如何在发布文件中设置aspnetcore_environment？ [英] How to set aspnetcore_environment in publish file?

问题描述

我有ASP.NET Core应用程序（Web Api）。该文档已经解释了

更新1

我知道我必须设置 ASPNETCORE_ENVIRONMENT 但是我不知道该在哪里设置？在开发过程中，可以在配置文件中的 launchSettings.json 中进行设置，但是问题是，在发布到暂存或生产环境中时如何设置？我们在目标服务器上设置环境变量吗？

更新2

我发现了文章 此处介绍了设置环境变量的不同方法。这部分回答了我的问题。但是，当我发布应用程序时，发布过程在发布 appsettings。{env.EnvironmentName} .json

时不遵循环境变量。针对该问题的单独的帖子

解决方案

您可以使用以下命令将所需的ASPNETCORE_ENVIRONMENT作为参数传递给dotnet publish命令：

/ p：EnvironmentName =登台

例如
dotnet发布/ p：Configuration =发布/ p：EnvironmentName = Staging

这将生成具有为您的项目指定的正确环境的web.config：

 < environmentVariables> 
< environmentVariable name = ASPNETCORE_ENVIRONMENT value = Staging /> 
< / environmentVariables> 
  

I have ASP.NET Core application (Web Api). The documentation has explained working with multiple environments, however it failed to explain how to set aspnetcore_environment when publishing the web site.

So lets say if i have 3 environments Development, Staging and Production

1. In classic ASP.NET Web Application i used to create 3 build configurations. Development, Staging and Production ( Like shown in picture below). and then 3 .pubxml files, one for each configuration. Do i need to use the same approach for ASP.NET Core application as well?

2. How do i set aspnetcore_environment in .pubxml file?

3. If the approach specified in Question 1 is obsolete, then what's the alternate approach? ( I use Jenkins for CI)

Update 1

I understand that I have to set ASPNETCORE_ENVIRONMENT however I am not able to understand where do we set this? During development I can set this in profile in launchSettings.json, however question was how do we set this when publishing to staging or production? do we set environment variable on the target server itself?

Update 2
I found article here that explains different ways of setting environment variable. This partially answered my question. However when I publish the application, the publish process does not honor the environment variable while publishing appsettings.{env.EnvironmentName}.json
I have created separate post for that question

解决方案

You could pass in the desired ASPNETCORE_ENVIRONMENT into the dotnet publish command as an argument using:

/p:EnvironmentName=Staging

e.g. dotnet publish /p:Configuration=Release /p:EnvironmentName=Staging

This will generate out the web.config with the correct environment specified for your project:

    <environmentVariables>
      <environmentVariable name="ASPNETCORE_ENVIRONMENT" value="Staging" />
    </environmentVariables>

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