Dockerfile

FROM python:3.7-alpine as builder

WORKDIR /usr/src/app

ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1

RUN apk update && apk add gcc python3-dev musl-dev

COPY ./Pipfile* ./

RUN pip install pipenv

RUN pipenv lock --requirements > ./requirements.txt

RUN pip wheel --no-cache-dir --wheel-dir /usr/src/app/wheels -r requirements.txt


# === FINAL IMAGE ===

FROM python:3.7-alpine

RUN addgroup -S app && adduser -S app -G app

# Create directories app_home and static directories
ENV HOME=/home/app
ENV APP_HOME=/home/app/web
RUN mkdir $APP_HOME
WORKDIR $APP_HOME

# Copy dependencies from builder image
RUN apk update && apk add libpq

COPY --from=builder /usr/src/app/wheels /wheels
COPY --from=builder /usr/src/app/requirements.txt .

RUN pip install --no-cache --no-deps /wheels/*

COPY . $APP_HOME

RUN chown -R app:app $APP_HOME

USER app

RUN python manage.py collectstatic --noinput

RUN python manage.py migrate

CMD python manage.py runserver 8000