Jenkins 2.x @ MarsJUG 2016

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© 2016 CloudBees, Inc. All Rights Reserved About Jenkins An extensible automation server built on the JVM with hundreds of plugins to support nearly every continuous integration, delivery and deployment pipeline imaginable 2

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© 2016 CloudBees, Inc. All Rights Reserved About me Arnaud Héritier • Long time Jenkins user and community member – August 2007 : My first discussion on the mailing list and my first ticket about Jenkins born Hudson 1.131 • Contributor on various plugins: – Maven, Xcode, Appaloosa, WSClean, maven-deployment-linker, … • Member of the Jenkins infra team – I love to reboot confluence J • Support Engineer at CloudBees, Inc – I help our customers to get the best from Jenkins 3 @aheritier aheritier

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© 2016 CloudBees, Inc. All Rights Reserved Helpful pre-installed plugins • CVS • Subversion • Ant • Maven • JUnit • Javadoc • LDAP • OWASP Markup Formatter • PAM Authentication • Translation Assistance • Windows/SSH Agent 12

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© 2016 CloudBees, Inc. All Rights Reserved • 1.x line is now 11 years old. No, really. • Lots of great stuff has gone into Jenkins in the last couple years but users don’t know about them! • Oh, and some fairly big changes! Why 2.x? 25 ~/Code/jenkinsci/jenkins/war (git:master %)$ mvn dependency:list ... [INFO] org.acegisecurity:acegi-security:jar:1.0.7:compile ... [INFO] org.springframework:spring-core:jar:2.5.6.SEC03:compile ... [INFO] com.google.guava:guava:jar:11.0.1:compile ... [INFO] org.codehaus.groovy:groovy-all:jar:1.8.9:compile ...

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© 2016 CloudBees, Inc. All Rights Reserved Initial Experience is Complicated • Installing Jenkins? That’s easy. – But then there’s finding the right plugins… – And setting up security… – And eighty other things you probably forgot about… •That should be easier !! 27

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© 2016 CloudBees, Inc. All Rights Reserved Continuous Delivery of All the Things • Continuous Delivery is eating the software that is eating the world. • More shops moving in this direction. • Jenkins is a key part of how they get there. • New use cases need new user interfaces - one size doesn’t always fit all. • How can we make adopting Jenkins for CD smoother without limiting the power Jenkins has for other use cases? 28

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© 2016 CloudBees, Inc. All Rights Reserved How do I…where do I…what do I… • jenkins-ci.orgsite is 6 years old, give or take. – Old tooling. – Awkward content discovery. – Not a great way to share documentation and guides. – wiki.jenkins-ci.org is there too, but it’s not easy to navigate. • Brand – jenkins-ci.org ! CI ?!? o Jenkins isn’t only a CI. 29

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© 2016 CloudBees, Inc. All Rights Reserved 2.0 Themes New Jenkins Website Improved “out of the box” user experience User interface improvements Pipeline as code jenkins-ci.org/content/jenkins-20-proposals 31

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© 2016 CloudBees, Inc. All Rights Reserved • Wait, why is this part of the 2.0 release? Can’t you just update the website whenever? • Sure, but like we said, the changes we’re making to the website are to address a lot of the things 2.0 proper is addressing: – On-boarding – Plugin discovery – Documentation – Examples and resources Website as part of release? 33 33

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© 2016 CloudBees, Inc. All Rights Reserved New website: the guts • Previous website – Drupal – Dynamically generated – Hard to contribute to - gotta get an account, submit a blog post, etc… • Current website – Static site generation – Awestruct and Asciidoc – Contributing? Just submit a pull request to https://github.com/jenkins-infra/jenkins.io and tada! 34

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© 2016 CloudBees, Inc. All Rights Reserved Better home for documentation and reference • What we’re calling “Solutions Pages” – Landing pages for collections of docs, blog posts, reference material and advice for specific Jenkins use cases. – i.e., a Ruby solution page, a Docker solution page, etc • A one-stop-shop for finding what you *need* to know for your Jenkins usage. • SOON: The Jenkins definitive guide, a real browsable end- user documentation 35

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© 2016 CloudBees, Inc. All Rights Reserved Out of the Box User Experience • New setup wizard! • Security configuration is part of the setup wizard! – …because we all forget to configure security sometimes. • A better, broader set of plugins included by default! – Less need to go hunting through 1100+ plugins. 39

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© 2016 CloudBees, Inc. All Rights Reserved User Interface Improvements • Improved “New Item” page • Jobs configuration pages are going to be less messy! – Tabs for everyone! • New Global Tool Configuration page • More consistent terminology (exemple: agent vs node vs slave) 42

