Kubernetes

DevOps Engineer Path

01-local-kubernetes-setup-options

What You Will Learn By the end of this guide you will: Understand what a local Kubernetes environment is and why you need one Know the four …

Why Kubernetes required: Everything You Need to Know

A comprehensive guide to understanding why kubernetes required and which all type of EC2 problems overcome using kubernetes. 🚀 From EC2 …

Jenkins interview questions and answers and Answers - Part 01

Q1 Explain the master-slave architecture in Jenkins? Basic Ans: This architecture is commonly used to distribute the workload and to scale …

Kubernetes Architecture Overview

07 — Kubernetes Architecture Overview “To understand how to use Kubernetes effectively, you must first understand how it is …

Bash + Kubernetes

kubectl Output Formats for Scripting kubectl get pods -o json # full JSON, parse with jq kubectl get pods -o …

Linux for DevOps

Why Every DevOps Engineer Needs Real Linux Fundamentals Docker, Kubernetes, Terraform, and CI/CD runners are not separate from Linux — …

Kubernetes Features

06 — Kubernetes Features “Kubernetes does for your application what a seasoned operations team would do — but automatically, at scale, …

Module 6 - Kubernetes Storage

Module 6 — Kubernetes Storage Table of Contents Introduction to Kubernetes Storage Kubernetes Volumes Persistent Storage Concepts Storage …

06-Exploring-kubectl-commands

Exploring kubectl — Your Kubernetes Command Line Tool kubectl is your primary interface to a Kubernetes cluster. Whether you are running …

05-Install-minikube-on-Mac

Prerequisites (All Platforms) Before installing Minikube, make sure your machine meets these requirements: CPU: 2 cores or more RAM: 2 GB …

04-Install-minikube-on-Linux

Prerequisites (All Platforms) Before installing Minikube, make sure your machine meets these requirements: CPU: 2 cores or more RAM: 2 GB …

LoadBalancer Service

LoadBalancer Service in Kubernetes Table of Contents What is a LoadBalancer Service? Why is it Used? How it Works Where it is Used …

03-Install-minikube-on-Windows

Prerequisites (All Platforms) Before installing Minikube, make sure your machine meets these requirements: CPU: 2 cores or more RAM: 2 GB …

03-Deployment-concepts-with-real-examples

Kubernetes Core Concepts — Deployment 3.1 What Is a Deployment? A Deployment is the recommended and most commonly used way to manage …

NodePort Service

NodePort Service in Kubernetes Table of Contents What is NodePort? Why is NodePort Used? How NodePort Works NodePort vs Other Service Types …

02-What-is-Minikube

What is Minikube? When you’re learning Kubernetes, you don’t need a full cloud cluster running on AWS, GCP, or Azure. You need …

02 - Replicaset concepts with real examples

Kubernetes Core Concepts — ReplicaSet 2.1 What Is a ReplicaSet? A ReplicaSet is a Kubernetes controller whose job is to ensure that a …

Kubernetes Secrets

📋 Table of Contents What is a Kubernetes Secret? Why Do We Need Secrets? How Kubernetes Secrets Work Internally Types of Kubernetes Secrets …

ConfigMap

Table of Contents What is a ConfigMap? Why is ConfigMap Used? How ConfigMap Works Where ConfigMap is Used ConfigMap Structure and Syntax …

ClusterIP Service

Table of Contents What is a ClusterIP Service? Why is ClusterIP Used? How Does ClusterIP Work? Where is ClusterIP Used? ClusterIP vs Other …

01 - Kubernetes Core Concept - Pod

Kubernetes Core Concepts — Pod Before you can deploy real applications on Kubernetes, you need a solid understanding of the three most …

What is Container Orchestration?

05 — What is Container Orchestration? “Orchestration is the automated configuration, coordination, and management of computer systems, …

Monolithic vs Microservices

04 — Monolithic vs Microservices “A well-designed microservices architecture is like a Swiss Army knife — each tool is specialised, …

Problems with Traditional Deployments

03 — Problems with Traditional Deployments “Those who cannot remember the past are condemned to repeat it.” Understanding how …

Why Kubernetes?

