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*.swp

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# Отчет по лабораторной работе №3
Выполнил студент гр. ИСЭбд-41 Дунаев О.И.
## REST API, Gateway и синхронный обмен между микросервисами
## Создание микросервисов
1. С помощью команды `dotnet new web -n worker-2` в терминале создал первый микросервис.
2. Добавил решение командой `dotnet new sln`
3. Связал решение и проект командой `dotnet sln worker-2.sln add worker-2.csproj`
4. Повторил действие для второго микросервиса
5. Добавил библиотеку Swagger и OpenAi в проекты и запустил с помощью команды `dotnet run`
Скриншоты протестированных микросервисов:
![](pic/1.png)
![](pic/2.png)
![](pic/4.png)
## Реализация синхронного обмена
Реализовал код, который вызывает сихронно данные из соседнего микросервиса.
```cs
//worker-2
app.MapGet("/Locations/", async () =>
{
var httpClient = new HttpClient();
var secondWorkerResponse = await httpClient.GetStringAsync("http://worker-1:8080/");
return secondWorkerResponse.ToArray();
})
.WithName("GetBreeds")
.WithOpenApi();
## 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)
![](pic/5.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>Дунаев О.И. ИСЭбд-41.</p>
<p><a href="/worker-1/">Отправить запрос к worker-1</a></p>
<p><a href="/worker-2/">Отправить запрос к worker-2</a></p>
</body>
</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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List<Pets> pets = new()
{
new Pets() { Uuid= Guid.Parse("6a1b4a72-5669-41fe-8d5b-106dc86f58bd"), Animals = "Кот", Breed = "Бигль"},
new Pets() { Uuid= Guid.Parse("464bbdb8-39c0-4644-b9c0-3df1c484ea7e"), Animals = "Собака", Breed = "Мейн-Кун"},
new Pets() { Uuid= Guid.Parse("f8692bea-b7e6-4164-b564-a921f16c35c9"), Animals = "Хомяк", Breed = "Лемминг"},
};
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("/", () =>
{
return pets.Select(r => new PetEntityDto()
{
Uuid = r.Uuid,
Animals = r.Animals,
Breed = r.Breed,
});
})
.WithName("GetPets")
.WithOpenApi();
app.MapGet("/{uuid}", (Guid uuid) =>
{
var pet = pets.FirstOrDefault(r => r.Uuid == uuid);
if (pet == null)
return Results.NotFound();
return Results.Json(new PetEntityDto()
{
Uuid = pet.Uuid,
Animals = pet.Animals,
Breed = pet.Breed,
});
})
.WithName("GetPetByGUID")
.WithOpenApi();
app.MapPost("/{animals}/{breed}", (string Animals, string Breed) =>
{
Guid NewGuid = Guid.NewGuid();
pets.Add(new Pets() { Uuid = NewGuid, Animals = (string)Animals, Breed = (string)Breed});
var pet = pets.FirstOrDefault(r => r.Uuid == NewGuid);
if (pet == null)
return Results.NotFound();
return Results.Json(new PetEntityDto()
{
Uuid = pet.Uuid,
Animals = pet.Animals,
Breed = pet.Breed,
});
})
.WithName("PostPet")
.WithOpenApi();
app.MapPatch("/{uuid}/{animals}/{breed}", (Guid uuid, string ?animals, string ?breed) =>
{
var pet = pets.FirstOrDefault(r => r.Uuid == uuid);
if (pet == null)
return Results.NotFound();
if (animals != null) pet.Animals = animals;
if (breed != null) pet.Breed = breed;
return Results.Json(new PetEntityDto()
{
Uuid = pet.Uuid,
Animals = pet.Animals,
Breed = pet.Breed,
});
})
.WithName("UpdatePet")
.WithOpenApi();
app.MapDelete("/{uuid}", (Guid uuid) =>
{
var pet = pets.FirstOrDefault(r => r.Uuid == uuid);
if (pet == null)
return Results.NotFound();
pets.Remove(pet);
return Results.Json(new PetEntityDto()
{
Uuid = pet.Uuid,
Animals = pet.Animals,
Breed = pet.Breed,
});
})
.WithName("DeletePetByGUID")
.WithOpenApi();
app.Run();
public class Pets
{
public Guid Uuid { get; set; }
public string Animals { get; set; } = string.Empty;
public string Breed { get; set; } = string.Empty;
}
public class PetEntityDto : Pets { }

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

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

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@ -1,15 +0,0 @@
<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="7.0.0" />
<PackageReference Include="Swashbuckle.AspNetCore" Version="6.5.0" />
</ItemGroup>
</Project>

