Stockholm Jenkins Area Meetup

Few small tips about Jenkins pipeline that could save you few hours and some WTF

Andrey DevyatkinLong time Continuous Delivery

practitioner

Impossibility remediation specialist at

Praqma

Open Source enthusiast

@andrey9kin andrey@praqma.com

Early days - freestyle job and UI

Some improvements for visualisation

https://wiki.jenkins-ci.org/display/JENKINS/Delivery+Pipeline+Plugin

Going wild… with Groovy

JobDSL

What is Jenkins job?

What is Jenkins job?

Wait! My plugin is not supported

BuildFlow

And here comes workflow... pipeline

Nested steps?

Pipeline basicsJenkinsfile (Declarative Pipeline)

pipeline {

agent any

stages {

stage('Build') {

steps {

echo 'This is a minimal pipeline.'

}

}

}

}

Multi SCM checkout

node {

git url: 'https://github.com/jglick/simple-maven-project-with-tests.git'

sh "echo Build"

}

node {

git url: 'https://github.com/jglick/some-other-simple-maven-project-with-tests.git'

sh "echo Build"

}

git poll: true, url: 'https://github.com/jglick/some-other-simple-maven-project-with-tests.git'

Environment

node {

git url: 'https://github.com/jglick/simple-maven-project-with-tests.git'

def mvnHome = tool 'M3'

env.PATH = "${mvnHome}/bin:${env.PATH}"

sh 'mvn -B verify'

}

Cool! However...

Stash/Unstash// Run on a node with the "first-node" label.

node('first-node') {

// Stash that directory and file.

// Note that the includes could be "output/", "output/*" as below, or even

// "output/**/*" - it all works out basically the same.

stash name: "first-stash", includes: "output/*"

}

// Run on a node with the "second-node" label.

node('second-node') {

// Run the unstash from within that directory!

dir("first-stash") {

unstash "first-stash"

}

}

Cool! However...

Pipeline shared libraries

Cool! However...

NonCPS

Utility steps

Thanks!

http://www.code-conf.com

www.praqma.com