如何修复 docker-compose: services.my-service Additional property volume is not allowed

问题：

当你尝试使用以下命令启动基于 docker-compose 的服务时

docker_compose_up.sh

docker-compose up

docker-compose up

你会看到以下错误消息

docker_compose_volume_error.txt

services.my-service Additional property volume is not allowed

services.my-service Additional property volume is not allowed

配置如下

docker-compose-volume-typo.yml

services:
  mariadb:
    image: 'mariadb:latest'
    environment:
      - MYSQL_ALLOW_EMPTY_PASSWORD=yes
      - MYSQL_DATABASE=redmine
    volume:
      - './mariadb_data:/var/lib/mysql'

services:
  mariadb:
    image: 'mariadb:latest'
    environment:
      - MYSQL_ALLOW_EMPTY_PASSWORD=yes
      - MYSQL_DATABASE=redmine
    volume:
      - './mariadb_data:/var/lib/mysql'

解决方案

你拼错了 volume: - 即使只有一个卷，也总是需要称为 volumes:：

docker-compose-volume-fixed.yml

services:
  mariadb:
    image: 'mariadb:latest'
    environment:
      - MYSQL_ALLOW_EMPTY_PASSWORD=yes
      - MYSQL_DATABASE=redmine
    volumes:
      - './mariadb_data:/var/lib/mysql'

services:
  mariadb:
    image: 'mariadb:latest'
    environment:
      - MYSQL_ALLOW_EMPTY_PASSWORD=yes
      - MYSQL_DATABASE=redmine
    volumes:
      - './mariadb_data:/var/lib/mysql'

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