The presentation about DevOps at Scania at the awesome Swisscom days conference in Zürich - 2016-10-28

1. The DevOps journey in an Enterprise
Anders Lundsgård
Senior Engineer
October 28th 2016

2. Who am I?
 Anders Lundsgård
• Senior Engineer (Developer & Technical Architect)
• Scania Connected Services
- Delivery Engineering Team
- Scania Cloud Adoption Team @anderslundsgard

3. What I will talk about
 Very short about Scania
 Pre DevOps
 Our DevOps movement
 Final takeaways
3

4. Scania Connected Services
~200.000 connected vehicles
~80 engineers

5. Clearly pointed out that IT should be strategic and transformational
And that we need to become more agile in our way of working.
2016 - New Managing Director
Clear direction and new organization

6. Disclaimer
The opinions expressed in this presentation
and on the following slides are solely those of
the presenter and not necessarily those of
Scania as a whole.

7. Our software evolution
‘90s
Spaghetti Code
‘00s
Growing monoliths
‘10s
Microservices era

8. The reality today

9. Scania – A growing horse

10. We at infra need to be an enabler for
developers. Enable automatic deployments
and roll-backs.
Creating tools/dashboards with relevant
KPI’s so that the developer can fast and
easily see the consequences of a deployment.
- Mattias Järnhäll, Infrastructure manager
2014.03.03 on Scania social network

11. in the early days…
DevOps movement
More features
quicker Stability

12. More features
quicker Stability

13. Shared understanding and common goals

14. Agile explained

15. Agile explained

16. DevOps
Agile explained

17. Why Agile?
65%

18. Remembering the past… Continuous Integration
Version everything Automation
Claim over Blame
Trunk based
development

19. Remembering the past…

20. CODE
IN PROD
PENDING
CODE
NEW
FEATURES
High focus on Limit Work In Progress
= INVENTORY

21. Version Control
Pull & Push several
times a day
Continuous
Integration
Server Target Servers
(Dev, Staging, Prod)
Version Everything
- Code
- Tests
- Configuration
- Database
- Infrastructure
10 minutes
Automation – Deployment Pipeline
Deploy
Server

22. Sounds weird?

23. Ops…

24. Reveal a Secret

25. Developers care about
QA and Stability
if…
they get accountable

26. GUI
Database
Infra
Business
Logic
Networking Storage
OS
Integration
Service
1
Service
2 Service
5
Service
7
Service
8
Service
10
Service
12
Service
14
Service
3
Service
4
Service
6
Service
9
Service
11
Service
15
Middleware
Service
13
User Interface
Security Monitoring
Even with Continuous Integration,
fast delivery is hard with 50+
engineers and a large codebase.
Monolith

27. All Infra
needs
User Interface
Service
1
Service
2 Service
5
Service
7
Service
8
Service
10
Service
12
Service
14
Service
3
Service
4
Service
6
Service
9
Service
11
Service
15
Service
13
All Infra
needs
All Infra
needs
All Infra
needs
All Infra
needs
All Infra
needs
All Infra
needs
All Infra
needs
GUI
Database
Infra
Business
Logic
Why Microservices?
1. Autonomous teams
2. Build, Test, Deploy SPEED
Microservices

28. Deploy != Release
Business
decision
Feature Team
concern
Feature Team
concern

29. Feature Toggle

30. Tilda 4 makes release to UK market

31. Zero Downtime

32. Visibility

33. 10.000+ unique portal users per month

38. Check-in frequency
Project: Scania Connected Services

39. Change Stop
0
20
40
60
80
100
120
140
160
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
Prod Deploys per week during 2016
* Infrastructure changes not included

40. DevOps…

41. Feature
Team
Feature
Team
Feature
Team
Feature
Team
Integration
OS
Web
Monitoring
Change
Management
Network
Security
IaaT
Infra/
Operations
GUI
Business
Logic
Database
In the past
Database

42. Level 1
Level 2+3
Infrastructure As A Service
Infra/
Operations
Feature
Team
Feature
Team
Feature
Team
Feature
Team
GUI
Business
Logic
Database
Virtual Machine ESB Network Change Management Database Monitoring
Today

43. Infrastructure As A Service
Infra/
Operations
Feature
Team
Feature
Team
Feature
Team
Feature
Team
GUI
Business
Logic
Database
Virtual Machine Web server Load Balancer Change Management Monitoring
You build it You
run it!
Infrastructure
as code
Cultural Technical

44. 44
Enterprise IT challenges
Different types of customer needs
? !
I have an app.
Can you install it
for me?
Can you help me
to help myself?

45. 45
Enterprise IT challenges
The Legacy vs Cloud First

46. “All in” on DevOps is harder in EU than in US

47. Collaboration > Automation
Good reads
Automation Business impact
Pair Programming
Collocate with coffee machine

48. 11,6

49. 49
200
301
401
404
500

50. 50
200
301
401
404
500

51. Final takeaways…

52. “Don’t fight stupid, make more Awesome”

53. Use your technical skills
Poor little me.
I’m just a Dev.
What can I do?
Zero Downtime
Feature Toggles
Deploy becomes a part
of your daily job
Deploy is decoupled
from Release

54. Pipeline
Tests
Code
‘90s ‘00s ‘10s
Software Delivery Through the Decades
Driven by
Deadlines
Driven by
Business metrics

55. Your Heroes are your Bottlenecks!
Version Control
Single point of
failure
Single point of
knowledge

56. When a Real Hero Quits…

57. Thank You!
Anders Lundsgård
@anderslundsgard