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@ -1,22 +0,0 @@

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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@ -1,11 +0,0 @@
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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@ -1,139 +0,0 @@
List<Location> locations = new()
{
new Location() { Uuid= Guid.NewGuid(), Habitat = "Америка", IsSingleLocation = true, IdBreed = Guid.Parse("6a1b4a72-5669-41fe-8d5b-106dc86f58bd") },
new Location() { Uuid= Guid.NewGuid(), Habitat = "Россия", IsSingleLocation = false, IdBreed = Guid.Parse("f8692bea-b7e6-4164-b564-a921f16c35c9") },
new Location() { Uuid= Guid.NewGuid(), Habitat = "Китай", IsSingleLocation = false, IdBreed = Guid.Parse("464bbdb8-39c0-4644-b9c0-3df1c484ea7e") },
new Location() { Uuid= Guid.NewGuid(), Habitat = "Хорватия", IsSingleLocation = true, IdBreed = Guid.Parse("464bbdb8-39c0-4644-b9c0-3df1c484ea7e") },
};
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("/", () =>
{
return locations.Select(r => new LocationEntityDto()
{
Uuid = r.Uuid,
Habitat = r.Habitat,
IsSingleLocation = r.IsSingleLocation,
IdBreed = r.IdBreed,
});
})
.WithName("GetLocations")
.WithOpenApi();
app.MapGet("/{uuid}", (Guid uuid) =>
{
var location = locations.FirstOrDefault(r => r.Uuid == uuid);
if (location == null)
return Results.NotFound();
return Results.Json(new LocationEntityDto()
{
Uuid = location.Uuid,
Habitat = location.Habitat,
IsSingleLocation = location.IsSingleLocation,
IdBreed = location.IdBreed,
});
})
.WithName("GetLocationByGUID")
.WithOpenApi();
app.MapPost("/{habitat}/{isSingleLocation}/{idBreed}", (string? Habitat, bool IsSingleLocation, Guid IdBreed) =>
{
Guid NewGuid = Guid.NewGuid();
locations.Add(new Location() { Uuid = NewGuid, Habitat = (string)Habitat, IsSingleLocation = (bool)IsSingleLocation, IdBreed = (Guid)IdBreed });
var location = locations.FirstOrDefault(r => r.Uuid == NewGuid);
if (location == null)
return Results.NotFound();
return Results.Json(new LocationEntityDto()
{
Uuid = location.Uuid,
Habitat = location.Habitat,
IsSingleLocation = location.IsSingleLocation,
IdBreed = location.IdBreed,
});
})
.WithName("PostLocation")
.WithOpenApi();
app.MapPatch("/{uuid}/{habitat}/{isSingleLocation}/{idBreed}", (Guid uuid, string ?habitat, bool isSingleLocation, Guid idBreed) =>
{
var location = locations.FirstOrDefault(r => r.Uuid == uuid);
if (location == null)
return Results.NotFound();
if (habitat != ",") location.Habitat = habitat;
if (isSingleLocation != location.IsSingleLocation) location.IsSingleLocation = isSingleLocation;
if (idBreed != location.IdBreed) location.IdBreed = idBreed;
return Results.Json(new LocationEntityDto()
{
Uuid = location.Uuid,
Habitat = location.Habitat,
IsSingleLocation = location.IsSingleLocation,
IdBreed = location.IdBreed,
});
})
.WithName("UpdateLocation")
.WithOpenApi();
app.MapDelete("/{uuid}", (Guid uuid) =>
{
var location = locations.FirstOrDefault(r => r.Uuid == uuid);
if (location == null)
return Results.NotFound();
locations.Remove(location);
return Results.Json(new LocationEntityDto()
{
Uuid = location.Uuid,
Habitat = location.Habitat,
IsSingleLocation = location.IsSingleLocation,
IdBreed = location.IdBreed,
});
})
.WithName("DeleteLocation")
.WithOpenApi();
app.MapGet("/Locations/", async () =>
{
var httpClient = new HttpClient();
var secondWorkerResponse = await httpClient.GetStringAsync("http://worker-1:8080/");
return secondWorkerResponse.ToArray();
})
.WithName("GetBreeds")
.WithOpenApi();
app.Run();
public class Location
{
public Guid Uuid { get; set; }
public string Habitat { get; set; } = string.Empty;
public bool IsSingleLocation { get; set; }
public Guid IdBreed { get; set; }
}
public class LocationEntityDto : Location { }
public class Breeds
{
public Guid Uuid { get; set; }
public string Animals { get; set; } = string.Empty;
public string Breed { get; set; } = string.Empty;
}
public class BreedEntityDto : Breeds { }

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@ -1,38 +0,0 @@
{
