Jenkins pipeline conditional branch builds

Question

Using a multibranch pipeline I'd like trigger a slightly different build and deploy procedure depending on which git branch has triggered the build.

The two approaches I can think of are : 1) Use a different jenkins file in each branch 2) Use a series of when {branch 'X'} blocks in the jenkins file

The first approach mean I'll need to be careful when merging branches which I know I'll forget to be at some point.

The second approach is pretty messy but does mean I can use just one Jenkins file.

I can't believe there isn't a better way than these two approaches.

Muatik · Accepted Answer · 2018-02-16 14:58:01Z

Even though I am not a DevOps expert, I can suggest using when conditions in your pipeline so that some stages are only triggered if when conditions are satisfied.

pipeline { triggers { # triggered by changes in every branch } stages { stage('first-stage'){ when { anyOf { branch 'feature-branch/*'; branch 'master' } } steps{ .... } } stage('second-stage'){ when { not { branch 'release/*' } not { branch 'staging' } } steps{ .... } } } }

Or you can have multiple job templates using job-builder plugin. Then you can create different projects with different branch parameters materializing job templates. This is a bit complex and I would go with the "pipeline with when conditions" above.

This link may also help: https://jenkins.io/blog/2017/01/19/converting-conditional-to-pipeline/

The documentation says branch condition only works with multi-branch pipelines.

bosari · Accepted Answer · 2021-03-22 13:27:11Z

This worked for me

when { expression { return env.GIT_BRANCH == "origin/master" } }

Make sure the branch selected in Jenkins configuration Git SCM ismaster

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