[Л/Р 3] Мутрисков Данила #182

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v.moiseev merged 2 commits from Hlop4ik4/distributed-computing:mutrsikov-ds-lab-3 into main 2024-01-08 18:00:53 +04:00
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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)

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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

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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;
}
}

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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>

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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"]

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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 }
};
}
}

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{
"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"
}
}
}
}

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{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
}
}

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

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<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>

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@ -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

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@ -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"]

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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; }
}

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@ -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"
}
}
}
}

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

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

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@ -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>

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@ -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