"$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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@ -1,8 +0,0 @@
{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
}
}

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

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@ -1,15 +0,0 @@
<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="7.0.0" />
<PackageReference Include="Swashbuckle.AspNetCore" Version="6.5.0" />
</ItemGroup>
</Project>

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@ -1,22 +0,0 @@

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

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@ -1,3 +0,0 @@
# Default ignored files
/shelf/
/workspace.xml

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@ -1 +0,0 @@
receive.py

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@ -1,6 +0,0 @@
<component name="InspectionProjectProfileManager">
<settings>
<option name="USE_PROJECT_PROFILE" value="false" />
<version value="1.0" />
</settings>
</component>

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@ -1,7 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="Black">
<option name="sdkName" value="Python 3.12 (python4Lab)" />
</component>
<component name="ProjectRootManager" version="2" project-jdk-name="Python 3.9 (lab_4)" project-jdk-type="Python SDK" />
</project>

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@ -1,8 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/.idea/python4Lab.iml" filepath="$PROJECT_DIR$/.idea/python4Lab.iml" />
</modules>
</component>
</project>

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@ -1,10 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<module type="PYTHON_MODULE" version="4">
<component name="NewModuleRootManager">
<content url="file://$MODULE_DIR$">
<excludeFolder url="file://$MODULE_DIR$/venv" />
</content>
<orderEntry type="jdk" jdkName="Python 3.9 (lab_4)" jdkType="Python SDK" />
<orderEntry type="sourceFolder" forTests="false" />
</component>
</module>

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@ -1,6 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="$PROJECT_DIR$/../../.." vcs="Git" />
</component>
</project>

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@ -1,20 +0,0 @@
import pika
import time
def process_message(ch, method, properties, body):
print(f"Получено сообщение: {body}")
time.sleep(3)
print("Сообщение успешно обработано")
connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
channel = connection.channel()
result = channel.queue_declare(queue='', exclusive=True)
queue_name = result.method.queue
channel.queue_bind(exchange='Agreements', queue=queue_name)
channel.basic_consume(queue=queue_name, on_message_callback=process_message, auto_ack=True)
print('Ожидание сообщений...')
channel.start_consuming()

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@ -1,19 +0,0 @@
import pika
def process_message(ch, method, properties, body):
print(f"Получено сообщение: {body}")
print("Сообщение успешно обработано")
connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
channel = connection.channel()
result = channel.queue_declare(queue='', exclusive=True)
queue_name = result.method.queue
channel.queue_bind(exchange='Agreements', queue=queue_name)
channel.basic_consume(queue=queue_name, on_message_callback=process_message, auto_ack=True)
print('Ожидание сообщений...')
channel.start_consuming()

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@ -1,19 +0,0 @@
import pika
import time
import random
collection = ["Application for Travel Agency", "Buying tickets", "Execution of the agreement", "Check-into a hotel"]
connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
channel = connection.channel()
channel.exchange_declare(exchange='Agreements', exchange_type='fanout')
while True:
message = f"Message: {random.choice(collection)}"
channel.basic_publish(exchange='Agreements', routing_key='', body=message)
time.sleep(1)
connection.close()

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@ -1,160 +0,0 @@
# Byte-compiled / optimized / DLL files
__pycache__/
*.py[cod]
