FROM python:3.9-slim

RUN \
    apt-get update && \
    apt-get clean && \
    rm -rf /var/lib/apt/lists/*

RUN useradd --create-home app
WORKDIR /home/app

COPY requirements.txt /home/app/

RUN \
    chown app:app /home/app/requirements.txt && \
    chmod 0755 /home/app/requirements.txt

RUN \
    pip install --upgrade pip && \
    pip install -r requirements.txt

USER app

CMD ["jupyter", "notebook", "--notebook-dir=/opt/notebooks", "--ip='*'", "--port=8888", "--no-browser"]