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© 2016 CloudBees, Inc. All Rights Reserved 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 or directly in your job definition • Built-in global library to share Pipeline scripts, functions, variables across jobs on your master. • Extend the DSL with your own steps. • Multibranch, automatic creation of jobs for new branches! • Durable tasks keep running while the Jenkins master restarts. 45

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© 2016 CloudBees, Inc. All Rights Reserved Pipeline as Code • Execute arbitrary build steps in parallel easily. • Have jobs wait for input from users before continuing to the next step. • No more need to glue multiple jobs together to do one connected pipeline across multiple nodes or repos! • Run part of the job on one node, then switch to another node! • Check out multiple SCM repositories into one job! • Resumability from checkpoints (CloudBees Jenkins Platform only) 46

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© 2016 CloudBees, Inc. All Rights Reserved Pipeline sample 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() } 47 github.com/jenkinsci/pipeline-examples

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© 2016 CloudBees, Inc. All Rights Reserved • Multi-Branch Pipeline Plugin – Job configuration only contains reference to the SCM (Git/GitHub, BitBucket, …) – Jenkins takes Pipeline from Jenkinsfile in SCM – Jenkins creates separate subtasks for branches, builds and reports results separately – Pull-request builds • (+) Same thing for GitHub and BitBucket orgs – 1 single spec in Jenkins for the many projects Pipeline Features. Multi-Branch 51

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© 2016 CloudBees, Inc. All Rights Reserved 2.0 Timeline / Roadmap •April 21st: – Jenkins 2.0 was tagged and released •April 25th: – Jenkins 2.0 is announced •This summer (~July) – The first LTS based on 2.x will be released – 1.x maintenance will be stopped 57

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© 2016 CloudBees, Inc. All Rights Reserved 2.0 Retrospective • Discussing “2.0” started conversations about much bigger and involved changes • The “weekly incremental release” model has left big challenges unaddressed • Aging user interface layer is difficult to substantially improve 60 https://wiki.jenkins-ci.org/display/JENKINS/Jenkins+2.0

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© 2016 CloudBees, Inc. All Rights Reserved Continuous Delivery • Model “Application” and “Environments” in Jenkins • Inform Jenkins of what happens with them – synchronous: build owns the deployment – asynchronous: external reporters/deployment tools notify Jenkins upon completion • Expose what’s “in” Environments – Differences between deployments, e.g. commits, tickets, etc 64

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© 2016 CloudBees, Inc. All Rights Reserved Continuous Delivery • Grow dataset of available Application/Environment information • Close the feedback loop from “production” with monitoring/alerting tooling 65

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© 2016 CloudBees, Inc. All Rights Reserved Storage & Availability • Configurations, build records, logs, fingerprints and artifacts all currently live on master node • Reduce local disk dependency on master node • Storage backend pluggability – BYODB (bring your own data backend) 67

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© 2016 CloudBees, Inc. All Rights Reserved Storage & Availability: Clustering • Break a single-JVM master node into a conceptual “master” across multiple JVMs • Prevent need for “hard downtime” to modify, etc • Must still run as a single instance • Evaluate multi-tenancy via: – Access controls – Per-folder configuration separation – ? 68

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© 2016 CloudBees, Inc. All Rights Reserved • Modern JavaScript toolchain – ES6, React, NPM – js-modules • Client side Extension points – Blue Ocean libraries are built on ES6 and React.js and provide an extensible client side component model • Server Sent Events – UI update in real time Modern Technologies 82

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© 2016 CloudBees, Inc. All Rights Reserved • Jenkins 2.0 is a new start for the community. • But 2.0 is just a drop-in replacement for 1.x – With the exception of the servlet 3.1 (Java EE 7) container pre- requisite (Apache Tomcat 8, Wildfly 8, Glassfish 4, Websphere 9...) and the removal of the AJP connector from the embedded Winstone-Jetty container • All the technical evolutions (like javascript modularization) are in place to revolution Jenkins in a near future. • The usage of major versions is a good change which will enforce to identify and accept breaking changes to – define a clearer roadmap for users ( 3.x, 4.x, …. ) – organize this middle/long term work within the team Conclusion 87

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© 2016 CloudBees, Inc. All Rights Reserved Try out Jenkins 2.x now! • Jenkins 2.x is here !! • Downloadand discover it from – jenkins.io / jenkins-ci.org/2.0 • Give a try to weekly releases and share your feedback with the community – jenkinsci-users@googlegroups.com – #jenkins IRC channel on Freenode 88

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© 2016 CloudBees, Inc. All Rights Reserved Useful links •Jenkins project – Website: https://jenkins.io – GitHub: https://github.com/jenkinsci/ •CloudBees – Website: https://www.cloudbees.com – CloudBees Jenkins Platform o https://www.cloudbees.com/products/cloudbees-jenkins- platform 90

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