Add `Optional` and `ReloadOnChange` to `AbpConfigurationBuilderOptions`.

framework/src/Volo.Abp.Core/Microsoft/Extensions/Configuration/AbpConfigurationBuilderOptions.cs

@@ -21,6 +21,16 @@ public class AbpConfigurationBuilderOptions
     /// </summary>
     public string FileName { get; set; } = "appsettings";
 
+    /// <summary>
+    /// Whether the file is optional, Default value: true.
+    /// </summary>
+    public bool Optional { get; set; } = true;
+
+    /// <summary>
+    /// Whether the configuration should be reloaded if the file changes, Default value: true.
+    /// </summary>
+    public bool ReloadOnChange { get; set; } = true;
+
     /// <summary>
     /// Environment name. Generally used "Development", "Staging" or "Production".
     /// </summary>

framework/src/Volo.Abp.Core/Microsoft/Extensions/Configuration/ConfigurationHelper.cs

@@ -18,11 +18,11 @@ public static class ConfigurationHelper
 
         var builder = new ConfigurationBuilder()
             .SetBasePath(options.BasePath)
-            .AddJsonFile(options.FileName + ".json", optional: true, reloadOnChange: true);
+            .AddJsonFile(options.FileName + ".json", optional: options.Optional, reloadOnChange: options.ReloadOnChange);
 
         if (!options.EnvironmentName.IsNullOrEmpty())
         {
-            builder = builder.AddJsonFile($"{options.FileName}.{options.EnvironmentName}.json", optional: true, reloadOnChange: true);
+            builder = builder.AddJsonFile($"{options.FileName}.{options.EnvironmentName}.json", optional: options.Optional, reloadOnChange: options.ReloadOnChange);
         }
 
         if (options.EnvironmentName == "Development")