Helm practice: using statefulsets

[frmadem]

Motivation

A StatefulSets is a K8s artifact useful in several scenarios. This exercise helps us to understand the building of a complex chart and the utility of statefulsets.:

Content

1. Build a chart that uses a statefulset to have predictable NetworkIDs.
2. Create a headless service for the pods.
3. Test our application and run it on a kind cluster.

[frmadem]

We could use pdftron for the practice.