Slides from my talk at Craft Conf 2014 in Budapest

1. Delivering
Continuous Delivery
Continuously
Simon Hildrew
The Guardian
@sihil

2. Delivering Continuous Delivery Continuously
• About the Guardian
• What is Continuous Delivery?
• Continuous Delivery atThe Guardian
• Where to start
• Ongoing debates

4. Founded in 1821

5. Website growth
1999
1m
March 2014
100m
www
monthly
uniques

13. ~15 software ‘products’
~100 deployables

14. Deployment since 1996
1996
manual
2002
copy &
paste
2004
bash
script
2006
more
bash
scripts
2010
python
scripts
2012
scala
!
PRODdeploys/year
10000
2013
riff raff
!
~300~25

15. What is Continuous
Delivery?

16. 1. Software deployable throughout lifecycle
2. Prioritise keeping the software deployable over new
features
3. Fast and automated feedback on production readiness
of product changes
4. You can perform push-button deployments of any
version of the software to any environment on demand
http://martinfowler.com/bliki/ContinuousDelivery.html

17. 5. Anyone can integrate the deployment service into their
own tooling, monitoring and pipelines
(Deployment as a Service)

18. Anna Vignet: https://www.flickr.com/photos/annnna/2228189828

19. Continuous Delivery
at
The Guardian

20. Tooling

21. Riff Raff

22. Riff Raff
• Push button deployment
• Audit history
• Easy Continuous Deployment
• Easy HTTP callbacks to other services
• API for triggering deploys, obtaining deploy history
• Notifications via IRC,AWS SNS topic
• Agnostic to deployment approach

23. Approach agnostic
• Copy JAR/WAR & restart app
• Copy Django/WSGI app & restart httpd
• Autoscaling
• Upload files to S3
• Fastly configuration upload
• Install RPM
• Apply Cloudformation template

27. Demo

28. Processes

29. 1. Software deployable throughout
lifecycle

30. 2. Prioritise keeping the software
deployable over new features

31. 3. Fast and automated feedback on
production readiness of product
changes

32. 4. Push-button deployments of any
version to any environment

33. 5. Deployment as a Service

34. Resulting changes

35. Dev QA Ops
Gatekeeper
Watchman/Overseer
Consultant
Manual regression
tester
Test automation
Feature testing
Product developer
Product developer,
operations & support

36. Change in attitudes
allison: https://www.flickr.com/photos/look_ma_im_flying_pictures/2222370392

37. https://twitter.com/iamdevloper/status/450905958139834368

38. https://twitter.com/benjiweber/status/450916228094492672

40. The danger of not deploying at 5pm
Rob Jewitt: https://www.flickr.com/photos/robjewitt/3413960746

41. Where to start

43. Start small
Les Chatfield: https://www.flickr.com/photos/elsie/8326905483

44. Encourage evangelists
Eden, Janine and Jim:
https://www.flickr.com/photos/
edenpictures/6117948499

45. Make it easy
Maggie: https://www.flickr.com/photos/mk1971/2444862771

46. Follow business priorities
Stuart Chalmers: https://www.flickr.com/photos/gertcha/5164186393

47. Ongoing debates

48. Continuous Deployment?

49. Cost and value

50. Technology vs. Culture?

51. Thanks!
Simon Hildrew
@sihil
simon.hildrew@theguardian.com
http://github.com/guardian/deploy
is hiring!