Dockerfile

FROM ubuntu:22.04

RUN apt-get update && apt-get install -y tar libgnutls30 libssl-dev bash && rm -rf /var/lib/apt/lists/*

WORKDIR /app

COPY 40990sign.tar.gz /app/40990sign.tar.gz

ENV LD_LIBRARY_PATH=/app/40990sign:$LD_LIBRARY_PATH
ENV PORT=7860
EXPOSE 7860

CMD bash -c "\
    tar -xvf /app/40990sign.tar.gz -C /app && \
    chmod +x /app/40990sign/sign && \
    /app/40990sign/sign \
"