[exercise] Introduce manual tasks to represent toil after initial application deployment

[tylerauerbeck]

📝 Description

After the initial deployment of our application, we want to show that not everything has been automated and that there is still some toil that exists in our life. We should come up with a set of tasks that needs to be "hand-rolled" once the rollout of PB completes. The current idea for this could be having to manually upload a base set of cat images to populate Pet Battle (but could include other tasks as well).

✅ A/Cs

• Identify manual tasks (i.e. image upload)
• Show manual process within exercise
• Identify somewhere to store an initial set of base image (github repo that we can source from repeatedly)
• Upload base set of cat images
• Create tasks that would pull image from repository into cluster ( store into PVC)
• Create tasks that would load images from PVC into application
• Create documentation showing student how to accomplish these tasks (and reduce this toil)