FROM alpine:3.21 AS download
ARG CLIENT=https://github.com/klzgrad/forwardproxy/releases/download/v2.10.0-naive/caddy-forwardproxy-naive.tar.xz

RUN set -eux && \
	mkdir /tmp/build && \
	cd /tmp/build && \
	wget -O forwardproxy.tar.xz "$CLIENT" && \
	tar xf forwardproxy.tar.xz && \
	mv caddy-forwardproxy-naive/caddy /caddy

FROM alpine:3.21 AS app

EXPOSE 80 443 443/udp
VOLUME [ "/conf", "/data", "/log" ]

WORKDIR /app

COPY --from=download /caddy /app/caddy

ENTRYPOINT [ "/app/caddy", "run", "--config", "/conf/Caddyfile", "--adapter", "caddyfile" ]