Installing the prerequisites 

Before we install Fission either locally or in a public cloud we need a few supporting tools. The first tool we have already installed and that is the Kubernetes command-line interface, kubectl. The second tool needed to run Fission, we have not installed yet: Helm (http://helm.sh/).

Installing Helm

Helm is a package manager for Kubernetes and is part of the Cloud Native Computing Foundation, where Bitnami, Google, Microsoft, and the Helm community all contribute to its development.

To install Helm on macOS High Sierra we can use Homebrew; simply run:

$ brew install kubernetes-helm

If you are running Ubuntu Linux then you can download and install Helm using the installation script:

$ curl...