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JCConf2016 Jenkins Pipeline
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Ching Yi Chan
October 11, 2016
How-to & DIY
2
850
JCConf2016 Jenkins Pipeline
JCConf 2016 For Jenkins Pipeline, see:
https://github.com/qrtt1/JCConf2016_JenkinsPipeline
Ching Yi Chan
October 11, 2016
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Transcript
Jenkins Pipeline 簡介 qrtt1 Ҟᑺ
什麼是 Pipeline • Delivery Pipeline (from Continuous Delivery) • Jenkins
Workflow Plugins • Job Workflow Pipeline • Pipeline 由多個 Step 組成,並且⽀支援 Pause/Resume • Pipeline 內的狀態必需可序列化 (Serializable) • 或宣告為不必列⼊入狀態 @NonCPS 的 function
為什麼是 Pipeline • 依然是 Jenkins Job 的⼀一種,依然很 FreeStyle。 • 為的是
Pipeline as Code • 它是 groovy DSL (domain specific language) و͉છՓ ˢ FreeStyle һ FreeStyle
Pipeline DSL • Jenkins 的 Pipeline 介紹 https://jenkins.io/solutions/pipeline/ • Pipeline
寫作教學 https://github.com/jenkinsci/pipeline-plugin/blob/master/TUTORIAL.md • Pipeline 設計說明 https://github.com/jenkinsci/workflow-cps-plugin/blob/master/README.md • Pipeline Steps Reference https://jenkins.io/doc/pipeline/steps/ • Pipeline 最佳實踐 https://www.cloudbees.com/blog/top-10-best-practices-jenkins-pipeline-plugin ˴ࠅவࡈ ༾Ցਪᕚݟவࡈ
建⽴立 Pipeline Job • Pipeline Script from in-place editor •
Pipeline Script from SCM • Multi-branch Pipeline (from SCM) પᑥԴ͜4$.ٙ˙ό ቇΥఊਖ਼ࣩdʔΝචݬٙ1JQFMJOFІਗܔͭ සપᑥᏐ͜ᗇ᜕4DSJQUႧج
建⽴立 Pipeline 的⽅方式 • Pipeline Script Editor
建⽴立 Pipeline 的⽅方式 • Pipeline Script from SCM
Pipeline 規劃 SCM Checkout War Build Test SCM Commit Deploy
Release
Pipeline Script DEMO/Overview
Steps: node, stage, echo node { stage ('checkout') { echo
'checkout from git' } stage ('build') { echo 'build' } // … skip … } ίࡳɓ̨ዚኜൺ ࡳɓࡈචݬ ਂԬʡჿ
Steps: git stage ('checkout') { echo 'checkout from git' git
url: 'https://my-scm/path/my-project.git' branch: 'master' } optional
Steps: dir, pwd, sh (bat) dir ('project') { pwd() stage
('build') { sh """gradle clean build""" } stage ('test') { sh """gradle check""" } // … skip … }
Steps: step, archiveArtifacts stage ('archive') { step([$class: 'ArtifactArchiver', artifacts:
"build/**/*.war", fingerprint: true]) } stage ('archive') { archiveArtifacts artifacts: "build/**/*.war", fingerprint: true } ᔚٙᄳج อٙᄳج requires Jenkins 2.2+ with newer plugins
Refactoring Pipeline • 使⽤用 Function 合併多個 steps 為⼀一個有意義的動作 • 實作新的
Pipeline Step • 使⽤用 Pipeline Shared Libraries Ыဵək ೌج༨1JQFMJOF4DSJQUԴ͜ ̥ঐપญl https://github.com/jenkinsci/workflow-cps-global-lib-plugin https://wiki.jenkins-ci.org/display/JENKINS/Pipeline+Shared+Groovy+Libraries+Plugin
Pipeline Shared Library • 使⽤用⽅方法 • 啟⽤用 Jenkins ssh (因為
Jenkins 內建的 git repo ⺫⽬目前僅能 ssh auth) • 安裝 Plugin (id: workflow-cps-global-lib) • 使⽤用 git 指令 commit & push 提交 Shared Library 並在 Pipeline Script 開始使⽤用 https://wiki.jenkins-ci.org/display/JENKINS/Jenkins+SSH XFCDPOTPMFฤరQMVHJOҬʔՑd͜DMJٜટܲༀыl
Pipeline 使⽤用⼼心得 • Pipeline as Code 可以⽅方便版本管理 • 內建的 Pipeline
Step 不夠多,得常得依賴 sh 或 bat 呼叫外部指令。 • 間接使⽤用 DevOps Tool 處理 • Ansible, Chef, Puppet • Ant, Maven, Gradle
Q & A