Added an app concept to tye.yaml

- tye.yaml already has a name idea, when your applcation is split across multiple tye.yaml files, then the app groups them.
- The name field will be used to produce packages that encapsulate all services defined in a specific tye.yaml.

samples/multi-yaml/be/backend/IOrderService.cs

@@ -0,0 +1,15 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System.ServiceModel;
+using System.Threading.Tasks;
+
+namespace Shared
+{
+    [ServiceContract]
+    public interface IOrderService
+    {
+        ValueTask PlaceOrderAsync(Order order);
+    }
+}

samples/multi-yaml/be/backend/Order.cs

@@ -0,0 +1,22 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Runtime.Serialization;
+
+namespace Shared
+{
+    [DataContract]
+    public class Order
+    {
+        [DataMember(Order = 1)]
+        public Guid OrderId { get; set; }
+
+        [DataMember(Order = 2)]
+        public string UserId { get; set; } = default!;
+
+        [DataMember(Order = 3)]
+        public DateTime CreatedTime { get; set; }
+    }
+}

samples/multi-yaml/be/backend/OrdersService.cs

@@ -0,0 +1,42 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Logging;
+using RabbitMQ.Client;
+using Shared;
+
+namespace Backend
+{
+    public class OrdersService : IOrderService
+    {
+        private readonly ILogger<OrdersService> _logger;
+        private readonly IModel _client;
+
+        public OrdersService(ILogger<OrdersService> logger, IModel client)
+        {
+            _logger = logger;
+            _client = client;
+        }
+
+        public ValueTask PlaceOrderAsync(Order order)
+        {
+            var orderBytes = JsonSerializer.SerializeToUtf8Bytes(order);
+
+            // Use the raw log API to avoid formatting the JSON string (since it has {})
+            var text = Encoding.UTF8.GetString(orderBytes);
+            _logger.Log(LogLevel.Information, 0, "Recieved: " + text, exception: null, formatter: (m, e) => m);
+
+            _client.BasicPublish(
+                exchange: "",
+                routingKey: "orders",
+                basicProperties: null,
+                body: orderBytes);
+
+            return default;
+        }
+    }
+}

samples/multi-yaml/be/backend/Program.cs

@@ -0,0 +1,46 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Diagnostics;
+using System.IO;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.Server.Kestrel.Core;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Hosting;
+
+namespace Backend
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            Activity.DefaultIdFormat = ActivityIdFormat.W3C;
+
+            CreateHostBuilder(args).Build().Run();
+        }
+
+        public static IHostBuilder CreateHostBuilder(string[] args) =>
+            Host.CreateDefaultBuilder(args)
+                .ConfigureAppConfiguration(config =>
+                {
+                    if (Directory.Exists("/var/tye/bindings/"))
+                    {
+                        foreach (var directory in Directory.GetDirectories("/var/tye/bindings/"))
+                        {
+                            Console.WriteLine($"Adding config in '{directory}'.");
+                            config.AddKeyPerFile(directory, optional: true);
+                        }
+                    }
+                })
+                .ConfigureWebHostDefaults(web =>
+                {
+                    web.UseStartup<Startup>()
+                       .ConfigureKestrel(options =>
+                       {
+                           options.ConfigureEndpointDefaults(o => o.Protocols = HttpProtocols.Http2);
+                       });
+                });
+    }
+}

samples/multi-yaml/be/backend/Properties/launchSettings.json

@@ -0,0 +1,27 @@
+{
+  "iisSettings": {
+    "windowsAuthentication": false, 
+    "anonymousAuthentication": true, 
+    "iisExpress": {
+      "applicationUrl": "http://localhost:40079",
+      "sslPort": 44368
+    }
+  },
+  "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/multi-yaml/be/backend/Startup.cs

@@ -0,0 +1,79 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+using ProtoBuf.Grpc.Server;
+using RabbitMQ.Client;
+
+namespace Backend
+{
+    public class Startup
+    {
+        public Startup(IConfiguration configuration)
+        {
+            Configuration = configuration;
+        }
+
+        public IConfiguration Configuration { get; }
+
+        public void ConfigureServices(IServiceCollection services)
+        {
+            services.AddAuthorization();
+
+            services.AddCodeFirstGrpc();
+
+            services.AddSingleton(sp =>
+            {
+                AmqpTcpEndpoint endpoint;
+                var connectionString = Configuration["connectionstring:rabbit"];
+                if (connectionString == null)
+                {
+                    var host = Configuration["service:rabbit:host"];
+                    var port = int.Parse(Configuration["service:rabbit:port"]);
+                    endpoint = new AmqpTcpEndpoint(host, port);
+                }
+                else
+                {
+                    endpoint = new AmqpTcpEndpoint(new Uri(connectionString));
+                }
+
+                var factory = new ConnectionFactory()
+                {
+                    Endpoint = endpoint,
+                };
+                var connection = factory.CreateConnection();
+                var channel = connection.CreateModel();
+
+                channel.QueueDeclare(queue: "orders",
+                                     durable: false,
+                                     exclusive: false,
+                                     autoDelete: false,
+                                     arguments: null);
+                return channel;
+            });
+        }
+
+        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
+        {
+            if (env.IsDevelopment())
+            {
+                app.UseDeveloperExceptionPage();
+            }
+
+            app.UseRouting();
+
+            app.UseAuthorization();
+
+            app.UseEndpoints(endpoints =>
+            {
+                endpoints.MapGrpcService<OrdersService>();
+            });
+        }
+    }
+}

samples/multi-yaml/be/backend/appsettings.Development.json

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

samples/multi-yaml/be/backend/appsettings.json

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

samples/multi-yaml/be/backend/backend.csproj

@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <RootNamespace>Backend</RootNamespace>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Configuration.KeyPerFile" Version="3.1.1" />
+    <PackageReference Include="RabbitMQ.Client" Version="5.1.2" />
+    <PackageReference Include="protobuf-net.Grpc.AspNetCore" Version="1.0.21" />
+  </ItemGroup>
+</Project>

samples/multi-yaml/be/be.sln

@@ -0,0 +1,48 @@
+
+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", "{DF0A34E2-E61F-42EF-8172-80816A36A5E1}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "worker", "worker\worker.csproj", "{E5307146-3E16-426C-B673-5D6D4B6528CC}"
+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
+		{DF0A34E2-E61F-42EF-8172-80816A36A5E1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{DF0A34E2-E61F-42EF-8172-80816A36A5E1}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{DF0A34E2-E61F-42EF-8172-80816A36A5E1}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{DF0A34E2-E61F-42EF-8172-80816A36A5E1}.Debug|x64.Build.0 = Debug|Any CPU
+		{DF0A34E2-E61F-42EF-8172-80816A36A5E1}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{DF0A34E2-E61F-42EF-8172-80816A36A5E1}.Debug|x86.Build.0 = Debug|Any CPU
+		{DF0A34E2-E61F-42EF-8172-80816A36A5E1}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{DF0A34E2-E61F-42EF-8172-80816A36A5E1}.Release|Any CPU.Build.0 = Release|Any CPU
+		{DF0A34E2-E61F-42EF-8172-80816A36A5E1}.Release|x64.ActiveCfg = Release|Any CPU
+		{DF0A34E2-E61F-42EF-8172-80816A36A5E1}.Release|x64.Build.0 = Release|Any CPU
+		{DF0A34E2-E61F-42EF-8172-80816A36A5E1}.Release|x86.ActiveCfg = Release|Any CPU
+		{DF0A34E2-E61F-42EF-8172-80816A36A5E1}.Release|x86.Build.0 = Release|Any CPU
+		{E5307146-3E16-426C-B673-5D6D4B6528CC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{E5307146-3E16-426C-B673-5D6D4B6528CC}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{E5307146-3E16-426C-B673-5D6D4B6528CC}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{E5307146-3E16-426C-B673-5D6D4B6528CC}.Debug|x64.Build.0 = Debug|Any CPU
+		{E5307146-3E16-426C-B673-5D6D4B6528CC}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{E5307146-3E16-426C-B673-5D6D4B6528CC}.Debug|x86.Build.0 = Debug|Any CPU
+		{E5307146-3E16-426C-B673-5D6D4B6528CC}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{E5307146-3E16-426C-B673-5D6D4B6528CC}.Release|Any CPU.Build.0 = Release|Any CPU
+		{E5307146-3E16-426C-B673-5D6D4B6528CC}.Release|x64.ActiveCfg = Release|Any CPU
+		{E5307146-3E16-426C-B673-5D6D4B6528CC}.Release|x64.Build.0 = Release|Any CPU
+		{E5307146-3E16-426C-B673-5D6D4B6528CC}.Release|x86.ActiveCfg = Release|Any CPU
+		{E5307146-3E16-426C-B673-5D6D4B6528CC}.Release|x86.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal

samples/multi-yaml/be/tye.yaml

@@ -0,0 +1,11 @@
+app: multi-tye # name of the bigger application
+name: backend # name of this application
+services:
+- name: backend
+  project: backend/backend.csproj
+- name: worker
+  project: worker/worker.csproj
+- name: rabbit
+  image: rabbitmq:3-management
+  bindings:
+    - port: 5672

