FROM alpine:3.17.0
RUN apk add --no-cache curl libqrencode
RUN tag="$(curl -sSo /dev/null -w '%{redirect_url}' \
    https://github.com/Snawoot/dumbproxy/releases/latest | \
    cut -d '/' -f 8)"; \
    curl -sSL -o /usr/bin/dumbproxy \
        https://github.com/Snawoot/dumbproxy/releases/download/$tag/dumbproxy.linux-amd64
COPY entrypoint.sh /usr/local/bin/docker-entrypoint.sh
RUN chmod +x /usr/bin/dumbproxy /usr/local/bin/docker-entrypoint.sh

ENV ADDRESS="${ADDRESS:-:8080}"
ENV AUTH=
ENV USERNAME=
ENV PASSWORD=
ENV HIDDEN_DOMAIN=
ENV OPTIONS=

USER nobody
ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]
EXPOSE 8080
STOPSIGNAL SIGINT
CMD ["/usr/bin/dumbproxy"]