install script

mailcatcher/Dockerfile

@@ -1,15 +1,8 @@
 FROM debian:wheezy
 MAINTAINER Johannes Schickling "schickling.j@gmail.com"
 
-# install ruby 1.9.1
-RUN apt-get update && apt-get install -y ruby ruby-dev build-essential sqlite3 libsqlite3-dev
-
-# install mailcatcher
-RUN gem install mailcatcher --no-ri --no-rdoc
-
-# cleanup package manager
-RUN apt-get remove --purge -y build-essential ruby-dev libsqlite3-dev && apt-get autoclean && apt-get clean
-RUN rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+ADD install.sh install.sh
+RUN chmod +x install.sh && ./install.sh && rm install.sh
 
 # smtp port
 EXPOSE 1025

mailcatcher/install.sh

@@ -0,0 +1,15 @@
+#! /bin/bash
+
+# exit if a command fails
+set -e
+
+# install ruby 1.9.1
+apt-get update && apt-get install -y ruby ruby-dev build-essential sqlite3 libsqlite3-dev
+
+# install mailcatcher
+gem install mailcatcher --no-ri --no-rdoc
+
+# cleanup package manager
+apt-get remove --purge -y build-essential ruby-dev libsqlite3-dev && apt-get autoclean && apt-get clean
+rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+