FROM alpine:3.20

RUN apk --no-cache add \
    socat

COPY --chmod=755 ./entrypoint.sh /usr/local/bin/entrypoint

RUN addgroup -S edns \
    && adduser -S edns -G edns

USER edns

EXPOSE 11053/udp

ENTRYPOINT [ "entrypoint" ]

CMD [ "-any" ]