Jenkins 2.0 is an automation engine that enhances delivery pipelines with a robust plugin ecosystem aimed at continuous integration, automated testing, and continuous delivery. It introduces pipeline-as-code, offers a user-friendly interface, and aims to improve user experience while maintaining compatibility with previous versions. The new features include improved UI, resumable pipelines, and the ability to codify workflows in a Jenkinsfile stored in source repositories.

1. Jenkins 2.0 and Beyond

2. About Jenkins
Jenkins 2.0 is an automation engine with an
unparalleled plugin ecosystem to support all of your
favorite tools in your delivery pipelines, whether your
goal is continuous integration, automated testing, or
continuous delivery.

3. Let’s discuss
●Why Jenkins 2.0 exists
●What is Jenkins 2.0
●Pipelines
●Other stuff

4. Meet Jenkins

6. Jenkins 101
6
• 2005 – Hudson (Sun)
• 2008 – It becomes popular, Duke's Choice
Award
• 2011 – Conflict with Oracle, renaming to Jenkins
• License: MIT (core)
• https://github.com/jenkinsci/

7. Why “automation”?
7
Continuous Integration
Continuous
Integration
Continuous
Delivery
DevOps
Accounting
automation
Home
Automation
CRON + WebUI

8. Jenkins weaknesses. Growth Problems
8
Jenkins used to grow faster than its Dev community

9. Jenkins weaknesses. Compatibility costs
9
• More than 5 years of backward compatibility
• Hudson 2 plugins still work on Jenkins!
• BUT:
• Architecture design issues, complex APIs
• Outdated libs
• Outdated UI
• Plugin integration issues
...Fixes are on the way

10. Pipelines in Jenkins 1.x
●Create jobs
●Trigger “downstream” jobs for next stage
●Easy!

11. Pipelines in Jenkins 1.x

12. Pipelines in Jenkins 1.x

13. Pipelines in Jenkins 1.x

14. Pipelines in Jenkins 1.x

15. Pipelines in Jenkins 1.x

16. Pipelines in Jenkins 1.x

17. Classic Job Configuration UI
● All the options you could ever want
○ and more!
● Consistent for almost a decade

18. Low maintenance
●Many users install Jenkins once
●Usage pattern: “set it, and forget it!”

19. Meet Jenkins 2.0
jenkins-ci.org/2.0

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• CI-to-CD with Pipeline-as-Code
• Improved “out of the box” experience
• Updated easier to use UI
• New Jenkins.xx site
Jenkins 2.0 Themes

21. Pipeline as Code

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22
• Entire flow is one concise Groovy script using Workflow DSL
– For loops, try-finally, fork-join, etc
• Can restart Jenkins while flow is running
• Allocate build nodes and workspaces
– As many as you want, when you want
• Stages throttle concurrency of builds
• Human input/approval integrated into flow
• Standard project concepts: SCM, artifacts, plugins
Key Pipeline Features

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Jenkins Powered CD Pipelines: Jenkins Workflow
Development Production
Commit Build Stage Deploy
? ?
Pipelines Need:
✓ Branching
✓ Looping
✓ Restarts
✓ Checkpoints
✓ Manual Input
Sonar Test
Selenium Test
Perf Test
Jenkins Workflow

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A Real-world CD Pipeline with Jenkins Workflow
Development Production
Jenkins Workflow

25. Pipeline as Code
● Introduce “pipeline” as a new type in Jenkins
● Codify an implicit series of stages into an explicit
.Jenkinsfile in your source repository
● Resumability/durability of the pipeline state
● Extend the DSL with your own steps
github.com/jenkinsci/pipeline-examples

26. Pipeline DSL
node('docker') {
checkout scm
/* Grab the abbreviated SHA1 of our pipeline’s commit.
*/
sh 'git rev-parse HEAD > GIT_COMMIT'
def shortCommit = readFile('GIT_COMMIT').take(6)
stage 'Build'
def image = docker.build("jenkinsciinfra/bind:build-${shortCommit}")
stage 'Deploy'
image.push()
}

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27
CloudBees Jenkins Pipeline Stage View
Jenkins Pipeline Stage View
SOURCE
CODE
CONTROL
SYSTEM
Code
Commit
<
/
>
Development Production
Jenkins Pipeline

28. Better Out-of-the-box UX

29. Better Out-of-the-box UI

30. User Interface Improvements

31. User Interface Improvements
● Improved “New Item” page
● More consistent terminology

32. 2.0 is a drop-in replacement for 1.x
● Evolution not revolution
● No need to wait

33. Better Out-of-the-box UX

34. Better Out-of-the-box UX

35. Better Out-of-the-box UI

36. User Interface Improvements

37. User Interface Improvements

38. User Interface Improvements
●Improved “New Item” page
●More consistent terminology

39. 2.0 is a drop-in replacement for 1.x

40. Get Involved
Jenkins is made of people

41. Try out Jenkins 2.0
●jenkins-ci.org/2.0
●jenkinsci-users@googlegroups.com
●#jenkins on Freenode

42. Get Jenkins 2.0 (alpha) now
jenkins-ci.org/2.0

43. New Community Site: jenkins.io (Beta)
● Modern platform and UI
● Easier to use
● 1-2-3-4 Quickstart
● Centralized Documentation
● Solution-oriented Use
Cases
● Events listings
● Launching March 22nd

44. Feedback

45. Q1
– CloudBees Jenkins Platform: Private SaaS Edition Launched
– Jenkins and CJP Certification
Later in 2016
– Jenkins 2.0 Release
– Jenkins 2.0 LTS Release
– Updated User Interface: Blue Ocean
– CloudBees Jenkins Platform 16.05 Release
– Jenkins World (September)
Recent and Upcoming Activities

46. Questions and Answers