Use configuration fragments

Author: HoloRin

Dockerfile-alpine.template

@@ -270,7 +270,7 @@ VOLUME $RABBITMQ_DATA_DIR
 # https://docs.docker.com/samples/library/ubuntu/#locales
 ENV LANG=C.UTF-8 LANGUAGE=C.UTF-8 LC_ALL=C.UTF-8
 
-COPY rabbitmq.conf /etc/rabbitmq/
+COPY conf.d /etc/rabbitmq/
 
 COPY docker-entrypoint.sh /usr/local/bin/
 ENTRYPOINT ["docker-entrypoint.sh"]

Dockerfile-ubuntu.template

@@ -288,7 +288,7 @@ VOLUME $RABBITMQ_DATA_DIR
 # https://docs.docker.com/samples/library/ubuntu/#locales
 ENV LANG=C.UTF-8 LANGUAGE=C.UTF-8 LC_ALL=C.UTF-8
 
-COPY rabbitmq.conf /etc/rabbitmq/
+COPY conf.d /etc/rabbitmq/
 
 COPY docker-entrypoint.sh /usr/local/bin/
 ENTRYPOINT ["docker-entrypoint.sh"]

apply-templates.sh

@@ -49,9 +49,9 @@ for version; do
 		cp -a "$entrypoint" "$version/$variant/docker-entrypoint.sh"
 
 		if [ "$rcVersion" = '3.8' ]; then
-			sed -i -e '/COPY rabbitmq.conf/d' "$version/$variant/Dockerfile"
+			sed -i -e '/COPY conf.d/d' "$version/$variant/Dockerfile"
 		else
-			cp -a "rabbitmq.conf" "$version/$variant/"
+			cp -aR "conf.d" "$version/$variant/"
 		fi
 
 		if [ "$variant" = 'alpine' ]; then

conf.d/01-preamble.conf

@@ -0,0 +1,3 @@
+## DEFAULT SETTINGS ARE NOT MEANT TO BE TAKEN STRAIGHT INTO PRODUCTION
+## see https://www.rabbitmq.com/configure.html for further information
+## on configuring RabbitMQ

rabbitmq.conf renamed to conf.d/10-default-user.conf

@@ -2,7 +2,3 @@
 ## https://www.rabbitmq.com/access-control.html#loopback-users
 ## https://www.rabbitmq.com/production-checklist.html#users
 loopback_users.guest = false
-
-## DEFAULT SETTINGS ARE NOT MEANT TO BE TAKEN STRAIGHT INTO PRODUCTION
-## see https://www.rabbitmq.com/configure.html for further information
-## on configuring RabbitMQ