Горшенин Дмитрий Лаб. 2 Группа 6511

Client.Wasm/Components/StudentCard.razor

@@ -4,10 +4,10 @@
     </CardHeader>
     <CardBody>
         <UnorderedList Unstyled>
-            <UnorderedListItem>Номер <Strong>№X "Название лабораторной"</Strong></UnorderedListItem>
-            <UnorderedListItem>Вариант <Strong>№Х "Название варианта"</Strong></UnorderedListItem>
-            <UnorderedListItem>Выполнена <Strong>Фамилией Именем 65ХХ</Strong> </UnorderedListItem>
-            <UnorderedListItem><Link To="https://puginarug.com/">Ссылка на форк</Link></UnorderedListItem>
+            <UnorderedListItem>Номер <Strong>№2 «Балансировка»</Strong></UnorderedListItem>
+            <UnorderedListItem>Вариант <Strong>№4 «Кредитная заявка»</Strong></UnorderedListItem>
+            <UnorderedListItem>Выполнено <Strong>Горшениным Дмитрием 6511</Strong> </UnorderedListItem>
+            <UnorderedListItem><Link To="https://github.com/dmgorshenin/cloud-development?tab=readme-ov-file">Ссылка на форк</Link></UnorderedListItem>
         </UnorderedList>
     </CardBody>
 </Card>

Client.Wasm/Properties/launchSettings.json

@@ -1,4 +1,4 @@
-{
+{
   "$schema": "http://json.schemastore.org/launchsettings.json",
   "iisSettings": {
     "windowsAuthentication": false,
@@ -12,26 +12,26 @@
     "http": {
       "commandName": "Project",
       "dotnetRunMessages": true,
-      "launchBrowser": true,
+      "launchBrowser": false,
       "inspectUri": "{wsProtocol}://{url.hostname}:{url.port}/_framework/debug/ws-proxy?browser={browserInspectUri}",
-      "applicationUrl": "http://localhost:5127",
+      "applicationUrl": "http://localhost:5128",
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"
       }
     },
     "https": {
       "commandName": "Project",
       "dotnetRunMessages": true,
-      "launchBrowser": true,
+      "launchBrowser": false,
       "inspectUri": "{wsProtocol}://{url.hostname}:{url.port}/_framework/debug/ws-proxy?browser={browserInspectUri}",
-      "applicationUrl": "https://localhost:7282;http://localhost:5127",
+      "applicationUrl": "https://localhost:7283;http://localhost:5128",
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"
       }
     },
     "IIS Express": {
       "commandName": "IISExpress",
-      "launchBrowser": true,
+      "launchBrowser": false,
       "inspectUri": "{wsProtocol}://{url.hostname}:{url.port}/_framework/debug/ws-proxy?browser={browserInspectUri}",
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"

Client.Wasm/wwwroot/appsettings.json

@@ -1,10 +1,10 @@
-{
+{
   "Logging": {
     "LogLevel": {
       "Default": "Information",
       "Microsoft.AspNetCore": "Warning"
     }
   },
   "AllowedHosts": "*",
-  "BaseAddress": "https://localhost:7170/land-plot"
+  "BaseAddress": "http://localhost:5200/credit-application"
 }