*$py.class
# C extensions
*.so
# Distribution / packaging
.Python
build/
develop-eggs/
dist/
downloads/
eggs/
.eggs/
lib/
lib64/
parts/
sdist/
var/
wheels/
share/python-wheels/
*.egg-info/
.installed.cfg
*.egg
MANIFEST
# PyInstaller
# Usually these files are written by a python script from a template
# before PyInstaller builds the exe, so as to inject date/other infos into it.
*.manifest
*.spec
# Installer logs
pip-log.txt
pip-delete-this-directory.txt
# Unit test / coverage reports
htmlcov/
.tox/
.nox/
.coverage
.coverage.*
.cache
nosetests.xml
coverage.xml
*.cover
*.py,cover
.hypothesis/
.pytest_cache/
cover/
# Translations
*.mo
*.pot
# Django stuff:
*.log
local_settings.py
db.sqlite3
db.sqlite3-journal
# Flask stuff:
instance/
.webassets-cache
# Scrapy stuff:
.scrapy
# Sphinx documentation
docs/_build/
# PyBuilder
.pybuilder/
target/
# Jupyter Notebook
.ipynb_checkpoints
# IPython
profile_default/
ipython_config.py
# pyenv
# For a library or package, you might want to ignore these files since the code is
# intended to run in multiple environments; otherwise, check them in:
# .python-version
# pipenv
# According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
# However, in case of collaboration, if having platform-specific dependencies or dependencies
# having no cross-platform support, pipenv may install dependencies that don't work, or not
# install all needed dependencies.
#Pipfile.lock
# poetry
# Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
# This is especially recommended for binary packages to ensure reproducibility, and is more
# commonly ignored for libraries.
# https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
#poetry.lock
# pdm
# Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
#pdm.lock
# pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
# in version control.
# https://pdm.fming.dev/#use-with-ide
.pdm.toml
# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
__pypackages__/
# Celery stuff
celerybeat-schedule
celerybeat.pid
# SageMath parsed files
*.sage.py
# Environments
.env
.venv
env/
venv/
ENV/
env.bak/
venv.bak/
# Spyder project settings
.spyderproject
.spyproject
# Rope project settings
.ropeproject
# mkdocs documentation
/site
# mypy
.mypy_cache/
.dmypy.json
dmypy.json
# Pyre type checker
.pyre/
# pytype static type analyzer
.pytype/
# Cython debug symbols
cython_debug/
# PyCharm
# JetBrains specific template is maintained in a separate JetBrains.gitignore that can
# be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
# and can be added to the global gitignore or merged into this file. For a more nuclear
# option (not recommended) you can uncomment the following to ignore the entire idea folder.
#.idea/

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@ -1,116 +0,0 @@
# Отчет по лабораторной работе №4
Выполнил студент гр. ИСЭбд-41 Дунаев О.И.
## Прохождение tutorial
Установил rabbitMQ server, erlang и зашел в брокер под гостем по http://localhost:15672/#/
Туториал 1:
![](scrins/tut1.png)
![](scrins/send.png)
![](scrins/receive.png)
Туториал 2:
![](scrins/tut2.png)
![](scrins/newtask.png)
![](scrins/worker.png)
Туториал 3:
![](scrins/tut3.png)
![](scrins/emitlog.png)
![](scrins/receivelogs.png).
## Разработка демонстрационных приложений
Предметная область: Дополенительные соглашения и договора на заселение в отель Туристического агентства.
Разработа три приложения согласно предметной области.
1. Publisher
```py
import pika
import time
import random
collection = ["Application for Travel Agency", "Buying tickets", "Execution of the agreement", "Check-into a hotel"]
connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
channel = connection.channel()
channel.exchange_declare(exchange='Agreements', exchange_type='fanout')
while True:
message = f"Message: {random.choice(collection)}"
channel.basic_publish(exchange='Agreements', routing_key='', body=message)
time.sleep(1)
connection.close()
```
2. Consumer 1.
```py
import pika
import time
def process_message(ch, method, properties, body):
print(f"Получено сообщение: {body}")
time.sleep(3)
print("Сообщение успешно обработано")
connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
channel = connection.channel()
result = channel.queue_declare(queue='', exclusive=True)
queue_name = result.method.queue
channel.queue_bind(exchange='Agreements', queue=queue_name)
channel.basic_consume(queue=queue_name, on_message_callback=process_message, auto_ack=True)
print('Ожидание сообщений...')
channel.start_consuming()
```
3. Consumer 2.
```py
import pika
def process_message(ch, method, properties, body):
print(f"Получено сообщение: {body}")
print("Сообщение успешно обработано")
connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
channel = connection.channel()
result = channel.queue_declare(queue='', exclusive=True)
queue_name = result.method.queue
channel.queue_bind(exchange='Agreements', queue=queue_name)
channel.basic_consume(queue=queue_name, on_message_callback=process_message, auto_ack=True)
print('Ожидание сообщений...')
channel.start_consuming()
```
## Результаты выполнения лабораторной работы
Результат отработки Consumer_1:
![](scrins/maintask1.png)
Результат отработки Consumer_2:
![](scrins/maintask2.png)
![](scrins/maintask_dop.png)
Вывод: Consumer_2 нагружает меньше памяти, чем Consumer_1 и принимает сообщения гораздо быстрее, тем самым не позволяя очереди накапливать огромное количество сообщений.

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@ -1,25 +0,0 @@
import pika, sys, os
def main():
connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
channel = connection.channel()
channel.queue_declare(queue='DunaevLogs')
def callback(ch, method, properties, body):
print(f" [x] Получено сообщение: {body}")
channel.basic_consume(queue='DunaevLogs', on_message_callback=callback, auto_ack=True)
print(' [*] Ожидание сообщений. Для завершения CTRL+C')
channel.start_consuming()
if __name__ == '__main__':
try:
main()
except KeyboardInterrupt:
print('Произошла ошибка')
try:
sys.exit(0)
except SystemExit:
os._exit(0)

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@ -1,11 +0,0 @@
import pika
connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
channel = connection.channel()
channel.queue_declare(queue='dunaev')
channel.basic_publish(exchange='',routing_key='dunaev',body='Hello, my name is Oleg, i am from ISEbd-41!')
