{"id":487,"date":"2026-10-14T18:01:23","date_gmt":"2026-10-14T18:01:23","guid":{"rendered":"http:\/\/www.scmgalaxy.com\/tutorials\/2016\/08\/17\/generate-jenkins-job-configuration-automatically\/"},"modified":"2026-10-14T18:01:23","modified_gmt":"2026-10-14T18:01:23","slug":"generate-jenkins-job-configuration-automatically","status":"publish","type":"post","link":"https:\/\/www.devopsschool.com\/blog\/generate-jenkins-job-configuration-automatically\/","title":{"rendered":"Automating Jenkins Job Configuration: Job DSL, Multibranch, Job Generator, and JJB"},"content":{"rendered":"\n

Generating Jenkins jobs automatically helps teams avoid repetitive UI work, reduce configuration drift, and review CI changes in version control. This guide is for DevOps engineers who manage many similar jobs and need a practical map of the available approaches.<\/p>\n\n\n\n

Originally published on 2016-08-17; fully revised and updated.<\/em><\/p>\n\n\n\n

\"Generate<\/p>\n\n\n\n

Main options for automatic Jenkins job generation<\/h2>\n\n\n\n

The original post listed several ways to automate Jenkins configuration. The table below summarizes what each option is meant to do and where to read more.<\/p>\n\n\n\n

Option<\/th>What it automates<\/th>Best fit<\/th>References<\/th><\/tr><\/thead>
Job DSL Plugin<\/td>Programmatic creation of Jenkins projects using a DSL script.<\/td>Teams that want Jenkins job definitions in code, generated by a seed job.<\/td>Plugin page<\/a>
Tutorial<\/a><\/td><\/tr>
Multi-Branch Project Plugin<\/td>Creates sub-projects for each branch from shared configuration.<\/td>Repositories where branch-based job creation is required.<\/td>Plugin page<\/a><\/td><\/tr>
Job Generator Plugin<\/td>Adds a \u201cJob Generator\u201d job type that creates projects when executed.<\/td>Use cases that need runtime generation of jobs from a generator job.<\/td>Plugin page<\/a><\/td><\/tr>
Jenkins Job Builder (JJB)<\/td>Defines Jenkins jobs in YAML or JSON and applies them via CLI.<\/td>Teams preferring YAML-based job definitions outside Jenkins.<\/td>JJB docs<\/a>
Example write-up<\/a><\/td><\/tr>
Templates + parameterized builds<\/td>Uses reusable templates and parameters to reduce manual duplication.<\/td>Organizations creating many similar jobs frequently.<\/td>Case study<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Typical workflow for jobs-as-code in Jenkins<\/h2>\n\n\n\n
\nflowchart TD\n    A[Store job definitions in Git] --> B[Seed job or jenkins-jobs CLI runs]\n    B --> C[Generate or update Jenkins jobs]\n    C --> D[Optional branch-based job creation]\n    D --> E[Builds run with shared standards]\n    E --> F[Changes reviewed and audited in Git]\n<\/pre>\n\n\n\n
Example: generate jobs with Job DSL<\/h2>\n\n\n\n
A common pattern is to keep DSL scripts in Git and execute them from a seed job. The snippet below shows a simple generated freestyle job.<\/p>\n\n\n
folder('services'<\/span>)\n\njob('services\/sample-java-build'<\/span>) {\n  description('Generated by Job DSL'<\/span>)\n  scm {\n    git('https:\/\/git.example.com\/team\/sample-java.git'<\/span>, 'main'<\/span>)\n  }\n  triggers {\n    scm('H\/5 * * * *'<\/span>)\n  }\n  steps {\n    shell('.\/gradlew test'<\/span>)\n  }\n}<\/code><\/span>Code language:<\/span> JavaScript<\/span> (<\/span>javascript<\/span>)<\/span><\/small><\/pre>\n\n\n
A seed pipeline can then apply all DSL files in a repository path.<\/p>\n\n\n
pipeline {\n  agent any\n  stages {\n    stage('Generate jobs'<\/span>) {\n      steps {\n        jobDsl targets: 'jobs\/**\/*.groovy'<\/span>, removedJobAction<\/span>: 'DISABLE'<\/span>\n      }\n    }\n  }\n}<\/code><\/span>Code language:<\/span> JavaScript<\/span> (<\/span>javascript<\/span>)<\/span><\/small><\/pre>\n\n\n
Example: manage jobs with Jenkins Job Builder (YAML)<\/h2>\n\n\n\n
Jenkins Job Builder lets you store human-readable YAML and push it to Jenkins from the command line.<\/p>\n\n\n
- job:\n    name: sample-java-build\n    project-type: freestyle\n    scm<\/span>:\n      - git:\n          url: https:\/\/git.example.com\/team\/sample-java.git<\/span>\n          branches:\n            - main\n    builders<\/span>:\n      - shell: |\n          .\/gradlew test<\/code><\/span>Code language:<\/span> JavaScript<\/span> (<\/span>javascript<\/span>)<\/span><\/small><\/pre>\n\n
jenkins-jobs --conf jenkins_jobs.ini test jobs\/\njenkins-jobs --conf jenkins_jobs.ini update jobs\/<\/code><\/span><\/pre>\n\n\n
Quick decision guide<\/h2>\n\n\n\n