FROM alpine:3.22

RUN --mount=type=cache,target=/var/cache/apk apk add python3 pipx
RUN addgroup -S dyndns
RUN adduser -D -S -h /var/lib/dyndns -G dyndns dyndns

ADD --chown=dyndns:dyndns pi.conf /var/lib/dyndns/.pip/pip.conf

USER dyndns
WORKDIR /var/lib/dyndns
RUN pipx install dyndns
ENV PATH="/var/lib/dyndns/.local/bin:$PATH"