samples/multi-yaml/be/worker/Program.cs

@@ -0,0 +1,39 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.IO;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Configuration.KeyPerFile;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+
+namespace Worker
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            CreateHostBuilder(args).Build().Run();
+        }
+
+        public static IHostBuilder CreateHostBuilder(string[] args) =>
+            Host.CreateDefaultBuilder(args)
+                .ConfigureAppConfiguration(config =>
+                {
+                    if (Directory.Exists("/var/tye/bindings/"))
+                    {
+                        foreach (var directory in Directory.GetDirectories("/var/tye/bindings/"))
+                        {
+                            Console.WriteLine($"Adding config in '{directory}'.");
+                            config.AddKeyPerFile(directory, optional: true);
+                        }
+                    }
+                })
+                .ConfigureServices((hostContext, services) =>
+                {
+                    services.AddHostedService<QueueWorker>();
+                });
+    }
+}

samples/multi-yaml/be/worker/Properties/launchSettings.json

@@ -0,0 +1,10 @@
+{
+  "profiles": {
+    "worker": {
+      "commandName": "Project",
+      "environmentVariables": {
+        "DOTNET_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

samples/multi-yaml/be/worker/QueueWorker.cs

@@ -0,0 +1,111 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Runtime.ExceptionServices;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+using RabbitMQ.Client;
+using RabbitMQ.Client.Events;
+
+namespace Worker
+{
+    public class QueueWorker : IHostedService
+    {
+        private readonly IConfiguration _configuration;
+        private readonly ILogger<QueueWorker> _logger;
+
+        public QueueWorker(ILogger<QueueWorker> logger, IConfiguration configuration)
+        {
+            _logger = logger;
+            _configuration = configuration;
+        }
+
+        public async Task StartAsync(CancellationToken cancellationToken)
+        {
+            try
+            {
+                var queue = await ConnectAsync(cancellationToken);
+                queue.QueueDeclare(
+                    queue: "orders",
+                    durable: false,
+                    exclusive: false,
+                    autoDelete: false,
+                    arguments: null);
+
+                var consumer = new EventingBasicConsumer(queue);
+                consumer.Received += (model, ea) =>
+                {
+                    // Use the raw log API to avoid formatting the JSON string (since it has {})
+                    var text = Encoding.UTF8.GetString(ea.Body);
+                    _logger.Log(LogLevel.Information, 0, "Dequeued " + text, exception: null, formatter: (m, e) => m);
+                };
+
+                queue.BasicConsume(
+                    queue: "orders",
+                    autoAck: true,
+                    consumer: consumer);
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(0, ex, "Failed to start listening to rabbit mq");
+                throw;
+            }
+        }
+
+        private async Task<IModel> ConnectAsync(CancellationToken cancellationToken)
+        {
+            ExceptionDispatchInfo? edi = null;
+            for (var i = 0; i < 5; i++)
+            {
+                try
+                {
+                    AmqpTcpEndpoint endpoint;
+                    var connectionString = _configuration["connectionstring:rabbit"];
+                    if (connectionString == null)
+                    {
+                        var host = _configuration["service:rabbit:host"];
+                        var port = int.Parse(_configuration["service:rabbit:port"]);
+                        endpoint = new AmqpTcpEndpoint(host, port);
+                    }
+                    else
+                    {
+                        endpoint = new AmqpTcpEndpoint(new Uri(connectionString));
+                    }
+
+                    var factory = new ConnectionFactory()
+                    {
+                        Endpoint = endpoint,
+                    };
+
+                    var connection = factory.CreateConnection();
+                    return connection.CreateModel();
+                }
+                catch (Exception ex)
+                {
+                    if (i == 4)
+                    {
+                        edi = ExceptionDispatchInfo.Capture(ex);
+                    }
+
+                    _logger.LogError(0, ex, "Failed to start listening to rabbit mq");
+                }
+
+                await Task.Delay(5000, cancellationToken);
+            }
+
+            edi!.Throw();
+            throw null; //unreachable
+        }
+
+        public Task StopAsync(CancellationToken cancellationToken)
+        {
+            return Task.CompletedTask;
+        }
+    }
+}

samples/multi-yaml/be/worker/appsettings.Development.json

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

samples/multi-yaml/be/worker/appsettings.json

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

samples/multi-yaml/be/worker/worker.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk.Worker">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <UserSecretsId>dotnet-worker-E4419EA1-F496-4FE1-A024-7E75E40B9E10</UserSecretsId>
+    <RootNamespace>Worker</RootNamespace>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Configuration.KeyPerFile" Version="3.1.1" />
+    <PackageReference Include="Microsoft.Extensions.Hosting" Version="3.1.1" />
+    <PackageReference Include="RabbitMQ.Client" Version="5.1.2" />
+  </ItemGroup>
+</Project>

samples/multi-yaml/deploy/rabbitmq.yaml

@@ -0,0 +1,50 @@
+kind: Deployment
+apiVersion: apps/v1
+metadata:
+  name: rabbitmq
+  labels:
+    app.kubernetes.io/name: rabbitmq
+    app.kubernetes.io/part-of: multi-project
+spec:
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: rabbitmq
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: rabbitmq
+        app.kubernetes.io/part-of: multi-project
+    spec:
+      containers:
+      - name: rabbitmq
+        image: rabbitmq:3-management
+        ports:
+        - containerPort: 5672
+        - containerPort: 15672
+...
+---
+kind: Service
+apiVersion: v1
+metadata:
+  name: rabbitmq
+  labels:
+    app.kubernetes.io/name: rabbitmq
+    app.kubernetes.io/part-of: multi-project
+spec:
+  selector:
+    app.kubernetes.io/name: rabbitmq
+  type: ClusterIP
+  ports:
+  - name: rabbitmq
+    protocol: TCP
+    port: 5672
+    targetPort: 5672
+...
+# ---
+# apiVersion: v1
+# kind: Secret
+# metadata:
+#   name: binding-production-rabbit-rabbit-secret
+# type: Opaque
+# stringData:
+#   connectionstring: amqp://rabbitmq:5672

samples/multi-yaml/fe/fe.sln

@@ -0,0 +1,34 @@
+
+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}") = "frontend", "frontend\frontend.csproj", "{41E8AA50-C536-488A-92AD-401830C9760B}"
+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
+		{41E8AA50-C536-488A-92AD-401830C9760B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{41E8AA50-C536-488A-92AD-401830C9760B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{41E8AA50-C536-488A-92AD-401830C9760B}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{41E8AA50-C536-488A-92AD-401830C9760B}.Debug|x64.Build.0 = Debug|Any CPU
+		{41E8AA50-C536-488A-92AD-401830C9760B}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{41E8AA50-C536-488A-92AD-401830C9760B}.Debug|x86.Build.0 = Debug|Any CPU
+		{41E8AA50-C536-488A-92AD-401830C9760B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{41E8AA50-C536-488A-92AD-401830C9760B}.Release|Any CPU.Build.0 = Release|Any CPU
+		{41E8AA50-C536-488A-92AD-401830C9760B}.Release|x64.ActiveCfg = Release|Any CPU
+		{41E8AA50-C536-488A-92AD-401830C9760B}.Release|x64.Build.0 = Release|Any CPU
+		{41E8AA50-C536-488A-92AD-401830C9760B}.Release|x86.ActiveCfg = Release|Any CPU
+		{41E8AA50-C536-488A-92AD-401830C9760B}.Release|x86.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal

samples/multi-yaml/fe/frontend/ConfigurationExtensions.cs

@@ -0,0 +1,25 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+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/multi-yaml/fe/frontend/IOrderService.cs

@@ -0,0 +1,15 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System.ServiceModel;
+using System.Threading.Tasks;
+
+namespace Shared
+{
+    [ServiceContract]
+    public interface IOrderService
+    {
+        ValueTask PlaceOrderAsync(Order order);
+    }
+}

samples/multi-yaml/fe/frontend/Order.cs

@@ -0,0 +1,22 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Runtime.Serialization;
+
+namespace Shared
+{
+    [DataContract]
+    public class Order
+    {
+        [DataMember(Order = 1)]
+        public Guid OrderId { get; set; }
+
+        [DataMember(Order = 2)]
+        public string UserId { get; set; } = default!;
+
+        [DataMember(Order = 3)]
+        public DateTime CreatedTime { get; set; }
+    }
+}

samples/multi-yaml/fe/frontend/Pages/Error.cshtml

@@ -0,0 +1,26 @@
+@page
+@model ErrorModel
+@{
+    ViewData["Title"] = "Error";
+}
+
+<h1 class="text-danger">Error.</h1>
+<h2 class="text-danger">An error occurred while processing your request.</h2>
+
+@if (Model.ShowRequestId)
+{
+    <p>
+        <strong>Request ID:</strong> <code>@Model.RequestId</code>
+    </p>
+}
+
+<h3>Development Mode</h3>
+<p>
+    Swapping to the <strong>Development</strong> environment displays detailed information about the error that occurred.
+</p>
+<p>
+    <strong>The Development environment shouldn't be enabled for deployed applications.</strong>
+    It can result in displaying sensitive information from exceptions to end users.
+    For local debugging, enable the <strong>Development</strong> environment by setting the <strong>ASPNETCORE_ENVIRONMENT</strong> environment variable to <strong>Development</strong>
+    and restarting the app.
+</p>

samples/multi-yaml/fe/frontend/Pages/Error.cshtml.cs

@@ -0,0 +1,31 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System.Diagnostics;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using Microsoft.Extensions.Logging;
+
+namespace Frontend.Pages
+{
+    [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
+    public class ErrorModel : PageModel
+    {
+        public string? RequestId { get; set; }
+
+        public bool ShowRequestId => !string.IsNullOrEmpty(RequestId);
+
+        private readonly ILogger<ErrorModel> _logger;
+
+        public ErrorModel(ILogger<ErrorModel> logger)
+        {
+            _logger = logger;
+        }
+
+        public void OnGet()
+        {
+            RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier;
+        }
+    }
+}

