FROM alpine:3.10 VOLUME /output/ ENTRYPOINT ["/entrypoint.sh"] # Default to 20 passes. CMD ["20"] COPY dataPreparer.c /dataPreparer.c COPY prepareData.sh /prepareData.sh COPY entrypoint.sh /entrypoint.sh RUN apk --update add imagemagick gcc libc-dev && chmod +x /entrypoint.sh /prepareData.sh