Docker Day 8 | 3 Tier Architecture on Docker | React + Spring Boot + Postgres + Nginx | Hands-On

🐳 Welcome to Day 8 of the Docker Zero to Hero series! This is the most exciting video in the series so far! In this video I'll show you the complete architecture of a 3 tier application deployment using Docker on AWS EC2 — React frontend, Spring Boot backend, PostgreSQL database and Nginx as a reverse proxy serving the frontend and routing API traffic to the backend! No Docker Compose — pure Docker commands all the way! ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🎯 WHY THIS VIDEO IS THE MOST IMPORTANT IN THE SERIES Everything you learned in Days 1 to 7 comes together here. Dockerfiles — used to containerize React and Spring Boot. Docker Networks — used for container to container communication. Docker Volumes — used for PostgreSQL data persistence. Nginx — used as reverse proxy to serve frontend and route API calls to backend. This is exactly how real production applications are deployed using Docker in real companies — and being able to explain and implement this architecture is what makes you stand out in DevOps interviews. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📌 WHAT YOU WILL LEARN IN THIS VIDEO ✅ Complete 3 tier architecture design on Docker ✅ How Nginx acts as reverse proxy for React and Spring Boot ✅ How to containerize React frontend with Nginx ✅ How to containerize Spring Boot backend ✅ How to set up PostgreSQL container with persistent storage ✅ How Nginx routes /api paths to Spring Boot backend ✅ How all containers communicate on Docker network ✅ Live deployment and demo on AWS EC2 instance ✅ Full Docker commands used to build and run everything ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔍 WHO IS THIS VIDEO FOR This video is perfect for you if you are: 👉 A DevOps engineer who wants to deploy real applications 👉 A full stack developer who wants to containerize their app 👉 Someone preparing for DevOps or Docker interviews 👉 A Java or React developer learning Docker deployment 👉 Anyone who wants to see a complete production style Docker deployment from scratch ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 💡 COMPLETE ARCHITECTURE EXPLAINED 🌐 Nginx — Reverse Proxy → Single entry point for all incoming traffic → Serves React frontend static files directly → Routes all /api/* requests to Spring Boot backend → Users only interact with Nginx — never directly with containers → Port 80 exposed to the outside world ⚛️ React Frontend → Built and served as static files by Nginx → Containerized using multi stage Dockerfile → Communicates with backend via /api paths through Nginx → No direct exposure to the outside world 🍃 Spring Boot Backend → Handles all business logic and API requests → Receives traffic routed from Nginx on /api paths → Communicates with PostgreSQL database directly → Only accessible internally via Docker network 🐘 PostgreSQL Database → Stores all application data → Only accessible by Spring Boot backend → Data persisted using Docker volume → Never exposed to outside world ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⚙️ WHAT IS COVERED IN THE LIVE DEMO → Explaining complete 3 tier architecture diagram → Writing and explaining Nginx reverse proxy config → Building React frontend Docker image → Building Spring Boot backend Docker image → Setting up PostgreSQL container with volume → Creating Docker network for all containers → Running all containers using Docker commands → Verifying end to end application flow on EC2 → Showing frontend served by Nginx and API calls routed correctly ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔔 SUBSCRIBE TO ayushbuildstech If you are serious about learning Docker and DevOps with real hands on tutorials — Subscribe to ayushbuildstech and hit the bell icon so you never miss a video in this series! ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 👍 FOUND THIS HELPFUL? If this video helped you understand 3 tier Docker deployment — smash the Like button and subscribe for Day 9! 💬 COMMENT BELOW: Have you ever deployed a full stack application using Docker on EC2? Comment below — would love to hear your experience! ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔎 DOCKER ZERO TO HERO SERIES → Day 1 — Introduction to Docker → Day 2 — Docker Installation + Dockerfile Instructions → Day 3 — Dockerize Spring Boot Application → Day 4 — Docker Volumes Explained → Day 5 — Docker Networks Explained → Day 6 — Docker Multi Stage Builds → Day 7 — Docker Compose Explained → Day 9 — Coming Soon ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ #Docker #DockerDeployment #DevOps #DockerBeginners #NginxReverseProxy #DockerZeroToHero #SpringBoot #ayushbuildstech