docker-compose.yaml

services:
  db:
    image: postgres:16
    restart: on-failure:5
    ports:
      - "${APP_DATABASE_PORT}:5432"
    environment:
      - POSTGRES_USER=${APP_DATABASE_USER}
      - POSTGRES_PASSWORD=${APP_DATABASE_PASSWORD}
      - POSTGRES_DB=${APP_DATABASE_NAME}
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${APP_POSTGRES_USER} -d ${APP_DATABASE_NAME}"]
      interval: 5s
      timeout: 5s
      retries: 5
    volumes:
      - postgres_data:/var/lib/postgresql/data

  redis:
    image: redis:latest
    ports:
      - "${REDIS_PORT}:6379"

  app:
    image: andytakker/example-web-service:latest
    command: granian --interface asgi --host 0.0.0.0 --port 8080 --loop uvloop library.main:app --access-log --log-level info
    ports:
      - "${APP_PORT}:8080"
    depends_on:
      db:
        condition: service_healthy
    environment:
      - APP_TITLE=${APP_TITLE:-Library}
      - APP_DESCRIPTION=${APP_DESCRIPTION:-Example web service for library}
      - APP_VERSION=${APP_VERSION:-1.0.0}
      - APP_DEBUG=${APP_DEBUG:-False}
      - APP_SECRET=${APP_SECRET:-secret}

      - APP_DATABASE_HOST=db
      - APP_DATABASE_PORT=5432
      - APP_DATABASE_USER=${APP_DATABASE_USER}
      - APP_DATABASE_PASSWORD=${APP_DATABASE_PASSWORD}
      - APP_DATABASE_NAME=${APP_DATABASE_NAME}
      - APP_DATABASE_POOL_SIZE=${APP_DATABASE_POOL_SIZE:-10}
      - APP_DATABASE_POOL_TIMEOUT=${APP_DATABASE_POOL_TIMEOUT:-10}

      - APP_REDIS_HOST=redis
      - APP_REDIS_PORT=6379

volumes:
  postgres_data: