docker-compose.yml

# ─────────────────────────────────────────────────────────────────────────────
# docker-compose.yml  —  BASE configuration (shared by dev & prod)
#
# Usage:
#   Dev:  docker compose --env-file .env.dev -f docker-compose.yml -f docker-compose.dev.yml up --build
#   Prod: docker compose --env-file .env.prod -f docker-compose.yml -f docker-compose.prod.yml up -d
#
# This file defines services, networks, and volumes that are common to
# both environments. Environment-specific settings live in the override files.
# ─────────────────────────────────────────────────────────────────────────────

services:

  # ── PostgreSQL Database ─────────────────────────────────────────────────────
  postgres:
    image: postgres:16-alpine
    container_name: timetable_postgres
    restart: unless-stopped
    environment:
      POSTGRES_DB:       ${POSTGRES_DB}
      POSTGRES_USER:     ${POSTGRES_USER}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
    volumes:
      - postgres_data:/var/lib/postgresql/data
      # Optional: seed SQL scripts placed in ./docker/postgres/init/
      - ./docker/postgres/init:/docker-entrypoint-initdb.d:ro
    networks:
      - backend_net
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER} -d ${POSTGRES_DB}"]
      interval: 10s
      timeout: 5s
      retries: 5
      start_period: 30s

  # ── Spring Boot Backend ─────────────────────────────────────────────────────
  backend:
    build:
      context: ./timetable-app-backend
      dockerfile: Dockerfile
      target: production
    container_name: timetable_backend
    restart: unless-stopped
    environment:
      SPRING_DATASOURCE_URL:      ${DATABASE_URL}
      SPRING_DATASOURCE_USERNAME: ${DATABASE_USERNAME}
      SPRING_DATASOURCE_PASSWORD: ${DATABASE_PASSWORD}
      TIMETABLEAPP_SECRETKEY:     ${JWT_SECRET_KEY}
      SPRING_PROFILES_ACTIVE:     ${SPRING_PROFILES_ACTIVE}
      JAVA_OPTS:                  ${JAVA_OPTS:-}
      # Override Timefold termination limit via env
      TIMEFOLD_TERMINATION_LIMIT: ${TIMEFOLD_TERMINATION_LIMIT:-6m}
    depends_on:
      postgres:
        condition: service_healthy
    networks:
      - backend_net
      - frontend_net
    healthcheck:
      test: ["CMD-SHELL", "wget -qO- http://localhost:8200/actuator/health || exit 1"]
      interval: 30s
      timeout: 10s
      retries: 5
      start_period: 90s   # Spring Boot + Timefold init can be slow

  # ── Angular Frontend (Nginx serving static files) ──────────────────────────
  frontend:
    build:
      context: ./timetable-app
      dockerfile: Dockerfile
      target: production
    container_name: timetable_frontend
    restart: unless-stopped
    networks:
      - frontend_net
    healthcheck:
      test: ["CMD-SHELL", "wget -qO- http://localhost/health || exit 1"]
      interval: 30s
      timeout: 5s
      retries: 3
      start_period: 10s
    depends_on:
      - backend

  # ── Nginx Load Balancer ─────────────────────────────────────────────────────
  nginx:
    image: nginx:1.27-alpine
    container_name: timetable_nginx
    restart: unless-stopped
    ports:
      - "${NGINX_PORT:-4200}:80"
    volumes:
      - ./nginx/nginx.conf:/etc/nginx/nginx.conf:ro
    networks:
      - frontend_net
    depends_on:
      frontend:
        condition: service_healthy
      backend:
        condition: service_healthy
    healthcheck:
      test: ["CMD-SHELL", "wget -qO- http://localhost/nginx-health || exit 1"]
      interval: 30s
      timeout: 5s
      retries: 3

# ── Networks ──────────────────────────────────────────────────────────────────
networks:
  backend_net:
    driver: bridge
    internal: true     # Postgres is NOT reachable from host (security)
  frontend_net:
    driver: bridge

# ── Volumes ───────────────────────────────────────────────────────────────────
volumes:
  postgres_data:
    driver: local