docker-compose.yml

version: '3.8'

services:
  # 1. The Database
  postgres:
    image: postgres:15-alpine
    environment:
      - POSTGRES_DB=lingostream
      - POSTGRES_USER=postgres
      - POSTGRES_PASSWORD=postgres
    ports:
      - "5432:5432"
    volumes:
      - postgres_data:/var/lib/postgresql/data

  # 2. The Cache & Lock Manager
  redis:
    image: redis:7-alpine
    ports:
      - "6379:6379"

  # 3. The Spring Boot Application
  app:
    build: .
    ports:
      - "8080:8080"
    environment:
      # Dynamically override the application.yml settings to point to the Docker containers
      - SPRING_DATASOURCE_URL=jdbc:postgresql://postgres:5432/lingostream
      - SPRING_DATASOURCE_USERNAME=postgres
      - SPRING_DATASOURCE_PASSWORD=postgres
      - SPRING_REDIS_HOST=redis
      - SPRING_REDIS_PORT=6379
    depends_on:
      - postgres
      - redis

# This ensures database isn't wiped out every time we stop the container
volumes:
  postgres_data: