FROM alpine:edge RUN apk add --no-cache unbound curl \ && curl -o /etc/unbound/root.hints https://www.internic.net/domain/named.cache \ && chown root:unbound /etc/unbound \ && chmod 775 /etc/unbound \ && apk del --no-cache curl \ && /usr/sbin/unbound-anchor -a /etc/unbound/trusted-key.key | true COPY unbound.conf /etc/unbound/unbound.conf EXPOSE 53/udp 53/tcp CMD /usr/sbin/unbound