These nodes can either be physical computers or virtual machines, depending on the cluster. Setting up a HA Kubernetes cluster using K3S - Gabriel Tanner Once we have generated the new token, we will use the token to get the join command required for adding existing worker node or new worker node to the Kubernetes cluster. . Setting up Worker Node. Storing this file makes it easy to initialize the master with the exact same configuration as before when restoring it. To join another master follow the below steps: Generate the certificate key kubeadm alpha certs certificate-key Print the join command kubeadm token create --print-join-command Add the following flags to the above join command --control-plane --certificate-key "Certificate-key from step 1" Command should look like below Create a join command using kubeadm and run the join command of each of the new nodes that need to be added. After following the installation steps according to your operating system, you need to check for the IP address of your master node and initialize creating the cluster by: kubeadm init --apiserver-advertise-address 192.168.10.10 --pod-network-cidr=10.244../16. As discussed earlier, we will be using Calico. How to setup 2 node cluster on k3s? - @Upnxtblog The Kubernetes metrics-server is installed, allowing you to use. In the remainder of this article, we'll look at steps three and four in more detail. kubeadm join | Kubernetes Doing a . Put the same host in the etcd section, run the openshift_node_group.yml playbook, and run the etcd scaleup.yml playbook. Once the Master has initialised, additional nodes can join the cluster as long as they have the correct token. Creating Kubernetes Cluster with Master and Worker Nodes In step 3 of that process, add the host of the new data center in [new_masters] and [new_nodes], run the openshift_node_group.yml playbook, and run the master scaleup.yml playbook. Now before setting up the cluster, I have set the hostname of the nodes to master-node, node-1, node-2 respectively, and added . Install a Pod Network (Calico) Next, on our Kubernetes master we need to install a Pod Network.