1.
Development workflow with
Drupal
featuring Git, Ægir, Jenkins &
Chiliproject.
© 2012 Pol Dell'Aiera (http://about.
me/drupol), Pierre Buyle (http://about.
me/pbuyle)

2.
What is Git ?
Git is a distributed revision control system (VSC or SCM).
Git was initially designed and developed by Linus Torvalds for
Linux kernel development.
Every Git working directory is a full-fledged repository with
complete history and full revision tracking capabilities, not
dependent on network access or a central server.

3.
Why Git is better ?
Pros Cons
● Everything is local ● :-)
● Easy branching
● Fast and small
● Distributed
● Staging area
● Any workflow is possible
● Easy to learn
● Free
● Open Source
Source: http://whygitisbetterthanx.com/

4.
What is Jenkins ?
Jenkins, formerly known as "Hudson Labs", is
the leading open-source continuous
integration server.
Jenkins is an award-winning application that monitors
executions of repeated jobs, such as building a software
project or jobs run by cron.
Among those things, Jenkins focuses on the following two
jobs:
1. Building/testing software projects continuously
2. Monitoring executions of externally-run jobs
Jenkins keeps those outputs and makes it easy for you to
notice when something is wrong.

5.
What is Ægir ?
The Ægir hosting system allows developers and site
administrators to automate many of the common tasks
associated with deploying and managing large websites.
Ægir makes it easy to install, upgrade, deploy, and backup an
entire network of Drupal sites.
Support for multi-server site deployment and management
allows for migrating sites between servers, including large
sites spread across multiple web servers.

6.
What is Chiliproject ?
ChiliProject is a web based project
management system written in Ruby.
It supports your team throughout the complete project life
cycle, from setting up and discussing a project plan, over
tracking issues and reporting work progress to collaboratively
sharing knowledge through a wiki.

7.
How
To
Link
Them
All
Together
?

8.
The big picture

9.
Details: Users & Git
Users communicate with Git.
You can use Git in command
line or your favorite IDE.

10.
Details: Git &Jenkins
In this setup, Git is polled by
Jenkins.
It's Jenkins who check at regular interval the state of the
repositories.
According to the job configuration, Jenkins can be triggered
upon a change in a repository or at regular interval.

11.
Details: Jenkins
Repositories are linked to one or more Jenkins
jobs.
When a job is runned, it can be either Success or Failed.
Jobs starts Phing, a PHP builder tool who will
● Populate the Drupal tree with code from Drupal.org and
your repositories
● Runs checks and tests to validate the code
● Deploy the validated code using Fabric, a python library.

12.
Details: Jenkins: Phing
Jenkins exhaustively use a tool called Phing, a
PHP project build system.
You can do anything with it that you could do with a
traditional build system like GNU make, and its use of simple
XML build files and extensible PHP "task" classes make it an
easy-to-use and highly flexible build framework.
The whole Drupal project is built thanks to this tools called
within and by Jenkins.

13.
Details: Jenkins: Phing: Fabric
Fabric is a python library and command-line tool
for streamlining the use of SSH for application
deployement.
It provides a basic suite of operations for executing local or
remote shell commands (normally or via sudo) and
uploading/downloading files, as well as auxiliary
functionality such as prompting the running user for input, or
aborting execution.

14.
Details: Jenkins
If the job failed to build, Jenkins will not
continue and you'll be able to review the log
and fix the problem.
Jenkins will check code from the repository with multiple
tools (PHP_CodeSniffer, JSLInt, etc.). It will also produce
code statistics and review.
Errors are often triggered by a syntax errors in the code.
If the build is successful, Jenkins will run a python script
and specific command to import the site into Ægir.

15.
Details: Ægir
Ægir will import Drupal websites into it's
database and create Apache virtualhosts
automatically.
With Ægir, you can manage sites, platforms and servers
through the command line and/or the web interface.
This is the perfect tool to deploy Drupal.

16.
Details: Apache
Apache will be reloaded by Ægir and the new
virtualhost newly created will be taken in
account.
You'll be able to log-in to the new site for the
first time and set the administrator password.

17.
References / More information
● Git
○ http://git-scm.com
○ https://drupal.org/documentation/git
● Continuous Integration
○ http://www.martinfowler.com/articles/continuousIntegration.html
○ https://en.wikipedia.org/wiki/Continuous_Integration
● Jenkins
○ http://jenkins-ci.org
○ http://reload.github.com/jenkins-drupal-template
● Phing
○ http://www.phing.info
○ http://reload.github.com/phing-drupal-template/
● Fabric
○ http://fabfile.org
● Ægir
○ http://www.aegirproject.org
○ http://mig5.net/content/aegir-video-drupaldownunder-2012
● Chiliproject
○ https://www.chiliproject.org/