iam-veeramalla/Jenkins-Zero-To-Hero ? reverse-engineered prompt

Build me a hands on Jenkins learning project that takes someone from a fresh server all the way to a working CI CD setup.

I want to install Jenkins on an EC2 instance, connect Docker so Jenkins can run jobs on a Docker agent, and then show a few practical pipeline examples that actually build and deploy apps. Include a simple first pipeline, a multi stage pipeline, and an example that uses shared pipeline code so it feels like a real team setup.

Also add a full example of deploying an application to Kubernetes in a GitOps style with Argo CD, so the pipeline builds the image, pushes it, and updates the cluster through Git. If it makes sense, include both a Python app flow and a Java Maven app flow so the repo feels useful for different projects.

Keep it beginner friendly, with clear steps and working examples I can run and learn from. If you need to check current Jenkins or Argo CD docs online, go ahead and do that.