Helm is a client and server type of application. We'll start with a client. Once we have it running, we'll use it to install the server (Tiller) inside our newly created cluster.
The Helm client is a command-line utility responsible for the local development of Charts, managing repositories, and interaction with the Tiller. Tiller server, on the other hand, runs inside a Kubernetes cluster and interacts with Kube API. It listens for incoming requests from the Helm client, combines Charts and configuration values to build a release, installs Charts and tracks subsequent releases, and is in charge of upgrading and uninstalling Charts through interaction with Kube API.
Do not get too attached to Tiller. Helm v3 will remove the server component and operate fully from the client side. At the time of this writing (June 2018), it is still unknown when will v3...
