How can cloud computing and DevOps make a software team more agile? - Andy Kelk - Agile SG 2013

Presented in Agile Singapore 2013 Conference

Agility in software development is oftened defined by the shortening of feedback loops; by providing feedback to users, stakeholders and developers faster, we can act and change more quickly. Many teams are now successful in providing feedback throughout their development cycle with showcases, collaboration and prototyping. However, the "last mile" of getting a feature into production and ensuring it operates effectively once there is still a challenge for many teams.

This presentation focuses on how a combination of cloud computing (broadly defined as public clouds such as Amazon Web Services and private clouds such as OpenStack), infrastructure tools (such as Puppet and Chef) and a collaborative culture (known as DevOps) can help in getting software out faster and keep it running there with fewer outages. The presentation looks at a common deployment pipeline and how the technologies listed above can be utilised to make the pipeline more efficient, robust and effective.

By using cloud computing and DevOps, teams can get products to market faster and shorten their feedback cycles allowing them to compete more effectively in their chosen market.

For further reading, please go to http://www.andykelk.net/agile/the-last-mile-devops-to-make-you-agile

Transcript

1. http://www.flickr.com/photos/thomas-merton/4088168825/
   

   View Slide

2. http://www.flickr.com/photos/kodomut/8736163636/
   

   View Slide

3. http://www.flickr.com/photos/70475110@N00/107794090/
   

   View Slide

4. http://www.flickr.com/photos/tracer/97406346/
   

   View Slide

5. http://www.thinkgeek.com/product/f141/
   

   View Slide

6. http://www.flickr.com/photos/56257809@N03/5256973114/
   

   View Slide

7. http://www.flickr.com/photos/wolf-t/8136494613/
   

   View Slide

8. http://www.flickr.com/photos/harlanh/2539534806/
   

   View Slide

9. http://www.flickr.com/photos/stuckincustoms/940672578/
   

   View Slide

10. http://www.flickr.com/photos/stuckincustoms/940672578/
    set :username, "deploy"
    set :host, "myserver01.mydomain"
    set :path, "/var/www/html/myapp/"
    set :restart, "/etc/init.d/apache2 restart"
    set :checkout, "svn export --force"
    set :repo, "myrepo.mydomain
    desc "Remote deploy and restart of webserver"
    task :deploy, :hosts => "#{username}@#{host}" do
    run "#{checkout} #{repo} #{path}; #{restart}"
    end
    

    View Slide

11. http://www.flickr.com/photos/stuckincustoms/940672578/
    

    View Slide

12. http://www.flickr.com/photos/stuckincustoms/940672578/
    

    View Slide

13. http://www.flickr.com/photos/stuckincustoms/940672578/
    

    View Slide

14. http://www.flickr.com/photos/stuckincustoms/940672578/
    class ntp {
    package { "ntp":
    ensure => installed
    }
    service { "ntp":
    ensure => running,
    }
    }
    node myserver {
    include ntp
    }
    

    View Slide

15. http://www.flickr.com/photos/stuckincustoms/940672578/
    

    View Slide

16. http://www.flickr.com/photos/stuckincustoms/940672578/
    box = 'precise32'
    hostname = 'myserver'
    ram = '256'
    Vagrant::Config.run do |config|
    config.vm.box = box
    config.vm.host_name = hostname
    config.vm.customize [
    'modifyvm', :id,
    '--name', hostname,
    '--memory', ram
    ]
    end
    

    View Slide

17. http://www.flickr.com/photos/dean_browne/4021640740/
    

    View Slide

18. http://www.flickr.com/photos/stephoto/3111970722/
    

    View Slide

19. http://www.flickr.com/photos/rutlo/3059270371/
    

    View Slide

20. http://www.flickr.com/photos/1967chevrolet/3998949198/
    

    View Slide

21. http://www.flickr.com/photos/1967chevrolet/3998949198/
    

    View Slide