Docker撰写Yaml-卷问题

Question

I've been following this docker tutorial , but because it's really out of date today, I cannot completely follow it. Once I had this docker-compose.yml file working:

version: '3'
services:
  nginx:
    build: ./nginx/
    ports:
      - 80:80
    links:
      - php
    volumes:
      - ./www/html:/var/www/html

  php:
    image: php:7.0-fpm
    expose:
        - 9000
    volumes:
        - ./www/html:/var/www/html

It did ran successfully.

It didn't work when I was trying to extract volumes info into the separate property volumes .

I've tried several approaches and combinations, but all have failed. Please give me a hint how to specify it properly.

Folder structure like this:

nginx
  default.conf
  Dockerfile
www
  html
    index.php
docker-compose.yml

Answer 1

Host volumes, aka bind mounts, don't need to have a separate volumes section at the top level. The volumes section is only needed for named volumes. In fact the only way you can use the volumes top level is with a named volume.