FROM alpine:latest

MAINTAINER Jochen Welzel

RUN apk update && apk upgrade && apk add bash && apk add nsd
RUN mkdir -p /var/db/nsd/zones/master && mkdir /var/db/nsd/zones/slave && mkdir /var/run/nsd
COPY nsd.conf.example /tmp
COPY entrypoint.sh /
RUN chmod 755 /entrypoint.sh

EXPOSE 53/TCP 53/UDP
VOLUME ["/etc/nsd/", "/var/db/nsd"]
ENTRYPOINT ["/entrypoint.sh"]