Design for running on top of existing config
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Dockerfile
12
Dockerfile
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@ -1,8 +1,11 @@
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FROM ubuntu:trusty
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MAINTAINER Dave P
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ADD start /start
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# Install bind and dns utils
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RUN apt-get update ; \
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RUN chmod +x /start ; \
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apt-get update ; \
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apt-get install -y supervisor bind9 dnsutils ; \
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rm /etc/bind/rndc.key ; \
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mkdir /var/run/named ; \
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@ -11,8 +14,8 @@ RUN apt-get update ; \
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touch /var/log/named.log ; \
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chgrp bind /var/log/named.log ; \
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chmod 775 /var/log/named.log ; \
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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 ; \
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mkdir /start.d
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mkdir /start.d ; \
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rm -rf /var/lib/apt/lists/*
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# Supervisor script
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ADD bind.conf /etc/supervisor/conf.d/bind.conf
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@ -21,8 +24,7 @@ ADD supervisor.conf /etc/supervisor/conf.d/supervisor.conf
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# Bind setup script
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ADD regen-bind-key /start.d/regen-bind-key
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ADD start /start
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# DNS port
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EXPOSE 53/udp
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ENTRYPOINT ["/start"]
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@ -1,7 +1,6 @@
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#!/bin/bash
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# reconfigure bind - regenerates secret keys
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rndc-confgen -a -r /dev/urandom
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# Only run once
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rm /start.d/regen-bind-key
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if [ ! -f /etc/bind/rndc.key ]; then
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rndc-confgen -a -r /dev/urandom
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fi
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