This repository contains a complete real-time chat infrastructure using Spring Boot, Angular, and Keycloak, all orchestrated through an Nginx Reverse Proxy.

• Nginx (Port 443): The entry point for all traffic. Handles SSL termination and routes requests to the appropriate service.
• Keycloak (/auth): Identity and Access Management (IAM) for secure user authentication.
• Backend (/api & /ws): Spring Boot application handling business logic and real-time WebSocket communication.
• Frontend (/): Angular application served securely via HTTPS.
• PostgreSQL: Database for persisting messages and user metadata.

• Docker & Docker Compose installed.
• OpenSSL installed (to generate local security certificates).

Because security keys are not tracked in Git, you must generate a local self-signed certificate for Nginx to start correctly.

Run this command from the project root:

# Ensure the directory exists
mkdir -p ./chat-app-ui/ssl

# Generate the certificates
openssl req -x509 -nodes -days 365 -newkey rsa:2048 \
  -keyout ./chat-app-ui/ssl/server.key \
  -out ./chat-app-ui/ssl/server.crt \
  -subj "/CN=localhost"