How can I add arguments to web.config using dotnet publish CLI?

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Hi Everyone!

Currently I am running the command below on my CI/CD pipeline, everything is working as expected.

& dotnet publish "$projectSolution" --output $outputDir --configuration $Configuration /p:EnvironmentName=$Environment --verbosity quiet

This will generate the following web.config file

XML

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <location path="." inheritInChildApplications="false">
    <system.webServer>
      <handlers>
        <add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModuleV2" resourceType="Unspecified" />
      </handlers>
      <aspNetCore processPath="dotnet" arguments=".\{projectSolution}.dll" stdoutLogEnabled="false" stdoutLogFile=".\logs\stdout" hostingModel="inprocess">
        <environmentVariables>
          <environmentVariable name="ASPNETCORE_ENVIRONMENT" value="Development" />
        </environmentVariables>
      </aspNetCore>
    </system.webServer>
  </location>
</configuration>

However, I wanted to add a command line argument to the arguments in the web.config file in the aspNetCore node. So if I add the argument manually

XML

<aspNetCore processPath="dotnet" arguments=".\{projectSolution}.dll new_argument" stdoutLogEnabled="false" stdoutLogFile=".\logs\stdout" hostingModel="inprocess">
  <environmentVariables>
    <environmentVariable name="ASPNETCORE_ENVIRONMENT" value="Development" />
  </environmentVariables>
</aspNetCore>

The code will work, but I don't know how to add the argument new_argument using the dotnet publish command so that the file is automatically generated with the argument added. Any help is greatly appreciated.

What I have tried:

I have looked over many times about adding arguments from the documentation dotnet run command - .NET CLI | Microsoft Docs[^] but to no avail.

Posted 29-Nov-21 17:34pm

instantmaker

Updated 29-Nov-21 22:14pm

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Richard Deeming · Accepted Answer · 2021-11-29T22:14:00

Solution 1

Use a web config transformation file:
Transform web.config | Microsoft Docs[^]

Posted 29-Nov-21 22:14pm

Richard Deeming

Comments

instantmaker 30-Nov-21 23:39pm

Hi, Richard, thanks for the help. I looked over the examples and everything I see is on the node level instead of inserting to the attribute level. Do you mind sharing some sample code that I can look at please?

Richard Deeming 1-Dec-21 3:24am

Something like this should work:

<?xml version="1.0" encoding="utf-8"?>
<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
  <location path="." inheritInChildApplications="false">
    <system.webServer>
      <aspNetCore 
        processPath="dotnet"
        arguments=".\{projectSolution}.dll" 
        xdt:Transform="SetAttributes" 
        xdt:Locator="Match(processPath)"
      />
    </system.webServer>
  </location>
</configuration>

instantmaker 1-Dec-21 9:03am

hi, this works great except that now the arguments really becomes .\{projectSolution}.dll new_argument. So I just create one that will have the solution named hard coded for now. don't know if this is the right way to do this, thanks so much for the help!