Remove base image dependency

Dockerfile

@@ -1,15 +1,9 @@
-FROM basessh
+FROM ubuntu:trusty
 MAINTAINER Dave P
 
-# Bind setup script
-COPY regen-bind-key /start.d/regen-bind-key 
-
-# Supervisor script
-COPY bind.conf /etc/supervisor/conf.d/bind.conf
-
 # Install bind and dns utils
 RUN apt-get update ; \
-    apt-get install -y bind9 dnsutils ; \
+    apt-get install -y supervisor bind9 dnsutils ; \
     rm /etc/bind/rndc.key ; \
     chmod +x /start.d/regen-bind-key ; \
     mkdir /var/run/named ; \
@@ -18,8 +12,17 @@ RUN apt-get update ; \
     touch /var/log/named.log ; \
     chgrp bind /var/log/named.log ; \
     chmod 775 /var/log/named.log ; \
-    sed -i -e's/include "\/etc\/bind\/named.conf.options";/logging{\n\tchannel simple_log {\n\t\tfile "\/var\/log\/named.log" versions 3 size 5m;\n\t\tseverity info;\n\t\tprint-time yes;\n\t\tprint-severity yes;\n\t\tprint-category yes;\n\t};\n\tcategory default{\n\t\tsimple_log;\n\t};\n};\ninclude "\/etc\/bind\/named.conf.options";/' /etc/bind/named.conf
-    # edit named.conf to use the above log file
+    sed -i -e's/include "\/etc\/bind\/named.conf.options";/logging{\n\tchannel simple_log {\n\t\tfile "\/var\/log\/named.log" versions 3 size 5m;\n\t\tseverity info;\n\t\tprint-time yes;\n\t\tprint-severity yes;\n\t\tprint-category yes;\n\t};\n\tcategory default{\n\t\tsimple_log;\n\t};\n};\ninclude "\/etc\/bind\/named.conf.options";/' /etc/bind/named.conf ; \
+    mkdir /start.d
+
+# Supervisor script
+ADD bind.conf /etc/supervisor/conf.d/bind.conf
+ADD supervisor.conf /etc/supervisor/conf.d/supervisor.conf
+
+# Bind setup script
+ADD regen-bind-key /start.d/regen-bind-key
+
+ADD start /start
 
 # DNS port
 EXPOSE 53/udp

regen-bind-key

@@ -1,8 +1,7 @@
 #!/bin/bash
 
 # reconfigure bind - regenerates secret keys
-dpkg-reconfigure bind9
+rndc-confgen -a -r /dev/urandom
 
 # Only run once
 rm /start.d/regen-bind-key
-

start

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+# run everything in start.d
+find /start.d -type f -executable -exec {} \;
+
+# Cleanly kill supervisor when container is stopped
+trap 'kill $(jobs -p)' EXIT
+
+# start services
+supervisord

supervisor.conf

@@ -0,0 +1,2 @@
+[supervisord]
+nodaemon=true