Dockerfile

FROM tpill90/steam-lancache-prefill:latest

LABEL org.opencontainers.image.title "Steam Lancache Prefill cronjob"
LABEL org.opencontainers.image.authors Yimura
LABEL org.opencontainers.image.description "Dockerized cronjob running the Steam Lancache prefilling tool, at container initial startup as well as at 4am."
LABEL org.opencontainers.image.source https://github.com/Yimura/Lancache-Prefill-Cron

ENV FILE=/etc/cron.d/prefill-cron

RUN set -x &&\
    apt update &&\
    apt install -qq -y cron

RUN touch ${FILE} &&\
    chmod 0644 ${FILE}

RUN echo "0 4 * * * /SteamPrefill prefill > /proc/1/fd/1 2>/proc/1/fd/2" >> ${FILE} &&\
    echo "@reboot /SteamPrefill prefill > /proc/1/fd/1 2>/proc/1/fd/2" >> ${FILE} &&\
    echo "# last line required for value cron file" >> ${FILE}

RUN crontab ${FILE}

ENTRYPOINT [ "cron", "-f", "-l", "1" ]