Merge pull request '[Л/Р 3] Мутрисков Данила' (#182) from Hlop4ik4/distributed-computing:mutrsikov-ds-lab-3 into main

Reviewed-on: http://student.git.athene.tech/v.moiseev/distributed-computing/pulls/182

tasks/mutriskov-ds/lab_3/.gitignore

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tasks/mutriskov-ds/lab_3/README.md

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+# Отчет по лабораторной работе №3
+
+Выполнил студент гр. ИСЭбд-41 Мутрисков Д.С.
+
+## REST API, Gateway и синхронный обмен между микросервисами
+
+## Создание микросервисов
+
+1. С помощью команды `dotnet new web -n worker-1` в терминале создал первый микросервис
+2. Добавил решение командой  `dotnet new sln`
+3. Связал решение и проект командой `dotnet sln worker-1.sln add worker-1.csproj`
+4. Повторил действие для второго микросервиса
+5. Добавил библиотеку Swagger и OpenAi в проекты и запустил с помощью команды `dotnet run`
+6. Заложил в приложения следующую логику : 
+
+    worker-1 - CRUD для сущности Skill
+
+    worker-2 - CRUD для сущности Profession
+
+    К одной Profession относится много Skill
+
+Скриншоты API обоих приложений:
+![](images/SkillApi.png) 
+![](images/ProfessionApi.png)
+
+## Реализация синхронного обмена
+
+Реализовал простое хранилище, которое при инициализации обращается вызывает сихронно данные из соседнего микросервиса.
+Далее эти данные используются при обработке запросов к API
+
+```cs
+public class Storage
+{
+    public static Profession[] Professions { get; set; }
+
+    public static List<Skill> Skills { get; set; }
+
+    static Storage()
+    {
+        var client = new HttpClient();
+        string Url = "http://worker-2:80/Professions/";
+        Professions = client.GetFromJsonAsync<Profession[]>(Url).Result;
+
+        Skills = new List<Skill>()
+        {
+            new Skill() { Id = Guid.NewGuid(), Name = "Knowledge of programming", Level = Levels.Expert, ProfessionId = Professions.FirstOrDefault(p => p.Name == "Software Developer").Id },
+            new Skill() { Id = Guid.NewGuid(), Name = "Stress resistance", Level = Levels.Expert, ProfessionId = Professions.FirstOrDefault(p => p.Name == "Software Developer").Id },
+            new Skill() { Id = Guid.NewGuid(), Name = "The ability to cook", Level = Levels.Middle, ProfessionId = Professions.FirstOrDefault(p => p.Name == "Cook").Id },
+            new Skill() { Id = Guid.NewGuid(), Name = "Knowledge of plumbing", Level = Levels.Middle, ProfessionId = Professions.FirstOrDefault(p => p.Name == "Plumber").Id }
+        };
+    }
+}
+```
+
+## Реализация gateway при помощи nginx
+
+Добавил nginx.conf:
+
+```conf
+server {
+    listen       8080;
+    listen  [::]:8080;
+    server_name  localhost;
+
+    location / {
+        root   /usr/share/nginx/html;
+        index  index.html index.htm;
+    }
+
+    location /worker-1/ {
+        proxy_pass       http://worker-1:80/;
+        proxy_set_header Host      $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_set_header X-Forwarded-Prefix /worker-1;
+    }
+
+    location /worker-2/ {
+        proxy_pass       http://worker-2:80/;
+        proxy_set_header Host      $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_set_header X-Forwarded-Prefix /worker-2;
+    }
+}
+
+```
+
+Результат, после выполнения команды `docker-compose up`:
+
+Docker:
+
+![](images/Docker.png)
+
+index.html на gateway-1:
+
+![](images/gateway.png)
+
+
+worker-2:
+
+![](images/professionResponse.png)
+
+worker-2:
+
+professionId - берется из другого приложения. Идентификаторы совпали -> все отработало корректно
+![](images/skillsResponse.png)

tasks/mutriskov-ds/lab_3/docker-compose.yml

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+version: "3.1"
+services:
+  worker-2:
+    build: ./worker-2
+  worker-1:
+    build: ./worker-1
+    depends_on:
+      - worker-2
+  gateway:
+    image: nginx:latest
+    ports:
+      - 8080:8080
+    volumes:
+      - ./static:/usr/share/nginx/html:ro
+      - ./nginx.conf:/etc/nginx/conf.d/default.conf:ro

