Dockerfile

FROM python:3.9

RUN apt-get update -y && \
    apt-get upgrade -y

# Build stockfish binary
ARG STOCKFISH_BIN_URL
WORKDIR /tmp
RUN if [ -z ${STOCKFISH_BIN_URL} ]; then \
        wget https://github.com/official-stockfish/Stockfish/archive/refs/tags/sf_16.1.zip && \
        unzip sf_16.1.zip && \
        cd Stockfish-sf_16.1/src && \
        make build ARCH=x86-64-modern && \
        cp stockfish /usr/local/bin/stockfish && \
        rm -rf /tmp/*; \
    else \
        wget ${STOCKFISH_BIN_URL} -O /usr/local/bin/stockfish && \
        chmod +x /usr/local/bin/stockfish; \
    fi

# Copy files for websocket server
WORKDIR /stockfish-socket-server
ENV PYTHONPATH=/stockfish-socket-server
COPY . .

# install dependencies
RUN pip3 install --upgrade pip && \
    pip3 install --no-cache-dir -r requirements.txt

# Expose port 5000 and override entrypoint
EXPOSE 5000
ENTRYPOINT ["/bin/bash", "-l", "-c"]