docker-compose up
docker-compose up -d --build
docker-compose down
docker-compose run --rm app sh -c "flake8"
docker-compose run --rm app sh -c "python manage.py wait_for_db"
docker-compose run --rm app sh -c "python manage.py test"
docker-compose run --rm app sh -c "python manage.py makemigrations"
docker-compose run --rm app sh -c "python manage.py migrate"
docker volume ls
docker volume rm <volume-name>
add the package to requirements.txt and run docker-compose build