新增learn-kubernetes（https://github.com/yyong-brs/learn-kubernetes）相关文件

learn/learn-kubernetes-master/kiamol/ch02/docker-images/whoami/Dockerfile

@@ -0,0 +1,18 @@
+FROM mcr.microsoft.com/dotnet/sdk:6.0-alpine as builder
+
+WORKDIR /src
+COPY src/whoami.csproj .
+RUN dotnet restore
+
+COPY src /src
+RUN dotnet publish -c Release -o /out whoami.csproj
+
+# app image
+FROM  mcr.microsoft.com/dotnet/aspnet:6.0-alpine
+
+EXPOSE 80
+
+WORKDIR /app
+ENTRYPOINT ["dotnet", "whoami.dll"]
+
+COPY --from=builder /out/ .

learn/learn-kubernetes-master/kiamol/ch02/docker-images/whoami/src/Controllers/WebController.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Net;
+using System.Runtime.InteropServices;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc;
+
+namespace whoami.Controllers
+{
+    [Produces("application/json")]
+    [Route("/")]
+    public class WebController : Controller
+    {
+        private static string _Host = Dns.GetHostName();
+
+        [HttpGet]
+        public ActionResult<string> Get()
+        {             
+            var osDescription = RuntimeInformation.OSDescription;
+            return $"I'm {_Host} running on {osDescription}";
+        }
+    }
+}

learn/learn-kubernetes-master/kiamol/ch02/docker-images/whoami/src/Program.cs

@@ -0,0 +1,18 @@
+using Microsoft.AspNetCore;
+using Microsoft.AspNetCore.Hosting;
+
+namespace whoami
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            BuildWebHost(args).Run();
+        }
+
+        public static IWebHost BuildWebHost(string[] args) =>
+            WebHost.CreateDefaultBuilder(args)
+                .UseStartup<Startup>()
+                .Build();
+    }
+}

learn/learn-kubernetes-master/kiamol/ch02/docker-images/whoami/src/Startup.cs

@@ -0,0 +1,42 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+
+namespace whoami
+{
+    public class Startup
+    {
+        public Startup(IConfiguration configuration)
+        {
+            Configuration = configuration;
+        }
+
+        public IConfiguration Configuration { get; }
+
+        public void ConfigureServices(IServiceCollection services)
+        {
+            services.AddControllers();
+        }
+
+        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
+        {
+            if (env.IsDevelopment())
+            {
+                app.UseDeveloperExceptionPage();
+            }         
+
+            app.UseRouting();
+            app.UseEndpoints(endpoints => 
+            {
+                endpoints.MapControllers();
+            });
+        }
+    }
+}

learn/learn-kubernetes-master/kiamol/ch02/docker-images/whoami/src/appsettings.Development.json

@@ -0,0 +1,9 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Debug",
+      "System": "Information",
+      "Microsoft": "Information"
+    }
+  }
+}

learn/learn-kubernetes-master/kiamol/ch02/docker-images/whoami/src/appsettings.json

@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}

learn/learn-kubernetes-master/kiamol/ch02/docker-images/whoami/src/whoami.csproj

@@ -0,0 +1,7 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+  </PropertyGroup>
+
+</Project>