FROM python:3-slim-buster

COPY app.py /opt/app.py
RUN pip install install Flask==2.2.2 && chmod +x /opt/app.py

WORKDIR /opt
ENV WEBHOOK_SECRET=${WEBHOOK_SECRET}
ENV HOST=0.0.0.0
ENV PORT=12345
EXPOSE 12345
CMD [ "python3", "/opt/app.py" ]