cd django_gunicorn
python3 manage.py runserver --settings=django_gunicorn.settings.development
# Access via localhost (:80 port).
docker-compose up --build
docker build -t django_gunicorn:0.0.1 .
# Access via localhost:8080.
docker run -it -d --rm -p 8080:80 django_gunicorn:0.0.1