Deploying a StatefulSet with Manual Persistent Volume (hostPath) in Kubernetes-(Tutorial-I)
Introduction: In Kubernetes, StatefulSets are used to run stateful applications that require stable storage, ordered deployment, and persistent identities.In this guide, we manually create a PersistentVolume (PV) using hostPath, then deploy a StatefulSet that uses this PV for data persistence. In Kubernetes, some applications need to store data permanently and keep their names stable even […]
Kubernetes ServiceAccount and RBAC: Creating Pods with Controlled Permissions
Introduction In Kubernetes, a ServiceAccount is a special type of account used by pods to authenticate and interact with the kubernetes API. Every pod runs as a user, and the ServiceAccount determines what resources the pod can access. Role-Based Access Control (RBAC) is a security mechanism in Kubernetes that allows administrators to control who can […]
How to Use Git the Right Way in a Team Environment.
Introduction. Using Git effectively in a team environment is more than just knowing commands. It is about collaboration, organization, and maintaining a clean history. Teams working on software projects face constant challenges. Code conflicts, inconsistent workflows, and lost changes are common pitfalls. Git provides a solution to these challenges by tracking changes. It allows multiple […]
Deploying a Multi-Tier Todo List Application on Kubernetes -Tutorial 1.
Introduction: This documentation explains how to deploy a multi-tier Todo List Application on Kubernetes. The application has: Learning Objectives: Kubernetes Frontend–Backend Architecture with Services. This second image shows a 2D Kubernetes architecture diagram explaining how a Frontend and Backend application communicate inside a Kubernetes cluster. Here is what the image represents: 1. Backend Deployment 2. Frontend Deployment 3. Services […]
From Zero to Ansible: Installing & Connecting Two Servers Easily.
Introduction. Managing servers manually can be time-consuming, repetitive, and prone to human error. Imagine having multiple servers and needing to install software, update packages, or configure services on each of them one by one. It’s not only tedious but also increases the risk of mistakes. This is where automation tools like Ansible come in, saving […]
Deploying a Simple SQLite App on Kubernetes with Persistent Storage (PVC).
Introduction: This project demonstrates how to run a simple SQLite-based Python application on Kubernetes using a PersistentVolumeClaim (PVC). In real-world applications, data must not be lost when a pod stops, restarts, or gets recreated. Kubernetes solves this problem using persistent storage. SQLite stores data inside a single file (mydb.sqlite). If the pod restarts without persistent storage, this […]
Getting Started With Ansible Playbooks: Your First 10 Tasks.
Introduction. Getting started with Ansible playbooks can feel both exciting and intimidating, especially when you first step into the world of automation and realize just how much power a few lines of YAML can hold. For many beginners, the concept of declaring a desired system state instead of writing lengthy procedural scripts feels almost magical, […]
How To Deploying a Simple Flask REST API on Kubernetes and Docker -Tutorial 1.
Introduction: We use Docker to package (containerize) the application, and Kubernetes to run and manage the container.This project is designed for beginners who want to understand how applications run inside Kubernetes using Pods, Deployments, and Services. What is Docker? Docker is a tool that packages your application into a container. A container is like a small […]
Kubernetes Cluster Setup using Vagrant and Ubuntu 22.04 – Tutorial 1.
Introduction: This project sets up a local Kubernetes cluster using Vagrant and Ubuntu 22.04 for learning and testing.It automatically provisions virtual machines and installs all Kubernetes and container runtime tools.The setup provides a reproducible, isolated, and hands-on environment for practicing DevOps and Kubernetes concepts. Prerequisites: Before starting this setup, ensure you have the following installed on your system: Vagrantfile: […]
Top DevOps Certifications to Kickstart Your Career in 2025.
Introduction. In today’s fast-paced digital era, every organization is striving to deliver software faster, more securely, and with greater reliability. This demand has given rise to one of the most transformative movements in modern IT DevOps. By bridging the gap between software development and operations, DevOps enables teams to collaborate seamlessly, automate workflows, and deliver […]