How to override dotnet publish's web.config?

Question

When I perform dotnet publish -c Release then this web.config file is being added to my publish folder:

<?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=".\aaa.xxxx.dll" stdoutLogEnabled="false" stdoutLogFile=".\logs\stdout" hostingModel="OutOfProcess" />
    </system.webServer>
  </location>
</configuration>

But I have different configuration on the server and I'd want to override it with my own config but, I have no idea how to do it.

I tried creating web.config file and setting it to Copy always.

But I receive:

error MSB4018: The "TransformWebConfig" task failed unexpectedly.

error MSB4018: System.UnauthorizedAccessException: Access to the path 'bin\Release\netcoreapp3.1\publish\web.config

Even when I run dotnet publish -c Release as admin.

Answer 1

For now, the workaround that I use is:

rmdir bin /s /q
rmdir obj /s /q
rmdir output /s /q
dotnet publish -c Release -o output
del /f "output\web.config"
xcopy "prod_web.config" "output\web.config*"
pause