What is Auto Scaling in Kubernetes? — Kubernetes AutoScaling lets you automate the process of scaling up and scaling down the nodes and pods based on the demand. Autoscaling helps us optimize the cost and resources of the cloud in line with demand. The Kubernetes autoscaling mechanism uses two layers: Pod-based scaling — supported by the Horizontal…

Recently I have deployed Cassandra on Kubernetes AKS cluster by following the steps from https://docs.k8ssandra.io/install/aks/ . K8ssandra provides a production-ready Apache Cassandra cluster on Kubernetes Cluster. All required tools like reaper for repairs, medusa for backup, and monitoring of the Cassandra are integrated as part of the cluster setup. k8ssandra…

Recently I have taken HashiCorp Certified Terraform Associate Exam and I wanted to share some tips and hopefully, it will help others. The exam will be conducted online with psi exams. proctored monitoring you during the exam. Exam duration is 1 hour and you can get anywhere between 57 to…

Jenkins Pipeline is a suite of plugins that supports implementing and integrating continuous delivery pipelines into Jenkins. The steps required for CICD will be written in a text file called Jenkinsfile. This file should be present in your git repository root directory. …

on September 30th Let’s Encrypt DST Root CA X3 Expired. Websites using Let’s Encrypt certificates did not observe much impact. As most of the Web browsers are already having Trusted ISRG Root X1. It’s Majorly applications that provide APIs to authenticate using certificates that are impacted. …

Upgrading Kubernetes Managed clusters is a bit different from the self-managed clusters. When it comes to AKS Kubernetes clusters upgrades can be done in multiple ways to achieve minimal impact in production environments. More importantly, the Kubernetes upgrade should be done sequentially. You can not skip the minor versions. Suppose…

For the docker file and application code refer to the GitHub repo https://github.com/reddeppas/basic_k8s_triaining What is a Container? A Container is a package of software that includes all dependencies: code,runtime,configuration and system libraries so that it can run on any host system. Building blocks of Containers Namespace,CGroup,and union file system Familiar…