samples/multi-yaml/fe/frontend/Pages/Index.cshtml

@@ -0,0 +1,14 @@
+@page
+@model IndexModel
+@{
+    ViewData["Title"] = "Home page";
+}
+
+<div class="text-center">
+    <h1 class="display-4">Welcome</h1>
+    <p>Learn about <a href="https://docs.microsoft.com/aspnet/core">building Web apps with ASP.NET Core</a>.</p>
+</div>
+
+<form method="post">
+    <input type="submit" value="Submit Order" />
+</form>

samples/multi-yaml/fe/frontend/Pages/Index.cshtml.cs

@@ -0,0 +1,34 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using Shared;
+
+namespace Frontend.Pages
+{
+    public class IndexModel : PageModel
+    {
+        public void OnGet()
+        {
+
+        }
+
+        public async Task<IActionResult> OnPost([FromServices] IOrderService client)
+        {
+            var order = new Order
+            {
+                OrderId = Guid.NewGuid(),
+                CreatedTime = DateTime.UtcNow,
+                UserId = User.Identity.Name!
+            };
+
+            await client.PlaceOrderAsync(order);
+
+            return Redirect("/");
+        }
+    }
+}

samples/multi-yaml/fe/frontend/Pages/Privacy.cshtml

@@ -0,0 +1,8 @@
+@page
+@model PrivacyModel
+@{
+    ViewData["Title"] = "Privacy Policy";
+}
+<h1>@ViewData["Title"]</h1>
+
+<p>Use this page to detail your site's privacy policy.</p>

samples/multi-yaml/fe/frontend/Pages/Privacy.cshtml.cs

@@ -0,0 +1,23 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using Microsoft.Extensions.Logging;
+
+namespace Frontend.Pages
+{
+    public class PrivacyModel : PageModel
+    {
+        private readonly ILogger<PrivacyModel> _logger;
+
+        public PrivacyModel(ILogger<PrivacyModel> logger)
+        {
+            _logger = logger;
+        }
+
+        public void OnGet()
+        {
+        }
+    }
+}

samples/multi-yaml/fe/frontend/Pages/Shared/_Layout.cshtml

@@ -0,0 +1,50 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>@ViewData["Title"] - Frontend</title>
+    <link rel="stylesheet" href="~/lib/bootstrap/dist/css/bootstrap.min.css" />
+    <link rel="stylesheet" href="~/css/site.css" />
+</head>
+<body>
+    <header>
+        <nav class="navbar navbar-expand-sm navbar-toggleable-sm navbar-light bg-white border-bottom box-shadow mb-3">
+            <div class="container">
+                <a class="navbar-brand" asp-area="" asp-page="/Index">Frontend</a>
+                <button class="navbar-toggler" type="button" data-toggle="collapse" data-target=".navbar-collapse" aria-controls="navbarSupportedContent"
+                        aria-expanded="false" aria-label="Toggle navigation">
+                    <span class="navbar-toggler-icon"></span>
+                </button>
+                <div class="navbar-collapse collapse d-sm-inline-flex flex-sm-row-reverse">
+                    <ul class="navbar-nav flex-grow-1">
+                        <li class="nav-item">
+                            <a class="nav-link text-dark" asp-area="" asp-page="/Index">Home</a>
+                        </li>
+                        <li class="nav-item">
+                            <a class="nav-link text-dark" asp-area="" asp-page="/Privacy">Privacy</a>
+                        </li>
+                    </ul>
+                </div>
+            </div>
+        </nav>
+    </header>
+    <div class="container">
+        <main role="main" class="pb-3">
+            @RenderBody()
+        </main>
+    </div>
+
+    <footer class="border-top footer text-muted">
+        <div class="container">
+            &copy; 2020 - Frontend - <a asp-area="" asp-page="/Privacy">Privacy</a>
+        </div>
+    </footer>
+
+    <script src="~/lib/jquery/dist/jquery.min.js"></script>
+    <script src="~/lib/bootstrap/dist/js/bootstrap.bundle.min.js"></script>
+    <script src="~/js/site.js" asp-append-version="true"></script>
+
+    @RenderSection("Scripts", required: false)
+</body>
+</html>

samples/multi-yaml/fe/frontend/Pages/Shared/_ValidationScriptsPartial.cshtml

@@ -0,0 +1,2 @@
+<script src="~/lib/jquery-validation/dist/jquery.validate.min.js"></script>
+<script src="~/lib/jquery-validation-unobtrusive/jquery.validate.unobtrusive.min.js"></script>

samples/multi-yaml/fe/frontend/Pages/_ViewImports.cshtml

@@ -0,0 +1,3 @@
+@using Frontend
+@namespace Frontend.Pages
+@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers

samples/multi-yaml/fe/frontend/Pages/_ViewStart.cshtml

@@ -0,0 +1,3 @@
+@{
+    Layout = "_Layout";
+}

samples/multi-yaml/fe/frontend/Program.cs

@@ -0,0 +1,43 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Diagnostics;
+using System.IO;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Hosting;
+using ProtoBuf.Grpc.Client;
+
+namespace Frontend
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            Activity.DefaultIdFormat = ActivityIdFormat.W3C;
+            GrpcClientFactory.AllowUnencryptedHttp2 = true;
+
+            CreateHostBuilder(args).Build().Run();
+        }
+
+        public static IHostBuilder CreateHostBuilder(string[] args) =>
+            Host.CreateDefaultBuilder(args)
+                .ConfigureAppConfiguration(config =>
+                {
+                    if (Directory.Exists("/var/tye/bindings/"))
+                    {
+                        foreach (var directory in Directory.GetDirectories("/var/tye/bindings/"))
+                        {
+                            Console.WriteLine($"Adding config in '{directory}'.");
+                            config.AddKeyPerFile(directory, optional: true);
+                        }
+                    }
+                })
+                .ConfigureWebHostDefaults(webBuilder =>
+                {
+                    webBuilder.UseStartup<Startup>();
+                });
+    }
+}

samples/multi-yaml/fe/frontend/Properties/launchSettings.json

@@ -0,0 +1,27 @@
+{
+  "iisSettings": {
+    "windowsAuthentication": false, 
+    "anonymousAuthentication": true, 
+    "iisExpress": {
+      "applicationUrl": "http://localhost:46024",
+      "sslPort": 44343
+    }
+  },
+  "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/multi-yaml/fe/frontend/Startup.cs

@@ -0,0 +1,52 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using Grpc.Net.Client;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+using ProtoBuf.Grpc.Client;
+using Shared;
+
+namespace Frontend
+{
+    public class Startup
+    {
+        public Startup(IConfiguration configuration)
+        {
+            Configuration = configuration;
+        }
+
+        public IConfiguration Configuration { get; }
+
+        public void ConfigureServices(IServiceCollection services)
+        {
+            services.AddRazorPages();
+
+            var address = Configuration.GetServiceUri("backend");
+            services.AddSingleton(_ => GrpcChannel.ForAddress(address!).CreateGrpcService<IOrderService>());
+        }
+
+        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
+        {
+            if (env.IsDevelopment())
+            {
+                app.UseDeveloperExceptionPage();
+            }
+
+            app.UseStaticFiles();
+
+            app.UseRouting();
+
+            app.UseAuthorization();
+
+            app.UseEndpoints(endpoints =>
+            {
+                endpoints.MapRazorPages();
+            });
+        }
+    }
+}

samples/multi-yaml/fe/frontend/appsettings.Development.json

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

samples/multi-yaml/fe/frontend/appsettings.json

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

samples/multi-yaml/fe/frontend/frontend.csproj

@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Configuration.KeyPerFile" Version="3.1.1" />
+    <PackageReference Include="Grpc.Net.Client" Version="2.26.0" />
+    <PackageReference Include="protobuf-net.Grpc" Version="1.0.21" />
+  </ItemGroup>
+
+</Project>

samples/multi-yaml/fe/frontend/wwwroot/css/site.css

@@ -0,0 +1,71 @@
+/* Please see documentation at https://docs.microsoft.com/aspnet/core/client-side/bundling-and-minification
+for details on configuring this project to bundle and minify static web assets. */
+
+a.navbar-brand {
+  white-space: normal;
+  text-align: center;
+  word-break: break-all;
+}
+
+/* Provide sufficient contrast against white background */
+a {
+  color: #0366d6;
+}
+
+.btn-primary {
+  color: #fff;
+  background-color: #1b6ec2;
+  border-color: #1861ac;
+}
+
+.nav-pills .nav-link.active, .nav-pills .show > .nav-link {
+  color: #fff;
+  background-color: #1b6ec2;
+  border-color: #1861ac;
+}
+
+/* Sticky footer styles
+-------------------------------------------------- */
+html {
+  font-size: 14px;
+}
+@media (min-width: 768px) {
+  html {
+    font-size: 16px;
+  }
+}
+
+.border-top {
+  border-top: 1px solid #e5e5e5;
+}
+.border-bottom {
+  border-bottom: 1px solid #e5e5e5;
+}
+
+.box-shadow {
+  box-shadow: 0 .25rem .75rem rgba(0, 0, 0, .05);
+}
+
+button.accept-policy {
+  font-size: 1rem;
+  line-height: inherit;
+}
+
+/* Sticky footer styles
+-------------------------------------------------- */
+html {
+  position: relative;
+  min-height: 100%;
+}
+
+body {
+  /* Margin bottom by footer height */
+  margin-bottom: 60px;
+}
+.footer {
+  position: absolute;
+  bottom: 0;
+  width: 100%;
+  white-space: nowrap;
+  line-height: 60px; /* Vertically center the text there */
+}

samples/multi-yaml/fe/frontend/wwwroot/js/site.js

@@ -0,0 +1,4 @@
+// Please see documentation at https://docs.microsoft.com/aspnet/core/client-side/bundling-and-minification
+// for details on configuring this project to bundle and minify static web assets.
+
+// Write your Javascript code.