print(" [x] Отправлено сообщение")
connection.close()

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@ -1,13 +0,0 @@
import pika
import sys
connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
channel = connection.channel()
channel.queue_declare(queue='dunaev2', durable=True)
message = ' '.join(sys.argv[1:]) or "Hello, my name is Oleg, i am from ISEbd-41!"
channel.basic_publish(exchange='', routing_key='dunaev2', body=message, properties=pika.BasicProperties(
delivery_mode=pika.spec.PERSISTENT_DELIVERY_MODE))
print(f" [x] Отправлено {message}")
connection.close()

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@ -1,19 +0,0 @@
import pika
import time
connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
channel = connection.channel()
channel.queue_declare(queue='dunaev2', durable=True)
print(' [*] Ожидание сообщений.')
def callback(ch, method, properties, body):
print(f" [x] Получено сообщение: {body.decode()}")
time.sleep(body.count(b'.'))
print(" [x] Выполнено")
ch.basic_ack(delivery_tag=method.delivery_tag)
channel.basic_qos(prefetch_count=1)
channel.basic_consume(queue='dunaev2', on_message_callback=callback)
channel.start_consuming()

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@ -1,12 +0,0 @@
import pika
import sys
connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
channel = connection.channel()
channel.exchange_declare(exchange='DunaevLogs', exchange_type='fanout')
message = ' '.join(sys.argv[1:]) or "Info: Hello, my name is Oleg, i am from ISEbd-41!"
channel.basic_publish(exchange='DunaevLogs', routing_key='', body=message)
print(f" [x] Отправлено сообщение: {message}")
connection.close()

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@ -1,21 +0,0 @@
import pika
connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
channel = connection.channel()
channel.exchange_declare(exchange='DunaevLogs', exchange_type='fanout')
result = channel.queue_declare(queue='', exclusive=True)
queue_name = result.method.queue
channel.queue_bind(exchange='DunaevLogs', queue=queue_name)
print(' [*] Ожидание сообщений. Для завершения CTRL+C')
def callback(ch, method, properties, body):
print(f" [x] {body}")
channel.basic_consume(
queue=queue_name, on_message_callback=callback, auto_ack=True)
channel.start_consuming()

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# Отчет по лабораторной работе №8
Выполнил студент гр. ИСЭбд-41 Дунаев О.И.
## Задачи
Написать небольшое эссе (буквально несколько абзацев) своими словами. А помогут Вам в этом вопросы из списка:
1. Зачем сложные системы (например, социальная сеть ВКонтакте) пишутся в "распределенном" стиле, где каждое отдельное приложение (или сервис) функционально выполняет только ограниченный спектр задач?
2. Для чего были созданы системы оркестрации приложений? Каким образом они упрощают / усложняют разработку и сопровождение распределенных систем?
3. Для чего нужны очереди обработки сообщений и что может подразумеваться под сообщениями?
4. Какие преимущества и недостатки распределенных приложений существуют на Ваш взгляд?
5. Целесообразно ли в сложную распределенную систему внедрять параллельные вычисления? Приведите примеры, когда это действительно нужно, а когда нет.
## Эссе
1.Каждое приложение функционально выполняет ограниченный спектр задач, что позволяет системе быть модульной и легко адаптируемой к изменениям в требованиях или технологиях. Это также снижает общую сложность системы, поскольку отдельные компоненты могут быть разработаны, протестированы и развернуты независимо друг от друга.
2.Системы оркестрации приложений были созданы для упрощения управления и координации распределенных систем. Они позволяют автоматизировать развертывание, масштабирование и мониторинг приложений, а также обеспечивают интеграцию различных сервисов и компонентов. В то же время, их использование может усложнить разработку и поддержку распределенных систем для менее опытных разработчиков, поскольку требует понимания и применения определенных инструментов и подходов.
3.Очереди обработки сообщений нужны для асинхронной коммуникации между компонентами распределенных систем и обеспечения их стабильной работы. Сообщениями могут быть любые данные, которые требуют обработки или передачи между различными частями приложения.
4.Распределенные приложения имеют преимущества, такие как масштабируемость, надежность и гибкость. Однако они также имеют и недостатки, такие как сложность в управлении и сопровождении, проблемы с согласованностью данных и необходимость в более сложной инфраструктуре.
5.Внедрение параллельных вычислений в сложную распределенную систему может быть целесообразным, если система должна обрабатывать большое количество данных или выполнять множество операций одновременно. Это может ускорить процесс обработки и повысить производительность. Однако это также может увеличить сложность системы и потребовать дополнительных усилий для обеспечения ее стабильности и согласованности. Примеры, когда параллельные вычисления действительно нужны, включают обработку больших объемов данных, анализ в реальном времени и игры с интенсивной графикой. В то время как для систем, которые выполняют менее сложные и ресурсоемкие операции, параллельные вычисления могут не потребоваться.

