FOLLOWING:  https://docs.docker.com/compose/django
mkdir django-server
cd django-server
I created Dockerfile, requirements.txt and docker-compose.yml (code is in the first steps of the turorial)
The last command i executed is:
sudo docker-compose run web django-admin startproject composeexample .
this command is supposed to create the startproject folder and manage.py (django related). It does not. It just outputs "Starting django-server_db_1 ... done"