Add frontend/backend sample (works with tye run)

samples/frontend-backend/backend/Program.cs

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+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Hosting;
+
+namespace Backend
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            CreateHostBuilder(args).Build().Run();
+        }
+
+        public static IHostBuilder CreateHostBuilder(string[] args) =>
+            Host.CreateDefaultBuilder(args)
+                .ConfigureWebHostDefaults(webBuilder =>
+                {
+                    webBuilder.UseStartup<Startup>();
+                });
+    }
+}

samples/frontend-backend/backend/Properties/launchSettings.json

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+{
+  "iisSettings": {
+    "windowsAuthentication": false, 
+    "anonymousAuthentication": true, 
+    "iisExpress": {
+      "applicationUrl": "http://localhost:21017",
+      "sslPort": 44378
+    }
+  },
+  "profiles": {
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "backend": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "applicationUrl": "https://localhost:5001;http://localhost:5000",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

samples/frontend-backend/backend/Startup.cs

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+using System.Net;
+using System.Text.Json;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.Http.Features;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Hosting;
+
+namespace Backend
+{
+    public class Startup
+    {        
+        private readonly JsonSerializerOptions options = new JsonSerializerOptions()
+        {
+            PropertyNameCaseInsensitive = true,
+            PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
+        };
+
+        public Startup(IConfiguration configuration)
+        {
+            Configuration = configuration;
+        }
+
+        public IConfiguration Configuration { get; }
+
+        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
+        {
+            if (env.IsDevelopment())
+            {
+                app.UseDeveloperExceptionPage();
+            }
+
+            app.UseRouting();
+
+            app.UseEndpoints(endpoints =>
+            {
+                endpoints.MapGet("/", async context =>
+                {
+                    var connection = context.Features.Get<IHttpConnectionFeature>();
+                    var backendInfo = new BackendInfo()
+                    {
+                        IP = connection.LocalIpAddress.ToString(),
+                        Hostname = Dns.GetHostName(),
+                    };
+
+                    context.Response.ContentType = "application/json; charset=utf-8";
+                    await JsonSerializer.SerializeAsync(context.Response.Body, backendInfo);
+                });
+            });
+        }
+
+        class BackendInfo
+        {
+            public string IP { get; set; } = default!;
+
+            public string Hostname { get; set; } = default!;
+        }
+    }
+}

samples/frontend-backend/backend/appsettings.Development.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft": "Warning",
+      "Microsoft.Hosting.Lifetime": "Information"
+    }
+  }
+}

samples/frontend-backend/backend/appsettings.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft": "Warning",
+      "Microsoft.Hosting.Lifetime": "Information"
+    }
+  },
+  "AllowedHosts": "*"
+}

samples/frontend-backend/backend/backend.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <RootNamespace>Backend</RootNamespace>
+  </PropertyGroup>
+
+</Project>

samples/frontend-backend/frontend-backend.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.26124.0
+MinimumVisualStudioVersion = 15.0.26124.0
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "backend", "backend\backend.csproj", "{E900C6D9-7A87-49E3-93E5-97E6402E3939}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "frontend", "frontend\frontend.csproj", "{3BCACB4B-8506-4A5C-B4EE-FC76627EBE11}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|Any CPU = Release|Any CPU
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{E900C6D9-7A87-49E3-93E5-97E6402E3939}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{E900C6D9-7A87-49E3-93E5-97E6402E3939}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{E900C6D9-7A87-49E3-93E5-97E6402E3939}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{E900C6D9-7A87-49E3-93E5-97E6402E3939}.Debug|x64.Build.0 = Debug|Any CPU
+		{E900C6D9-7A87-49E3-93E5-97E6402E3939}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{E900C6D9-7A87-49E3-93E5-97E6402E3939}.Debug|x86.Build.0 = Debug|Any CPU
+		{E900C6D9-7A87-49E3-93E5-97E6402E3939}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{E900C6D9-7A87-49E3-93E5-97E6402E3939}.Release|Any CPU.Build.0 = Release|Any CPU
+		{E900C6D9-7A87-49E3-93E5-97E6402E3939}.Release|x64.ActiveCfg = Release|Any CPU
+		{E900C6D9-7A87-49E3-93E5-97E6402E3939}.Release|x64.Build.0 = Release|Any CPU
+		{E900C6D9-7A87-49E3-93E5-97E6402E3939}.Release|x86.ActiveCfg = Release|Any CPU
+		{E900C6D9-7A87-49E3-93E5-97E6402E3939}.Release|x86.Build.0 = Release|Any CPU
+		{3BCACB4B-8506-4A5C-B4EE-FC76627EBE11}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{3BCACB4B-8506-4A5C-B4EE-FC76627EBE11}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{3BCACB4B-8506-4A5C-B4EE-FC76627EBE11}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{3BCACB4B-8506-4A5C-B4EE-FC76627EBE11}.Debug|x64.Build.0 = Debug|Any CPU
+		{3BCACB4B-8506-4A5C-B4EE-FC76627EBE11}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{3BCACB4B-8506-4A5C-B4EE-FC76627EBE11}.Debug|x86.Build.0 = Debug|Any CPU
+		{3BCACB4B-8506-4A5C-B4EE-FC76627EBE11}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{3BCACB4B-8506-4A5C-B4EE-FC76627EBE11}.Release|Any CPU.Build.0 = Release|Any CPU
+		{3BCACB4B-8506-4A5C-B4EE-FC76627EBE11}.Release|x64.ActiveCfg = Release|Any CPU
+		{3BCACB4B-8506-4A5C-B4EE-FC76627EBE11}.Release|x64.Build.0 = Release|Any CPU
+		{3BCACB4B-8506-4A5C-B4EE-FC76627EBE11}.Release|x86.ActiveCfg = Release|Any CPU
+		{3BCACB4B-8506-4A5C-B4EE-FC76627EBE11}.Release|x86.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal

