chef recipe for `Jenkins` platforms are supported: `Amazon Linux` [Jenkinsをインストールして 、http 8080で接続確認するところまでのレシピです。]

default.rb

#
# Cookbook Name:: jenkins
# Recipe:: default
#
# Copyright 2013, YOUR_COMPANY_NAME
#
# All rights reserved - Do Not Redistribute
#

repo_url = 'http://pkg.jenkins-ci.org/redhat/jenkins.repo'
key_url = 'http://pkg.jenkins-ci.org/redhat/jenkins-ci.org.key'

execute 'register-yumrepos.d ' do
    command "wget -O /etc/yum.repos.d/jenkins.repo #{ repo_url }"
    not_if { ::File.exists?("/etc/yum.repos.d/jenkins.repo") }
    notifies :run, "execute[register-rpm]", :immediately
end

execute 'register-rpm' do
    command "rpm --import #{ key_url }"
    action :nothing
end

package 'jenkins' do
    action :install
end

service 'jenkins' do
    supports :status => true, :restart => true, :reload => true
    action [ :enable, :start ]
end