# this stage prepares the configuration files in /etc/powerdns
FROM debian:trixie-slim AS builder

ENV DEBIAN_FRONTEND=noninteractive
RUN apt-get update && apt-get install -y --no-install-recommends make

WORKDIR /etc/powerdns
RUN mkdir -p pdns.d

COPY pdns.conf pdns.conf

# build some config files from templates
COPY zones pri
COPY secondary tpl
COPY secondary/Makefile .
RUN make

RUN rm -rf tpl pri Makefile

# this stage is the actual secondary DNS server image
FROM debian:trixie-slim

# install make for building config files, pdns-server and bind backend for serving zones
ENV DEBIAN_FRONTEND=noninteractive
RUN apt-get update && apt-get install -y --no-install-recommends \
  pdns-server pdns-backend-bind pdns-backend-sqlite3 \
  && rm -rf /var/lib/apt/lists/*

# install configuration files, create necessary directories
WORKDIR /etc/powerdns
RUN rm -rf *
COPY --from=builder /etc/powerdns .
RUN mkdir -p db sec /var/run/pdns

# user permissions
RUN chown pdns db sec /var/run/pdns
USER pdns

# DNSSEC setup
RUN pdnsutil create-bind-db /etc/powerdns/db/bind-dnssec-db.sqlite3

CMD ["pdns_server", "--guardian=no", "--daemon=no", "--loglevel=10", "--webserver=no"]