/// <summary>
/// Create a new <see cref="IConfiguration"/> using a <see cref="PlaceholderResolverProvider"/> which wraps the provided <see cref="IConfiguration"/>.
/// The new configuration will then be used to replace the current <see cref="IConfiguration"/> in the service container. All subsequent requests for a
/// <see cref="IConfiguration"/> will return the newly created one providing placeholder resolution.
/// </summary>
/// <param name="services">the current service container</param>
/// <param name="configuration">the configuration the placeholder resolver will wrap</param>
/// <param name="loggerFactory">the log factory to use</param>
/// <returns>the new configuration</returns>
public static IConfiguration ConfigurePlaceholderResolver(this IServiceCollection services, IConfiguration configuration, ILoggerFactory loggerFactory = null)
{
if (configuration == null)
{
throw new ArgumentNullException(nameof(configuration));
}
var newConfig = configuration.AddPlaceholderResolver(loggerFactory);
services.Replace(ServiceDescriptor.Singleton(typeof(IConfiguration), newConfig));
return(newConfig);
}
