progress)

[sorenisanerd]

What functionality is missing from e.g. gotty -w docker run -it --rm busybox? That will launch individual docker containers for each GoTTY session.

[guyou]

You are certainly right. A command like gotty -w docker exec -it my_container does exactly the same.
My main concern was to have a single binary, thus a single process. But the approach you suggest is probably more sustainable.

I will take a detailed look at your suggestion.