Add initial docker setup for pgsql, mq, redis

mq/Dockerfile

@@ -0,0 +1,17 @@
+FROM debian:stretch
+LABEL maintainer "Jan Dittberner <jan@dittberner.info>"
+
+RUN apt-get update \
+    && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
+    dumb-init \
+    rabbitmq-server \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*.*
+
+EXPOSE 15672
+EXPOSE 5672
+VOLUME /var/lib/rabbitmq/mnesia
+COPY startup.sh /srv/
+
+ENTRYPOINT ["dumb-init"]
+CMD "/srv/startup.sh"

mq/startup.sh

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+#!/bin/sh
+
+set -e
+
+rabbitmq-plugins enable --offline rabbitmq_management
+su -s /bin/sh -c '/usr/sbin/rabbitmq-server' rabbitmq
+