Merge pull request '[Л/Р 3] Савицкий Александр' (#74) from Savitskiy_ISEbd-41/distributed-computing:savitskiy_av_lab3 into main

Reviewed-on: http://student.git.athene.tech/v.moiseev/distributed-computing/pulls/74
This commit is contained in:
Vladislav Moiseev 2023-12-17 23:00:30 +04:00
commit ed7d0467c3
33 changed files with 1257 additions and 0 deletions

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# Отчет по лабораторной работе №3
Выполнил студент гр. ИСЭбд-41 Савицкий А.В.
## 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 Aeroplan
worker-2 - CRUD для сущности Pilot
К одному Aeroplan относится много Pilot
Скриншоты API обоих приложений:
![](pic/1.png)
![](pic/2.png)
## Реализация синхронного обмена
Реализовал хранение данных в оперативной памяти с хранилещем спректированым по паттерну Singleton. Хранилище при инициализации сихронно вызывает данные из соседнего микросервиса.
Далее эти данные используются при обработке запросов к API
```cs
public class Storage
{
private static Random rand = new Random();
public AiroplaneDal[] Airoplanes { get; set; }
public List<PilotDal> Pilots { get; set; }
public static Storage Instance { get; set; }
private Storage() { }
public static async Task<Storage> GetInstance()
{
if(Instance is not null)
{
return Instance;
}
var client = new HttpClient();
string reqUrl = $"http://worker-1:8080/Aeroplanes/";
Instance = new Storage();
Instance.Airoplanes = await client.GetFromJsonAsync<AiroplaneDal[]>(reqUrl);
Instance.Pilots = new List<PilotDal>()
{
new PilotDal() { PilotId = Guid.NewGuid(), BirthDate = DateTime.Today.AddDays(-100), AeroplaneId = Instance.Airoplanes[rand.Next(Instance.Airoplanes.Length)].AeroplaneId, FullName = "Савицкий Александр Вячеславович", Experience = 10 },
new PilotDal() { PilotId = Guid.NewGuid(), BirthDate = DateTime.Today.AddDays(-150), AeroplaneId = Instance.Airoplanes[rand.Next(Instance.Airoplanes.Length)].AeroplaneId, FullName = "Гайдулян Максим Петрович", Experience = 15 }
};
return Instance;
}
}
```
## 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-1:8080/;
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-2:8080/;
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:
![](pic/3.png)
index.html на localhost:8080:
![](pic/4.png)
worker-1:
![](pic/5.png)
worker-2:
companyId - берется из другого приложения. Идентификаторы совпали -> все отработало корректно
![](pic/6.png)

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version: "3.1"
services:
worker-1:
build: ./worker-1
worker-2:
build: ./worker-2
depends_on:
- worker-1
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-1:8080/;
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-2:8080/;
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>Савицкий А.В. ИСЭбд-41.</p>
<p><a href="/worker-1/Aeroplanes/">Отправить запрос к worker-1</a></p>
<p><a href="/worker-2/Pilots/">Отправить запрос к worker-2</a></p>
</html>

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FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build-env
WORKDIR /app
COPY . ./
RUN dotnet restore
RUN dotnet publish -c Release -o out
FROM mcr.microsoft.com/dotnet/aspnet:8.0
WORKDIR /app
COPY --from=build-env /app/out .
ENTRYPOINT ["dotnet", "worker-1.dll"]

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namespace worker_1.Models.Aeroplane.Create
{
public class AeroplaneForm
{
public string Name { get; set; }
public DateTime ProductionDate { get; set; }
public int Weght { get; set; }
public int Lenght { get; set; }
}
}

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namespace worker_1.Models.Aeroplane.Get
{
public class AeroplaneResult
{
public Guid AeroplaneId { get; set; }
public string Name { get; set; }
public DateTime ProductionDate { get; set; }
public int Weght { get; set; }
public int Lenght { get; set; }
}
}

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namespace worker_1.Models.Aeroplane.GetList
{
public class AeroplaneResult
{
public Guid AeroplaneId { get; set; }
public string Name { get; set; }
public DateTime ProductionDate { get; set; }
public int Weght { get; set; }
public int Lenght { get; set; }
}
}

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namespace worker_1.Models.Aeroplane.Update
{
public class AeroplaneForm
{
public string Name { get; set; }
public DateTime ProductionDate { get; set; }
public int Weght { get; set; }
public int Lenght { get; set; }
}
}

