Prabhat Korshub Blogs

  Introduction Welcome to The Complete Jenkins DevOps CI/CD Pipeline Bootcamp —your all-in-one guide to mastering Jenkins, the backbone of modern DevOps automation. If you’ve ever wondered how tech giants like Netflix, Amazon, or Spotify push updates seamlessly, the answer lies in Continuous Integration and Continuous Deployment (CI/CD) —powered by tools like Jenkins . Jenkins is not just another tool; it’s the heart of automation in DevOps. It helps developers integrate, test, and deploy code faster while maintaining quality and consistency. Understanding DevOps and CI/CD What is DevOps? DevOps is the perfect blend of Development and Operations . It bridges the gap between developers and IT teams, promoting faster delivery, collaboration, and automation across the software lifecycle. The CI/CD Philosophy CI/CD stands for Continuous Integration and Continuous Deployment . Continuous Integration (CI): Automates code integration and testing. Continuous Deployment (C...

 In today’s fast-paced software development world, containerization has become a game-changer. Among all container technologies, Docker leads the way by enabling developers and DevOps engineers to build, ship, and run applications seamlessly. This Docker MasterClass will walk you through the key components: Docker, Docker Compose, Docker Swarm , and how they fit into DevOps practices . 🚀 What is Docker? Docker is an open-source containerization platform that allows you to package applications with all their dependencies into lightweight, portable containers. Unlike traditional virtual machines, containers share the same OS kernel, making them faster, efficient, and resource-friendly . Key Benefits of Docker: Consistency across development and production. Lightweight and faster than virtual machines. Simplifies deployment and scaling. Easy integration with CI/CD pipelines. 🛠️ Docker Compose: Orchestrating Multi-Container Apps While Docker runs a single con...

  Introduction If you’ve ever worked with cloud computing, DevOps, or modern application development, chances are you’ve already come across YAML . From Kubernetes to Docker Compose, YAML has quietly become the backbone of configuration files. But understanding YAML is just the beginning — mastering JSON and JSONPath will take your skills to the next level. This article is your complete roadmap to becoming a YAML, JSON, and JSONPath master from zero to pro . Understanding the Basics of YAML YAML stands for “ YAML Ain’t Markup Language. ” It’s a human-friendly data serialization format designed for configuration and data exchange. Unlike XML or JSON, YAML focuses on simplicity and readability. Think of YAML as the “plain English” of data formats — clean, structured, and easy to scan. Why Learn YAML? YAML is everywhere in modern tech. Here’s where you’ll encounter it: DevOps : Kubernetes manifests, Docker Compose files Automation : Ansible playbooks, CI/CD pipelines ...

  If you’ve ever shipped code that worked on your laptop but exploded in production, welcome—this guide is your fast-track from confusion to confidence. We’ll start at zero, containerize an app with Docker, run it locally, then scale it on Kubernetes with modern DevOps practices like CI/CD, GitOps, and observability. You’ll get clear mental models, copy-paste-ready snippets, and a battle-tested workflow you can reuse at work. Why DevOps, Why Now DevOps is not a tool—it's a culture backed by automation. The goal: deliver value faster, safer, and more reliably. Docker standardizes “how we run,” Kubernetes standardizes “where we run,” and CI/CD glues everything together. The Dev + Ops Gap (and How to Bridge It) Developers want speed; Ops wants stability. Bridge the gap with versioned infrastructure, immutable images, automated testing, and continuous delivery. Outcome: repeatable releases, smaller blast radius, happier teams. CI/CD at a Glance Continuous Integrat...

  In the world of Site Reliability Engineering (SRE), DevOps, and Cloud Operations , monitoring and observability are not optional—they are critical to ensuring uptime, performance, and customer satisfaction. Among the many tools available, Grafana stands out as one of the most powerful platforms for data visualization, querying, alerting, and automation. This guide will show how SREs, DevOps engineers, and cloud teams can leverage Grafana in 2025 to streamline operations, respond faster to incidents, and automate workflows. 🚀 Why Grafana? Open-source and flexible – integrates with 100+ data sources (Prometheus, Loki, InfluxDB, Elasticsearch, CloudWatch, Azure Monitor, etc.). Unified observability – one dashboard for metrics, logs, and traces. AI & automation support – Grafana Labs is investing heavily in AI-powered insights. Enterprise-ready – secure, scalable, and used by global organizations. 📊 1. Data Visualization in Grafana Visualization is at ...

  Introduction to Amazon Style Microservices If you’ve ever wondered how Amazon manages millions of transactions, delivers personalized recommendations, and ensures near-perfect uptime, the answer lies in microservices . Instead of running on a single, massive application, Amazon’s platform relies on thousands of small, independent services working together seamlessly. Microservices are like tiny puzzle pieces. Each piece has its own job, but when combined, they create the bigger picture. Amazon’s approach stands out because of its scale, resilience, and customer-first design . Core Principles of Amazon Style Microservices Loose Coupling: Services are independent, so if one fails, it doesn’t break the entire system. Independent Scalability: Each service can be scaled separately based on demand. API-First Design: Communication happens through APIs, making integrations smoother. Decentralized Data Management: Each service owns its data, avoiding bottlenecks. Th...

  Introduction In today’s cloud-native world, Kubernetes has become the backbone of container orchestration. It powers applications at scale for leading enterprises worldwide. But knowing Kubernetes in theory isn’t enough—companies want professionals who can actually build, deploy, and manage applications effectively. That’s where the Certified Kubernetes Application Developer (CKAD) exam comes in. This certification validates your practical skills and sets you apart in the competitive DevOps and cloud job market. What is CKAD? The Certified Kubernetes Application Developer (CKAD) is a hands-on exam created by the Cloud Native Computing Foundation (CNCF) in collaboration with The Linux Foundation . Unlike traditional certifications that focus on theory, CKAD is designed to test your real-world skills in deploying and managing applications on Kubernetes clusters. If you are a developer, DevOps engineer, or anyone who works with Kubernetes on a daily basis, CKAD is the right c...