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Introduction In modern DevOps practices, ensuring zero downtime deployments is critical for user experience. One proven technique to achieve this is Blue-Green Deployment. This strategy reduces downtime and risks by running two identical environments—Blue (current) and Green (new)—and switching traffic between them using a load balancer. In AWS, EC2 instances with an Application Load Balancer […]

Backing up your EC2 instances is essential — especially before major updates, deployments, or patching. While it’s common practice to stop instances before creating AMIs (Amazon Machine Images), you can also create AMIs from running instances. This blog explores that option and walks you through a working Bash script that does it automatically. 🧠 Why

You’ve built and tested your Docker Compose app locally — now it’s time to go live! In this guide, I’ll walk you through deploying a multi-container application using Docker Compose on an AWS EC2 instance. This setup is perfect for staging, testing, or lightweight production environments. 🌐 Why Deploy to EC2? ✅ Full control over

As your application grows, it often needs more than one container — for example, a web server and a database. Managing them manually with separate Docker commands becomes painful. That’s where Docker Compose comes in. It allows you to define and run multi-container Docker apps using a simple YAML file. 🧠 Why Docker Compose? ✅

Docker has become a standard tool in every DevOps engineer’s toolkit. Whether you’re building microservices or deploying scalable containers, understanding how Docker works — and how to use it efficiently — is essential. In this blog, we’ll explore what Docker is, how it helps DevOps workflows, and go through the most commonly used Docker commands

One of the most powerful use cases for Jenkins is to automate Docker workflows. As a DevOps engineer, building and pushing Docker images manually wastes time—let’s fix that. In this tutorial, you’ll learn how to create a Jenkins job that: 🧰 Prerequisites Before we begin, make sure: ✅ Jenkins is installed and running✅ Docker is

In modern DevOps workflows, automation is key—and that’s where Jenkins shines. It’s an open-source automation tool used to build, test, and deploy code continuously. In this post, we’ll go through how to install Jenkins on an EC2 instance and trigger your first CI/CD job. 🚀 What is Jenkins? Jenkins is a Java-based automation server widely

✅ Introduction Once you’ve mastered the basics of Bash, it’s time to go deeper. In this blog, we’ll explore user input, file handling, and error logging—features that make Bash scripts powerful and production-ready. These are essential skills for any DevOps engineer automating real-world server tasks. 🧑‍💻 1. Reading User Input Let’s prompt the user for

✅ Introduction As a DevOps engineer, automation is life. Whether you’re setting up servers, deploying containers, or scheduling cron jobs—Bash scripting helps you do it faster, better, and repeatably. In this blog, I’ll walk you through the core concepts of Bash scripting, ideal for beginners and a quick refresher for experienced engineers. 📘 What is