Set up Multi-node Cluster
We already created k3s-master node previously.
In this document, we'll make 2 worker nodes to set up multi-node cluster, with k3s-master as a master node.
Check master node token
Access to our VM Shell of k3s-master.
multipass shell k3s-master
To create worker node we need 2 values: master node's IP address and node token.1
We already know IP address2, and token can be checked by following command:
sudo cat /var/lib/rancher/k3s/server/node-token
Store this token for later use as your way.
Create worker nodes
We'll create each worker node on individual VM.
Create a new VM for worker node with Multipass, and access to it's VM Shell.
multipass launch jammy --name k3s-worker-1 --memory 2G --disk 50G --cpus 2
multipass shell k3s-worker-1
Type the command below to install K3S. Provide master node's IP address and node token stored before as a parameter.
curl -sfL https://get.k3s.io | K3S_URL=https://<master-ip>:6443 \
K3S_TOKEN=<master-node-token> \
INSTALL_K3S_EXEC="--node-name k3s-worker-1" sh -
Also we can make another worker node k3s-worker-2 with exactly same steps.
Type kubectl get nodes command to check whether the multi-node cluster is configured successfully.
NAME STATUS ROLES AGE VERSION
k3s-worker-1 Ready <none> 3m54s v1.27.7+k3s2
k3s-worker-2 Ready <none> 27s v1.27.7+k3s2
k3s-master Ready control-plane,master 23m v1.27.7+k3s2