Sehan's Algorithm Adventures

  Docker Tutorial for Beginners (Step by Step Guide) Docker has become a game changer for developers . It allows you to package applications with all dependencies and run them anywhere locally, on servers, or in the cloud. In this tutorial, we’ll explore Docker from the ground up, with examples for a simple ASP.NET Core application with MySQL . What is Docker? Docker is a platform for developing, shipping, and running applications in containers. What is Container -  A lightweight, standalone package that includes everything an app needs to run (code, libraries, runtime, OS-level dependencies). Key benefits Consistent environment across machines Isolation from other apps Easy deployment in cloud services Real-world analogy: Think of Docker as packing your app into a “self-sufficient box” . No matter where you take the box, the app works the same. Why Use Docker? Consistency -  Works the same on all environments (dev, test, production). Portability -  Runs on any sy...

  Understanding Clean Architecture in Software Development Clean Architecture is a powerful approach to designing software systems that are scalable, maintainable, and testable . It focuses on separating concerns so that business logic remains independent of frameworks, databases, and UI technologies. Key Principles of Clean Architecture: Independence of Frameworks – Your core logic doesn’t depend on external libraries. Separation of Concerns – Each layer has a clear responsibility. Testability – Business rules can be tested without UI, database, or server. Flexibility & Maintainability – Easy to update technologies without rewriting core logic. Typical Layers Include: Entities (Business Rules) Use Cases (Application Logic) Interface Adapters Frameworks & Drivers (UI, Database, APIs) By following Clean Architecture, developers can build systems that stand the test of time and adapt easily to change — a must in today’s fast-evolving tech l...