samples/multi-yaml/fe/frontend/wwwroot/lib/bootstrap/LICENSE

@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2011-2018 Twitter, Inc.
+Copyright (c) 2011-2018 The Bootstrap Authors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

samples/multi-yaml/fe/frontend/wwwroot/lib/bootstrap/dist/css/bootstrap-reboot.css

@@ -0,0 +1,331 @@
+/*!
+ * Bootstrap Reboot v4.3.1 (https://getbootstrap.com/)
+ * Copyright 2011-2019 The Bootstrap Authors
+ * Copyright 2011-2019 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * Forked from Normalize.css, licensed MIT (https://github.com/necolas/normalize.css/blob/master/LICENSE.md)
+ */
+*,
+*::before,
+*::after {
+  box-sizing: border-box;
+}
+
+html {
+  font-family: sans-serif;
+  line-height: 1.15;
+  -webkit-text-size-adjust: 100%;
+  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
+}
+
+article, aside, figcaption, figure, footer, header, hgroup, main, nav, section {
+  display: block;
+}
+
+body {
+  margin: 0;
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
+  font-size: 1rem;
+  font-weight: 400;
+  line-height: 1.5;
+  color: #212529;
+  text-align: left;
+  background-color: #fff;
+}
+
+[tabindex="-1"]:focus {
+  outline: 0 !important;
+}
+
+hr {
+  box-sizing: content-box;
+  height: 0;
+  overflow: visible;
+}
+
+h1, h2, h3, h4, h5, h6 {
+  margin-top: 0;
+  margin-bottom: 0.5rem;
+}
+
+p {
+  margin-top: 0;
+  margin-bottom: 1rem;
+}
+
+abbr[title],
+abbr[data-original-title] {
+  text-decoration: underline;
+  -webkit-text-decoration: underline dotted;
+  text-decoration: underline dotted;
+  cursor: help;
+  border-bottom: 0;
+  -webkit-text-decoration-skip-ink: none;
+  text-decoration-skip-ink: none;
+}
+
+address {
+  margin-bottom: 1rem;
+  font-style: normal;
+  line-height: inherit;
+}
+
+ol,
+ul,
+dl {
+  margin-top: 0;
+  margin-bottom: 1rem;
+}
+
+ol ol,
+ul ul,
+ol ul,
+ul ol {
+  margin-bottom: 0;
+}
+
+dt {
+  font-weight: 700;
+}
+
+dd {
+  margin-bottom: .5rem;
+  margin-left: 0;
+}
+
+blockquote {
+  margin: 0 0 1rem;
+}
+
+b,
+strong {
+  font-weight: bolder;
+}
+
+small {
+  font-size: 80%;
+}
+
+sub,
+sup {
+  position: relative;
+  font-size: 75%;
+  line-height: 0;
+  vertical-align: baseline;
+}
+
+sub {
+  bottom: -.25em;
+}
+
+sup {
+  top: -.5em;
+}
+
+a {
+  color: #007bff;
+  text-decoration: none;
+  background-color: transparent;
+}
+
+a:hover {
+  color: #0056b3;
+  text-decoration: underline;
+}
+
+a:not([href]):not([tabindex]) {
+  color: inherit;
+  text-decoration: none;
+}
+
+a:not([href]):not([tabindex]):hover, a:not([href]):not([tabindex]):focus {
+  color: inherit;
+  text-decoration: none;
+}
+
+a:not([href]):not([tabindex]):focus {
+  outline: 0;
+}
+
+pre,
+code,
+kbd,
+samp {
+  font-family: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
+  font-size: 1em;
+}
+
+pre {
+  margin-top: 0;
+  margin-bottom: 1rem;
+  overflow: auto;
+}
+
+figure {
+  margin: 0 0 1rem;
+}
+
+img {
+  vertical-align: middle;
+  border-style: none;
+}
+
+svg {
+  overflow: hidden;
+  vertical-align: middle;
+}
+
+table {
+  border-collapse: collapse;
+}
+
+caption {
+  padding-top: 0.75rem;
+  padding-bottom: 0.75rem;
+  color: #6c757d;
+  text-align: left;
+  caption-side: bottom;
+}
+
+th {
+  text-align: inherit;
+}
+
+label {
+  display: inline-block;
+  margin-bottom: 0.5rem;
+}
+
+button {
+  border-radius: 0;
+}
+
+button:focus {
+  outline: 1px dotted;
+  outline: 5px auto -webkit-focus-ring-color;
+}
+
+input,
+button,
+select,
+optgroup,
+textarea {
+  margin: 0;
+  font-family: inherit;
+  font-size: inherit;
+  line-height: inherit;
+}
+
+button,
+input {
+  overflow: visible;
+}
+
+button,
+select {
+  text-transform: none;
+}
+
+select {
+  word-wrap: normal;
+}
+
+button,
+[type="button"],
+[type="reset"],
+[type="submit"] {
+  -webkit-appearance: button;
+}
+
+button:not(:disabled),
+[type="button"]:not(:disabled),
+[type="reset"]:not(:disabled),
+[type="submit"]:not(:disabled) {
+  cursor: pointer;
+}
+
+button::-moz-focus-inner,
+[type="button"]::-moz-focus-inner,
+[type="reset"]::-moz-focus-inner,
+[type="submit"]::-moz-focus-inner {
+  padding: 0;
+  border-style: none;
+}
+
+input[type="radio"],
+input[type="checkbox"] {
+  box-sizing: border-box;
+  padding: 0;
+}
+
+input[type="date"],
+input[type="time"],
+input[type="datetime-local"],
+input[type="month"] {
+  -webkit-appearance: listbox;
+}
+
+textarea {
+  overflow: auto;
+  resize: vertical;
+}
+
+fieldset {
+  min-width: 0;
+  padding: 0;
+  margin: 0;
+  border: 0;
+}
+
+legend {
+  display: block;
+  width: 100%;
+  max-width: 100%;
+  padding: 0;
+  margin-bottom: .5rem;
+  font-size: 1.5rem;
+  line-height: inherit;
+  color: inherit;
+  white-space: normal;
+}
+
+progress {
+  vertical-align: baseline;
+}
+
+[type="number"]::-webkit-inner-spin-button,
+[type="number"]::-webkit-outer-spin-button {
+  height: auto;
+}
+
+[type="search"] {
+  outline-offset: -2px;
+  -webkit-appearance: none;
+}
+
+[type="search"]::-webkit-search-decoration {
+  -webkit-appearance: none;
+}
+
+::-webkit-file-upload-button {
+  font: inherit;
+  -webkit-appearance: button;
+}
+
+output {
+  display: inline-block;
+}
+
+summary {
+  display: list-item;
+  cursor: pointer;
+}
+
+template {
+  display: none;
+}
+
+[hidden] {
+  display: none !important;
+}
+/*# sourceMappingURL=bootstrap-reboot.css.map */

samples/multi-yaml/fe/frontend/wwwroot/lib/bootstrap/dist/css/bootstrap-reboot.min.css

