Django runserver & pytest Dockerfile layer

Dockerfile

FROM base AS development

# Django's built-in development server
EXPOSE 8000

COPY requirements.test.txt pytest.ini ./

RUN --mount=type=cache,target=/root/.cache/pip pip install --no-cache-dir -r requirements.test.txt  \
    && rm -rf requirements.test.txt

# We need the main source code to do anything useful
COPY rik_proovitöö ./rik_proovitöö

# TDD is a thing these days I hear, also allows us to reuse this stage for both 'dev' and 'test' profiles
COPY rik_proovitöö_tests ./rik_proovitöö_tests