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!
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🎯 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.
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📌 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
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🔍 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
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💡 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
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⚙️ 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
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🔔 SUBSCRIBE TO ayushbuildstech
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with real hands on tutorials —
Subscribe to ayushbuildstech and hit the bell icon
so you never miss a video in this series!
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👍 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!
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🔎 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
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