FROM ubuntu:jammy RUN apt-get -q update \ && DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends -y \ cron vim ssh rsync \ letsencrypt \ python3-certbot-apache \ python3-certbot-nginx \ && apt-get clean \ && for dir in apt dpkg cache log; do \ if [[ -e /var/lib/apt/lists/${dir} ]]; then \ rm -rf /var/lib/apt/lists/${dir}; \ else \ true ; \ fi ; \ done COPY /Dockerfile.cron /Dockerfile ENTRYPOINT [ "cron", "-f" ]