tasks/mutriskov-ds/lab_3/nginx.conf

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+server {
+    listen       8080;
+    listen  [::]:8080;
+    server_name  localhost;
+
+    location / {
+        root   /usr/share/nginx/html;
+        index  index.html index.htm;
+    }
+
+    location /worker-1/ {
+        proxy_pass       http://worker-1:80/;
+        proxy_set_header Host      $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_set_header X-Forwarded-Prefix /worker-1;
+    }
+
+    location /worker-2/ {
+        proxy_pass       http://worker-2:80/;
+        proxy_set_header Host      $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_set_header X-Forwarded-Prefix /worker-2;
+    }
+}

tasks/mutriskov-ds/lab_3/static/index.html

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+<!DOCTYPE html>
+<html lang="ru">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Тестовое приложение для л/р 3</title>
+</head>
+<body>
+    <p>Мутрисков Д.С. ИСЭбд-41.</p>
+    <p><a href="/worker-1/Skills/">Отправить запрос к worker-1</a></p>
+    <p><a href="/worker-2/Professions/">Отправить запрос к worker-2</a></p>
+</html>

tasks/mutriskov-ds/lab_3/worker-1/Dockerfile

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+FROM mcr.microsoft.com/dotnet/sdk:7.0 AS build-env
+WORKDIR /app
+
+COPY . ./
+RUN dotnet restore
+RUN dotnet publish -c Release -o out
+
+FROM mcr.microsoft.com/dotnet/aspnet:7.0
+WORKDIR /app
+COPY --from=build-env /app/out .
+ENTRYPOINT ["dotnet", "worker-1.dll"]

tasks/mutriskov-ds/lab_3/worker-1/Program.cs

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+var builder = WebApplication.CreateBuilder(args);
+
+builder.Services.AddEndpointsApiExplorer();
+builder.Services.AddSwaggerGen();
+
+var app = builder.Build();
+
+if (app.Environment.IsDevelopment())
+{
+    app.UseSwagger();
+    app.UseSwaggerUI();
+}
+
+app.UseHttpsRedirection();
+
+app.MapGet("/Skills/", () =>
+{
+    return Results.Ok(Storage.Skills.ToArray());
+})
+    .WithName("List")
+    .WithOpenApi();
+
+app.MapGet("/Skills/{skillId}", (Guid skillId) =>
+{
+    var skill = Storage.Skills.FirstOrDefault(s => s.Id == skillId);
+
+    if (skill == null)
+    {
+        return Results.NotFound($"Íå íàéäåíà ïðîôåññèÿ ñ èäåíòèôèêàòîðîì {skillId}");
+    }
+
+    return Results.Json(new Skill()
+    {
+        Id = skill.Id,
+        Name = skill.Name,
+        Level = skill.Level,
+        ProfessionId = skill.ProfessionId
+    });
+})
+    .WithName("Get")
+    .WithOpenApi();
+
+app.MapPost("/Skills/", (SkillRequest request) =>
+{
+    if (Storage.Professions.FirstOrDefault(p => p.Id == request.ProfessionId) is null)
+    {
+        return Results.NotFound($"Íå íàéäåíà ïðîôåññèÿ ñ èäåíòèôèêàòîðîì {request.ProfessionId}");
+    }
+
+    var skillId = Guid.NewGuid();
+
+    Storage.Skills.Add(new Skill()
+    {
+        Id = skillId,
+        Name = request.Name,
+        Level = request.Level,
+        ProfessionId = request.ProfessionId
+    });
+
+    return Results.Ok(skillId);
+})
+    .WithName("Create")
+    .WithOpenApi();
+
+app.MapPatch("/Skills/{skillId}", (Guid skillId, SkillRequest request) =>
+{
+    var skill = Storage.Skills.FirstOrDefault(s => s.Id == skillId);
+    if (skill == null)
+    {
+        Results.NotFound($"Íå íàéäåíî óìåíèå ñ èäåíòèôèêàòîðîì {skillId}");
+    }
+
+    if (!string.IsNullOrEmpty(request.Name))
+    {
+        skill.Name = request.Name;
+    }
+
+    if (!string.IsNullOrEmpty(request.Name))
+    {
+        skill.Level = request.Level;
+    }
+
+    if (!string.IsNullOrEmpty(request.Name))
+    {
+        skill.ProfessionId = request.ProfessionId;
+    }
+
+    return Results.Ok(skill);
+})
+    .WithName("Update")
+    .WithOpenApi();
+
+app.MapDelete("/Skills/{skillId}", (Guid skillId) =>
+{
+    var skill = Storage.Skills.FirstOrDefault(s => s.Id == skillId);
+    if (skill == null)
+    {
+        Results.NotFound($"Íå íàéäåíî óìåíèå ñ èäåíòèôèêàòîðîì {skillId}");
+    }
+
+    Storage.Skills.Remove(skill);
+    return Results.Ok(skillId);
+})
+    .WithName("Delete")
+    .WithOpenApi();
+
+app.Run();
+
+
+public class Profession
+{
+    public Guid Id { get; set; }
+
+    public string Name { get; set; }
+}
+
+public class Skill
+{
+    public Guid Id { get; set; }
+
+    public string Name { get; set; }
+
+    public Levels Level { get; set; }
+
+    public Guid ProfessionId { get; set; }
+}
+
+public class SkillRequest
+{
+    public string Name { get; set; }
+
+    public Levels Level { get; set; }
+
+    public Guid ProfessionId { get; set; }
+}
+
+public enum Levels
+{
+    None = 0,
+    Basic = 1,
+    Middle = 2,
+    Expert = 3
+}
+
+public class Storage
+{
+    public static Profession[] Professions { get; set; }
+
+    public static List<Skill> Skills { get; set; }
+
+    static Storage()
+    {
+        var client = new HttpClient();
+        string Url = "http://worker-2:80/Professions/";
+        Professions = client.GetFromJsonAsync<Profession[]>(Url).Result;
+
+        Skills = new List<Skill>()
+        {
+            new Skill() { Id = Guid.NewGuid(), Name = "Knowledge of programming", Level = Levels.Expert, ProfessionId = Professions.FirstOrDefault(p => p.Name == "Software Developer").Id },
+            new Skill() { Id = Guid.NewGuid(), Name = "Stress resistance", Level = Levels.Expert, ProfessionId = Professions.FirstOrDefault(p => p.Name == "Software Developer").Id },
+            new Skill() { Id = Guid.NewGuid(), Name = "The ability to cook", Level = Levels.Middle, ProfessionId = Professions.FirstOrDefault(p => p.Name == "Cook").Id },
+            new Skill() { Id = Guid.NewGuid(), Name = "Knowledge of plumbing", Level = Levels.Middle, ProfessionId = Professions.FirstOrDefault(p => p.Name == "Plumber").Id }
+        };
+    }
+}

