错误:在文件“./docker-compose.yml"中，卷必须是映射而不是字符串 [英] ERROR: In file './docker-compose.yml', volume must be a mapping not a string

问题描述

问题:为什么会出现此错误?

错误:在文件./docker-compose.yml"中，卷mariavolume"必须是映射而不是字符串.

ERROR: In file './docker-compose.yml', volume 'mariavolume' must be a mapping not a string.

我的 docker-compose 文件几乎与此相同:https://docs.docker.com/compose/wordpress/

My docker-compose file is almost identical to this one: https://docs.docker.com/compose/wordpress/

version: '2'
services:
  wordpress:
    image: wordpress:latest
    restart: always
    depends_on:
      - db
    ports:
      - 8080:80
    environment:
      WORDPRESS_DB_PASSWORD: example
      WORDPRESS_DB_HOST: 3306
  db:
    image: mariadb
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: example
    volumes:
      - maria_volume: /var/lib/mysql
volumes:
  maria_volume: ~/mariadb

推荐答案

就我而言，这是因为我没有在卷名后添加 :.

In my case this was happening because I missed adding a : after the volume name.

代替:

volumes:
    - mysqldata:

我输入了:

volumes:
    - mysqldata

docker-compose up 给了我和上面一样的错误.

docker-compose up gave me the same error as above.

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