- Use Knot resolver instead of Unbound (results in smaller image but nothing...

- Use Knot resolver instead of Unbound (results in smaller image but nothing more, updated to Stretch).

Dockerfile

-FROM debian:jessie
+FROM debian:stretch
 ENV DEBIAN_FRONTEND noninteractive
 RUN apt-get update && \
-    apt-get install -y unbound unbound-host dnsutils dma bsd-mailx
+    apt-get install -y knot-dnsutils knot-host knot-resolver dma bsd-mailx
 COPY entrypoint.sh /entrypoint.sh
 ENTRYPOINT ["/entrypoint.sh"]
 CMD ["/bin/bash", "--login"]

entrypoint.sh

 #!/bin/sh
 set -eu
-service unbound start
+service kresd start
 echo 'nameserver 127.0.0.1' > /etc/resolv.conf
 exec $@