Docker撰写构建错误

Question

如果我使用命令docker-compose build，我将得到如下错误：

ERROR: Validation failed in file './docker-compose.yml', reason(s):
Service 'php' configuration key 'expose' '0' is invalid: should be of
the format 'PORT[/PROTOCOL]'

我使用最新版本的docker和docker-compose。

我的docker-compose.yml具有以下代码：

application:
    build: code
    volumes:
        - ./symfony:/var/www/symfony
        - ./logs/symfony:/var/www/symfony/app/logs
    tty: true
db:
    image: mysql
    ports:
        - 3306:3306
    environment:
        MYSQL_ROOT_PASSWORD: root
        MYSQL_DATABASE: symfony
        MYSQL_USER: root
        MYSQL_PASSWORD: root
php:
    build: php-fpm
    expose:
        - 9000:9000
    volumes_from:
        - application
    links:
        - db
nginx:
    build: nginx
    ports:
        - 80:80
    links:
        - php
    volumes_from:
        - application
    volumes:
        - ./logs/nginx/:/var/log/nginx
elk:
    image: willdurand/elk
    ports:
        - 81:80
    volumes:
        - ./elk/logstash:/etc/logstash
        - ./elk/logstash/patterns:/opt/logstash/patterns
    volumes_from:
        - application
        - php
        - nginx

我使用的是Ubuntu 14.04，您能告诉我如何解决吗？

Answer 1

对于短端口（2 位数字），您需要将端口定义放在引号中。这是 YAML 的性质和 docker-compose 中使用的解析器的结果。

application:
    build: code
    volumes:
        - ./symfony:/var/www/symfony
        - ./logs/symfony:/var/www/symfony/app/logs
    tty: true
db:
    image: mysql
    ports:
        - "3306:3306"
    environment:
        MYSQL_ROOT_PASSWORD: root
        MYSQL_DATABASE: symfony
        MYSQL_USER: root
        MYSQL_PASSWORD: root
php:
    build: php-fpm
    expose:
        - "9000"
    volumes_from:
        - application
    links:
        - db
nginx:
    build: nginx
    ports:
        - "80:80"
    links:
        - php
    volumes_from:
        - application
    volumes:
        - ./logs/nginx/:/var/log/nginx
elk:
    image: willdurand/elk
    ports:
        - "81:80"
    volumes:
        - ./elk/logstash:/etc/logstash
        - ./elk/logstash/patterns:/opt/logstash/patterns
    volumes_from:
        - application
        - php
        - nginx

此外，expose 语句应该只带有一个数字并且也应该被引用。在上面添加了所有需要的更改。