Improve Bind9 configuration

dns/Dockerfile

@@ -10,6 +10,16 @@ RUN apt-get update && \
         traceroute \
         && rm -rf /var/lib/apt/lists/*
 
+RUN sed 's/include "\/etc\/bind\/named.conf.default-zones";//g' /etc/bind/named.conf
+RUN echo "include \"/etc/dns/master.conf\";" > /etc/bind/named.conf.local
+
 COPY start.sh /start.sh
+COPY restart-bind /usr/bin
+
+RUN mkdir /etc/dns
+RUN touch /etc/dns/master.conf
+
+VOLUME /etc/dns
+
 EXPOSE 53
 CMD ["/bin/sh", "/start.sh"]

dns/README.md

@@ -0,0 +1,5 @@
+# DNS server container
+
+## Useful commands
+* `named-checkconf`: Check Bind9 configuration
+* `restart-bind`: Restart Bind9

dns/restart-bind

@@ -0,0 +1,3 @@
+#!/bin/sh
+pkill named
+/usr/sbin/named