The Jenkinsfile
Putting your script in the Jenkins configuration is fine, but there is an alternative, the Jenkinsfile. The Jenkinsfile is simply a file in your Git repository that contains the pipeline script you want to run. So, copy the pipeline script and place it in a file named Jenkinsfile (no extension) in the root of your repository and commit it to Git. Now, go to the configuration of your pipeline project and change the definition from Pipeline script to Pipeline script from SCM. You must now pick your SCM, which is Git, and then configure the connection to your repository. This works exactly the same as in freestyle projects. Additionally, there is a Script Path, which defaults to Jenkinsfile and Lightweight checkout, which you ...
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