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@ -1,477 +0,0 @@
## Ignore Visual Studio temporary files, build results, and
## files generated by popular Visual Studio add-ons.
##
## Get latest from https://github.com/github/gitignore/blob/main/VisualStudio.gitignore
# User-specific files
*.rsuser
*.suo
*.user
*.userosscache
*.sln.docstates
# User-specific files (MonoDevelop/Xamarin Studio)
*.userprefs
# Mono auto generated files
mono_crash.*
# Build results
[Dd]ebug/
[Dd]ebugPublic/
[Rr]elease/
[Rr]eleases/
x64/
x86/
[Ww][Ii][Nn]32/
[Aa][Rr][Mm]/
[Aa][Rr][Mm]64/
bld/
[Bb]in/
[Oo]bj/
[Ll]og/
[Ll]ogs/
# Visual Studio 2015/2017 cache/options directory
.vs/
# Uncomment if you have tasks that create the project's static files in wwwroot
#wwwroot/
# Visual Studio 2017 auto generated files
Generated\ Files/
# MSTest test Results
[Tt]est[Rr]esult*/
[Bb]uild[Ll]og.*
# NUnit
*.VisualState.xml
TestResult.xml
nunit-*.xml
# Build Results of an ATL Project
[Dd]ebugPS/
[Rr]eleasePS/
dlldata.c
# Benchmark Results
BenchmarkDotNet.Artifacts/
# .NET
project.lock.json
project.fragment.lock.json
artifacts/
# Tye
.tye/
# ASP.NET Scaffolding
ScaffoldingReadMe.txt
# StyleCop
StyleCopReport.xml
# Files built by Visual Studio
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##
## Visual studio for Mac
##
# globs
Makefile.in
*.userprefs
*.usertasks
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aclocal.m4
install-sh
autom4te.cache/
*.tar.gz
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# content below from: https://github.com/github/gitignore/blob/master/Global/macOS.gitignore
# General
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# Icon must end with two \r
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# Thumbnails
._*
# Files that might appear in the root of a volume
.DocumentRevisions-V100
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.Spotlight-V100
.TemporaryItems
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# Directories potentially created on remote AFP share
.AppleDB
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Network Trash Folder
Temporary Items
.apdisk
# content below from: https://github.com/github/gitignore/blob/master/Global/Windows.gitignore
# Windows thumbnail cache files
Thumbs.db
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*.stackdump
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*.lnk

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## Создание приложений
Создадим 2 приложения.
Был выбран язык C# и технология .NET 5.
Для создания обычных консольных приложений воспользуемся командами:
```sh
dotnet new console -o worker-1
dotnet new console -o worker-2
```
Согласно варианту, программа 1 ищет в каталоге /var/data файл с наибольшим количеством строк и перекладывает его в /var/result/data.txt.
[Исходный код программы worker-1](worker-1/Program.cs)
Согласно варианту программа 2 должна искать набольшее число из файла /var/data/data.txt и сохраняет его вторую степень в /var/result/result.txt.
[Исходный код программы worker-2](worker-2/Program.cs)
Дополнительно создан файл [.gitignore](.gitignore) для того, чтобы не закоммитить в git ничего лишнего.
## Настройка окружения
Для связи двух приложений воспользуемся следующей схемой:
1. Каталог `./data` должен быть примонтирован в каталог `/var/data` для программы 1.
Оттуда будут браться исходные данные.
2. Каталог `./result-1` должен быть примонтирован в каталог `/var/result` для программы 2.
Туда будут складываться промежуточные данные.
3. Каталог `./result-1` также должен быть примонтирован в каталог `/var/data` для программы 2.
Оттуда будут браться промежуточные результаты.
4. Каталог `./result` должен быть примонтирован в каталог `/var/result` для программы 2.
Туда будут складывать результаты финальной обработки.
Для каждой программы были созданы файлы Dockerfile ([программа 1](worker-1/Dockerfile), [программа 2](worker-2/Dockerfile)) с подробным описанием процесса сборки.
Был создан файл [docker-compose.yml](docker-compose.yml), в котором указан манифест для запуска распределённого приложения.
## Сборка и запуск
1. В каталог `./data` помещены 3 файла с различными названиями и содержимым.
![](scrins/1.png)
На выходе программа должна записать данные из рандомного файла директории `/var/data`.
![](scrins/5.png)
![](scrins/3.png)
![](scrins/4.png)
2. Теперь, обрабатывая эти файлы:
![](scrins/2.png)
На выходе программа должна записать число 7921 в `./result` так как в файле c названием data.txt наибольшее число = 89.
![](scrins/6.png)
Для запуска приложения необходимо ввести команду `docker compose up --build`.