tasks/mutriskov-ds/lab_3/worker-1/Properties/launchSettings.json

@@ -0,0 +1,37 @@
+{
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:2117",
+      "sslPort": 44312
+    }
+  },
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "applicationUrl": "http://localhost:5035",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "applicationUrl": "https://localhost:7148;http://localhost:5035",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

tasks/mutriskov-ds/lab_3/worker-1/appsettings.Development.json

@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

tasks/mutriskov-ds/lab_3/worker-1/appsettings.json

@@ -0,0 +1,9 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}

tasks/mutriskov-ds/lab_3/worker-1/worker-1.csproj

@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net7.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <RootNamespace>worker_1</RootNamespace>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="7.0.14" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.5.0" />
+  </ItemGroup>
+
+</Project>

tasks/mutriskov-ds/lab_3/worker-1/worker-1.sln

@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31903.59
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "worker-1", "worker-1.csproj", "{D9A74609-009B-4FD3-A9BC-5DE37D241ABE}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{D9A74609-009B-4FD3-A9BC-5DE37D241ABE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{D9A74609-009B-4FD3-A9BC-5DE37D241ABE}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{D9A74609-009B-4FD3-A9BC-5DE37D241ABE}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{D9A74609-009B-4FD3-A9BC-5DE37D241ABE}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal

tasks/mutriskov-ds/lab_3/worker-2/Dockerfile

@@ -0,0 +1,11 @@
+FROM mcr.microsoft.com/dotnet/sdk:7.0 AS build-env
+WORKDIR /app
+
+COPY . ./
+RUN dotnet restore
+RUN dotnet publish -c Release -o out
+
+FROM mcr.microsoft.com/dotnet/aspnet:7.0
+WORKDIR /app
+COPY --from=build-env /app/out .
+ENTRYPOINT ["dotnet", "worker-2.dll"]

