These tutorials assume you have access to a Kubernetes environment with full cluster admin privileges and have a basic understand of Kubernetes.
If you need to provision a Kubernetes environment, there are a few options I would suggest:
Install the Helm client on your laptop and initialise Helm within Kubernetes with cluster admin priviliges. You can follow the Helm documenation on how to do this.
Lastly, install Kubectl if you have not already so you can interact with Kubernetes.