FROM alpine:3.7
MAINTAINER "Peter Schiffer" <pschiffe@redhat.com>

RUN apk add --no-cache \
    pdns-recursor \
    python3

RUN pip3 install envtpl \
  && rm -rf ~/.cache/*

ENV VERSION=4.0 \
  PDNS_setuid=recursor \
  PDNS_setgid=recursor \
  PDNS_daemon=no

EXPOSE 53 53/udp

COPY recursor.conf.tpl /
COPY docker-cmd.sh /

CMD [ "/docker-cmd.sh" ]