When you start your journey with µServices, you should be confident with your delivery lifecycle. In case of mistake, you should be able to navigate to appropriate tag in vcs to reproduce the bug with a test & go though pipeline within 3 hours to production with high confidence of quality. We will discuss set of tools that could help you to achieve this within 3 months on your project. It does not include system decoupling suggestions. And in the same time, if you decide to break down monolith, it is better to do with dev & devOps best practices.

1. Continuous Delivery
with Jenkins

2. Who we are

3. Javatar open source activity
https://github.com/JavatarPro

4. ● Real life use cases, where CI/CD could help
● Theory and best practices from CI/CD experts
● Demo with implementation of some best practices
● Declarative pipeline examples
● Features that already implemented
● Features that we plan to do
● Q&A
Agenda

5. DevOps is deploying on prod manually

6. WhendevOpsisonsickleave

7. Database backward compatibility

8. Database backward compatibility

9. DevOps resources are bottleneck

10. DevOps resources are bottleneck

11. Let’s try to debug

12. Use Release Tag in VCS

13. Contract testing

14. It is hard to maintain knowledge
about best practices
for all programming languages
and different build tools
Context

15. HP LaserJet Firmware use case

16. Jenkins Declarative Pipeline (DP)
Declarative pipeline is open source
Jenkins Global Shared Library,
free of charge for commercial use

17. DP is implementation of best practices
https://martinfowler.com/books/continuousDelivery.html
https://www.thoughtworks.com/continuous-delivery

18. Build Quality In
“Cease dependence on mass
inspection to achieve quality.
Improve the process and
build quality into the product
in the first place.”
W. Edwards Deming

19. Why Continuous Delivery?
● Make releases painless, low risk events
● Reduce time to market
● Increase software quality and stability
● Reduce cost of ongoing software development
● Increase customer and employee satisfaction
○ Creates fast feedback loops

20. Key Principles of Continuous Delivery
● Build quality in
● Work in small batches
● Computers do repetitive task, people solve problems
● Relentlessly pursue continuous improvement
● Everyone is responsible

21. Deployment Pipeline Practices
● Only build your packages once
● Deploy the same way to every environment
● Smoke test your deployments
● Keep your environments similar
● If anything fails, stop the line!

23. Low Risk Releases are Incremental
● Feature toggles
● Blue-green deployments
● Canary releases
● Dark Launching
● Production Immune System

24. If someone threw a server out
of the window, how long would
it take to recreate it?
Infrastructure stability
https://martinfowler.com/bliki/PhoenixServer.html

25. https://github.com/netflix/SimianArmy
How Stable Prod Env Is?

27. DEMO TIME

28. Declarative Pipeline config example

29. Declarative Pipeline config example

30. Declarative Pipeline: service suit

31. Declarative Pipeline: library suit

33. How to securely deploy to production

34. Features that already implemented
● Release suits: service, ui, library, service-with-db
● Build types: maven, npm, python, php, sencha
● Integration of your system/ui tests
● Integration with Sonar
● works with gitlab, github, bitbucket (git & mercurial)
● works with Mesos & Marathon

35. Features that we plan to do
● Blue-green deployments
● Secure deployment to production
● Production Immune System check adoption
● Performance tests easy integration
● Adopt service orchestration with Kubernetes
● Canary releases

36. HP LaserJet Firmware use case

37. Technology adoption life cycle

38. Technology adoption life cycle

39. Takeaways
● Let’s standardize free of chage CI/CD implementation
● Share with us your feedback what is missing
● Use Declarative Pipeline on your project or sub project
● Contribute with Javatar to Declarative Pipeline
● Experiment with Continuous improvements

40. https://github.com/JavatarPro
https://www.thoughtworks.com/continuous-delivery
https://martinfowler.com/bliki/PhoenixServer.html
https://github.com/netflix/SimianArmy
https://martinfowler.com/books/continuousDelivery.html
pipeline@javatar.pr
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