Dockerfile in markdo-0.1.11 vs Dockerfile in markdo-0.1.12.alpha

- old
+ new

@@ -1,13 +1,14 @@
-FROM ubuntu:16.04
-MAINTAINER Benjamin Oakes
+FROM alpine:3.4
 
-RUN apt-get update
+RUN echo 'apk update && apk add "$1"' > /usr/local/bin/pkg-apk
+RUN chmod +x /usr/local/bin/pkg-*
+
 # Used for building the gem
-RUN apt-get install -y git
+RUN pkg-apk git
 
-RUN apt-get install -y ruby
-RUN gem install --no-ri --no-rdoc bundler
+RUN pkg-apk ruby
+RUN pkg-apk ruby-bundler
 
 COPY Gemfile $HOME/
 COPY lib/markdo/fake_version.rb $HOME/lib/markdo/version.rb
 
 COPY markdo.gemspec $HOME/