Docker additions

.dockerignore

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+spec
+log
+tmp
+coverage
+public/system

Dockerfile

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+FROM bterkuile/ruby-base
+
+MAINTAINER Benjamin ter Kuile <bterkuile@gmail.com>
+
+# Add 'web' user which will run the application
+RUN adduser web --home /home/web --shell /bin/bash --disabled-password --gecos ""
+
+# Separate Gemfile ADD so that `bundle install` can be cached more effectively
+ADD Gemfile      /var/www/
+ADD Gemfile.lock /var/www/
+RUN chown -R web:web /var/www &&\
+  mkdir -p /var/bundle &&\
+  chown -R web:web /var/bundle
+RUN su -c "cd /var/www && bundle install --deployment --without development test --path /var/bundle" -s /bin/bash -l web
+
+# Add application source
+ADD . /var/www
+RUN chown -R web:web /var/www
+
+USER web
+
+WORKDIR /var/www
+
+CMD ["bundle", "exec", "foreman", "start"]