docker-compose.yml

version: '3.8'

services:
  postgres:
    image: postgres:15-alpine
    environment:
      POSTGRES_DB: adventure
      POSTGRES_USER: adventure
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-changeme}
    volumes:
      - postgres_data:/var/lib/postgresql/data
    ports:
      - "5433:5432"
    healthcheck:
      test: [ "CMD-SHELL", "pg_isready -U adventure" ]
      interval: 10s
      timeout: 5s
      retries: 5

  web:
    build: .
    ports:
      - "5001:5000"
    environment:
      - DATABASE_URL=postgresql://adventure:${POSTGRES_PASSWORD:-changeme}@postgres:5432/adventure
      - SECRET_KEY=${SECRET_KEY:-dev-secret-key-change-in-production}
      - FLASK_ENV=production
      # Local compose serves plain HTTP on localhost:5001; set to 1 when
      # fronted by TLS (the app defaults Secure cookies ON in production).
      - SESSION_COOKIE_SECURE=${SESSION_COOKIE_SECURE:-0}
    volumes:
      - ./instance:/app/instance
      - ./logs:/app/logs
    depends_on:
      postgres:
        condition: service_healthy
    # NOTE: >1 worker requires sticky sessions + a Socket.IO message queue; state is in-process (pre-existing)
    command: [ "gunicorn", "--bind", "0.0.0.0:5000", "--workers", "4", "--worker-class", "geventwebsocket.gunicorn.workers.GeventWebSocketWorker", "--timeout", "120", "app:app" ]

  # Development database viewer (optional)
  adminer:
    image: adminer:latest
    ports:
      - "8081:8080"
    depends_on:
      - postgres
    environment:
      ADMINER_DEFAULT_SERVER: postgres

volumes:
  postgres_data: