Simple example to package a Rails app with fpm-cookery. (missing some setup for permissions, etc)

fpm-cookery-rails-app.rb

class RailsApp < FPM::Cookery::Recipe
  description 'A rails app'

  name     'my-rails-app'
  version  '1.0'
  source   '/tmp/foo', :with => :git

  def build
    gemhome = Pathname.pwd.join('.gemhome').to_s

    ENV['GEM_HOME'] = gemhome

    safesystem('gem install bundler')

    safesystem("#{gemhome}/bin/bundle install --deployment --without development:test")
  end

  def install
    share('my-rails-app').install Dir['*']
    share('my-rails-app').install %w(.bundle .gitignore .gemhome)
  end
end

install.sh

fpm-cook fpm-cookery-rails-app.rb
sudo dpkg -i pkg/my-rails-app_1.0+fpm0_amd64.deb
cd /usr/share/my-rails-app
export GEM_DIR=$PWD/.gemhome GEM_PATH=
.gemhome/bin/bundle exec rails s