This release is a breaking change, instead of exposing the docker daemon over port 23755, it uses a unix socket (see https://github.com/lime-green/remote-docker-aws/pull/29 for a description on why). It will create the socket at `/var/run/remote-docker.sock` and automatically use a dedicated docker-context when creating and starting the instance.
If you've already created an instance then I suggest deleting and creating a new one. If you cannot do that then you can run the following on the remote machine (`rd ssh`):
sudo usermod -aG docker ubuntu
Edit /etc/systemd/system/docker.service to use `-H fd://` instead of the TCP address
After editing the above file:
sudo systemctl daemon-reload && sudo systemctl restart docker.service