Dockerfile

# syntax = docker/dockerfile:1.0-experimental

FROM python:3.7
LABEL maintainer="project.ada.lovelace@gmail.com"

WORKDIR /engine/

# Install dependencies
RUN apt-get update \
    && apt-get install -y --no-install-recommends \
        docker.io \
    && rm -rf /var/lib/apt/lists/*

# Install Python dependencies
RUN pip install --upgrade pip
COPY requirements.txt /engine/requirements.txt
RUN pip install -r requirements.txt

COPY . /engine/

RUN git clone https://github.com/project-lovelace/lovelace-problems.git /lovelace-problems/
RUN ln -s /lovelace-problems/problems/ problems
RUN ln -s /lovelace-problems/resources/ resources

RUN --mount=type=secret,id=token git clone https://`cat /run/secrets/token`@github.com/project-lovelace/lovelace-solutions.git /lovelace-solutions/
RUN ln -s /lovelace-solutions/python/ solutions
RUN ln -s /lovelace-solutions/python/ /lovelace-problems/problems/solutions

EXPOSE 14714

# https://pythonspeed.com/articles/gunicorn-in-docker/
# https://docs.gunicorn.org/en/stable/faq.html#how-do-i-avoid-gunicorn-excessively-blocking-in-os-fchmod
CMD gunicorn --worker-tmp-dir /dev/shm --workers 1 --log-level debug --timeout 600 --preload --reload --bind 0.0.0.0:14714 engine.api:app