CloudDevelopment.sln

@@ -5,16 +5,84 @@ VisualStudioVersion = 17.14.36811.4
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Client.Wasm", "Client.Wasm\Client.Wasm.csproj", "{AE7EEA74-2FE0-136F-D797-854FD87E022A}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CreditApplication.AppHost", "CreditApplication.AppHost\CreditApplication.AppHost.csproj", "{8D7BA58C-B453-616F-C170-8D20E1B277D5}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CreditApplication.Generator", "CreditApplication.Generator\CreditApplication.Generator.csproj", "{795D187F-BDDB-12D5-574B-DB27A6FAA1B2}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CreditApplication.ServiceDefaults", "CreditApplication.ServiceDefaults\CreditApplication.ServiceDefaults.csproj", "{3E99472D-C53C-A52E-DCDC-C663DE0B4459}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CreditApplication.Gateway", "CreditApplication.Gateway\CreditApplication.Gateway.csproj", "{9455D133-4C88-48D6-AECD-6F84F7E17952}"
+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(ProjectConfigurationPlatforms) = postSolution
 		{AE7EEA74-2FE0-136F-D797-854FD87E022A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{AE7EEA74-2FE0-136F-D797-854FD87E022A}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{AE7EEA74-2FE0-136F-D797-854FD87E022A}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{AE7EEA74-2FE0-136F-D797-854FD87E022A}.Debug|x64.Build.0 = Debug|Any CPU
+		{AE7EEA74-2FE0-136F-D797-854FD87E022A}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{AE7EEA74-2FE0-136F-D797-854FD87E022A}.Debug|x86.Build.0 = Debug|Any CPU
 		{AE7EEA74-2FE0-136F-D797-854FD87E022A}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{AE7EEA74-2FE0-136F-D797-854FD87E022A}.Release|Any CPU.Build.0 = Release|Any CPU
+		{AE7EEA74-2FE0-136F-D797-854FD87E022A}.Release|x64.ActiveCfg = Release|Any CPU
+		{AE7EEA74-2FE0-136F-D797-854FD87E022A}.Release|x64.Build.0 = Release|Any CPU
+		{AE7EEA74-2FE0-136F-D797-854FD87E022A}.Release|x86.ActiveCfg = Release|Any CPU
+		{AE7EEA74-2FE0-136F-D797-854FD87E022A}.Release|x86.Build.0 = Release|Any CPU
+		{8D7BA58C-B453-616F-C170-8D20E1B277D5}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8D7BA58C-B453-616F-C170-8D20E1B277D5}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8D7BA58C-B453-616F-C170-8D20E1B277D5}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{8D7BA58C-B453-616F-C170-8D20E1B277D5}.Debug|x64.Build.0 = Debug|Any CPU
+		{8D7BA58C-B453-616F-C170-8D20E1B277D5}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{8D7BA58C-B453-616F-C170-8D20E1B277D5}.Debug|x86.Build.0 = Debug|Any CPU
+		{8D7BA58C-B453-616F-C170-8D20E1B277D5}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8D7BA58C-B453-616F-C170-8D20E1B277D5}.Release|Any CPU.Build.0 = Release|Any CPU
+		{8D7BA58C-B453-616F-C170-8D20E1B277D5}.Release|x64.ActiveCfg = Release|Any CPU
+		{8D7BA58C-B453-616F-C170-8D20E1B277D5}.Release|x64.Build.0 = Release|Any CPU
+		{8D7BA58C-B453-616F-C170-8D20E1B277D5}.Release|x86.ActiveCfg = Release|Any CPU
+		{8D7BA58C-B453-616F-C170-8D20E1B277D5}.Release|x86.Build.0 = Release|Any CPU
+		{795D187F-BDDB-12D5-574B-DB27A6FAA1B2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{795D187F-BDDB-12D5-574B-DB27A6FAA1B2}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{795D187F-BDDB-12D5-574B-DB27A6FAA1B2}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{795D187F-BDDB-12D5-574B-DB27A6FAA1B2}.Debug|x64.Build.0 = Debug|Any CPU
+		{795D187F-BDDB-12D5-574B-DB27A6FAA1B2}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{795D187F-BDDB-12D5-574B-DB27A6FAA1B2}.Debug|x86.Build.0 = Debug|Any CPU
+		{795D187F-BDDB-12D5-574B-DB27A6FAA1B2}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{795D187F-BDDB-12D5-574B-DB27A6FAA1B2}.Release|Any CPU.Build.0 = Release|Any CPU
+		{795D187F-BDDB-12D5-574B-DB27A6FAA1B2}.Release|x64.ActiveCfg = Release|Any CPU
+		{795D187F-BDDB-12D5-574B-DB27A6FAA1B2}.Release|x64.Build.0 = Release|Any CPU
+		{795D187F-BDDB-12D5-574B-DB27A6FAA1B2}.Release|x86.ActiveCfg = Release|Any CPU
+		{795D187F-BDDB-12D5-574B-DB27A6FAA1B2}.Release|x86.Build.0 = Release|Any CPU
+		{3E99472D-C53C-A52E-DCDC-C663DE0B4459}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{3E99472D-C53C-A52E-DCDC-C663DE0B4459}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{3E99472D-C53C-A52E-DCDC-C663DE0B4459}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{3E99472D-C53C-A52E-DCDC-C663DE0B4459}.Debug|x64.Build.0 = Debug|Any CPU
+		{3E99472D-C53C-A52E-DCDC-C663DE0B4459}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{3E99472D-C53C-A52E-DCDC-C663DE0B4459}.Debug|x86.Build.0 = Debug|Any CPU
+		{3E99472D-C53C-A52E-DCDC-C663DE0B4459}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{3E99472D-C53C-A52E-DCDC-C663DE0B4459}.Release|Any CPU.Build.0 = Release|Any CPU
+		{3E99472D-C53C-A52E-DCDC-C663DE0B4459}.Release|x64.ActiveCfg = Release|Any CPU
+		{3E99472D-C53C-A52E-DCDC-C663DE0B4459}.Release|x64.Build.0 = Release|Any CPU
+		{3E99472D-C53C-A52E-DCDC-C663DE0B4459}.Release|x86.ActiveCfg = Release|Any CPU
+		{3E99472D-C53C-A52E-DCDC-C663DE0B4459}.Release|x86.Build.0 = Release|Any CPU
+		{9455D133-4C88-48D6-AECD-6F84F7E17952}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{9455D133-4C88-48D6-AECD-6F84F7E17952}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{9455D133-4C88-48D6-AECD-6F84F7E17952}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{9455D133-4C88-48D6-AECD-6F84F7E17952}.Debug|x64.Build.0 = Debug|Any CPU
+		{9455D133-4C88-48D6-AECD-6F84F7E17952}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{9455D133-4C88-48D6-AECD-6F84F7E17952}.Debug|x86.Build.0 = Debug|Any CPU
+		{9455D133-4C88-48D6-AECD-6F84F7E17952}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{9455D133-4C88-48D6-AECD-6F84F7E17952}.Release|Any CPU.Build.0 = Release|Any CPU
+		{9455D133-4C88-48D6-AECD-6F84F7E17952}.Release|x64.ActiveCfg = Release|Any CPU
+		{9455D133-4C88-48D6-AECD-6F84F7E17952}.Release|x64.Build.0 = Release|Any CPU
+		{9455D133-4C88-48D6-AECD-6F84F7E17952}.Release|x86.ActiveCfg = Release|Any CPU
+		{9455D133-4C88-48D6-AECD-6F84F7E17952}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

