Automate Jenkins with Groovy

Here are the initial instructions and explanation of the lab environment. Read this while your environment is busy creating itself from nothing. Yes, this violates physics; we know. How fun!

You’ve got a failed build for a software library that triggers a process in another system. The build problem has been corrected so that the next build will succeed, but having a gap in the build numbers will create headaches in the target system. You want to delete the failed build, and reset the build counter. Then, the next successful build will have the build number of the current failed build.

As an admin, you’re concerned that the builds are not in version control, so you want to migrate from Freestyle builds to Pipeline builds. As a first step, you will create a simple Hello World pipeline build using Groovy as an inline script.

Your security officer has initiated a new policy requiring fresh logins for tools, specifically to disallow the Keep me signed in box. You’ll create a startup script that will make this box on the Jenkins login screen disappear.