changed docker image so it runs as non root user

EXPOSE 5000

# First, copy and install only the requirements...

RUN useradd -ms /bin/bash python

USER python

RUN useradd -ms /bin/bash python && chown -R python:python /app

RUN pip install --upgrade pip setuptools

RUN pip install pipenv

COPY Pipfile.lock .

RUN pip install -r requirements.txt

# ... then the rest of the application. This allows the installation stage to be cached most of the time

# (so we don't have reinstall of all dependencies every time the container is rebuilt)

COPY . .

COPY --chown=python:python . .

FROM base AS dev

ENV SERVER_TYPE=flask