@@ -0,0 +1,8 @@
+/*!
+ * Bootstrap Reboot v4.3.1 (https://getbootstrap.com/)
+ * Copyright 2011-2019 The Bootstrap Authors
+ * Copyright 2011-2019 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * Forked from Normalize.css, licensed MIT (https://github.com/necolas/normalize.css/blob/master/LICENSE.md)
+ */*,::after,::before{box-sizing:border-box}html{font-family:sans-serif;line-height:1.15;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}article,aside,figcaption,figure,footer,header,hgroup,main,nav,section{display:block}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";font-size:1rem;font-weight:400;line-height:1.5;color:#212529;text-align:left;background-color:#fff}[tabindex="-1"]:focus{outline:0!important}hr{box-sizing:content-box;height:0;overflow:visible}h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:.5rem}p{margin-top:0;margin-bottom:1rem}abbr[data-original-title],abbr[title]{text-decoration:underline;-webkit-text-decoration:underline dotted;text-decoration:underline dotted;cursor:help;border-bottom:0;-webkit-text-decoration-skip-ink:none;text-decoration-skip-ink:none}address{margin-bottom:1rem;font-style:normal;line-height:inherit}dl,ol,ul{margin-top:0;margin-bottom:1rem}ol ol,ol ul,ul ol,ul ul{margin-bottom:0}dt{font-weight:700}dd{margin-bottom:.5rem;margin-left:0}blockquote{margin:0 0 1rem}b,strong{font-weight:bolder}small{font-size:80%}sub,sup{position:relative;font-size:75%;line-height:0;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}a{color:#007bff;text-decoration:none;background-color:transparent}a:hover{color:#0056b3;text-decoration:underline}a:not([href]):not([tabindex]){color:inherit;text-decoration:none}a:not([href]):not([tabindex]):focus,a:not([href]):not([tabindex]):hover{color:inherit;text-decoration:none}a:not([href]):not([tabindex]):focus{outline:0}code,kbd,pre,samp{font-family:SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;font-size:1em}pre{margin-top:0;margin-bottom:1rem;overflow:auto}figure{margin:0 0 1rem}img{vertical-align:middle;border-style:none}svg{overflow:hidden;vertical-align:middle}table{border-collapse:collapse}caption{padding-top:.75rem;padding-bottom:.75rem;color:#6c757d;text-align:left;caption-side:bottom}th{text-align:inherit}label{display:inline-block;margin-bottom:.5rem}button{border-radius:0}button:focus{outline:1px dotted;outline:5px auto -webkit-focus-ring-color}button,input,optgroup,select,textarea{margin:0;font-family:inherit;font-size:inherit;line-height:inherit}button,input{overflow:visible}button,select{text-transform:none}select{word-wrap:normal}[type=button],[type=reset],[type=submit],button{-webkit-appearance:button}[type=button]:not(:disabled),[type=reset]:not(:disabled),[type=submit]:not(:disabled),button:not(:disabled){cursor:pointer}[type=button]::-moz-focus-inner,[type=reset]::-moz-focus-inner,[type=submit]::-moz-focus-inner,button::-moz-focus-inner{padding:0;border-style:none}input[type=checkbox],input[type=radio]{box-sizing:border-box;padding:0}input[type=date],input[type=datetime-local],input[type=month],input[type=time]{-webkit-appearance:listbox}textarea{overflow:auto;resize:vertical}fieldset{min-width:0;padding:0;margin:0;border:0}legend{display:block;width:100%;max-width:100%;padding:0;margin-bottom:.5rem;font-size:1.5rem;line-height:inherit;color:inherit;white-space:normal}progress{vertical-align:baseline}[type=number]::-webkit-inner-spin-button,[type=number]::-webkit-outer-spin-button{height:auto}[type=search]{outline-offset:-2px;-webkit-appearance:none}[type=search]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{font:inherit;-webkit-appearance:button}output{display:inline-block}summary{display:list-item;cursor:pointer}template{display:none}[hidden]{display:none!important}
+/*# sourceMappingURL=bootstrap-reboot.min.css.map */

samples/multi-yaml/fe/frontend/wwwroot/lib/jquery-validation-unobtrusive/LICENSE.txt

@@ -0,0 +1,12 @@
+Copyright (c) .NET Foundation. All rights reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License"); you may not use
+these files except in compliance with the License. You may obtain a copy of the
+License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software distributed
+under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+CONDITIONS OF ANY KIND, either express or implied. See the License for the
+specific language governing permissions and limitations under the License.

samples/multi-yaml/fe/frontend/wwwroot/lib/jquery-validation-unobtrusive/jquery.validate.unobtrusive.js

