Docker-Compose：服务 xxx 依赖于未定义的服务 xxx

Question

我遇到了这个错误：

ERROR: Service 'db' depends on service 'apache' which is undefined.

为什么说 apache 是未定义的？我检查缩进。应该是对的。

version: '3.5'

services:
  apache:
    build: ./Docker
    image: apache:latest
    ports:
     - "80:80"
    restart: always
networks:
       default:
         name: frontend-network

services:
  db:
    image: mariadb:latest
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: example
    depends_on:
    - "apache"
  adminer:
    image: adminer
    restart: always
    ports:
    - "8080:8080"
    depends_on:
    - "db"
networks:
      default:
        name: frontend-network

Answer 1

不，它没有定义。您已经用另一个 services 覆盖了另一个

您应该修复配置：

version: '3.5'

services:
  apache:
    build: ./Docker
    image: apache:latest
    ports:
     - "80:80"
    restart: always
  db:
    image: mariadb:latest
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: example
    depends_on:
    - "apache"
  adminer:
    image: adminer
    restart: always
    ports:
    - "8080:8080"
    depends_on:
    - "db"

networks:
      default:
        name: frontend-network

Docker-Compose：服务 xxx 依赖于未定义的服务 xxx

Docker-Compose: Service xxx depends on service xxx which is undefined

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