{"id":3181,"date":"2025-12-16T10:33:53","date_gmt":"2023-03-23T18:50:20","guid":{"rendered":""},"modified":"2025-02-02T00:46:19","modified_gmt":"2025-02-01T23:46:19","slug":"how-to-setup-kubernetes-cluster-with-kubeadm-on-ubuntu-22-04","status":"publish","type":"post","link":"https:\/\/netcloud24.com\/knowledgebase\/how-to-setup-kubernetes-cluster-with-kubeadm-on-ubuntu-22-04\/","title":{"rendered":"How to Setup Kubernetes Cluster with Kubeadm on Ubuntu 22.04"},"content":{"rendered":"

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Kubernetes is a powerful container orchestration platform that helps you manage containerized applications across a cluster of machines. In this guide, we will walk you through the steps to set up a Kubernetes cluster using Kubeadm on Ubuntu 22.04. Whether you are deploying it on a local server or using a Windows VPS <\/a>, this tutorial provides all the necessary steps.<\/p>\n

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Step 1: Update Your System<\/h2>\n

Before installing Kubernetes, make sure your system is up to date. Run the following commands:<\/p>\n

sudo apt update && sudo apt upgrade -y<\/code><\/pre>\n
Keeping your system updated is crucial for security and performance, whether you’re setting it up locally or on a VPS Windows VPS Servers<\/a> platform.<\/p>\n<\/section>\n
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Step 2: Install Required Packages<\/h2>\n
Install required packages and dependencies for Kubernetes:<\/p>\n
sudo apt install -y apt-transport-https ca-certificates curl<\/code><\/pre>\n<\/section>\n
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Step 3: Disable Swap<\/h2>\n
Kubernetes requires swap to be disabled. Disable it using the following command:<\/p>\n
sudo swapoff -a<\/code><\/pre>\n
To make this change permanent, edit the \/etc\/fstab<\/code> file and comment out any swap entries:<\/p>\n
sudo nano \/etc\/fstab<\/code><\/pre>\n<\/section>\n
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Step 4: Add Kubernetes Repository<\/h2>\n
Add the Kubernetes APT repository to your system:<\/p>\n
\r\ncurl -s https:\/\/packages.cloud.google.com\/apt\/doc\/apt-key.gpg | sudo apt-key add -\r\necho \"deb https:\/\/apt.kubernetes.io\/ kubernetes-xenial main\" | sudo tee \/etc\/apt\/sources.list.d\/kubernetes.list\r\n            <\/code><\/pre>\n<\/section>\n
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Step 5: Install Kubeadm, Kubelet, and Kubectl<\/h2>\n
Install Kubeadm, Kubelet, and Kubectl using the following commands:<\/p>\n
sudo apt update\r\nsudo apt install -y kubelet kubeadm kubectl<\/code><\/pre>\n
Enable and start the Kubelet service:<\/p>\n
sudo systemctl enable kubelet\r\nsudo systemctl start kubelet<\/code><\/pre>\n<\/section>\n
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Step 6: Initialize the Kubernetes Cluster<\/h2>\n
To initialize the Kubernetes master node, run the following command:<\/p>\n
sudo kubeadm init --pod-network-cidr=192.168.0.0\/16<\/code><\/pre>\n
After the initialization is complete, follow the instructions provided in the terminal to set up your kubeconfig file:<\/p>\n
mkdir -p $HOME\/.kube\r\nsudo cp -i \/etc\/kubernetes\/admin.conf $HOME\/.kube\/config\r\nsudo chown $(id -u):$(id -g) $HOME\/.kube\/config<\/code><\/pre>\n<\/section>\n
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Step 7: Install a Pod Network Add-on<\/h2>\n
You need to install a network add-on to allow communication between the pods. For example, to install Calico, run the following command:<\/p>\n
kubectl apply -f https:\/\/docs.projectcalico.org\/manifests\/calico.yaml<\/code><\/pre>\n<\/section>\n
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Step 8: Join Worker Nodes to the Cluster<\/h2>\n
If you have additional nodes to join to the cluster, you will need to run the command provided at the end of the kubeadm init<\/code> output on each worker node. It will look something like this:<\/p>\n
kubeadm join :6443 --token  --discovery-token-ca-cert-hash sha256:<\/code><\/pre>\n<\/section>\n
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Step 9: Verify the Cluster<\/h2>\n
To check the status of your Kubernetes cluster, use the following command:<\/p>\n
kubectl get nodes<\/code><\/pre>\n
You should see your master and any joined worker nodes listed as “Ready.”<\/p>\n<\/section>\n