This is a talk I gave at the Lean, Agile and Systems Thinking conference in Melbourne, July 2012. http://www.lastconference.com/ Covering DevOps as a movement. Ideas behind continuous delivery and a sample implementation covering some of those principles in practise using Puppet and Amazon Web Services.

1. Continuous Delivery
in the cloud
i.e. Applied DevOps

2. @nigelfds
github.com/nigelfds

4. Agenda
Ideas behind this workshop
Ideas in practice
Continuous integration
System integration
Production deployment
Summary
Questions

5. Dev Ops
Ops Dev

6. Devops is not something you
build, it’s something you do
#devops

7. “Some people get stuck on the word ‘devops’, thinking
that it’s just about development and operations
working together.
Systems thinking advises us to optimize the whole;
therefore devops must apply to the whole
organization, not only the part between development
and operations.”
— Patrick Debois

10. How do you improve the
delivery process?

11. “How? By fast, automated of your on
the production readiness
feedback
applications every time there is a change
whether
”
code, infrastructure, configuration or
database
Jez Humble
Author
Continuous Delivery

12. Great Message!
We shall do Continuous Delivery

13. Automated implementation of your
system’s build, deploy, test, and
approval processes.

15. Automate
Infrastructure Configuration
as code Management

16. Application
Environment
Infrastructure

17. Agenda
Ideas behind this workshop
Ideas in practice
Continuous integration
System integration
Production deployment
Summary
Questions

18. Sample Application
for #AWS Tweets
Sample
App

19. github.com/nigelfds/aws-twitter-feed

21. I win with
Continuous Integration

22. while (true) {
if (change checked into vcs) then build & test
sleep 60
}

23. aws-twitter-feed repository
while (true) {
if (change checked into vcs) then build & test
sleep 60
}
RPM

24. aws-twitter-feed repository
while (true) {
if (change checked into vcs) then build & test
sleep 60
}
RPM

25. Building Useful Servers

26. Application
Environment
Infrastructure

27. Puppet is IT automation software that helps system
administrators manage infrastructure
throughout its lifecycle, from
provisioning and configuration
to patch management and compliance.

28. Puppet definition for our GO machine

29. Don’t make the Version Control Sad

30. github.com/nigelfds/configuration-
master
Puppet definitions
and AWS scripts

31. To keep things moving, lets kick it off

32. S3 Bucket
Self Configured
Puppet & AWS
Build scripts
Server
Packaged
Scripts
Cloud
Formation
APIs
Create
Machine
Behind the scenes
Nigel’s Laptop

33. AWS CloudFormation gives developers
and systems administrators an easy way to
create and manage a collection of
related AWS resources.

34. Once deployed, you can modify and update the AWS resources in a
controlled and predictable way allowing
you to version
control your AWS infrastructure in the same way
as you version control your software

35. Lets see how we’re doing

36. Repeatable & Continuous

37. In Short

38. Continuous Integration (Using )
Declarative Env. Conf. (Using )
Infrastructure as Code (Using )

39. Agenda
Ideas behind this workshop
Ideas in practice
Continuous integration
System integration
Production deployment
Summary
Questions

40. Everything works by itself

41. But they need to work together

42. Bring in the conductor
=

43. Complex !

44. How does this look in

46. Self Configured GO
Server
App
Server
Cloud
Formation
APIs
Behind the scenes

47. Lets see this on AWS

48. Snapshot -> AMIs
are awesome

49. Boot Test QA
=
Speed Prod Instances

50. Agenda
Ideas behind this workshop
Ideas in practice
Continuous integration
System integration
Production deployment
Summary
Questions

51. To keep things moving, lets kick it off

52. ELB
Remove
ZERO DOWNTIME !
ID-1
ID-2
Autoscaling
Terminate
Instance APP APP
ID-1
ID-2 V2.0
V1.0 V2.0
V1.0
ID-3
ID-1 ID-2
ID-4

53. Lets see this working

54. Agenda
Ideas behind this workshop
Ideas in practice
Continuous integration
System integration
Production deployment
Summary
Questions

55. This stuff is hard to get right

56. Automate
Infrastructure Configuration
as code Management

57. Its about Risk

58. “I do believe that complexity is the enemy.
Until we better understand complexity, our
chances of building better IT systems is
limited. The first thing we must understand
about complexity is that not all complexity is
equal. And the complexity on which most
people focus is probably the least complex
complexity of all.”
Roger Sessions
http://simplearchitectures.blogspot.com/2009/03/cancer-of-complexity.html