Dockerized for demo

.dockerignore

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+.git
+.bundle
+log
+tmp

Dockerfile

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+FROM instedd/nginx-rails:2.2
+
+## Create a user for the web app.
+RUN \
+  addgroup --gid 9999 app && \
+  adduser --uid 9999 --gid 9999 --disabled-password --gecos "Application" app && \
+  usermod -L app
+
+# Install gem bundle
+ADD Gemfile /app/
+ADD Gemfile.lock /app/
+RUN bundle install --jobs 8 --deployment --without development test
+
+# Install the application
+ADD . /app
+
+# Precompile assets
+RUN bundle exec rake assets:precompile RAILS_ENV=production
+
+# Set permissions for tmp and log directories
+RUN mkdir -p /app/tmp /app/log && chown -R app:app /app/tmp /app/log
+
+# Add config files
+ADD docker/web-run /etc/service/web/run

docker-compose.yml

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+web:
+  build: .
+  links:
+    - db
+  log_driver: gelf
+  log_opt:
+    gelf-address: udp://localhost:12201
+
+db:
+  image: postgres:9.3.5
+  log_driver: gelf
+  log_opt:
+    gelf-address: udp://localhost:12201
+

docker/web-run

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+#!/bin/bash
+source /etc/envvars
+cd /app
+exec su -p -c "/usr/local/bundle/bin/puma $PUMA_OPTIONS -e $RAILS_ENV -b unix:///app/tmp/app.sock" app