2015-12-11 Deploying legacy Rails application on Raspberry Pi 2 with Docker

2015-12-11-deploying-legacy-rails-application-on-raspberry-pi-2-with-docker

# Deploying legacy Rails application on Raspberry Pi 2 with Docker
# Mikael Lundin
# http://blog.mikaellundin.name/2015/12/11/deploying-legacy-rails-application-on-raspberry-pi-2-with-docker.html

Dockerfile

# Create a container for replay
FROM ubuntu:14.04
MAINTAINER Mikael Lundin <[email protected]>

# Install prerequisites
RUN apt-get update && apt-get install -y ruby ruby-dev git make libxslt-dev libxml2-dev libpq-dev libmagickwand-dev build-essential nodejs imagemagick

# Install ruby bundler
RUN gem install bundler --no-ri --no-rdoc

# Clone project into /var/www
RUN git clone https://github.com/rubriks/r3pl4y.git /var/www

# Set current working directory
WORKDIR /var/www

# Install all the gems
RUN bundle install --gemfile=/var/www/Gemfile

# Precompile assets
RUN RAILS_ENV=production bundle exec rake assets:precompile

# Set envrionment variables
ENV DATABASE_URL postgres://postgres:<obfuscated>@postgres:5432/r3pl4y_production
ENV facebook_app_id <obfuscated>
ENV facebook_app_secret <obfuscated>
ENV s3_access_key_id <obfuscated>
ENV s3_secret_access_key <obfuscated>
ENV steam_app_secret <obfuscated>
ENV tumblr_api_key <obfuscated>
ENV twitter_consumer_key <obfuscated>
ENV twitter_consumer_secret <obfuscated>

# open port 3000 for http
EXPOSE 3000

# start the application
CMD ["/var/www/script/rails", "server",  "-e production"]