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Installation.md

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K3s Installation

K3s - Lightweight Kubernetes. Easy to install, half the memory, all in a binary of less than 100 MB.

Install Script

K3s provides an installation script that is a convenient way to install it as a service on systemd or openrc based systems. This script is available at https://get.k3s.io. To install K3s you can easily follow the Quick Start Guide.

After running this installation:

  • The K3s service will be configured to automatically restart after node reboots or if the process crashes or is killed
  • Additional utilities will be installed, including kubectl, crictl, ctr, k3s-killall.sh, and k3s-uninstall.sh
  • A kubeconfig file will be written to /etc/rancher/k3s/k3s.yaml and the kubectl installed by K3s will automatically use it

For detailed information about the installation process and other installation options, please refer to the official K3s website.

Check the Status of K3s

To check that the installation of the K3s service was successful and the Kubernetes cluster is running, execute the following command:

sudo kubectl get nodes

You should see a similar output:

NAME      STATUS   ROLES                  AGE    VERSION
siemens   Ready    control-plane,master   1h9m   v1.27.3+k3s1