description
Guide to add nodes to an existing Kubernetes cluster

Adding Nodes to Cluster

Below are the steps to add more nodes to the Kubernetes cluster.

From kubernetes/rke2 directory, use the rke2-server.conf.subsequent.template or rke2-agent.conf.template based on whether the new node is control plane node or worker node. Copy this file to /etc/rancher/rke2/config.yaml in the new node.
Configure the config.yaml with relevant values.
Run the following to set the RKE2 version. Make sure this version is the same across all the nodes. (Refer to RKE2 Releases. Use rke2 --version on an existing node to get the version.)
```
export INSTALL_RKE2_VERSION="v1.28.9+rke2r1"
```
Run the below command to download RKE2.
```
curl -sfL https://get.rke2.io | sh -
```

Run the below commands to start RKE2 node.

systemctl enable rke2-server
systemctl start rke2-server

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