I recently installed docker-ce on Ubunutu 16.04 and configured docker-machine package by following the instructions in the Docker documentations.
While testing the installation, the docker run command executed fine however docker-machine create command asked for Virtual Box configured.
As per my understanding, docker containers run on Linux and hence need VirtualBox on either Mac or Windows which do not have Hyper-V support but why it is needed on Ubuntu?
What is the use of Virtual Box in creating Docker Machine?