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Merge pull request #3669 from rancher/catherineluse-patch-1

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Add beginner-friendly context to air gap K3s install steps
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Jen Travinski
2021-11-29 17:28:37 -05:00
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You can install K3s in an air-gapped environment using two different methods. You can either deploy a private registry and mirror docker.io or you can manually deploy images such as for small clusters.
You can install K3s in an air-gapped environment using two different methods. An air-gapped environment is any environment that is not directly connected to the Internet. You can either deploy a private registry and mirror docker.io, or you can manually deploy images such as for small clusters.
# Private Registry Method
@@ -39,22 +39,23 @@ Follow the steps in the next section to install K3s.
# Install K3s
Only after you have completed either the [Private Registry Method](#private-registry-method) or the [Manually Deploy Images Method](#manually-deploy-images-method) above should you install K3s.
### Prerequisites
Obtain the K3s binary from the [releases](https://github.com/rancher/k3s/releases) page, matching the same version used to get the airgap images.
Obtain the K3s install script at https://get.k3s.io
- Before installing K3s, complete the the [Private Registry Method](#private-registry-method) or the [Manually Deploy Images Method](#manually-deploy-images-method) above to prepopulate the images that K3s needs to install.
- Download the K3s binary from the [releases](https://github.com/rancher/k3s/releases) page, matching the same version used to get the airgap images. Place the binary in `/usr/local/bin` on each air-gapped node and ensure it is executable.
- Download the K3s install script at https://get.k3s.io. Place the install script anywhere on each air-gapped node, and name it `install.sh`.
Place the binary in `/usr/local/bin` on each node and ensure it is executable.
Place the install script anywhere on each node, and name it `install.sh`.
When running the K3s script with the `INSTALL_K3S_SKIP_DOWNLOAD` environment variable, K3s will use the local version of the script and binary.
### Install Options
### Installing K3s in an Air-Gapped Environment
You can install K3s on one or more servers as described below.
{{% tabs %}}
{{% tab "Single Server Configuration" %}}
To install K3s on a single server simply do the following on the server node.
To install K3s on a single server, simply do the following on the server node:
```
INSTALL_K3S_SKIP_DOWNLOAD=true ./install.sh