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using Microsoft.AspNetCore.Mvc;
List<AeroplaneDal> aeroplanes = new()
{
new AeroplaneDal() { AeroplaneId = Guid.NewGuid(), Name = "Boeing 747", Weght = 41140, Lenght = 40, ProductionDate = new DateTime(2010, 4, 15)},
new AeroplaneDal() { AeroplaneId = Guid.NewGuid(), Name = "Ту-154", Weght = 55300, Lenght = 48, ProductionDate = new DateTime(2005, 3, 20)},
new AeroplaneDal() { AeroplaneId = Guid.NewGuid(), Name = "Ил-86", Weght = 117500, Lenght = 60, ProductionDate = new DateTime(2005, 9, 7)},
};
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("/Aeroplanes/", () =>
{
var result = aeroplanes.Select(r => new worker_1.Models.Aeroplane.GetList.AeroplaneResult()
{
AeroplaneId = r.AeroplaneId,
Name = r.Name,
Lenght = r.Lenght,
ProductionDate = r.ProductionDate,
Weght = r.Weght,
}).ToArray();
return Results.Ok(result);
})
.WithName("List")
.WithOpenApi();
app.MapGet("/Aeroplanes/{aeroplaneId}", (Guid aeroplaneId) =>
{
var aeroplane = aeroplanes.FirstOrDefault(r => r.AeroplaneId == aeroplaneId);
if (aeroplane is null)
{
return Results.NotFound($"Не найдена самолет {aeroplaneId}");
}
return Results.Json(new worker_1.Models.Aeroplane.Get.AeroplaneResult()
{
AeroplaneId = aeroplane.AeroplaneId,
Name = aeroplane.Name,
Lenght = aeroplane.Lenght,
ProductionDate = aeroplane.ProductionDate,
Weght = aeroplane.Weght,
});
})
.WithName("Get")
.WithOpenApi();
app.MapPost("/Aeroplanes/", ([FromBody] worker_1.Models.Aeroplane.Create.AeroplaneForm request) =>
{
Guid aeroplaneId = Guid.NewGuid();
aeroplanes.Add(new AeroplaneDal()
{
AeroplaneId = aeroplaneId,
Lenght = request.Lenght,
ProductionDate = request.ProductionDate,
Weght = request.Weght,
Name = request.Name,
});
return Results.Ok(aeroplaneId);
})
.WithName("Create")
.WithOpenApi();
app.MapPatch("/Aeroplanes/{aeroplaneId}", (Guid aeroplaneId, [FromBody] worker_1.Models.Aeroplane.Create.AeroplaneForm request) =>
{
var aeroplane = aeroplanes.FirstOrDefault(r => r.AeroplaneId == aeroplaneId);
if (aeroplane is null)
{
return Results.NotFound($"Не найден самолет {aeroplaneId}");
}
if (!string.IsNullOrEmpty(request.Name))
{
aeroplane.Name = request.Name;
}
aeroplane.ProductionDate = request.ProductionDate;
aeroplane.Lenght = request.Lenght;
aeroplane.Weght = request.Weght;
return Results.Ok(aeroplane);
})
.WithName("Update")
.WithOpenApi();
app.MapDelete("/Aeroplanes/{aeroplaneId}", (Guid aeroplaneId) =>
{
var aeroplane = aeroplanes.FirstOrDefault(r => r.AeroplaneId == aeroplaneId);
if (aeroplane is null)
{
return Results.NotFound($"Не найден самолет {aeroplaneId}");
}
aeroplanes.Remove(aeroplane);
return Results.Ok(aeroplaneId);
})
.WithName("Delete")
.WithOpenApi();
app.Run();
public class AeroplaneDal
{
public Guid AeroplaneId { get; set; }
public string Name { get; set; }
public DateTime ProductionDate { get; set; }
public int Weght { get; set; }
public int Lenght { get; set; }
}

