## This is executed on "$> docker build"

FROM python:3.5.2
RUN pip install django==1.8

## This is executed on "$> docker run"
CMD \
echo "SECRET_KEY='helloworld'" > settings_file.py && \
echo "ALLOWED_HOSTS = ['127.0.0.1', 'localhost']" >> settings_file.py && \
django-admin.py runserver --pythonpath=. --settings=settings_file