A brief case study by Daviid Stuart of axistwelve.com on configuration management in Government at the Care Quality Commission

1. Case Study: Configuration
management and Deployment at
the CQC Code repository
Internet
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! &$'+.<<.=0$: Deployment ! ()#**&+,
/*0;<# ! -./&'+*.$0
Server ! 1#2&*
Developer ! 3*4'5
CI loop
scheduled
release
Dev
Production
scheduled
release
Test
downstream
dump of DB
(post release)

2. Agenda
✤ Introduction
✤ Configuration management with Puppet
✤ Deployment

3. Introduction
✤ Care Quality Commission regulate, inspect and review all adult
social care service in England
✤ Drupal 6 build with Apache Solr geolocal search
✤ Public can look up local services (GP, Hospital etc)
✤ Agile development methodology
✤ Approx. 15 million hits per month and growing
✤ Tasked with Registering all GP’s this year!
✤ Deployment and configuration management a manual process

4. Introduction cont..
✤ Engaged Axis12 to automate their configuration management and
deployment process
✤ Technologies used
✤ Red Hat ESX Virtual’s
✤ Git
✤ Puppet
✤ Capistrano
✤ Gerrit
✤ Jenkins

5. Configuration Management with
Puppet
class drupal::drush {
exec { "download-drush":
cwd => "/root",
command => "/usr/bin/wget http://ftp.drupal.org/
files/projects/drush-All-Versions-2.1.tar.gz",
creates => "/root/drush-All-Versions-2.1.tar.gz",
}
exec { "install-drush":
cwd => "/var/www/drupal/sites/all/modules",
command => "/bin/tar xvzf /root/drush-All-
Versions-2.1.tar.gz",
creates => "/var/www/drupal/sites/all/modules/
drush",
require => [ Exec["download-drush"], File["/var/www/
drupal/sites/all/modules"] ],
}
file { "/usr/local/bin/drush":
ensure => "/var/www/drupal/sites/all/modules/drush/
drush",
}
}

6. Deployment

7. Questions?