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{
"$schema": "http://json.schemastore.org/launchsettings.json",
"iisSettings": {
"windowsAuthentication": false,
"anonymousAuthentication": true,
"iisExpress": {
"applicationUrl": "http://localhost:51956",
"sslPort": 44303
}
},
"profiles": {
"http": {
"commandName": "Project",
"dotnetRunMessages": true,
"launchBrowser": true,
"applicationUrl": "http://localhost:5197",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
},
"https": {
"commandName": "Project",
"dotnetRunMessages": true,
"launchBrowser": true,
"applicationUrl": "https://localhost:7027;http://localhost:5197",
"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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<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
<TargetFramework>net8.0</TargetFramework>
<Nullable>enable</Nullable>
<ImplicitUsings>enable</ImplicitUsings>
<RootNamespace>worker_1</RootNamespace>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="8.0.0" />
<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", "{90F6C7BD-78E2-47C8-A702-DD47E74D3865}"
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
{90F6C7BD-78E2-47C8-A702-DD47E74D3865}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{90F6C7BD-78E2-47C8-A702-DD47E74D3865}.Debug|Any CPU.Build.0 = Debug|Any CPU
{90F6C7BD-78E2-47C8-A702-DD47E74D3865}.Release|Any CPU.ActiveCfg = Release|Any CPU
{90F6C7BD-78E2-47C8-A702-DD47E74D3865}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
EndGlobal

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FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build-env
WORKDIR /app
COPY . ./
RUN dotnet restore
RUN dotnet publish -c Release -o out
FROM mcr.microsoft.com/dotnet/aspnet:8.0
WORKDIR /app
COPY --from=build-env /app/out .
ENTRYPOINT ["dotnet", "worker-2.dll"]

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namespace worker_2.Models.Pilots.Create
{
public class PilotForm
{
public string FullName { get; set; }
public Guid AeroplaneId { get; set; }
public DateTime? BirthDate { get; set; }
public int Experience { get; set; }
}
}

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namespace worker_2.Models.Pilots.Get
{
public class PilotResult
{
public Guid PilotId { get; set; }
public string FullName { get; set; }
public Guid AeroplaneId { get; set; }
public DateTime? BirthDate { get; set; }
public int Experience { get; set; }
}
}

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namespace worker_2.Models.Pilots.GetList
{
public class PilotResult
{
public Guid PilotId { get; set; }
public string FullName { get; set; }
public Guid AeroplaneId { get; set; }
public DateTime? BirthDate { get; set; }
public int Experience { get; set; }
}
}

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namespace worker_2.Models.Pilots.Update
{
public class PilotForm
{
public string FullName { get; set; }
public Guid AeroplaneId { get; set; }
public DateTime? BirthDate { get; set; }
public int Experience { get; set; }
}
}

