Welcome back to our Kubernetes Beginner to Pro series! 🚀 In Day 4, we’ll take our Spring Boot application and containerize it with Docker step by step. By the end of this video, you’ll know how to package, run, and share your Spring Boot app as a Docker container. 💡 What you’ll learn in this video: Writing a Dockerfile step by step Understanding how Docker executes instructions inside containers Building and running your Spring Boot app as a Docker container Pushing your image to Docker Hub for universal access 🛠️ Prerequisites: Java JDK Maven Docker installed locally Spring Boot project (from Day 3) 📂 Topics covered: Project setup & Dockerfile explained Building Docker images Running containers locally DockerHub push workflow ✅ Next video (Day 5): Deploying this Dockerized app to Kubernetes.