1. Host your Ruby on
Rails CMS on the
cloud – for free!
Michalis Polakis, TaratsaCamp, Chania 7/7/2001

2. about me
Michalis Polakis
=> csd.uoc.gr, ins1@cwi.nl,
soundcloud.com, filoxena.com
=> photos
=> entrepreneurship

3. about this talk
=> ruby
=> on Rails
=> refinery cms
=> git
=> cloud
=> heroku
=> put the pieces together

4. ruby
=> user friendly
=> dynamic, reflective, garbage
collected, interpreted
=> jruby, ironruby, macruby

5. Ruby examples

6. ruby on rails
=> open source web app framework
=> Model-View-Controller (MVC)
=> Convention over Configuration
– Reduce decisions. If Order model => orders db table
=> Don't Repeat Yourself (DRY)
– Every piece of knowledge must have a single,
unambiguous, authoritative representation

7. model view controller

8. refinery cms
=> most popular rails cms
=> “follows the rails (3) way”
=> simple, modular, extendable
=> good enough

9. git
=> distributed revision control system
=> by Linus for Linus
=> every Git working directory is a full-
fledged repository with complete history
and full revision tracking capabilities
=> independent of network access or
central server

10. basic git workflow (from scratch)
$ cd (project-directory)
$ git init
$ (add some files)
$ git add .
$ git commit -m 'first commit'

12. heroku
=> user friendly web app
deployment/management/scaling
– rack apps(rails, sinatra)x, node.js, clojure
=> sits on top of AWS
– goes down when AWS goes down
=> easy to migrate away from
– no lock-in
=> stack promotes best practices

13. heroku cont.
=> basic package can get you a long
way
=> read-only filesystem
=> git-based deployment

14. putting the pieces together
=> prerequisites : ruby, rubygems, rails,
sqlite3/mysql, git
$ gem install refinerycms heroku
=> set your heroku credentials/ssh keys
$ refinerycms mysimplecms –heroku
=> edit Gemfile, add “ gem 'rake', '~> 0.8.7' ”
$ bundle update

15. putting the pieces together cont.
$ git init
$ git add .
$ git commit -m “first commit!”
$ heroku create
$ git push heroku master
$ heroku rake db:migrate

17. references
=> wikipedia
=> ruby-lang.org, rubyonrails.org
=> refinerycms.com
=> git-scm.com
=> heroku.com
=> http://devcenter.heroku.com/articles/quickstart
=> cloud photo courtesy of jonicdao
(www.flickr.com/photos/jonicdao/3450233884)

18. thanks!