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using Microsoft.AspNetCore.Mvc;
using System.Text;
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("/Pilots/", async () =>
{
var result = (await Storage.GetInstance()).Pilots.Select(r => new worker_2.Models.Pilots.GetList.PilotResult()
{
AeroplaneId = r.AeroplaneId,
FullName = r.FullName,
BirthDate = r.BirthDate,
Experience = r.Experience,
PilotId = r.PilotId,
}).ToArray();
return Results.Ok(result);
})
.WithName("List")
.WithOpenApi();
app.MapGet("/Pilots/{pilotId}", async (Guid pilotId) =>
{
var pilot = (await Storage.GetInstance()).Pilots.FirstOrDefault(r => r.PilotId == pilotId);
if (pilot is null)
{
return Results.NotFound($"Не найден пилот {pilotId}");
}
return Results.Json(new worker_2.Models.Pilots.Get.PilotResult()
{
AeroplaneId = pilot.AeroplaneId,
FullName = pilot.FullName,
BirthDate = pilot.BirthDate,
Experience = pilot.Experience,
PilotId = pilot.PilotId,
});
})
.WithName("Get")
.WithOpenApi();
app.MapPost("/Pilots/", async ([FromBody] worker_2.Models.Pilots.Create.PilotForm request) =>
{
if ((await Storage.GetInstance()).Airoplanes.FirstOrDefault(x => x.AeroplaneId == request.AeroplaneId) is null)
{
return Results.NotFound($"Не найден самолет {request.AeroplaneId}");
}
Guid pilotId = Guid.NewGuid();
(await Storage.GetInstance()).Pilots.Add(new PilotDal()
{
PilotId = pilotId,
BirthDate = request.BirthDate,
AeroplaneId = request.AeroplaneId,
FullName = request.FullName,
Experience = request.Experience,
});
return Results.Ok(pilotId);
})
.WithName("Create")
.WithOpenApi();
app.MapPatch("/Pilots/{pilotId}", async (Guid pilotId, [FromBody] worker_2.Models.Pilots.Create.PilotForm request) =>
{
var pilot = (await Storage.GetInstance()).Pilots.FirstOrDefault(r => r.PilotId == pilotId);
if (pilot is null)
{
return Results.NotFound($"Не найден пилот {pilotId}");
}
if((await Storage.GetInstance()).Airoplanes.FirstOrDefault(x => x.AeroplaneId == request.AeroplaneId) is null)
{
return Results.NotFound($"Не найдена самолет {request.AeroplaneId}");
}
if (!string.IsNullOrEmpty(request.FullName))
{
pilot.FullName = request.FullName;
}
pilot.AeroplaneId = request.AeroplaneId;
pilot.Experience = request.Experience;
pilot.BirthDate = request.BirthDate;
return Results.Ok(pilot);
})
.WithName("Update")
.WithOpenApi();
app.MapDelete("/Pilots/{pilotId}", async (Guid pilotId) =>
{
var pilot = (await Storage.GetInstance()).Pilots.FirstOrDefault(r => r.PilotId == pilotId);
if (pilot is null)
{
return Results.NotFound($"Не найден пилот {pilotId}");
}
(await Storage.GetInstance()).Pilots.Remove(pilot);
return Results.Ok(pilotId);
})
.WithName("Delete")
.WithOpenApi();
app.Run();
public class PilotDal
{
public Guid PilotId { get; set; }
public string FullName { get; set; }
public Guid AeroplaneId { get; set; }
public DateTime? BirthDate { get; set; }
public int Experience { get; set; }
}
public class AiroplaneDal
{
public Guid AeroplaneId { get; set; }
public string Name { get; set; }
public DateTime ProductionDate { get; set; }
public int Weght { get; set; }
public int Lenght { get; set; }
}
public class Storage
{
private static Random rand = new Random();
public AiroplaneDal[] Airoplanes { get; set; }
public List<PilotDal> Pilots { get; set; }
public static Storage Instance { get; set; }
private Storage() { }
public static async Task<Storage> GetInstance()
{
if(Instance is not null)
{
return Instance;
}
var client = new HttpClient();
string reqUrl = $"https://localhost:7027/Aeroplanes/";
Instance = new Storage();
Instance.Airoplanes = await client.GetFromJsonAsync<AiroplaneDal[]>(reqUrl);
Instance.Pilots = new List<PilotDal>()
{
new PilotDal() { PilotId = Guid.NewGuid(), BirthDate = DateTime.Today.AddDays(-100), AeroplaneId = Instance.Airoplanes[rand.Next(Instance.Airoplanes.Length)].AeroplaneId, FullName = "Савицкий Александр Вячеславович", Experience = 10 },
new PilotDal() { PilotId = Guid.NewGuid(), BirthDate = DateTime.Today.AddDays(-150), AeroplaneId = Instance.Airoplanes[rand.Next(Instance.Airoplanes.Length)].AeroplaneId, FullName = "Гайдулян Максим Петрович", Experience = 15 }
};
return Instance;
}
}

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{
"$schema": "http://json.schemastore.org/launchsettings.json",
"iisSettings": {
"windowsAuthentication": false,
"anonymousAuthentication": true,
"iisExpress": {
"applicationUrl": "http://localhost:36404",
"sslPort": 44384
}
},
"profiles": {
"http": {
"commandName": "Project",
"dotnetRunMessages": true,
"launchBrowser": true,
"applicationUrl": "http://localhost:5101",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
},
"https": {
"commandName": "Project",
"dotnetRunMessages": true,
"launchBrowser": true,
"applicationUrl": "https://localhost:7125;http://localhost:5101",
"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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{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
},
"AllowedHosts": "*"
}

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<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
<TargetFramework>net8.0</TargetFramework>
<Nullable>enable</Nullable>
<ImplicitUsings>enable</ImplicitUsings>
<RootNamespace>worker_2</RootNamespace>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="8.0.0" />
<PackageReference Include="Swashbuckle.AspNetCore" Version="6.5.0" />
</ItemGroup>
</Project>

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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", "{C9D63524-2C63-4E86-91B6-D86955CFA5F8}"
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
{C9D63524-2C63-4E86-91B6-D86955CFA5F8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{C9D63524-2C63-4E86-91B6-D86955CFA5F8}.Debug|Any CPU.Build.0 = Debug|Any CPU
{C9D63524-2C63-4E86-91B6-D86955CFA5F8}.Release|Any CPU.ActiveCfg = Release|Any CPU
{C9D63524-2C63-4E86-91B6-D86955CFA5F8}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
EndGlobal