@@ -0,0 +1,432 @@
+// Unobtrusive validation support library for jQuery and jQuery Validate
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+// @version v3.2.11
+
+/*jslint white: true, browser: true, onevar: true, undef: true, nomen: true, eqeqeq: true, plusplus: true, bitwise: true, regexp: true, newcap: true, immed: true, strict: false */
+/*global document: false, jQuery: false */
+
+(function (factory) {
+    if (typeof define === 'function' && define.amd) {
+        // AMD. Register as an anonymous module.
+        define("jquery.validate.unobtrusive", ['jquery-validation'], factory);
+    } else if (typeof module === 'object' && module.exports) {
+        // CommonJS-like environments that support module.exports     
+        module.exports = factory(require('jquery-validation'));
+    } else {
+        // Browser global
+        jQuery.validator.unobtrusive = factory(jQuery);
+    }
+}(function ($) {
+    var $jQval = $.validator,
+        adapters,
+        data_validation = "unobtrusiveValidation";
+
+    function setValidationValues(options, ruleName, value) {
+        options.rules[ruleName] = value;
+        if (options.message) {
+            options.messages[ruleName] = options.message;
+        }
+    }
+
+    function splitAndTrim(value) {
+        return value.replace(/^\s+|\s+$/g, "").split(/\s*,\s*/g);
+    }
+
+    function escapeAttributeValue(value) {
+        // As mentioned on http://api.jquery.com/category/selectors/
+        return value.replace(/([!"#$%&'()*+,./:;<=>?@\[\\\]^`{|}~])/g, "\\$1");
+    }
+
+    function getModelPrefix(fieldName) {
+        return fieldName.substr(0, fieldName.lastIndexOf(".") + 1);
+    }
+
+    function appendModelPrefix(value, prefix) {
+        if (value.indexOf("*.") === 0) {
+            value = value.replace("*.", prefix);
+        }
+        return value;
+    }
+
+    function onError(error, inputElement) {  // 'this' is the form element
+        var container = $(this).find("[data-valmsg-for='" + escapeAttributeValue(inputElement[0].name) + "']"),
+            replaceAttrValue = container.attr("data-valmsg-replace"),
+            replace = replaceAttrValue ? $.parseJSON(replaceAttrValue) !== false : null;
+
+        container.removeClass("field-validation-valid").addClass("field-validation-error");
+        error.data("unobtrusiveContainer", container);
+
+        if (replace) {
+            container.empty();
+            error.removeClass("input-validation-error").appendTo(container);
+        }
+        else {
+            error.hide();
+        }
+    }
+
+    function onErrors(event, validator) {  // 'this' is the form element
+        var container = $(this).find("[data-valmsg-summary=true]"),
+            list = container.find("ul");
+
+        if (list && list.length && validator.errorList.length) {
+            list.empty();
+            container.addClass("validation-summary-errors").removeClass("validation-summary-valid");
+
+            $.each(validator.errorList, function () {
+                $("<li />").html(this.message).appendTo(list);
+            });
+        }
+    }
+
+    function onSuccess(error) {  // 'this' is the form element
+        var container = error.data("unobtrusiveContainer");
+
+        if (container) {
+            var replaceAttrValue = container.attr("data-valmsg-replace"),
+                replace = replaceAttrValue ? $.parseJSON(replaceAttrValue) : null;
+
+            container.addClass("field-validation-valid").removeClass("field-validation-error");
+            error.removeData("unobtrusiveContainer");
+
+            if (replace) {
+                container.empty();
+            }
+        }
+    }
+
+    function onReset(event) {  // 'this' is the form element
+        var $form = $(this),
+            key = '__jquery_unobtrusive_validation_form_reset';
+        if ($form.data(key)) {
+            return;
+        }
+        // Set a flag that indicates we're currently resetting the form.
+        $form.data(key, true);
+        try {
+            $form.data("validator").resetForm();
+        } finally {
+            $form.removeData(key);
+        }
+
+        $form.find(".validation-summary-errors")
+            .addClass("validation-summary-valid")
+            .removeClass("validation-summary-errors");
+        $form.find(".field-validation-error")
+            .addClass("field-validation-valid")
+            .removeClass("field-validation-error")
+            .removeData("unobtrusiveContainer")
+            .find(">*")  // If we were using valmsg-replace, get the underlying error
+            .removeData("unobtrusiveContainer");
+    }
+
+    function validationInfo(form) {
+        var $form = $(form),
+            result = $form.data(data_validation),
+            onResetProxy = $.proxy(onReset, form),
+            defaultOptions = $jQval.unobtrusive.options || {},
+            execInContext = function (name, args) {
+                var func = defaultOptions[name];
+                func && $.isFunction(func) && func.apply(form, args);
+            };
+
+        if (!result) {
+            result = {
+                options: {  // options structure passed to jQuery Validate's validate() method
+                    errorClass: defaultOptions.errorClass || "input-validation-error",
+                    errorElement: defaultOptions.errorElement || "span",
+                    errorPlacement: function () {
+                        onError.apply(form, arguments);
+                        execInContext("errorPlacement", arguments);
+                    },
+                    invalidHandler: function () {
+                        onErrors.apply(form, arguments);
+                        execInContext("invalidHandler", arguments);
+                    },
+                    messages: {},
+                    rules: {},
+                    success: function () {
+                        onSuccess.apply(form, arguments);
+                        execInContext("success", arguments);
+                    }
+                },
+                attachValidation: function () {
+                    $form
+                        .off("reset." + data_validation, onResetProxy)
+                        .on("reset." + data_validation, onResetProxy)
+                        .validate(this.options);
+                },
+                validate: function () {  // a validation function that is called by unobtrusive Ajax
+                    $form.validate();
+                    return $form.valid();
+                }
+            };
+            $form.data(data_validation, result);
+        }
+
+        return result;
+    }
+
+    $jQval.unobtrusive = {
+        adapters: [],
+
+        parseElement: function (element, skipAttach) {
+            /// <summary>
+            /// Parses a single HTML element for unobtrusive validation attributes.
+            /// </summary>
+            /// <param name="element" domElement="true">The HTML element to be parsed.</param>
+            /// <param name="skipAttach" type="Boolean">[Optional] true to skip attaching the
+            /// validation to the form. If parsing just this single element, you should specify true.
+            /// If parsing several elements, you should specify false, and manually attach the validation
+            /// to the form when you are finished. The default is false.</param>
+            var $element = $(element),
+                form = $element.parents("form")[0],
+                valInfo, rules, messages;
+
+            if (!form) {  // Cannot do client-side validation without a form
+                return;
+            }
+
+            valInfo = validationInfo(form);
+            valInfo.options.rules[element.name] = rules = {};
+            valInfo.options.messages[element.name] = messages = {};
+
+            $.each(this.adapters, function () {
+                var prefix = "data-val-" + this.name,
+                    message = $element.attr(prefix),
+                    paramValues = {};
+
+                if (message !== undefined) {  // Compare against undefined, because an empty message is legal (and falsy)
+                    prefix += "-";
+
+                    $.each(this.params, function () {
+                        paramValues[this] = $element.attr(prefix + this);
+                    });
+
+                    this.adapt({
+                        element: element,
+                        form: form,
+                        message: message,
+                        params: paramValues,
+                        rules: rules,
+                        messages: messages
+                    });
+                }
+            });
+
+            $.extend(rules, { "__dummy__": true });
+
+            if (!skipAttach) {
+                valInfo.attachValidation();
+            }
+        },
+
+        parse: function (selector) {
+            /// <summary>
+            /// Parses all the HTML elements in the specified selector. It looks for input elements decorated
+            /// with the [data-val=true] attribute value and enables validation according to the data-val-*
+            /// attribute values.
+            /// </summary>
+            /// <param name="selector" type="String">Any valid jQuery selector.</param>
+
+            // $forms includes all forms in selector's DOM hierarchy (parent, children and self) that have at least one
+            // element with data-val=true
+            var $selector = $(selector),
+                $forms = $selector.parents()
+                    .addBack()
+                    .filter("form")
+                    .add($selector.find("form"))
+                    .has("[data-val=true]");
+
+            $selector.find("[data-val=true]").each(function () {
+                $jQval.unobtrusive.parseElement(this, true);
+            });
+
+            $forms.each(function () {
+                var info = validationInfo(this);
+                if (info) {
+                    info.attachValidation();
+                }
+            });
+        }
+    };
+
+    adapters = $jQval.unobtrusive.adapters;
+
+    adapters.add = function (adapterName, params, fn) {
+        /// <summary>Adds a new adapter to convert unobtrusive HTML into a jQuery Validate validation.</summary>
+        /// <param name="adapterName" type="String">The name of the adapter to be added. This matches the name used
+        /// in the data-val-nnnn HTML attribute (where nnnn is the adapter name).</param>
+        /// <param name="params" type="Array" optional="true">[Optional] An array of parameter names (strings) that will
+        /// be extracted from the data-val-nnnn-mmmm HTML attributes (where nnnn is the adapter name, and
+        /// mmmm is the parameter name).</param>
+        /// <param name="fn" type="Function">The function to call, which adapts the values from the HTML
+        /// attributes into jQuery Validate rules and/or messages.</param>
+        /// <returns type="jQuery.validator.unobtrusive.adapters" />
+        if (!fn) {  // Called with no params, just a function
+            fn = params;
+            params = [];
+        }
+        this.push({ name: adapterName, params: params, adapt: fn });
+        return this;
+    };
+
+    adapters.addBool = function (adapterName, ruleName) {
+        /// <summary>Adds a new adapter to convert unobtrusive HTML into a jQuery Validate validation, where
+        /// the jQuery Validate validation rule has no parameter values.</summary>
+        /// <param name="adapterName" type="String">The name of the adapter to be added. This matches the name used
+        /// in the data-val-nnnn HTML attribute (where nnnn is the adapter name).</param>
+        /// <param name="ruleName" type="String" optional="true">[Optional] The name of the jQuery Validate rule. If not provided, the value
+        /// of adapterName will be used instead.</param>
+        /// <returns type="jQuery.validator.unobtrusive.adapters" />
+        return this.add(adapterName, function (options) {
+            setValidationValues(options, ruleName || adapterName, true);
+        });
+    };
+
+    adapters.addMinMax = function (adapterName, minRuleName, maxRuleName, minMaxRuleName, minAttribute, maxAttribute) {
+        /// <summary>Adds a new adapter to convert unobtrusive HTML into a jQuery Validate validation, where
+        /// the jQuery Validate validation has three potential rules (one for min-only, one for max-only, and
+        /// one for min-and-max). The HTML parameters are expected to be named -min and -max.</summary>
+        /// <param name="adapterName" type="String">The name of the adapter to be added. This matches the name used
+        /// in the data-val-nnnn HTML attribute (where nnnn is the adapter name).</param>
+        /// <param name="minRuleName" type="String">The name of the jQuery Validate rule to be used when you only
+        /// have a minimum value.</param>
+        /// <param name="maxRuleName" type="String">The name of the jQuery Validate rule to be used when you only
+        /// have a maximum value.</param>
+        /// <param name="minMaxRuleName" type="String">The name of the jQuery Validate rule to be used when you
+        /// have both a minimum and maximum value.</param>
+        /// <param name="minAttribute" type="String" optional="true">[Optional] The name of the HTML attribute that
+        /// contains the minimum value. The default is "min".</param>
+        /// <param name="maxAttribute" type="String" optional="true">[Optional] The name of the HTML attribute that
+        /// contains the maximum value. The default is "max".</param>
+        /// <returns type="jQuery.validator.unobtrusive.adapters" />
+        return this.add(adapterName, [minAttribute || "min", maxAttribute || "max"], function (options) {
+            var min = options.params.min,
+                max = options.params.max;
+
+            if (min && max) {
+                setValidationValues(options, minMaxRuleName, [min, max]);
+            }
+            else if (min) {
+                setValidationValues(options, minRuleName, min);
+            }
+            else if (max) {
+                setValidationValues(options, maxRuleName, max);
+            }
+        });
+    };
+
+    adapters.addSingleVal = function (adapterName, attribute, ruleName) {
+        /// <summary>Adds a new adapter to convert unobtrusive HTML into a jQuery Validate validation, where
+        /// the jQuery Validate validation rule has a single value.</summary>
+        /// <param name="adapterName" type="String">The name of the adapter to be added. This matches the name used
+        /// in the data-val-nnnn HTML attribute(where nnnn is the adapter name).</param>
+        /// <param name="attribute" type="String">[Optional] The name of the HTML attribute that contains the value.
+        /// The default is "val".</param>
+        /// <param name="ruleName" type="String" optional="true">[Optional] The name of the jQuery Validate rule. If not provided, the value
+        /// of adapterName will be used instead.</param>
+        /// <returns type="jQuery.validator.unobtrusive.adapters" />
+        return this.add(adapterName, [attribute || "val"], function (options) {
+            setValidationValues(options, ruleName || adapterName, options.params[attribute]);
+        });
+    };
+
+    $jQval.addMethod("__dummy__", function (value, element, params) {
+        return true;
+    });
+
+    $jQval.addMethod("regex", function (value, element, params) {
+        var match;
+        if (this.optional(element)) {
+            return true;
+        }
+
+        match = new RegExp(params).exec(value);
+        return (match && (match.index === 0) && (match[0].length === value.length));
+    });
+
+    $jQval.addMethod("nonalphamin", function (value, element, nonalphamin) {
+        var match;
+        if (nonalphamin) {
+            match = value.match(/\W/g);
+            match = match && match.length >= nonalphamin;
+        }
+        return match;
+    });
+
+    if ($jQval.methods.extension) {
+        adapters.addSingleVal("accept", "mimtype");
+        adapters.addSingleVal("extension", "extension");
+    } else {
+        // for backward compatibility, when the 'extension' validation method does not exist, such as with versions
+        // of JQuery Validation plugin prior to 1.10, we should use the 'accept' method for
+        // validating the extension, and ignore mime-type validations as they are not supported.
+        adapters.addSingleVal("extension", "extension", "accept");
+    }
+
+    adapters.addSingleVal("regex", "pattern");
+    adapters.addBool("creditcard").addBool("date").addBool("digits").addBool("email").addBool("number").addBool("url");
+    adapters.addMinMax("length", "minlength", "maxlength", "rangelength").addMinMax("range", "min", "max", "range");
+    adapters.addMinMax("minlength", "minlength").addMinMax("maxlength", "minlength", "maxlength");
+    adapters.add("equalto", ["other"], function (options) {
+        var prefix = getModelPrefix(options.element.name),
+            other = options.params.other,
+            fullOtherName = appendModelPrefix(other, prefix),
+            element = $(options.form).find(":input").filter("[name='" + escapeAttributeValue(fullOtherName) + "']")[0];
+
+        setValidationValues(options, "equalTo", element);
+    });
+    adapters.add("required", function (options) {
+        // jQuery Validate equates "required" with "mandatory" for checkbox elements
+        if (options.element.tagName.toUpperCase() !== "INPUT" || options.element.type.toUpperCase() !== "CHECKBOX") {
+            setValidationValues(options, "required", true);
+        }
+    });
+    adapters.add("remote", ["url", "type", "additionalfields"], function (options) {
+        var value = {
+            url: options.params.url,
+            type: options.params.type || "GET",
+            data: {}
+        },
+            prefix = getModelPrefix(options.element.name);
+
+        $.each(splitAndTrim(options.params.additionalfields || options.element.name), function (i, fieldName) {
+            var paramName = appendModelPrefix(fieldName, prefix);
+            value.data[paramName] = function () {
+                var field = $(options.form).find(":input").filter("[name='" + escapeAttributeValue(paramName) + "']");
+                // For checkboxes and radio buttons, only pick up values from checked fields.
+                if (field.is(":checkbox")) {
+                    return field.filter(":checked").val() || field.filter(":hidden").val() || '';
+                }
+                else if (field.is(":radio")) {
+                    return field.filter(":checked").val() || '';
+                }
+                return field.val();
+            };
+        });
+
+        setValidationValues(options, "remote", value);
+    });
+    adapters.add("password", ["min", "nonalphamin", "regex"], function (options) {
+        if (options.params.min) {
+            setValidationValues(options, "minlength", options.params.min);
+        }
+        if (options.params.nonalphamin) {
+            setValidationValues(options, "nonalphamin", options.params.nonalphamin);
+        }
+        if (options.params.regex) {
+            setValidationValues(options, "regex", options.params.regex);
+        }
+    });
+    adapters.add("fileextensions", ["extensions"], function (options) {
+        setValidationValues(options, "extension", options.params.extensions);
+    });
+
+    $(function () {
+        $jQval.unobtrusive.parse(document);
+    });
+
+    return $jQval.unobtrusive;
+}));

