Optional config/appsettings.json

app/Program.cs

@@ -1,9 +1,12 @@
 using Microsoft.AspNetCore.Builder;
+using Microsoft.Extensions.Configuration;
 
 var builder = WebApplication.CreateSlimBuilder(args);
+builder.Configuration.AddJsonFile("config/appsettings.json", true, true);
+builder.Configuration.AddEnvironmentVariables();
 var app = builder.Build();
 
-var message = builder.Configuration["MESSAGE"] ?? "Hello, World!";
+var message = builder.Configuration["MESSAGE"] ?? "Hello, World! (from code)";
 var podName = builder.Configuration["POD_NAME"];
 var namespaceName = builder.Configuration["NAMESPACE_NAME"];
 

app/config/appsettings.json

@@ -0,0 +1,3 @@
+{
+    "MESSAGE": "Hello, World! (from settingtesttest)"
+}