02 — Why Kubernetes? “Not everything that is faced can be changed, but nothing can be changed until it is faced.” The same is …

Kubernetes

What is Kubernetes?

01 — What is Kubernetes? “Kubernetes is an open-source system for automating deployment, scaling, and management of containerized …

Module Introduction

Udemy Course: Kubernetes for Beginners to Advanced Author: DB · Category: DevOps & Cloud Native 📚 Topics in this Module # Topic 01 What …

Course Introduction

What You’ll Learn This course is designed for absolute beginners who want to master Kubernetes from scratch. You’ll understand …

Prometheus & Grafana Interview Questions & Answers (2026) Part 01

Q1 Prometheus shows a target as DOWN in the Targets UI. The service is running and accessible. How do you troubleshoot? Intermediate Ans: …

DevOps Engineer Learning Path

Who Is This Path For? This path is for developers or sysadmins making the move into DevOps, or junior DevOps engineers who want a structured …

Migrate from ECS Fargate to EKS With Zero Downtime

The Problem A big-bang cutover from ECS to EKS is too risky — if EKS has issues, you’ve already disconnected ECS. The Strangler Fig …

EKS Pods Getting OOMKilled in Production — Diagnose and Fix

The Problem OOMKilled (exit code 137) means the Linux kernel’s Out-Of-Memory killer terminated your container because it exceeded its …

Python Service Crashing with OOM in Kubernetes

Context: Your Python service deployed in Kubernetes (256 MB memory limit) is being OOM-killed every few hours. The service reads and …

Design an Observability Stack for 50+ Microservices on EKS

The Problem Without centralized observability, you’re flying blind. Debugging requires SSH-ing into pods, grepping logs, and guessing …

Migrate from ECS Fargate to EKS With Zero Downtime

The Problem A big-bang cutover from ECS to EKS is too risky — if EKS has issues, you’ve already disconnected ECS. The Strangler Fig …

Build a Zero-Downtime Deployment Pipeline for Microservices on EKS

The Problem A traditional kubectl apply replaces all pods simultaneously — if the new image is broken, users hit errors until you notice and …

EKS Pods Getting OOMKilled in Production — Diagnose and Fix

The Problem OOMKilled (exit code 137) means the Linux kernel’s Out-Of-Memory killer terminated your container because it exceeded its …

Design an Observability Stack for 50+ Microservices on EKS

The Problem Without centralized observability, you’re flying blind. Debugging requires SSH-ing into pods, grepping logs, and guessing …

Build a Zero-Downtime Deployment Pipeline for Microservices on EKS

The Problem A traditional kubectl apply replaces all pods simultaneously — if the new image is broken, users hit errors until you notice and …

Kubernetes Basics MCQ

1 What is the smallest deployable unit in Kubernetes? A Container B Pod C Deployment D Node Explanation A Pod is the smallest deployable …

Pod Stuck in CrashLoopBackOff — Investigate and Resolve

Overview CrashLoopBackOff is one of the most common Kubernetes errors. It means a container started, crashed, Kubernetes tried to restart …

Kubernetes Interview Questions & Answers — Scenarios & Troubleshooting

Q1 Pod stuck in CrashLoopBackOff - how do you debug it? Intermediate Ans: # Step 1: Check pod status and events kubectl describe pod …

Kubernetes Interview Questions & Answers — Advanced Kubernetes

Q1 What is Helm and why is it used in Kubernetes? Intermediate Helm is the package manager for Kubernetes. It lets you define, install, and …

Kubernetes Interview Questions & Answers — Networking & Security

Q1 What are the types of Kubernetes Services and when do you use each? Basic Ans: Pods come and go all the time - they crash, get replaced, …

Kubernetes Interview Questions & Answers — Compute & Storage

Kubernetes Workloads Q1 What is a Pod? Explain its purpose, lifecycle, networking, storage, and relationship with containers. Basic Ans: A …

Kubernetes Interview Questions & Answers - Fundamentals

kubernetes fundamentals Q1 What is Kubernetes? Explain its purpose, key features, and why it is used for container orchestration. Basic …