tasks/mutriskov-ds/lab_3/worker-2/Program.cs

@@ -0,0 +1,110 @@
+using Microsoft.AspNetCore.Mvc;
+
+List<Profession> professions = new()
+{
+    new Profession() { Id = Guid.NewGuid(), Name = "Software Developer" },
+    new Profession() { Id = Guid.NewGuid(), Name = "Plumber" },
+    new Profession() { Id = Guid.NewGuid(), Name = "Cook" }
+};
+
+var builder = WebApplication.CreateBuilder(args);
+
+builder.Services.AddEndpointsApiExplorer();
+builder.Services.AddSwaggerGen();
+
+var app = builder.Build();
+
+if (app.Environment.IsDevelopment())
+{
+    app.UseSwagger();
+    app.UseSwaggerUI();
+}
+
+app.UseHttpsRedirection();
+
+app.MapGet("/Professions/", () =>
+{
+    return Results.Ok(professions.ToArray());
+})
+    .WithName("List")
+    .WithOpenApi();
+
+app.MapGet("/Professions/{professionId}", (Guid professionId) =>
+{
+    var proffesion = professions.FirstOrDefault(p => p.Id == professionId);
+
+    if (proffesion is null)
+    {
+        return Results.NotFound($"Íå íàéäåíà ïðîôåññèÿ ñ èäåíòèôèêàòîðîì {professionId}");
+    }
+
+    return Results.Json(new Profession()
+    {
+        Id = proffesion.Id,
+        Name = proffesion.Name
+    });
+})
+    .WithName("Get")
+    .WithOpenApi();
+
+app.MapPost("/Professions/", (ProfessionRequest request) =>
+{
+    Guid proffesionId = Guid.NewGuid();
+    professions.Add(new Profession()
+    {
+        Id = proffesionId,
+        Name = request.Name
+    });
+})
+    .WithName("Create")
+    .WithOpenApi();
+
+app.MapPatch("/Professions/{professionId}", (Guid professionId, ProfessionRequest request) =>
+{
+    var profession = professions.FirstOrDefault(p => p.Id == professionId);
+
+    if (profession is null)
+    {
+        return Results.NotFound($"Íå íàéäåíà ïðîôåññèÿ ñ èäåíòèôèêàòîðîì {professionId}");
+    }
+
+    if (!string.IsNullOrEmpty(request.Name))
+    {
+        profession.Name = request.Name;
+    }
+
+    return Results.Ok(profession);
+})
+    .WithName("Update")
+    .WithOpenApi();
+
+app.MapDelete("/Professions/{professionId}", (Guid professionId) =>
+{
+    var profession = professions.FirstOrDefault(p => p.Id == professionId);
+
+    if (profession is null)
+    {
+        return Results.NotFound($"Íå íàéäåíà ïðîôåññèÿ ñ èäåíòèôèêàòîðîì {professionId}");
+    }
+
+    professions.Remove(profession);
+
+    return Results.Ok(professionId);
+})
+    .WithName("Delete")
+    .WithOpenApi();
+
+app.Run();
+
+
+public class Profession
+{
+    public Guid Id { get; set; }
+
+    public string Name { get; set; }
+}
+
+public class ProfessionRequest
+{
+    public string Name { get; set; }
+}

tasks/mutriskov-ds/lab_3/worker-2/Properties/launchSettings.json

@@ -0,0 +1,37 @@
+{
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:20053",
+      "sslPort": 44371
+    }
+  },
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "applicationUrl": "http://localhost:5074",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "applicationUrl": "https://localhost:7121;http://localhost:5074",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

tasks/mutriskov-ds/lab_3/worker-2/appsettings.Development.json

@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

tasks/mutriskov-ds/lab_3/worker-2/appsettings.json

@@ -0,0 +1,9 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}

tasks/mutriskov-ds/lab_3/worker-2/worker-2.csproj

@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net7.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <RootNamespace>worker_2</RootNamespace>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="7.0.14" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.5.0" />
+  </ItemGroup>
+
+</Project>

tasks/mutriskov-ds/lab_3/worker-2/worker-2.sln

@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31903.59
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "worker-2", "worker-2.csproj", "{6B6458D3-45F9-4FB7-8E89-EECCDE5B636A}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{6B6458D3-45F9-4FB7-8E89-EECCDE5B636A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{6B6458D3-45F9-4FB7-8E89-EECCDE5B636A}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{6B6458D3-45F9-4FB7-8E89-EECCDE5B636A}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{6B6458D3-45F9-4FB7-8E89-EECCDE5B636A}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal