Azure Docker组合失败，其中包含环境部分

Question

我有一个docker-compose.yml脚本在Azure中运行良好。但是，当我添加带有两个变量的en环境部分时，它会因此错误而失败：

2018-08-24 10:29:30.214 ERROR - Exception in multi-container config parsing: System.InvalidCastException: Specified cast is not valid.  
 at LWAS.Kube.ComposeFileParser.ParseContainer (System.Collections.Generic.KeyValuePair`2[TKey,TValue] service) [0x00152] in <029f376c1c6a4bb79892c2f60333c2d8>:0
 at LWAS.Kube.ComposeFileParser.ParseFile (System.String composeYaml) [0x000d2] in <029f376c1c6a4bb79892c2f60333c2d8>:0
 at LWAS.Kube.PodSpec.LoadSpecFromComposeYamlFile (System.String composeFile) [0x00000] in <029f376c1c6a4bb79892c2f60333c2d8>:0
 at LWAS.SiteStartInfoRepository.SetupPodSpecForMultiContainerApp (Microsoft.Web.Hosting.StartSiteContext ctx, LWAS.LinuxSiteStartInfo startInfo) [0x0000f] in <029f376c1c6a4bb79892c2f60333c2d8>:0
2018-08-24 10:29:30.215 ERROR - Start multi-container app failed

docker-compose.yml文件的缩短内容为：

version: '3.3'

services:
  application:
    image: myregistry.azurecr.io/application:latest
    volumes:
      - application_data:/usr/local/application/data

  proxy:
    image: myregistry.azurecr.io/proxy:latest
    depends_on:
      - application
    environment:
      - NGINX_HOST=myapplication.azurewebsites.net
      - NGINX_PORT=80
    ports:
      - "80:80"

volumes:
  application_data:

我试过了：

1. 只有一个变量
2. 使用围绕值的引号，即NGINX_PORT="80"
3. 在引号中使用整个变量定义，即"NGINX_PORT=80"
4. 使用驼峰情况重命名变量，即nginxPort=80
5. 上下移动环境部分

什么都没有帮助 - 仍然是相同的错误消息。

但是应该可以在Azure中使用具有Docker组合的环境变量，如下所示：https://docs.microsoft.com/en-us/dotnet/standard/microservices-architecture/multi-container-microservice-net-applications/multi-container-applications-docker-compose

注意：它在本地使用docker-compose命令没有任何问题。所以它必须是一些Azure特定的问题。

我究竟做错了什么？

谢谢

Answer 1

尝试： - 删除environment值前面的破折号 - 将所有environment值的'='更改为'：'

version: '3.3'

services:
  application:
    image: myregistry.azurecr.io/application:latest
    volumes:
      - application_data:/usr/local/application/data

  proxy:
    image: myregistry.azurecr.io/proxy:latest
    depends_on:
      - application
    environment:
      NGINX_HOST: myapplication.azurewebsites.net
      NGINX_PORT: 80
    ports:
      - "80:80"

volumes:
  application_data:

来自Microsoft的示例yml：

version: '3.3'

services:
   db:
     image: mysql:5.7
     volumes:
       - db_data:/var/lib/mysql
     restart: always
     environment:
       MYSQL_ROOT_PASSWORD: somewordpress
       MYSQL_DATABASE: wordpress
       MYSQL_USER: wordpress
       MYSQL_PASSWORD: wordpress

   wordpress:
     depends_on:
       - db
     image: wordpress:latest
     ports:
       - "8000:80"
     restart: always
     environment:
       WORDPRESS_DB_HOST: db:3306
       WORDPRESS_DB_USER: wordpress
       WORDPRESS_DB_PASSWORD: wordpress
volumes:
    db_data:

资料来源：https://docs.microsoft.com/en-us/azure/app-service/containers/tutorial-multi-container-app