Jenkins 2.0 and Beyond

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.

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

Meet Jenkins

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/

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

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

Jenkins weaknesses. Compatibility costs
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• 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• Outdated libs
• Outdated UI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

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

Pipelines in Jenkins 1.x

Pipelines in Jenkins 1.x

Pipelines in Jenkins 1.x

Pipelines in Jenkins 1.x

Pipelines in Jenkins 1.x

Pipelines in Jenkins 1.x

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

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

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

Pipeline as Code

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• 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

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

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

Better Out-of-the-box UX

Better Out-of-the-box UI

User Interface Improvements

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

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

Better Out-of-the-box UX

Better Out-of-the-box UX

Better Out-of-the-box UI

User Interface Improvements

User Interface Improvements

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

2.0 is a drop-in replacement for 1.x

Get Involved
Jenkins is made of people

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

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

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

Feedback

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

Questions and Answers