samples/frontend-backend/frontend/ConfigurationExtensions.cs

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+using System;
+
+namespace Microsoft.Extensions.Configuration
+{
+    public static class ConfigurationExtensions
+    {
+        public static Uri? GetServiceUri(this IConfiguration configuration, string name)
+        {
+            var host = configuration[$"service:{name}:host"];
+            var port = configuration[$"service:{name}:port"];
+            var protocol = configuration[$"service:{name}:protocol"] ?? "http";
+
+            if (string.IsNullOrEmpty(host) || port == null)
+            {
+                return null;
+            }
+
+            return new Uri(protocol + "://" + host + ":" + port + "/");
+        }
+    }
+}

samples/frontend-backend/frontend/Program.cs

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+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Hosting;
+
+namespace Frontend
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            CreateHostBuilder(args).Build().Run();
+        }
+
+        public static IHostBuilder CreateHostBuilder(string[] args) =>
+            Host.CreateDefaultBuilder(args)
+                .ConfigureWebHostDefaults(webBuilder =>
+                {
+                    webBuilder.UseStartup<Startup>();
+                });
+    }
+}

samples/frontend-backend/frontend/Properties/launchSettings.json

@@ -0,0 +1,27 @@
+{
+  "iisSettings": {
+    "windowsAuthentication": false, 
+    "anonymousAuthentication": true, 
+    "iisExpress": {
+      "applicationUrl": "http://localhost:16377",
+      "sslPort": 44392
+    }
+  },
+  "profiles": {
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "frontend": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "applicationUrl": "https://localhost:5001;http://localhost:5000",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

samples/frontend-backend/frontend/Startup.cs

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+using System;
+using System.Net;
+using System.Net.Http;
+using System.Text.Json;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Http.Features;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+
+namespace Frontend
+{
+    public class Startup
+    {
+        private readonly JsonSerializerOptions options = new JsonSerializerOptions()
+        {
+            PropertyNameCaseInsensitive = true,
+            PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
+        };
+
+        public Startup(IConfiguration configuration)
+        {
+            Configuration = configuration;
+        }
+
+        public IConfiguration Configuration { get; }
+
+        public void ConfigureServices(IServiceCollection services)
+        {
+            services.AddHealthChecks();
+        }
+
+        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
+        {
+            if (env.IsDevelopment())
+            {
+                app.UseDeveloperExceptionPage();
+            }
+
+            app.UseRouting();
+
+            app.UseEndpoints(endpoints =>
+            {
+                var httpClient = new HttpClient()
+                {
+                    BaseAddress = Configuration.GetServiceUri("backend"),
+                };
+
+                endpoints.MapGet("/", async context =>
+                {
+                    var bytes = await httpClient.GetByteArrayAsync("/");
+                    var backendInfo = JsonSerializer.Deserialize<BackendInfo>(bytes, options);
+
+                    var connection = context.Features.Get<IHttpConnectionFeature>();
+                    await context.Response.WriteAsync($"Frontend Listening IP: {connection.LocalIpAddress}{Environment.NewLine}");
+                    await context.Response.WriteAsync($"Frontend Hostname: {Dns.GetHostName()}{Environment.NewLine}");
+                    await context.Response.WriteAsync($"EnvVar Configuration value: {Configuration["App:Value"]}{Environment.NewLine}");
+
+                    await context.Response.WriteAsync($"Backend Listening IP: {backendInfo.IP}{Environment.NewLine}");
+                    await context.Response.WriteAsync($"Backend Hostname: {backendInfo.Hostname}{Environment.NewLine}");
+                });
+                
+                endpoints.MapHealthChecks("/healthz");
+            });
+        }
+
+        class BackendInfo
+        {
+            public string IP { get; set; } = default!;
+
+            public string Hostname { get; set; } = default!;
+        }
+    }
+}

samples/frontend-backend/frontend/appsettings.Development.json

@@ -0,0 +1,9 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft": "Warning",
+      "Microsoft.Hosting.Lifetime": "Information"
+    }
+  }
+}

samples/frontend-backend/frontend/appsettings.json

@@ -0,0 +1,10 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft": "Warning",
+      "Microsoft.Hosting.Lifetime": "Information"
+    }
+  },
+  "AllowedHosts": "*"
+}

samples/frontend-backend/frontend/frontend.csproj

@@ -0,0 +1,8 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <RootNamespace>Frontend</RootNamespace>
+  </PropertyGroup>
+
+</Project>

samples/frontend-backend/tye.yaml

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+# tye application configuration file
+# read all about it at https://github.com/dotnet/tye
+name: frontend-backend
+services:
+- name: backend
+  project: backend/backend.csproj
+  bindings:
+  - port: 5050
+- name: frontend
+  project: frontend/frontend.csproj
+  bindings:
+  - port: 5051