Demo Deployment with Kubeadm

Source: https://notes.kodekloud.com/docs/CKA-Certification-Course-Certified-Kubernetes-Administrator/Install-Kubernetes-the-kubeadm-way/Demo-Deployment-with-Kubeadm/page

Summary: This guide explains how to bootstrap a Kubernetes cluster using kubeadm with a master and two worker nodes.

Related Notes

• KodeKloud CKA Index
• CKA Index
• Next: Deploy with Kubeadm Provision VMs with Vagrant

Key Notes

• In this guide, we’ll walk through bootstrapping a Kubernetes cluster using kubeadm. The setup involves three virtual machines (VMs): one control plane (master) node and two worker nodes. We will review the VM network configurations, install the container runtime and Kubernetes components, initialize the control plane, deploy a pod network add-on, and finally join the worker nodes to complete the cluster.
• 1. VM Overview and Network Interfaces
• ip add
• Master Node Network Configuration
• Run the following command on the master node:
• vagrant@kubemaster:~$
• 1:
• lo:
• <
• LOOPBACK,UP,LOWER_U
• link/loopback
• 00:00:00:00:00:00
• 127.0.0.1/8 ::1/128
• 2:
• enp0s3:
• BROADCAST,MULTICAST,UP,LOWER_U
• link/ether
• 02:95:21:8a:38:bd
• ff:ff:ff:ff:ff:ff
• 10.0.2.15/24
• fe80::95:21ff:fe8a:38bd/64
• 3:
• enp0s8: