From 3ca91b3e217c7cb78706a6943141e4576ca414b8 Mon Sep 17 00:00:00 2001
From: bunix42 <hanjo@bunix.de>
Date: Tue, 22 Nov 2016 13:27:03 +0100
Subject: [PATCH] Update 'Dockerfile'

---
 Dockerfile | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 1bb3c38..848a387 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,10 +2,14 @@ FROM alpine:3.4
 
 MAINTAINER Hanjo Meinhardt <hanjo@bunix.de>
 
+ENV dev_packages="ca-certificates build-base libffi-dev ruby-dev ruby-rdoc ruby-irb"
+  
 RUN apk update && apk upgrade
   
-RUN apk install ruby  
+RUN apk add ruby ruby-json ${dev_packages}
   
 RUN rm -rf /var/cache/apk/*
 
-RUN gem install jekyll
\ No newline at end of file
+RUN gem install jekyll
+  
+RUN apk del ${dev_packages}
\ No newline at end of file