samples/multi-yaml/fe/frontend/wwwroot/lib/jquery-validation/LICENSE.md

@@ -0,0 +1,22 @@
+The MIT License (MIT)
+=====================
+
+Copyright Jörn Zaefferer
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

samples/multi-yaml/fe/frontend/wwwroot/lib/jquery/LICENSE.txt

@@ -0,0 +1,36 @@
+Copyright JS Foundation and other contributors, https://js.foundation/
+
+This software consists of voluntary contributions made by many
+individuals. For exact contribution history, see the revision history
+available at https://github.com/jquery/jquery
+
+The following license applies to all parts of this software except as
+documented below:
+
+====
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+====
+
+All files located in the node_modules and external directories are
+externally maintained libraries used by this software which have their
+own licenses; we recommend you read them, as their terms may differ from
+the terms above.

samples/multi-yaml/fe/tye.yaml

@@ -0,0 +1,8 @@
+app: multi-tye # name of the bigger application
+name: frontend # name of this application
+services:
+- name: frontend
+  project: frontend/frontend.csproj
+  replicas: 2
+dependencies:
+- path: ../be/tye.yaml

samples/multi-yaml/tye.yaml

@@ -0,0 +1,6 @@
+# tye application configuration file
+# read all about it at https://github.com/dotnet/tye
+name: multi-tye
+dependencies:
+- path: be/tye.yaml
+- path: fe/tye.yaml

src/Microsoft.Tye.Core/ApplicationBuilder.cs

@@ -13,12 +13,15 @@ namespace Microsoft.Tye
         {
             Source = source;
             Name = name;
+            Application = name;
         }
 
         public FileInfo Source { get; set; }
 
         public string Name { get; set; }
 
+        public string? Application { get; set; }
+
         public ContainerRegistry? Registry { get; set; }
 
         public List<ServiceBuilder> Services { get; } = new List<ServiceBuilder>();

src/Microsoft.Tye.Core/ApplicationFactory.cs

@@ -21,208 +21,237 @@ namespace Microsoft.Tye
                 throw new ArgumentNullException(nameof(source));
             }
 
-            var config = ConfigFactory.FromFile(source);
+            var queue = new Queue<ConfigApplication>();
-            ValidateConfigApplication(config);
+            var visited = new HashSet<string>();
+            var rootConfig = ConfigFactory.FromFile(source);
+            ValidateConfigApplication(rootConfig);
+            var root = new ApplicationBuilder(source, rootConfig.Name ?? source.Directory.Name.ToLowerInvariant());
+            root.Application ??= rootConfig.Application;
 
-            var builder = new ApplicationBuilder(source, config.Name ?? source.Directory.Name.ToLowerInvariant());
+            queue.Enqueue(rootConfig);
-            if (!string.IsNullOrEmpty(config.Registry))
-            {
-                builder.Registry = new ContainerRegistry(config.Registry);
-            }
 
-            foreach (var configService in config.Services)
+            while (queue.Count > 0)
             {
-                ServiceBuilder service;
+                var config = queue.Dequeue();
-                if (!string.IsNullOrEmpty(configService.Project))
-                {
-                    var expandedProject = Environment.ExpandEnvironmentVariables(configService.Project);
-                    var projectFile = new FileInfo(Path.Combine(builder.Source.DirectoryName, expandedProject));
-                    var project = new ProjectServiceBuilder(configService.Name, projectFile);
-                    service = project;
-
-                    project.Build = configService.Build ?? true;
-                    project.Args = configService.Args;
-                    project.Replicas = configService.Replicas ?? 1;
 
-                    await ProjectReader.ReadProjectDetailsAsync(output, project);
+                if (visited.Contains(config.Source.FullName))
-
-                    // We don't apply more container defaults here because we might need
-                    // to promptly for the registry name.
-                    project.ContainerInfo = new ContainerInfo()
-                    {
-                        UseMultiphaseDockerfile = false,
-                    };
-                }
-                else if (!string.IsNullOrEmpty(configService.Image))
                 {
-                    var container = new ContainerServiceBuilder(configService.Name, configService.Image)
+                    continue;
-                    {
-                        Args = configService.Args,
-                        Replicas = configService.Replicas ?? 1
-                    };
-                    service = container;
                 }
-                else if (!string.IsNullOrEmpty(configService.Executable))
-                {
-                    var expandedExecutable = Environment.ExpandEnvironmentVariables(configService.Executable);
-                    var workingDirectory = "";
 
-                    // Special handling of .dlls as executables (it will be executed as dotnet {dll})
+                visited.Add(config.Source.FullName);
-                    if (Path.GetExtension(expandedExecutable) == ".dll")
-                    {
-                        expandedExecutable = Path.GetFullPath(Path.Combine(builder.Source.Directory.FullName, expandedExecutable));
-                        workingDirectory = Path.GetDirectoryName(expandedExecutable)!;
-                    }
 
-                    var executable = new ExecutableServiceBuilder(configService.Name, expandedExecutable)
+                if (config == rootConfig && !string.IsNullOrEmpty(config.Registry))
-                    {
-                        Args = configService.Args,
-                        WorkingDirectory = configService.WorkingDirectory != null ?
-                        Path.GetFullPath(Path.Combine(builder.Source.Directory.FullName, Environment.ExpandEnvironmentVariables(configService.WorkingDirectory))) :
-                        workingDirectory,
-                        Replicas = configService.Replicas ?? 1
-                    };
-                    service = executable;
-                }
-                else if (configService.External)
                 {
-                    var external = new ExternalServiceBuilder(configService.Name);
+                    root.Registry = new ContainerRegistry(config.Registry);
-                    service = external;
-                }
-                else
-                {
-                    throw new CommandException("Unable to determine service type.");
                 }
 
-                builder.Services.Add(service);
+                foreach (var configService in config.Services)
-
-                // If there are no bindings and we're in ASP.NET Core project then add an HTTP and HTTPS binding
-                if (configService.Bindings.Count == 0 &&
-                    service is ProjectServiceBuilder project2 &&
-                    project2.IsAspNet)
                 {
-                    // HTTP is the default binding
+                    ServiceBuilder service;
-                    service.Bindings.Add(new BindingBuilder()
+                    if (!string.IsNullOrEmpty(configService.Project))
                     {
-                        AutoAssignPort = true,
+                        var expandedProject = Environment.ExpandEnvironmentVariables(configService.Project);
-                        Protocol = "http"
+                        var projectFile = new FileInfo(Path.Combine(config.Source.DirectoryName, expandedProject));
-                    });
 
-                    service.Bindings.Add(new BindingBuilder()
+                        var project = new ProjectServiceBuilder(configService.Name, projectFile);
-                    {
+                        service = project;
-                        Name = "https",
-                        AutoAssignPort = true,
-                        Protocol = "https"
-                    });
-                }
-                else
-                {
-                    foreach (var configBinding in configService.Bindings)
-                    {
-                        var binding = new BindingBuilder()
-                        {
-                            Name = configBinding.Name,
-                            AutoAssignPort = configBinding.AutoAssignPort,
-                            ConnectionString = configBinding.ConnectionString,
-                            Host = configBinding.Host,
-                            ContainerPort = configBinding.ContainerPort,
-                            Port = configBinding.Port,
-                            Protocol = configBinding.Protocol,
-                        };
 
-                        // Assume HTTP for projects only (containers may be different)
+                        project.Build = configService.Build ?? true;
-                        if (binding.ConnectionString == null && configService.Project != null)
+                        project.Args = configService.Args;
-                        {
+                        project.Replicas = configService.Replicas ?? 1;
-                            binding.Protocol ??= "http";
-                        }
 
-                        service.Bindings.Add(binding);
+                        await ProjectReader.ReadProjectDetailsAsync(output, project);
-                    }
-                }
 
