This section is about how to prepare your node(s) to install Rancher for your air gapped environment. An air gapped environment could be where Rancher server will be installed offline, behind a firewall, or behind a proxy. There are tabs for either a high availability (recommended) or a single node installation.

The single node installation is for Rancher users that are wanting to test out Rancher. Instead of running on a Kubernetes cluster, you install the Rancher server component on a single node using a docker run command. Since there is only one node and a single Docker container, if the node goes down, there is no copy of the etcd data available on other nodes and you will lose all the data of your Rancher server. Important: If you install Rancher following the single node installation guide, there is no upgrade path to transition your single node installation to a HA installation. Instead of running the single node installation, you have the option to follow the HA install guide, but only use one node to install Rancher. Afterwards, you can scale up the etcd nodes in your Kubernetes cluster to make it a HA installation.

A. Provision a single, air gapped Linux host according to our Requirements

These hosts will be disconnected from the internet, but require being able to connect with your private registry.

View hardware and software requirements for each of your cluster nodes in Requirements.

Next: Collect and Publish Images to your Private Registry