FROM alpine:3.12

RUN apk add --no-cache \
    mariadb-client \
    pdns \
    pdns-backend-mysql \
    pdns-doc \
    py3-pip \
    python3

RUN pip3 install --no-cache-dir envtpl

ENV VERSION=4.2 \
  PDNS_guardian=yes \
  PDNS_setuid=pdns \
  PDNS_setgid=pdns \
  PDNS_launch=gmysql

EXPOSE 53 53/udp

COPY pdns.conf.tpl /
COPY docker-entrypoint.sh /

ENTRYPOINT [ "/docker-entrypoint.sh" ]

CMD [ "/usr/sbin/pdns_server" ]