Draft: poc: use HNC instead of namespace

Issue: Spike: Explore Hierarchical Namespace Controller (gitlab-org/gitlab#436452 - closed)

Description

• poc: use HNC instead of namespace

Prerequisites

• Install hierarchical namespace controller in your Kubernetes cluster - https://github.com/kubernetes-sigs/hierarchical-namespaces/releases/tag/v1.1.0

Demo

hierarchical-namespaces-poc