ARG ALPINE_VERSION=latest
FROM alpine:${ALPINE_VERSION}

ARG ARCH=x86_64

COPY smartdns-${ARCH} /usr/local/bin/
RUN mv /usr/local/bin/smartdns-${ARCH} /usr/local/bin/smartdns && \
    chmod +x /usr/local/bin/smartdns

COPY smartdns.conf /etc/smartdns/

VOLUME ["/smartdns"]

EXPOSE 53/udp 53

ENTRYPOINT ["smartdns", "-f", "-c", "/etc/smartdns/smartdns.conf"]