Jenkins Workflow - An Introduction
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The document discusses the Jenkins Workflow Plugin which provides a unified approach to defining build workflows in code using the Groovy domain-specific language. It allows builds to be modeled as pipelines/flows with features like parallelization, input/approval, and visualization. The plugin aims to improve on previous Jenkins approaches by making the entire workflow definable in a single job and providing a global reusable codebase.
Jenkins Workflow - An Introduction
- 2. ● Definition ● Current Landscape ● Jenkins Workflow Plugin ● Where does it fit in? Agenda
- 3. “an orchestrated and repeatable pattern of business activity enabled by the systematic organization of resources into processes that transform materials, provide services, or process information” - Wikipedia “a bullshit management word for a process in which they don’t understand” - Urban Dictionary Definition
- 4. 3rd Party Plugins ● Promoted Builds Plugin ● Build Flow Plugin ● Build Pipeline Plugin ● Parameterized Trigger Plugin Built-in Plugins ● Post-build Action (job chaining) Current landscape
- 5. Issues
- 6. ● Officially supported ● Unification of previous approaches ● Define build workflows in code (Groovy) ● Some DSL elements Jenkins Workflow Plugin
- 7. ● Suspendable (and resumable) ● Define workflow ‘stages’ ● Complex logic (try/catch, parallel jobs, concurrency) ● Human approval (e.g. ready to deploy?) ● Visualisation (basic) ● Snippet generator Features
- 8. ● Global codebase (across projects) ● Entire workflow in a single job ● Test your workflow code(?) What this gives us
- 10. Improved… (Jenkins Job Builder)
- 11. Further Improved... (Jenkins Job Builder + Jenkins Workflow Plugin)
- 12. ● http://udaypal.com/2015-04-08-continuous-delivery- using-jenkins-workflow/ ● http://udaypal.com/jenkins-workflow-getting-started/ Want to find out more?
- 13. Vagrant VM with Jenkins + plugins: ❏ https://github.com/bsnape/vagrant-jenkins Example workflow code: ❏ https://github.com/bsnape/jenkins-workflow-example
- 14. Workflow plugin announcement: ❏ http://jenkins-ci.org/content/workflow-plugin-10 Tour of features and working example: ❏ http://udaypal.com/2015-04-08-continuous-delivery-using-jenkins-workflow/ ❏ http://udaypal.com/jenkins-workflow-getting-started/
Editor's Notes
- #4: What is a workflow? Balance between the two
- #5: these are just some of the ways to create a workflow in Jenkins 10’ / Hub Services have used a mix of these There are also visualisation plugins promoted builds plugin - CDM? build flow plugin - groovy DSL (inspired the Jenkins Workflow Plugin)
- #6: Multiple “build workflow” plugins Plugins do not work with others Unmaintained or abandoned plugins Plugins not keeping pace with Jenkins versions The more plugins you have… the worse these problems get enter… the new Workflow plugin (irony of above image is not lost on me)
- #7: technically a set of interdependent plugins officially supported! confidence
- #9: global codebase promotes re-use (and limits duplication) workflows in code quality code reviews standards how do we currently test Jenkins jobs? We run them! And that’s it...
- #11: Classic method