14_scripted_parts_declarative.md

Lab 14: Scripted Parts in Declarative Pipelines

In some rare cases the declarative pipelines and shared libraries might not be enough to implement a certain functionality. There is an actual possibility to integrate scripted elements into declarative pipelines.

In this lab we are going to show you how these elements look like and how they are used.

Note: Keep in mind, when ever such a scripted part is not trivial and simple, you should consider in extracting the functionality into a shared library, which can easily be tested, reused and keeps the orignal pipeline as declarative as possible.

Lab 14.1: Scripts in Declarative Pipelines

Simply adding Groovy code in the declarative pipeline will break the execution. To run custom scripts within the pipeline the script must be surrounded by the script directive as the following example shows

pipeline {
    agent any
        stages {
            stage('script') {
                steps {
                    script {
                        def pipelineType = 'declarative'
                        echo "yeah we executed a script within the ${pipelineType} pipeline"
                    }
            }
        }
    }
}

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End of Lab 14

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