If you run the driver inside your docker container you’ll have to make sure that the robot can reach it either by adding some routing schemes or by using port forwarding when starting your docker container.
For example, the robot will try to connect to port 50002. The ROS driver will open this port inside the docker container, but this will not be visible for machines outside of the docker network.
From my experience with docker the most straight-forward solution would be to forward ports 50001, 50002 and 50003 from the host to the docker machine (add -p 50001-50003:50001-50003 to your docker startup command)
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