Include the "Production" environment fallback in sample config loading

Author: nblumhardt

samples/SimpleWebSample/Program.cs

@@ -13,7 +13,7 @@ public static int Main(string[] args)
             var configuration = new ConfigurationBuilder()
                 .SetBasePath(Directory.GetCurrentDirectory())
                 .AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)
-                .AddJsonFile($"appsettings.{Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT")}.json", optional: true)
+                .AddJsonFile($"appsettings.{Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT") ?? "Production"}.json", optional: true)
                 .Build();
 
             Log.Logger = new LoggerConfiguration()