Initialize redis cluster during build

Dockerfile

@@ -2,8 +2,6 @@ FROM phusion/baseimage:0.9.16
 
 MAINTAINER Luigis Box <[email protected]>
 
-CMD ["/sbin/my_init"]
-
 RUN add-apt-repository -y ppa:rwky/redis
 RUN apt-get update -qq && apt-get install -qq redis-server
 
@@ -30,4 +28,13 @@ ADD /nodes/8003/start.sh /etc/service/redis-8003/run
 ADD /nodes/8004/start.sh /etc/service/redis-8004/run
 ADD /nodes/8005/start.sh /etc/service/redis-8005/run
 
+RUN apt-get install -qq ruby
+RUN gem install redis --no-ri --no-rdoc
+ADD bootstrap.sh /bootstrap.sh
+ADD redis-trib.rb /redis-trib.rb
+
 RUN apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+RUN  /sbin/my_init -- /bootstrap.sh
+
+CMD ["/sbin/my_init"]

bootstrap.sh

@@ -1,2 +1,3 @@
 #!/bin/sh
-echo "yes" | ruby redis-trib.rb create --replicas 1 127.0.0.1:8000 127.0.0.1:8001 127.0.0.1:8002 127.0.0.1:8003 127.0.0.1:8004 127.0.0.1:8005
+echo "Creating redis cluster..."
+echo "yes" | ruby /redis-trib.rb create --replicas 1 127.0.0.1:8000 127.0.0.1:8001 127.0.0.1:8002 127.0.0.1:8003 127.0.0.1:8004 127.0.0.1:8005