Only for Windows signing up is required to get started.
Read the get starting document for Docker for Windows.
The next command allows access to the shell on the Docker Hyper-V virtual machine.
docker run -it --rm --privileged --pid=host justincormack/nsenter1
Instead of using shell scripts with lots of options to run docker containers use a docker-compose.yml file
and the command docker-compose. See the online manual
version: "3.7"
services:
webapp:
build:
context: ./dir
dockerfile: Dockerfile-alternate
args:
buildno: 1