CreditApplication.AppHost/CreditApplication.AppHost.csproj

@@ -0,0 +1,25 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+<Sdk Name="Aspire.AppHost.Sdk" Version="9.5.2" />
+
+<PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <IsAspireHost>true</IsAspireHost>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Aspire.Hosting" Version="9.5.2" />
+    <PackageReference Include="Aspire.Hosting.AppHost" Version="9.5.2" />
+    <PackageReference Include="Aspire.Hosting.Redis" Version="9.5.2" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\CreditApplication.Gateway\CreditApplication.Gateway.csproj" />
+    <ProjectReference Include="..\CreditApplication.Generator\CreditApplication.Generator.csproj" />
+    <ProjectReference Include="..\Client.Wasm\Client.Wasm.csproj" />
+  </ItemGroup>
+
+</Project>

CreditApplication.AppHost/Program.cs

@@ -0,0 +1,39 @@
+using Microsoft.Extensions.Hosting;
+
+var builder = DistributedApplication.CreateBuilder(args);
+
+var redis = builder.AddRedis("redis");
+
+if (builder.Environment.IsDevelopment())
+    redis.WithRedisCommander();
+
+var generator1 = builder.AddProject<Projects.CreditApplication_Generator>("generator-1")
+    .WithEndpoint("http", endpoint => endpoint.Port = 5101)
+    .WithReference(redis)
+    .WaitFor(redis);
+
+var generator2 = builder.AddProject<Projects.CreditApplication_Generator>("generator-2")
+    .WithEndpoint("http", endpoint => endpoint.Port = 5102)
+    .WithReference(redis)
+    .WaitFor(redis);
+
+var generator3 = builder.AddProject<Projects.CreditApplication_Generator>("generator-3")
+    .WithEndpoint("http", endpoint => endpoint.Port = 5103)
+    .WithReference(redis)
+    .WaitFor(redis);
+
+var gateway = builder.AddProject<Projects.CreditApplication_Gateway>("gateway")
+    .WithEndpoint("http", endpoint => endpoint.Port = 5200)
+    .WithReference(generator1)
+    .WithReference(generator2)
+    .WithReference(generator3)
+    .WithExternalHttpEndpoints()
+    .WaitFor(generator1)
+    .WaitFor(generator2)
+    .WaitFor(generator3);
+
+builder.AddProject<Projects.Client_Wasm>("client")
+    .WithReference(gateway)
+    .WaitFor(gateway);
+
+builder.Build().Run();

