Prabhat Korshub Blogs

  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...

 Kubernetes has become the industry standard for container orchestration , and with its rapid adoption, the demand for certified professionals has skyrocketed. If you’re aiming to showcase your expertise in building, deploying, and managing applications in Kubernetes, the Certified Kubernetes Application Developer (CKAD) certification in 2025 is the perfect milestone. This guide will help you understand what CKAD is, why it matters, and how to prepare effectively for the exam in 2025. What is CKAD? The Certified Kubernetes Application Developer (CKAD) is a certification offered by the Cloud Native Computing Foundation (CNCF) in collaboration with The Linux Foundation. It validates your ability to design, build, and run cloud-native applications on Kubernetes. Unlike theoretical certifications, CKAD is a hands-on, performance-based exam where you solve real-world Kubernetes tasks in a command-line environment. Why CKAD Matters in 2025 Kubernetes is at the heart of modern...

  Introduction: Why Jenkins Still Rules in 2025 In the ever-evolving world of DevOps, Jenkins remains the cornerstone of Continuous Integration and Continuous Delivery (CI/CD). With its open-source nature, massive plugin ecosystem, and active community, Jenkins empowers developers and DevOps engineers to automate the entire software delivery process — from code commit to production deployment. Whether you're a beginner looking to start your DevOps journey or a professional aiming to master CI/CD automation, this complete Jenkins Bootcamp for 2025 will help you build production-ready pipelines, optimize software delivery, and future-proof your DevOps skills. 🧱 What You’ll Learn in This Jenkins CI/CD Bootcamp Introduction to Jenkins & DevOps Fundamentals Installing and Configuring Jenkins Creating and Automating CI Pipelines Building Advanced CD Pipelines with Jenkinsfile (Pipeline as Code) Integrating Git, Docker, Kubernetes, Maven, and More Setting Up J...

  🎯 What is CKAD? The CKAD is a performance-based, online, proctored certification from CNCF & Linux Foundation. It validates your ability to design, build, configure, monitor, and troubleshoot container-native applications on Kubernetes. 🗓️ Exam Format & Logistics Duration : 2 hours Format : ~15–20 hands-on tasks in a CLI environment Open-book : Only official Kubernetes documentation is accessible Kubernetes Version : Typically within 4–8 weeks of the latest minor release; currently v1.32   Passing Score : ~66% (~13/20 tasks)   Cost : $445 (up from $295 as of Feb 2025)   Retake Policy : One free retake included 🧠 Exam Domains & Weightings Domain Weight Application Design & Build 20% Application Deployment 20% Application Observability & Maintenance 15% Application Environment, Configuration & Security 25% Services & Networking 20% High‑value topics across domains now include CRDs, security contexts, init/...