ARG DISTRO=alpine:3.14.5 FROM $DISTRO ARG VERSION ENV TZ Etc/UTC LABEL version=$VERSION # python3 shared with most images RUN apk add --no-cache \ python3 py3-pip bash tzdata \ && pip3 install --upgrade pip # Image specific layers under this line RUN apk add --no-cache curl \ && pip3 install pytz radicale~=3.0 COPY radicale.conf /radicale.conf EXPOSE 5232/tcp VOLUME ["/data"] CMD radicale -S -C /radicale.conf HEALTHCHECK CMD curl -f -L http://localhost:5232/ || exit 1 RUN echo $VERSION >> /version