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Jenkins Architecture Explained: Complete Guide for Beginners Introduction Jenkins is one of the most popular open-source automation tools used in DevOps for Continuous Integration (CI) and Continuous Deployment (CD). It helps development and operations teams automate the process of building, testing, and deploying applications. In modern DevOps environments, Jenkins acts as the central automation server that reduces manual effort, improves software quality, and enables faster application delivery. In this guide, we will explore Jenkins Architecture, its components, workflow, and real-world use cases. What is Jenkins? Jenkins is an open-source automation server written in Java. It allows developers to automate various stages of the software development lifecycle such as: Code Integration Build Automation Testing Deployment Monitoring Jenkins supports thousands of plugins, making it one of the most flexible CI/CD tools available today. Why Do We Need Jenkins? Without Jenkins: Developers ...

  What is CI/CD in DevOps? CI/CD is one of the most important concepts in DevOps. It helps teams automate the software development and deployment process, making delivery faster, more reliable, and less error-prone. What is CI (Continuous Integration)? Continuous Integration is the process where developers frequently push code changes to a shared repository like GitHub. Whenever new code is pushed: The application is automatically built Automated tests are executed Bugs and integration issues are detected early Example A developer pushes code to GitHub → Jenkins automatically triggers the pipeline → Build and testing start automatically. What is CD (Continuous Delivery / Continuous Deployment)? CD has two meanings: 1. Continuous Delivery The application is always kept deployment-ready. Deployment to production requires manual approval. 2. Continuous Deployment The application is automatically deployed to production without manual intervention after all tests pass successfully....