Docker: Commands Cheat Sheet Docker image commands $ docker images # List all images. $ docker pull <image> # Pull an image from Docker Hub. $ docker build -t <name>:<tag> . # Build image from Dockerfile in current directory. $…
Linux for DevOps Engineers: The Essential Skills Roadmap You Actually Need Introduction: Why Linux Skills Matter in DevOps In the world of DevOps, Linux has established itself as the backbone of modern infrastructure. Whether you’re managing cloud deployments, configuring CI/CD…
Are you looking to start or advance your career in DevOps? This guide will help you understand the essential skills you need to succeed in the fast-growing field of DevOps in 2025. What is DevOps? DevOps combines software development (Dev)…
Learn how to implement DevSecOps in your infrastructure as code using Terrascan. This step-by-step guide covers installation, scanning, custom policies, and CI/CD integration to prevent security misconfiguration. You are making a big mistake by not scanning your Terraform for vulnerabilities…
While working on large projects, I encountered many Terraform repositories with no documentation. Going through each repository’s code to understand what it does is painful. I always wished for a genie to come out of a bottle and document everything…
How I switched to DevOps from a Linux support role in just 4 months In 2022, I was 31 years old and stuck in a USA-based MNC doing Linux support work. I had wasted years of my career working the night…
Are you still using AWS access keys and secrets to authenticate your GitHub Actions with AWS in 2025? Please don’t. Unless you want to wake up someday with 1000 GPU machines mining Bitcoin in your account at your expense, footing…
Learn how to deploy a practical EC2 auto-tagging solution on AWS Lambda while mastering fundamental serverless concepts In today’s cloud-first world, developers are constantly seeking ways to build scalable applications without the operational burden of infrastructure management. AWS Lambda—the serverless…
When deploying containerized applications on AWS, you’ll likely find yourself deciding between Amazon Elastic Container Service (ECS) and Amazon Elastic Kubernetes Service (EKS). Both services offer robust container orchestration capabilities, but they cater to different use cases and technical requirements.…
Are you looking to deploy containerized applications on AWS without the complexity of Kubernetes? AWS Elastic Container Service (ECS) offers a fully managed solution that simplifies container orchestration while providing scalability and high availability. In this comprehensive guide, we’ll walk…
In the evolving landscape of Infrastructure as Code (IaC), Terraform has become the industry standard for provisioning and managing cloud resources. While many engineers can write basic Terraform code, senior-level positions require deep expertise in handling complex scenarios, troubleshooting, and…
A step-by-step guide to adding free, self-managed SSL certificates to your Kubernetes application Running On EKS This is the second part of the blog post I had written on Advanced Kubernetes Tutorial Every DevOps Engineer Has Been Searching For, where I…
Deploying a production-ready 3-tier (React frontend+Flask backend+Postgres)application on AWS EKS with real-world setup (EKS, RDS, ALB, Route53, OIDC, IAM, EC2) If you’re in the tech space in 2025, you must have heard the term Kubernetes. If you haven’t, then something…
Why Docker Bake is the Smarter Way to Build and Manage Docker Images Do you enjoy remembering the docker build commands with all the different flags, and arguments? Well, I never did. I had to google the flag and arguments whenever…
DevOps engineers are expected to orchestrate complex systems across multiple environments while maintaining security, scalability, and reliability in today’s cloud-native world. This article shares battle-tested answers to common DevOps interview questions, based on real-world experience with AWS, Terraform, Kubernetes, and…
When Kubernetes breaks in production, you need practical solutions, not theory. After years of firefighting Kubernetes issues across various environments, I’ve compiled these 10 real-world troubleshooting scenarios you’re likely to encounter. Each includes the exact commands and steps to diagnose…
When anyone talks about DevOps, CICD is the first word that comes to mind. CICD stands for Continuous Integration and Continuous Deployment (or Delivery). It’s like having a super-efficient assembly line for your software just like car manufacturers have been…
Docker revolutionized how we run applications by packing the application with the platform dependencies as containers. While Docker is great for individual containers, real-world applications often require multiple containers working together, such as a web server, a database, and an…
If you are new to using Terraform on AWS, then this blog post will show you how to use Terraform to deploy a 3-tier architecture. Scenario: A three–tier architecture on AWS Creating a three–tier architecture on AWS involves setting up three…
Accessing Amazon S3 privately enhances security, improves performance, reduces costs, ensures compliance with regulatory requirements, simplifies network architecture, and provides reliable and managed connectivity. This approach is particularly beneficial for workloads that require secure, high-performance, and cost-effective access to S3.…
