1. Jenkins and Rails app

2. Agenda
1. Install Jenkins on Ubuntu
2. Install Ruby using RVM
3. Install needed Jenkins Plugins
4. Install needed Gems
5. How Jenkins works
6. Demo

3. Install Jenkins on Ubuntu
# Install
sudo apt-get install jenkins
#-> Home: /var/lib/jenkins
# Start service
sudo service jenkins start
Default Jenkins URL (localhost): 0.0.0.0:8080

4. Install Ruby using RVM
1. Install RVM, Ruby and Rails
# Install requirements (as root user)
sudo apt-get --no-install-recommends install build-essential openssl nodejs
libreadline6 libreadline6-dev curl git-core zlib1g zlib1g-dev libssl-dev gawk
libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt-dev autoconf libc6-dev
libgdbm-dev ncurses-dev automake libtool bison subversion pkg-config libffi-dev
2. Install RVM and Ruby for Jenkins user
sudo su - jenkins
# install RVMcurl -L https://get.rvm.io | bash -s stable
# Make "rvm" as command
echo '[[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm' >> ~/.bashrc
# Install Ruby and Rails
rvm install 1.9.3 && gem install rails

5. Install needed Jenkins' plugins
GitHub API Plugin
This plugin provides GitHub API for other plugins.
GitHub plugin
This plugin integrates GitHub to Jenkins.
Github Pull Request Builder
This plugin builds pull requests in github and report results.
Jenkins GIT plugin
This plugin integrates GIT with Jenkins.
Jenkins Rake plugin
The Rake plugin allows to execute rake task from Jenkins.
Jenkins ruby metrics plugin
This plugin integrates a bunch of ruby coverage tools (Rcov, Saikuro, Rails stats...) to Jenkins. Currently it just
supports Rcov reports.

6. Install needed Jenkins' plugins
GitHub API Plugin
This plugin provides GitHub API for other plugins.
GitHub plugin
This plugin integrates GitHub to Jenkins.
Github Pull Request Builder
This plugin builds pull requests in github and report results.
Jenkins GIT plugin
This plugin integrates GIT with Jenkins.
Jenkins Rake plugin
The Rake plugin allows to execute rake task from Jenkins.
Jenkins ruby metrics plugin
This plugin integrates a bunch of ruby coverage tools (Rcov, Saikuro, Rails stats...) to Jenkins. Currently it just
supports Rcov reports.

7. Needed Gems
# Gemfile
group :test do
gem 'rspec-rails'
gem 'guard-rspec'
gem 'shoulda-matchers'
gem 'rb-inotify', '~> 0.9'
gem 'factory_girl_rails'
gem 'simplecov'
gem 'simplecov-rcov'
gem 'ci_reporter', '1.8.0'
end
# spec/spec_helper.rb
require 'simplecov'
require 'simplecov-rcov'
SimpleCov.formatter = SimpleCov::Formatter::RcovFormatter
SimpleCov.start

8. How it works

9. Demo
• Adding new Github project
• Configuring build
• Building project
• Checking results
• Using Github pull request builder
• Using Github service hook
* Note: For private github project, need to
remove pass phase from ssh key.

10. Links and References
https://wiki.jenkins-ci.org/display/JENKINS/Installing+Jenkins+on+Ubuntu
https://github.com/nicksieger/ci_reporter
https://github.com/janinko/ghprb
https://help.github.com/articles/post-receive-hooks

11. Thank you for listening.