Docker Compose 嵌套环境变量

Question

我有一个现有的应用程序，它使用如下所示的应用程序配置文件:

"ConnectionInfo": {
    "ServerName": "The Server URL",
    "DatabaseName": "The DatabaseName",
    "UserName": "The User Name",
    "Password": "The Password"}

现在，当我有一个简单的设置时，比如说

"ConnectionString":"My Connection String"

我了解如何在 compose.yml 文件中覆盖它:

environment:
  - ConnectionString=what I want it to be

问题是，如何设置顶部的服务器名称？

Answer 1

请使用双下划线(__)代替冒号(:)。

environment:
  - ConnectionInfo__ServerName=MyServerName

请引用Configuration in ASP.NET Core

For hierarchical config values specified in environment variables, a colon (:) may not work on all platforms. Double underscore (__) is supported by all platforms.