Prepare Kubernetes cluster

This document describes the required tasks to prepare your Kubernetes cluster for deploying StreamNative Platform. To perform these tasks, you must have the appropriate Kubernetes cluster-level permissions.

Create a Kubernetes namespace for StreamNative Platform

Create a Kubernetes namespace to deploy StreamNative Platform into:
```
kubectl create namespace <k8s_namespace>
```
(Optional) Set the new namespace as the current namespace.
```
kubectl config set-context --current -n <k8s_namespace>
```

After setting the new namespace as the current namespace, you do not need to add the --namespace flag in the subsequent kubectl commands as the commands assume the current namespace.