Nimesha Jinarajadasa - DevOps Blog

Nimesha Jinarajadasa

Do You Need a Degree to Be a DevOps Engineer? A 2025 Guide

Do You Need a Degree to Be a DevOps Engineer? A 2025 Guide

The Myth vs. The Reality When you think of a DevOps Engineer, you might picture someone with a shiny Computer Science degree from a top-tier university. That was the old rulebook. In today’s cloud-powered, open-source-fueled, community-driven tech world… the rules have changed. 👉 The truth? A degree is nice to

Kubernetes 1.33: Top 5 Features of “Octarine

Kubernetes 1.33: Top 5 Features of “Octarine

The wait is over—Kubernetes 1.33 has officially arrived, and it’s packed with magical new improvements for developers and operators alike. Code-named “Octarine”, a nod to the mythical “color of magic” from Terry Pratchett’s Discworldnovels, this release continues Kubernetes’ steady momentum of delivering a scalable, secure, and

Day 7: Your Kubernetes Learning Roadmap — What’s Next After the Basics?

Day 7: Your Kubernetes Learning Roadmap — What’s Next After the Basics?

Congratulations! You’ve made it through: * Containers & Docker * Pods * Nodes & Clusters * Deployments & ReplicaSets * Services * ConfigMaps & Secrets You’ve just unlocked the foundation of Kubernetes. But Kubernetes is big. It’s normal to now think: “What do I do next? How do I go from basics to

Day 6: ConfigMaps & Secrets — Managing App Settings and Sensitive Data in Kubernetes

Day 6: ConfigMaps & Secrets — Managing App Settings and Sensitive Data in Kubernetes

Let’s Begin With What You Might Know In traditional apps — whether Node.js, Python, Java, or others — you’ve probably done this before: DB_USERNAME=admin DB_PASSWORD=1234 APP_ENV=production * .env files * Docker run commands * Cloud config panels And sometimes… you (accidentally or lazily) hardcode passwords into

Day 5: Kubernetes Services — How Your App Gets a Stable IP or URL

Day 5: Kubernetes Services — How Your App Gets a Stable IP or URL

Let’s Start With What You Might Know By now, you’ve launched a container, wrapped it in a Pod, deployed it using a Deployment, and scaled it up to multiple Pods. But here’s the next problem: “Okay, my app is running inside Kubernetes… but how do I access

Day 4: Deployments & ReplicaSets — How Kubernetes Runs and Manages Your App

Day 4: Deployments & ReplicaSets — How Kubernetes Runs and Manages Your App

Let’s Begin With What You Might Know So far, we’ve talked about: * How Kubernetes runs containers inside Pods * How those Pods live on Nodes inside a Cluster * And how the Control Plane decides what happens where Now imagine this: You’ve built a great app. You package it

Day 3: Understanding Nodes, Clusters & the Kubernetes Control Plane

Day 3: Understanding Nodes, Clusters & the Kubernetes Control Plane

Let’s Begin With What You Might Know So far, you know that Kubernetes runs your apps inside containers, but not directly. It runs Pods, which wrap around those containers. But now the question is… “Where are these Pods actually running?” “Who decides when, where, and how they run?” To

Day 2: What Are Pods in Kubernetes? And Why Doesn’t It Just Run Containers?

Day 2: What Are Pods in Kubernetes? And Why Doesn’t It Just Run Containers?

Let’s Start With What You Might Know In the Day 1 blog, we introduced containers as a way to package apps with everything they need to run anywhere. And you may have heard that Kubernetes manages containers. So naturally, you might think… 💬 “Kubernetes = Runs containers, right?” Well… yes, but

Kubernetes Basics in a Week – Day 1: What Is Kubernetes and Why Should You Care?

Kubernetes Basics in a Week – Day 1: What Is Kubernetes and Why Should You Care?

Let’s Begin With What You Might Already Know If you’ve ever created a website, built a backend API, or even deployed a simple app on your laptop or a cloud service, you know this: * Apps need to run somewhere — a laptop, a server, or in the cloud * You

Introducing KodeKloud Notes App: Your Ultimate Learning Companion

Introducing KodeKloud Notes App: Your Ultimate Learning Companion

Learning Kubernetes and DevOps can be challenging, especially when juggling multiple resources—watching videos, switching between slides, and trying to copy commands from PDFs. We get it. That’s why we built KodeKloud Notes—a centralized, interactive, and user-friendly platform where you can access all the essential text-based content from

The Ultimate Cloud Career Guide 2025

The Ultimate Cloud Career Guide 2025

☁️ In 2025, cloud computing is not just a tech trend – it’s the backbone of modern IT careers. Nearly all companies now leverage cloud services in some form (around 96% of enterprises use public cloud — Source: spacelift.io), driving enormous demand for cloud-skilled professionals. Global spending on cloud tech is