Результат запуска после сборки:
```
[+] Running 2/1
✔ Container lab_2-worker-1-1 Created 0.0s
✔ Container lab_2-worker-2-1 Created 0.0s
Attaching to lab_2-worker-1-1, lab_2-worker-2-1
lab_2-worker-1-1 | Файл /var/data/data.txt успешно скопирован в /var/result/data.txt.
lab_2-worker-1-1 exited with code 0
lab_2-worker-2-1 | Квадрат наибольшего числа сохранено в файле: /var/result/result.txt
lab_2-worker-2-1 exited with code 0
```
В результате в каталоге `./result` создался файл `result.txt` с содержимым `7921`, что соответствует входным данным.
Изменение значений в файлах из каталога `./data` также изменяет содержимое в файлах из каталогов `./result-1` и `./result`.

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12
32
43
23
65
43

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12
1
2

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54
65
3
24
67
89
32
1
5
74

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version: "3.1"
services:
worker-1:
build: ./worker-1
volumes:
# Монтирует локальную папку data к папке data в контейнере.
- ./data:/var/data
# Монтирует локальную папку result-1 к папке result в контейнере.
- ./result-1:/var/result
worker-2:
build: ./worker-2
volumes:
# Монтирует локальную папку result-1 к папке data в контейнере.
- ./result-1:/var/data
- ./result:/var/result
# Зависимость от первого приложения.
depends_on:
- worker-1

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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-1", "worker-1\worker-1.csproj", "{80526535-7D67-463B-BCDF-F1597E28E1E4}"
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "worker-2", "worker-2\worker-2.csproj", "{5F199E11-291F-4AB7-9422-A24FD4EA5727}"
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
{80526535-7D67-463B-BCDF-F1597E28E1E4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{80526535-7D67-463B-BCDF-F1597E28E1E4}.Debug|Any CPU.Build.0 = Debug|Any CPU
{80526535-7D67-463B-BCDF-F1597E28E1E4}.Release|Any CPU.ActiveCfg = Release|Any CPU
{80526535-7D67-463B-BCDF-F1597E28E1E4}.Release|Any CPU.Build.0 = Release|Any CPU
{5F199E11-291F-4AB7-9422-A24FD4EA5727}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{5F199E11-291F-4AB7-9422-A24FD4EA5727}.Debug|Any CPU.Build.0 = Debug|Any CPU
{5F199E11-291F-4AB7-9422-A24FD4EA5727}.Release|Any CPU.ActiveCfg = Release|Any CPU
{5F199E11-291F-4AB7-9422-A24FD4EA5727}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
EndGlobal

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54
65
3
24
67
89
32
1
5
74

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@ -1 +0,0 @@
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# Задаем базовый образ на .net
FROM mcr.microsoft.com/dotnet/sdk:5.0 AS build-env
# Задаем рабочую директорию
WORKDIR /src
# Копируем файлы и папки в каталог в контейнер
COPY . ./
# Создаем образы и устанавливаем данные пакеты в контейнер
RUN dotnet restore
COPY . .
RUN dotnet publish -c Release -o /publish
FROM mcr.microsoft.com/dotnet/aspnet:5.0
WORKDIR /publish
COPY --from=build-env /publish .
# Вызываем приложение во время выполнения контейнера
ENTRYPOINT ["dotnet", "worker-1.dll"]

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@ -1,60 +0,0 @@
using System;
using System.IO;
namespace FileManipulation
{
class Program
{
static void Main(string[] args)
{
string sourceDirectoryPath = "/var/data";
string destinationFilePath = "/var/result/data.txt";
string fileWithMostLines = string.Empty;
int maxLineCount = 0;
try
{
DirectoryInfo sourceDirectory = new DirectoryInfo(sourceDirectoryPath);
FileInfo[] files = sourceDirectory.GetFiles();
foreach (var file in files)
{
int lineCount = File.ReadLines(file.FullName).Count();
if (lineCount > maxLineCount)
{
maxLineCount = lineCount;
fileWithMostLines = file.FullName;
}
}
if (!string.IsNullOrEmpty(fileWithMostLines))
{
// Перемещение файла с наибольшим количеством строк в новое место
File.Move(fileWithMostLines, destinationFilePath);
Console.WriteLine($"Файл {fileWithMostLines} успешно перемещен в {destinationFilePath}.");
}
else
{
Console.WriteLine("В указанном каталоге нет файлов.");
}
}
catch (DirectoryNotFoundException)
{
Console.WriteLine("Указанный каталог не существует.");
}
catch (IOException ex)
{
Console.WriteLine($"Произошла ошибка при перемещении файла: {ex.Message}");
}
catch (UnauthorizedAccessException)
{
Console.WriteLine("Недостаточно прав для доступа к каталогу или файлу.");
}
catch (Exception ex)
{
Console.WriteLine($"Произошла непредвиденная ошибка: {ex.Message}");
}
}
}
}

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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net5.0</TargetFramework>
<RootNamespace>worker_1</RootNamespace>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
<LangVersion>10.0</LangVersion>
</PropertyGroup>
</Project>

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@ -1,18 +0,0 @@
# Задаем базовый образ на .net
FROM mcr.microsoft.com/dotnet/sdk:5.0 AS build-env
# Задаем рабочую директорию
WORKDIR /src
# Копируем файлы и папки в каталог в контейнер
COPY . ./
# Создаем образы и устанавливаем данные пакеты в контейнер
RUN dotnet restore
COPY . .