-                foreach (var configEnvVar in configService.Configuration)
+                        // We don't apply more container defaults here because we might need
-                {
+                        // to promptly for the registry name.
-                    var envVar = new EnvironmentVariable(configEnvVar.Name, configEnvVar.Value);
+                        project.ContainerInfo = new ContainerInfo()
-                    if (service is ProjectServiceBuilder project)
+                        {
-                    {
+                            UseMultiphaseDockerfile = false,
-                        project.EnvironmentVariables.Add(envVar);
+                        };
                     }
-                    else if (service is ContainerServiceBuilder container)
+                    else if (!string.IsNullOrEmpty(configService.Image))
                     {
-                        container.EnvironmentVariables.Add(envVar);
+                        var container = new ContainerServiceBuilder(configService.Name, configService.Image)
+                        {
+                            Args = configService.Args,
+                            Replicas = configService.Replicas ?? 1
+                        };
+                        service = container;
                     }
-                    else if (service is ExecutableServiceBuilder executable)
+                    else if (!string.IsNullOrEmpty(configService.Executable))
                     {
-                        executable.EnvironmentVariables.Add(envVar);
+                        var expandedExecutable = Environment.ExpandEnvironmentVariables(configService.Executable);
+                        var workingDirectory = "";
+
+                        // Special handling of .dlls as executables (it will be executed as dotnet {dll})
+                        if (Path.GetExtension(expandedExecutable) == ".dll")
+                        {
+                            expandedExecutable = Path.GetFullPath(Path.Combine(config.Source.Directory.FullName, expandedExecutable));
+                            workingDirectory = Path.GetDirectoryName(expandedExecutable)!;
+                        }
+
+                        var executable = new ExecutableServiceBuilder(configService.Name, expandedExecutable)
+                        {
+                            Args = configService.Args,
+                            WorkingDirectory = configService.WorkingDirectory != null ?
+                            Path.GetFullPath(Path.Combine(config.Source.Directory.FullName, Environment.ExpandEnvironmentVariables(configService.WorkingDirectory))) :
+                            workingDirectory,
+                            Replicas = configService.Replicas ?? 1
+                        };
+                        service = executable;
                     }
-                    else if (service is ExternalServiceBuilder)
+                    else if (configService.External)
                     {
-                        throw new CommandException("External services do not support environment variables.");
+                        var external = new ExternalServiceBuilder(configService.Name);
+                        service = external;
                     }
                     else
                     {
                         throw new CommandException("Unable to determine service type.");
                     }
-                }
 
-                foreach (var configVolume in configService.Volumes)
+                    // There's no hierarchy, just add it to the list of services.
-                {
+                    root.Services.Add(service);
-                    var volume = new VolumeBuilder(configVolume.Source, configVolume.Target);
+
-                    if (service is ProjectServiceBuilder project)
+                    // If there are no bindings and we're in ASP.NET Core project then add an HTTP and HTTPS binding
-                    {
+                    if (configService.Bindings.Count == 0 &&
-                        project.Volumes.Add(volume);
+                        service is ProjectServiceBuilder project2 &&
-                    }
+                        project2.IsAspNet)
-                    else if (service is ContainerServiceBuilder container)
                     {
-                        container.Volumes.Add(volume);
+                        // HTTP is the default binding
+                        service.Bindings.Add(new BindingBuilder()
+                        {
+                            AutoAssignPort = true,
+                            Protocol = "http"
+                        });
+
+                        service.Bindings.Add(new BindingBuilder()
+                        {
+                            Name = "https",
+                            AutoAssignPort = true,
+                            Protocol = "https"
+                        });
                     }
-                    else if (service is ExecutableServiceBuilder executable)
+                    else
                     {
-                        throw new CommandException("Executable services do not support volumes.");
+                        foreach (var configBinding in configService.Bindings)
+                        {
+                            var binding = new BindingBuilder()
+                            {
+                                Name = configBinding.Name,
+                                AutoAssignPort = configBinding.AutoAssignPort,
+                                ConnectionString = configBinding.ConnectionString,
+                                Host = configBinding.Host,
+                                ContainerPort = configBinding.ContainerPort,
+                                Port = configBinding.Port,
+                                Protocol = configBinding.Protocol,
+                            };
+
+                            // Assume HTTP for projects only (containers may be different)
+                            if (binding.ConnectionString == null && configService.Project != null)
+                            {
+                                binding.Protocol ??= "http";
+                            }
+
+                            service.Bindings.Add(binding);
+                        }
                     }
-                    else if (service is ExternalServiceBuilder)
+
+                    foreach (var configEnvVar in configService.Configuration)
                     {
-                        throw new CommandException("External services do not support volumes.");
+                        var envVar = new EnvironmentVariable(configEnvVar.Name, configEnvVar.Value);
+                        if (service is ProjectServiceBuilder project)
+                        {
+                            project.EnvironmentVariables.Add(envVar);
+                        }
+                        else if (service is ContainerServiceBuilder container)
+                        {
+                            container.EnvironmentVariables.Add(envVar);
+                        }
+                        else if (service is ExecutableServiceBuilder executable)
+                        {
+                            executable.EnvironmentVariables.Add(envVar);
+                        }
+                        else if (service is ExternalServiceBuilder)
+                        {
+                            throw new CommandException("External services do not support environment variables.");
+                        }
+                        else
+                        {
+                            throw new CommandException("Unable to determine service type.");
+                        }
                     }
-                    else
+
+                    foreach (var configVolume in configService.Volumes)
                     {
-                        throw new CommandException("Unable to determine service type.");
+                        var volume = new VolumeBuilder(configVolume.Source, configVolume.Target);
+                        if (service is ProjectServiceBuilder project)
+                        {
+                            project.Volumes.Add(volume);
+                        }
+                        else if (service is ContainerServiceBuilder container)
+                        {
+                            container.Volumes.Add(volume);
+                        }
+                        else if (service is ExecutableServiceBuilder executable)
+                        {
+                            throw new CommandException("Executable services do not support volumes.");
+                        }
+                        else if (service is ExternalServiceBuilder)
+                        {
+                            throw new CommandException("External services do not support volumes.");
+                        }
+                        else
+                        {
+                            throw new CommandException("Unable to determine service type.");
+                        }
                     }
                 }
-            }
 
-            foreach (var configIngress in config.Ingress)
+                foreach (var configIngress in config.Ingress)
-            {
+                {
-                var ingress = new IngressBuilder(configIngress.Name);
+                    var ingress = new IngressBuilder(configIngress.Name);
-                ingress.Replicas = configIngress.Replicas ?? 1;
+                    ingress.Replicas = configIngress.Replicas ?? 1;
 
-                builder.Ingress.Add(ingress);
+                    root.Ingress.Add(ingress);
 
-                foreach (var configBinding in configIngress.Bindings)
+                    foreach (var configBinding in configIngress.Bindings)
-                {
-                    var binding = new IngressBindingBuilder()
                     {
-                        AutoAssignPort = configBinding.AutoAssignPort,
+                        var binding = new IngressBindingBuilder()
-                        Name = configBinding.Name,
+                        {
-                        Port = configBinding.Port,
+                            AutoAssignPort = configBinding.AutoAssignPort,
-                        Protocol = configBinding.Protocol ?? "http",
+                            Name = configBinding.Name,
-                    };
+                            Port = configBinding.Port,
-                    ingress.Bindings.Add(binding);
+                            Protocol = configBinding.Protocol ?? "http",
+                        };
+                        ingress.Bindings.Add(binding);
+                    }
+
+                    foreach (var configRule in configIngress.Rules)
+                    {
+                        var rule = new IngressRuleBuilder()
+                        {
+                            Host = configRule.Host,
+                            Path = configRule.Path,
+                            Service = configRule.Service,
+                        };
+                        ingress.Rules.Add(rule);
+                    }
                 }
 
-                foreach (var configRule in configIngress.Rules)
+                foreach (var configDependency in config.Dependencies)
                 {
-                    var rule = new IngressRuleBuilder()
+                    // TODO: Validate the extension is yaml
-                    {
+                    var expandedPath = Environment.ExpandEnvironmentVariables(configDependency.Path!);
-                        Host = configRule.Host,
+                    var dependencyFile = new FileInfo(Path.Combine(config.Source.DirectoryName, expandedPath));
-                        Path = configRule.Path,
+                    var dependencyConfig = ConfigFactory.FromFile(dependencyFile);
-                        Service = configRule.Service,
+                    ValidateConfigApplication(dependencyConfig);
-                    };
+                    queue.Enqueue(dependencyConfig);
-                    ingress.Rules.Add(rule);
                 }
             }
 
-            return builder;
+            return root;
         }
 
         private static void ValidateConfigApplication(ConfigApplication config)
@@ -292,6 +321,19 @@ namespace Microsoft.Tye
                         string.Join(Environment.NewLine, results.Select(r => r.ErrorMessage)));
                 }
             }
+
+            foreach (var dependency in config.Dependencies)
+            {
+                // We don't currently recurse into ingress rules or ingress bindings right now.
+                // There's nothing to validate there.
+                context = new ValidationContext(dependency);
+                if (!Validator.TryValidateObject(dependency, context, results, validateAllProperties: true))
+                {
+                    throw new CommandException(
+                        $"Dependency '{dependency.Path}' validation failed." + Environment.NewLine +
+                        string.Join(Environment.NewLine, results.Select(r => r.ErrorMessage)));
+                }
+            }
         }
     }
 }

src/Microsoft.Tye.Core/ConfigModel/ConfigApplication.cs

@@ -21,10 +21,15 @@ namespace Microsoft.Tye.ConfigModel
 
         public string? Name { get; set; }
 
+        [YamlMember(Alias = "app")]
+        public string? Application { get; set; }
+
         public string? Registry { get; set; }
 
         public List<ConfigService> Services { get; set; } = new List<ConfigService>();
 
         public List<ConfigIngress> Ingress { get; set; } = new List<ConfigIngress>();
+
+        public List<ConfigDependency> Dependencies { get; set; } = new List<ConfigDependency>();
     }
 }

src/Microsoft.Tye.Core/ConfigModel/ConfigDependency.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Text;
+
+namespace Microsoft.Tye.ConfigModel
+{
+    public class ConfigDependency
+    {
+        [Required]
+        public string? Path { get; set; }
+    }
+}