docker-compose.yml

services:

  # ── PostgreSQL ────────────────────────────────────────────────────────────
  postgres:
    image: postgres:16-alpine
    restart: unless-stopped
    environment:
      POSTGRES_USER:     churnai
      POSTGRES_PASSWORD: churnai
      POSTGRES_DB:       churnai
    volumes:
      - postgres_data:/var/lib/postgresql/data
    ports:
      - "5432:5432"
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U churnai"]
      interval: 10s
      timeout: 5s
      retries: 5

  # ── Redis (cache) ─────────────────────────────────────────────────────────
  redis:
    image: redis:7-alpine
    restart: unless-stopped
    ports:
      - "6379:6379"

  # ── Backend (FastAPI + Agents) ────────────────────────────────────────────
  backend:
    # `backend` and `worker` run the SAME code, so they share one image tag:
    # rebuilding either keeps them in lockstep (a drifting worker image once
    # dead-lettered jobs with a missing dependency).
    image: churnai-backend:dev
    build:
      context: ./backend
      dockerfile: Dockerfile
    restart: unless-stopped
    env_file: ./backend/.env
    environment:
      DATABASE_URL: postgresql+asyncpg://churnai:churnai@postgres:5432/churnai
      REDIS_URL:    redis://redis:6379/0
    ports:
      - "8001:8000"
    depends_on:
      postgres:
        condition: service_healthy
      redis:
        condition: service_started
    volumes:
      - ./backend:/app
    command: uvicorn main:app --host 0.0.0.0 --port 8000 --reload

  # ── Worker (Arq async jobs) ───────────────────────────────────────────────
  # Opt-in: the keyless demo runs without it (synchronous endpoints). Scales
  # independently; aligned with the Kubernetes deployment target.
  worker:
    image: churnai-backend:dev      # same image as `backend` (see note above)
    build:
      context: ./backend
      dockerfile: Dockerfile
    restart: unless-stopped
    env_file: ./backend/.env
    environment:
      DATABASE_URL: postgresql+asyncpg://churnai:churnai@postgres:5432/churnai
      REDIS_URL:    redis://redis:6379/0
    depends_on:
      postgres:
        condition: service_healthy
      redis:
        condition: service_started
    volumes:
      - ./backend:/app
    command: arq jobs.worker.WorkerSettings

  # ── Frontend (nginx) ──────────────────────────────────────────────────────
  frontend:
    image: nginx:alpine
    restart: unless-stopped
    ports:
      - "3000:80"
    volumes:
      - ./frontend:/usr/share/nginx/html:ro
      - ./docker/nginx.conf:/etc/nginx/conf.d/default.conf:ro

volumes:
  postgres_data: