Saurabh Khan - GravityDevOps

Amazon EKS Tutorial: Kubernetes on AWS

Learn Amazon EKS from scratch with a practical Kubernetes on AWS tutorial covering architecture, cluster creation, kubectl, deployments, services, ingress, IAM, cost control, troubleshooting, and next steps.

Saurabh Khan June 22, 2026

CLOUD

Best Cloud Certifications 2026 (AWS/Azure/GCP)

Compare the best cloud certifications for 2026 across AWS, Azure, and Google Cloud. See beginner, architect, DevOps, security, AI/data, cost, study path, and buyer-intent recommendations.

Saurabh Khan June 21, 2026

Developer workstation running local language models with Ollama, laptop terminal, model blocks, and local hardware resources

LLMs & Generative AI

Running LLMs Locally with Ollama: A Practical Developer Guide

Learn how to run LLMs locally with Ollama in 2026, including installation, model selection, CLI commands, REST API examples, app integration, hardware planning, security tips, troubleshooting, and next steps for developers.

Saurabh Khan June 20, 2026

Prometheus and Grafana monitoring pipeline with metrics, dashboards, and alerts

DevOps

Prometheus & Grafana: Monitoring Tutorial

Learn how Prometheus and Grafana work together for DevOps monitoring, with Docker setup steps, scrape configs, PromQL examples, dashboard guidance, alerts, troubleshooting, and production best practices.

Saurabh Khan June 19, 2026

Featured image for What is RAG showing the retrieval-augmented generation workflow from user query to grounded answer.

AI Coding Tools

What is RAG (Retrieval-Augmented Generation)?

Learn what RAG (Retrieval-Augmented Generation) is, how it works, when to use it, how to build a basic RAG pipeline, common mistakes, architecture patterns, and how RAG compares with fine-tuning for real AI applications.

Saurabh Khan June 18, 2026

Uncategorized

AWS vs Azure vs Google Cloud: Which to Learn in 2026

Compare AWS, Azure, and Google Cloud in 2026 with a practical learning guide for beginners and working engineers. See strengths, tradeoffs, certifications, AI and Kubernetes fit, job-market signals, and the best cloud to learn for your goals.

Saurabh Khan June 17, 2026

Artificial Intelligence

Prompt Engineering for Developers

Learn prompt engineering for developers with practical patterns, code examples, testing workflows, prompt templates, common mistakes, and production-ready tips for building reliable AI features.

Saurabh Khan June 16, 2026

Uncategorized

Best CI/CD Tools in 2026 (Compared)

A practical 2026 comparison of the best CI/CD tools, including GitHub Actions, GitLab CI/CD, CircleCI, Jenkins, Azure Pipelines, Harness, TeamCity, Bitbucket Pipelines, and AWS CodePipeline.

Saurabh Khan June 15, 2026

DevOps

GitHub Actions Tutorial: CI/CD from Scratch

A complete, hands-on guide to building Continuous Integration and Continuous Deployment pipelines with GitHub Actions — from your first workflow file to production-grade deployments. 1. What is CI/CD and Why…

Saurabh Khan June 15, 2026

Uncategorized

What is Generative AI? A Beginner’s Guide

A beginner-friendly guide to generative AI: what it is, how it works, practical use cases, limitations, responsible use, and prompt tips.

Saurabh Khan June 13, 2026