CreditApplication.AppHost/Properties/launchSettings.json

@@ -0,0 +1,29 @@
+{
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "profiles": {
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "applicationUrl": "https://localhost:17170;http://localhost:15170",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development",
+        "DOTNET_ENVIRONMENT": "Development",
+        "DOTNET_DASHBOARD_OTLP_ENDPOINT_URL": "https://localhost:21170",
+        "DOTNET_RESOURCE_SERVICE_ENDPOINT_URL": "https://localhost:22170"
+      }
+    },
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "applicationUrl": "http://localhost:15170",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development",
+        "DOTNET_ENVIRONMENT": "Development",
+        "DOTNET_DASHBOARD_OTLP_ENDPOINT_URL": "http://localhost:19170",
+        "DOTNET_RESOURCE_SERVICE_ENDPOINT_URL": "http://localhost:20170"
+      }
+    }
+  }
+}

CreditApplication.AppHost/appsettings.Development.json

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

CreditApplication.AppHost/appsettings.json

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

CreditApplication.Gateway/CreditApplication.Gateway.csproj

@@ -0,0 +1,17 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Ocelot" Version="23.3.3" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\CreditApplication.ServiceDefaults\CreditApplication.ServiceDefaults.csproj" />
+  </ItemGroup>
+
+</Project>

CreditApplication.Gateway/LoadBalancing/WeightedRandomLoadBalancer.cs

@@ -0,0 +1,64 @@
+using Ocelot.LoadBalancer.LoadBalancers;
+using Ocelot.Responses;
+using Ocelot.ServiceDiscovery.Providers;
+using Ocelot.Values;
+
+namespace CreditApplication.Gateway.LoadBalancing;
+
+public sealed class WeightedRandomLoadBalancer(
+    IServiceDiscoveryProvider serviceDiscovery,
+    IReadOnlyDictionary<string, double> weightsByName,
+    IReadOnlyDictionary<string, string> hostPortToName) : ILoadBalancer
+{
+    private readonly IServiceDiscoveryProvider _serviceDiscovery = serviceDiscovery;
+    private readonly IReadOnlyDictionary<string, double> _weightsByName = weightsByName;
+    private readonly IReadOnlyDictionary<string, string> _hostPortToName = hostPortToName;
+
+    public async Task<Response<ServiceHostAndPort>> Lease(HttpContext httpContext)
+    {
+        var services = await _serviceDiscovery.GetAsync();
+
+        if (services is null)
+            return new ErrorResponse<ServiceHostAndPort>(
+                new ServicesAreNullError("Service discovery returned null"));
+
+        if (services.Count == 0)
+            return new ErrorResponse<ServiceHostAndPort>(
+                new ServicesAreNullError("No downstream services are available"));
+
+        return new OkResponse<ServiceHostAndPort>(SelectByWeight(services).HostAndPort);
+    }
+
+    private Service SelectByWeight(List<Service> services)
+    {
+        var weighted = services
+            .Select(s =>
+            {
+                var hostPort = $"{s.HostAndPort.DownstreamHost}:{s.HostAndPort.DownstreamPort}";
+                var name = _hostPortToName.TryGetValue(hostPort, out var n) ? n : hostPort;
+                var weight = _weightsByName.TryGetValue(name, out var w) ? w : 1.0;
+                return (Service: s, Weight: weight);
+            })
+            .ToList();
+
+        var total = weighted.Sum(x => x.Weight);
+
+        if (total <= 0)
+            return services[Random.Shared.Next(services.Count)];
+
+        var roll = Random.Shared.NextDouble() * total;
+        var cumulative = 0.0;
+
+        foreach (var (service, weight) in weighted)
+        {
+            cumulative += weight;
+            if (roll <= cumulative)
+                return service;
+        }
+
+        return weighted[^1].Service;
+    }
+
+    // No connection tracking needed for stateless weighted random load balancing.
+    public void Release(ServiceHostAndPort hostAndPort) { }
+}