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Blog posts : "kubernetes"

The Practical Guide to Installing and Configuring k3s Kubernetes Cluster

If you want to test a Kubernetes cluster quickly with low laptop resources or absolutely no cloud billing, k3s is the best option for you. Here's why, especially for testing and development.

Setting up a K3s is very fast and lightweight. A normal k8s cluster needs 2-4 GB RAM just to start. k3s st…

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Mastering Local Kubernetes: How to Install and Configure Minikube

Minikube lets you run a full single-node Kubernetes cluster on your laptop - no cloud bill needed. In this guide, I'll show you how I set it up on Ubuntu (works the same on WSL2) using Docker as the driver. We'll install kubectl, Docker, Minikube, and boot your first cluster in under 10 minutes.

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Install and Configure Complete Kubernetes Cluster Using MicroK8s- Step by Step

MicroK8s is a lightweight, all-inclusive Kubernetes distribution packaged by Canonical via Snap. Unlike kubeadm, it installs a complete single-node or high-availability cluster with a single command snap install microk8s --classic and includes built-in, easy-to-enable add-ons like DNS, storage, and …

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How to Install KIND and Create a Local Kubernetes Cluster - Step by Step

In my home lab, I wanted a quick way to test Kubernetes workloads without spinning up multiple VMs or paying for a cloud cluster. After trying minikube and k3s, I found KIND (Kubernetes on Docker) to be the fastest and cleanest solution. In this post, I'll walk you through how I installed KIND, conf…

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HTML JavaScript generate GUID

Here is a small HTML project I created to generate a new GUID each time the "Generate New GUID" button is clicked. Additionally, this project includes a feature that allows you to easily copy the generated GUID to your clipboard by clicking on a copy icon next to the GUID. The project uses basic HTM…

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Configure multi node master and worker Kubernetes cluster on K3d docker

After configuring basic K3s (Kubernetes on Docker) setup on my lab with default commands. I found it created single node k8s cluster. I wanted a multi node Kubernetes cluster to be setup with multiple masters and workers.

As my K3d server and cluster is already installed and configured using with…

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Install k3d Kubernetes on docker on ubuntu linux server

I was testing few features on Kubernetes for the same I was needed a new Kubernetes cluster to be setup in my lab environment for some POC purpose. Here I am installing a new Kubernetes cluster on ubuntu server. I am using k3d, also called Kubernetes on docker.

K3d is a easy and simple tool that …

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How to install Ansible AWX on Ubuntu using Kubernetes K8S

This is step by step in the detailed installation guide of Ansible AWX operator (Automation controller Tower). On this channel earlier I had written 2 articles on how to install Ansible AWX operator but they are no longer valid as the installation instruction has been changed. For any new changes yo…

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Rancher k3s.yaml permission denied when using kubectl - Kubernetes

While working with Install and Setup your own Kubernetes Cluster with K3s, I installed K3s as a non sudo root user. After complete installation when running any kubectl command I was receiving the below error.

ubuntu@AnsibleAWX:~$
ubuntu@AnsibleAWX:~$ kubectl get nodes
WARN[0000] Unable to re…

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Install and Setup your own Kubernetes Cluster with K3s

K3s is a trivial, lightweight, easy to install, implement, and operate version of standard Kubernetes (K8s). The main part is it is not a fork of Kubernetes. K3s is a certified Kubernetes lightweight distribution. It can be used to run production workload as well. I found it is easier to install K3S…

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MINIKUBE Unable to start VM - This computer doesn't have VT-X AMD-v enabled

While setting up and starting minikube in my lab How to Install Minikube on Ubuntu - Step by Step, I was receiving two errors. First error was related to not running minikube start as root privileges. Which was resolved after existing from the root account and running minikube as a normal user.

B…

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How to Install Minikube on Ubuntu - Step by Step

This is a step by step guide to install Minikube on the Ubuntu Linux system. Minikube is a lightweight Kubernetes implementation that creates a VM on your local machine and deploys a simple cluster containing only one node. Minikube is available for Linux, macOS, and Windows systems. Minikube is ver…

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Using MetalLB as LoadBalancer service to Kubernetes bare metal

The intent of this Load balancer is to spread the workload among different servers or applications. It can be set up on both physical and virtual infrastructures. The load balancer traces the accessibility and availability of pods with the Kubernetes Endpoints API. When it gets an app request for a …

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Setup HAProxy for Ingress Controller Kubernetes Cluster

In earlier article I configured Setup and deploy Ingress controller for Kubernetes on Bare Metal servers. To get the web url working in the browser I had used local hosts file to add DNS host entries under directory /etc, but everytime I try the dns url in the browser it was taking me to the first e…

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Setup and deploy Ingress controller for Kubernetes on Bare Metal servers

After install, setup and configuration of Kubernetes Cluster in my bare metal servers, I wanted to do the POC (proof of concept) of Ingress resource for one of the production environment. 

Kubernetes Ingress is an API entity that lets entry to your Kubernetes services from outside network. It pro…

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Kubernetes kubeadm join could not find a jws signature in the cluster-info ConfigMap for token ID

While configuring Kubernetes cluster using kubeadm tool and joining Worker nodes into the cluster I receiving below error.

kubeadm join token discovery token ca cert hash preflight kubernetes cluster api server jws signature cluster-info configmap control-plane k8s master node worker node.jpg

Another error: Kubernetes kubeadm join couldn't validate the identity of the API server connection refused

Complete articles:
Configure Nginx Load Balancer for the Ku…

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Kubernetes kubeadm join couldn't validate the identity of the API server connection refused

While configuring new worker node in Kubernetes cluster using kubeadm tool I was receiving below error. Basically I was trying to join worker node in the Kubernetes cluster control-plane using kubeadm join command, but it was failing because of multiple reasons.

Kuberenetes error kubeadm join error preflight error execution phase preflight couldn't validate the indentity of the api server connect connection refused init 6443 dial tcp.jpg

Complete articles series on in…

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Install and configure Kubernetes cluster worker nodes using kubeadm - Part 3

In this third part of configuration of Kubernetes cluster I have completed earlier part of a blog Install and configure Kubernetes cluster master nodes using kubeadm - Part 2. I have three Ubuntu server nodes installed in my lab for Worker nodes to add in Kubernetes cluster using kubeadm tool. Below…

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Install and configure Kubernetes cluster worker nodes using kubeadm - Part 3

In this third part of configuration of Kubernetes cluster I have completed earlier part of a blog Install and configure Kubernetes cluster master nodes using kubeadm - Part 2. I have three Ubuntu server nodes installed in my lab for Worker nodes to add in Kubernetes cluster using kubeadm tool. Below…

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Install and configure Kubernetes cluster master nodes using kubeadm - Part 2

After preparing NGINX load balancer for Kubernetes API Server in Configure Nginx Load Balancer for the Kubernetes API Server - Part 1. It is time to use this LB in Kubernetes cluster. I will setup 3 master nodes in control-plane. Before deploying master nodes using kubeadm, I am preparing servers an…

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