Learning Lab for Jenkins IaC/CaC

[steven-terrana]

It would be very helpful to have a learning lab that walks through how to containerize Jenkins and set it up so that the instance comes up preconfigured using:

Plugin Installation: installed during container build time
Jenkins Server Configs: configured using Jenkins Configuration as Code (JCasC)
Job Configurations: Created using Job DSL and invoked from the JCasC file
Everything Else: for things that can’t be easily configured using Job DSL or JCasC, use System Groovy Scripts invoked from JCasC

This learning lab should show how to take the upstream Jenkins community image and customize it for use with SDP:

1. Show how to manually configure a Jenkins instance (plugin installs, instance configs, job configs)
2. Show how to automate that manual configuration by extending the community container image with the strategies outlined above