Reverse proxy example

This is a small repository to get your feet wet with a reverse proxy.

Prerequisites

• Docker

Approach

We will launch a small node.js backend application followed by a small frontend application.

• The frontend will consist of an HTML file served by an nginx Server which will display a greeting.
• This greeting will be fetched from the backend API.
• Finally we will launch an nginx server which will serve as a reverse proxy.
• Thus, we will be able to reach our services through the reverse proxy as a single entrypoint

Get Started

1. Build backend image: docker build -t backend -f backend/backend.Dockerfile backend/

2. Run backend container: docker run -d --name=backend backend

3. Build frontend image: docker build -t frontend -f frontend/frontend.Dockerfile frontend/

4. Run frontend container: docker run -d --name=frontend frontend

5. Create a network: docker network create mynetwork

6. Connect backend and frontend to the network:

   • docker network connect mynetwork backend
   • docker network connect mynetwork frontend

7. Build proxy image: docker build -t proxy -f proxy/proxy.Dockerfile proxy/

8. Run proxy container: docker run -it -d -p 8080:8080 --network=mynetwork --name proxy proxy

9. Go to localhost:8080 - you should see a greeting page.