# docker-compose.yml
services:
  db:
    image: postgres:16-alpine
    environment:
      POSTGRES_USER: app
      POSTGRES_PASSWORD: ${DB_PASSWORD}
      POSTGRES_DB: appdb
    volumes:
      - pgdata:/var/lib/postgresql/data
      - ./init:/docker-entrypoint-initdb.d:ro
    ports:
      - "5432:5432"
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U app -d appdb"]
      interval: 5s
      timeout: 3s
      retries: 5
    command:
      - "postgres"
      - "-c"
      - "shared_buffers=256MB"
      - "-c"
      - "log_min_duration_statement=200ms"

volumes:
  pgdata: