docker compose 文件不工作 : replicas Additional property replicas is not allowed

Question

docker 版本:17.03.1-ce

尝试从入门教程中获取 docker-compose.yml。

version: "3"
   services:
     web:
       image: tuhina/friendlyhello:2.0
     deploy:
       replicas: 5
       resources:
         limits:
           cpus: "0.1"
           memory: 50M
      restart_policy:
        condition: on-failure
      ports:
        - "80:80"
      networks:
        - webnet
    networks:
      webnet:

收到此错误:

replicas Additional property replicas is not allowed

我打错了什么？

谢谢。

编辑:docker-compose 版本 1.11.2，构建 dfed245

Answer 1

缩进在 docker-compose.yml 中至关重要。您设置它的方式，“部署”是一项服务，这不是预期的。部署部分旨在指定有关应如何部署“Web”服务的信息。以下允许 docker-compose up 和 docker stack deploy web --compose-file docker-compose.yml 为我成功运行:

version: "3"

services:
  web:
    image: tuhina/friendlyhello:2.0
    deploy:
      replicas: 5
      resources:
        limits:
          cpus: "0.1"
          memory: '50M'
      restart_policy:
        condition: on-failure
    ports:
      - "80:80"
    networks:
      - webnet

networks:
  webnet: