Diferentes appsettings.json en netcore

gistfile1.txt

-- Colocar esta seccion en Program.cs
public static IWebHostBuilder CreateWebHostBuilder(string[] args)
{
    return WebHost.CreateDefaultBuilder(args)
        .UseStartup<Startup>()
        .ConfigureAppConfiguration((hostingContext, config) =>
        {
            config.AddJsonFile($"appsettings.release.json", true, true)
                .AddJsonFile($"appsettings.test.json", true, true)
                .AddJsonFile($"appsettings.json", true, true);
        });
}
        
        
-- En el csproj Agregar en la seccion de <PropertyGroup></PropertyGroup>    
<EnableDefaultContentItems>false</EnableDefaultContentItems>


-- Agregar la configuracion custom
<Choose>
<When Condition="'$(Configuration)' == 'Debug'">
  <ItemGroup>
    <None Include="appsettings.json" CopyToOutputDirectory="Always" CopyToPublishDirectory="Always" />
    <None Include="appsettings.release.json" CopyToOutputDirectory="Never" CopyToPublishDirectory="Never" />
    <None Include="appsettings.test.json" CopyToOutputDirectory="Never" CopyToPublishDirectory="Never" />
  </ItemGroup>
</When>
<When Condition="'$(Configuration)' == 'Release'">
  <ItemGroup>
    <None Include="appsettings.release.json" CopyToOutputDirectory="Always" CopyToPublishDirectory="Always" />
    <None Include="appsettings.json" CopyToOutputDirectory="Never" CopyToPublishDirectory="Never" />
    <None Include="appsettings.test.json" CopyToOutputDirectory="Never" CopyToPublishDirectory="Never" />
  </ItemGroup>
</When>
<When Condition="'$(Configuration)' == 'Test'">
  <ItemGroup>
    <None Include="appsettings.test.json" CopyToOutputDirectory="Always" CopyToPublishDirectory="Always" />
    <None Include="appsettings.json" CopyToOutputDirectory="Never" CopyToPublishDirectory="Never" />
    <None Include="appsettings.release.json" CopyToOutputDirectory="Never" CopyToPublishDirectory="Never" />
  </ItemGroup>
</When>
</Choose>