问Docker组合似乎不读取env文件中定义的env变量。

EN

myapp/
    docker/
        docker-compose.yml
    .env
    src/
        <my source code here>
    config.properties

ENV=local
SERVICE_DB_HOST=0.0.0.0
SERVICE_DB_PORT=3306
SERVICE_DB_ROOT_PASSWORD=12345
SERVICE_DB_APP_USER=my-service-user
SERVICE_DB_APP_PASSWORD=23456

version: "3.7"
services:
  myapp-main-db:
    env_file:
      - ../.env
    image: mysql:8
    container_name: myapp-main-db
    command: --default-authentication-plugin=mysql_native_password
    restart: always
    ports:
      - $SERVICE_DB_PORT:$SERVICE_DB_PORT
    environment:
      MYSQL_ROOT_PASSWORD: $SERVICE_DB_ROOT_PASSWORD
      MYSQL_DATABASE: myapp_service_db_$ENV
      MYSQL_USER: $SERVICE_DB_APP_USER
      MYSQL_PASSWORD: $SERVICE_DB_APP_PASSWORD
    volumes:
      - myapp-service-db-data:/var/lib/mysql
volumes:
  myapp-service-db-data:

$ docker-compose config
WARNING: The SERVICE_DB_PORT variable is not set. Defaulting to a blank string.
WARNING: The SERVICE_DB_ROOT_PASSWORD variable is not set. Defaulting to a blank string.
WARNING: The ENV variable is not set. Defaulting to a blank string.
WARNING: The SERVICE_DB_APP_USER variable is not set. Defaulting to a blank string.
WARNING: The SERVICE_DB_APP_PASSWORD variable is not set. Defaulting to a blank string.
ERROR: The Compose file './docker-compose.yml' is invalid because:
services.myapp-main-db.ports contains an invalid type, it should be a number, or an object