DevOps Decoded: Expert Answers to Your Toughest Questions (Part 04)

DevOps Decoded: Expert Answers to Your Toughest Questions (Part 04)

This blog post is the fourth in our DevOps Decoded series, featuring expert Q&A from our recent DevOps Skills Gap webinar. 📖 Catch up on previous parts: Part 1, Part 2, and Part 3. Part 4: MLOps & AI Frameworks The convergence of DevOps practices with machine learning operations

DevOps Decoded: Expert Answers to Your Questions (Part 03)

DevOps Decoded: Expert Answers to Your Questions (Part 03)

This blog post is the 3rd installment in our DevOps Decoded series, featuring expert Q&A from our recent webinar: Mind the Gap: DevOps Skill Assessment Made Simple. If you missed it, you can still register to watch the recording. 👉 Don’t forget to check out Part 1 and

Docker Init: Instantly Scaffold Docker Projects

Docker Init: Instantly Scaffold Docker Projects

Docker Init is a game-changer for DevOps engineers who want to containerize applications with speed and precision. In this tutorial, we’ll explore what the docker init command does, why it’s important, and how to use it to containerize a Node.js app in seconds. We’ll also compare

DevOps Decoded: DevOps Skills Gap Webinar Q&A - Part 02

DevOps Decoded: DevOps Skills Gap Webinar Q&A - Part 02

This blog post is the 2nd in our DevOps Decoded series, featuring expert Q&A from our recent webinar: Mind the Gap: DevOps Skill Assessment Made Simple. If you missed it, register to watch the recording. 📖 Read Part 1 Part 2: DevOps with AI Artificial intelligence is rapidly transforming

DevOps Decoded: DevOps Skills Gap Webinar Q&A - Part 01

DevOps Decoded: DevOps Skills Gap Webinar Q&A - Part 01

This blog post is the first in our DevOps Decoded series, featuring expert Q&A from our recent webinar: Mind The Gap: DevOps Skill Assessment Made Simple. If you missed it, register to watch the recording. Part 1: DevOps Implementation and Strategy Organizations of all sizes face significant challenges

Docker Bake: The Smarter Way to Build Multiple Docker Images

Docker Bake: The Smarter Way to Build Multiple Docker Images

What is Docker Bake? Docker Bake is a powerful utility introduced by Docker as part of the docker buildx plugin. Inspired by tools like make and docker-compose, Docker Bake lets you define and run multiple Docker builds in parallel using a single configuration file (docker-bake.hcl or docker-bake.json). If

Gateway API Explained: The Future of Kubernetes Networking

Gateway API Explained: The Future of Kubernetes Networking

Kubernetes has transformed how we build and manage cloud-native applications. But when it comes to networking — especially handling ingress traffic — the traditional Ingress API has shown limitations. That’s where the Gateway API steps in — a powerful evolution designed to handle modern traffic routing needs with more flexibility, extensibility, and

DNS Explained: A Simple Guide

DNS Explained: A Simple Guide

Have you ever wondered how websites like google.com or kodekloud.com actually work behind the scenes? You type a name into your browser and magically land on a webpage. But behind that magic is something called DNS— the Domain Name System. In this beginner-friendly guide, we'll break

Running AI/ML Workloads on Kubernetes Using Kubeflow: A Beginner’s Guide

Running AI/ML Workloads on Kubernetes Using Kubeflow: A Beginner’s Guide

Artificial Intelligence (AI) and Machine Learning (ML) are transforming industries — from healthcare and finance to retail and transportation. But as models become more complex and datasets grow larger, data scientists and engineers need powerful, scalable, and automated infrastructure to manage their workloads. Kubernetes and Kubeflow. In this beginner-friendly guide, we’

The Role of Cloud Security in Your Career Progression

Cloud computing

The Role of Cloud Security in Your Career Progression

In today's rapidly evolving digital landscape, cloud security has transitioned from a supplementary skill to an essential expertise. As organizations increasingly migrate to cloud environments, the complexity and frequency of security threats have escalated, underscoring the critical need for proficient cloud security professionals. The Escalating Significance of Cloud

Mastering Multi-Cloud: Why It’s the Future of Cloud Computing

Mastering Multi-Cloud: Why It’s the Future of Cloud Computing

Introduction Multi-cloud – the practice of using multiple cloud providers and platforms for different workloads – is quickly becoming a cornerstone of modern enterprise IT strategy. Instead of relying on a single cloud vendor, businesses are distributing their applications and services across a mix of public and private clouds to best meet