Setting up Ingress controller NGINX along with HAproxy for Microservice deployed inside Kubernetes cluster Working with kubernetes and managing the external traffic is like juggling more than two balls. All cloud service provider (GCP,AWS, Openshift, Digital Ocean) comes with their own load balancer which can help us …

When someone talks about managing the kubernetes cluster then I can very much assume that a particular someone is running a lot of kubectl, kubeadm command on terminal and which is quite obvious because managing kubernetes cluster is not as easy as it seems to be. Managing kubernets cluster means checking cluster, …

The objective of this article is to troubleshoot the https kubernetes-dashboard is forbidden error which you might have encountered after setting up the kubernetes dashboard but while trying to access it via browser it is throwing you forbidden error message. This blog is divided into two section - The actual …

While working with kubernetes somewhere down the line you might have faced this error and there could be many reasons behind the issue error execution phase preflight With my experience in working with kubernetes I found that this issue mostly occurs when you are trying to setup kubernetes cluster on your own and since …

TL;DR: This is going to be long post and the objective of this blog post is to deploy Spring Boot Microservice into the kubernetes cluster. The main objective here is to build everything from scratch and what I mean by that - creating a Spring Boot Application RestMicroservice, Building a Docker image and Finally …

Before we jump into the steps of installation, if you are familiar with Puppet, Chef and Ansible (https://github.com/kubernetes-incubator/kubespray) then kubespray is going to be the best choice to set up a Kubernetes cluster. In this article, we will be going through 12 steps starting from setting up vagrant VMs till …

This tutorial is for the ones who want to try out the Kubernetes installation on CentOS (This blog post has been updated and kubernetes installation instructions can be used for CentOS 7 as well as CentOS 8). In this article, I have simplified the installation into 15 steps for installing Kubernetes on CentOS …

You can end with SSL certificate problem: self signed certificate in certificate chain in multiple cases but with my experience these are the most common scenario (Click on individual scenarios for more details) - Scenario 1 - Git Clone - Unable to clone remote repository: SSL certificate problem: self signed …

The root cause for the error is swapping is on master as well as worker node. Fixing the error Step 1 - Disable the swap on both master and worker node (please run the below command on both master and worker node) 1vagrant@master:~$ sudo swapoff -a Step 2 - After disabling the swap, re-run the kubeadm init …