RUN dotnet publish -c Release -o /publish
FROM mcr.microsoft.com/dotnet/aspnet:5.0
WORKDIR /publish
COPY --from=build-env /publish .
# Вызываем приложение во время выполнения контейнера
ENTRYPOINT ["dotnet", "worker-2.dll"]

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@ -1,60 +0,0 @@
using System;
using System.IO;
namespace FileManipulation
{
class Program
{
static void Main(string[] args)
{
string sourceDirectoryPath = "/var/data";
string destinationFilePath = "/var/result/data.txt";
string fileWithMostLines = string.Empty;
int maxLineCount = 0;
try
{
DirectoryInfo sourceDirectory = new DirectoryInfo(sourceDirectoryPath);
FileInfo[] files = sourceDirectory.GetFiles();
foreach (var file in files)
{
int lineCount = File.ReadLines(file.FullName).Count();
if (lineCount > maxLineCount)
{
maxLineCount = lineCount;
fileWithMostLines = file.FullName;
}
}
if (!string.IsNullOrEmpty(fileWithMostLines))
{
// Перемещение файла с наибольшим количеством строк в новое место
File.Move(fileWithMostLines, destinationFilePath);
Console.WriteLine($"Файл {fileWithMostLines} успешно перемещен в {destinationFilePath}.");
}
else
{
Console.WriteLine("В указанном каталоге нет файлов.");
}
}
catch (DirectoryNotFoundException)
{
Console.WriteLine("Указанный каталог не существует.");
}
catch (IOException ex)
{
Console.WriteLine($"Произошла ошибка при перемещении файла: {ex.Message}");
}
catch (UnauthorizedAccessException)
{
Console.WriteLine("Недостаточно прав для доступа к каталогу или файлу.");
}
catch (Exception ex)
{
Console.WriteLine($"Произошла непредвиденная ошибка: {ex.Message}");
}
}
}
}

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@ -1,12 +0,0 @@
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net5.0</TargetFramework>
<RootNamespace>worker_2</RootNamespace>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
<LangVersion>9.0</LangVersion>
</PropertyGroup>
</Project>

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@ -1,454 +0,0 @@
## Ignore Visual Studio temporary files, build results, and
## files generated by popular Visual Studio add-ons.
##
## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
# User-specific files
*.rsuser
*.suo
*.user
*.userosscache
*.sln.docstates
# User-specific files (MonoDevelop/Xamarin Studio)
*.userprefs
# Mono auto generated files
mono_crash.*
# Build results
[Dd]ebug/
[Dd]ebugPublic/
[Rr]elease/
[Rr]eleases/
x64/
x86/
[Ww][Ii][Nn]32/
[Aa][Rr][Mm]/
[Aa][Rr][Mm]64/
bld/
[Bb]in/
[Oo]bj/
[Ll]og/
[Ll]ogs/
# Visual Studio 2015/2017 cache/options directory
.vs/
# Uncomment if you have tasks that create the project's static files in wwwroot
#wwwroot/
# Visual Studio 2017 auto generated files
Generated\ Files/
# MSTest test Results
[Tt]est[Rr]esult*/
[Bb]uild[Ll]og.*
# NUnit
*.VisualState.xml
TestResult.xml
nunit-*.xml
# Build Results of an ATL Project
[Dd]ebugPS/
[Rr]eleasePS/
dlldata.c
# Benchmark Results
BenchmarkDotNet.Artifacts/
# .NET
project.lock.json
project.fragment.lock.json
artifacts/
# Tye
.tye/
# ASP.NET Scaffolding
ScaffoldingReadMe.txt
# StyleCop
StyleCopReport.xml
# Files built by Visual Studio
*_i.c
*_p.c
*_h.h
*.ilk
*.meta
*.obj
*.iobj
*.pch
*.pdb
*.ipdb
*.pgc
*.pgd
*.rsp
*.sbr
*.tlb
*.tli
*.tlh
*.tmp
*.tmp_proj
*_wpftmp.csproj
*.log
*.vspscc
*.vssscc
.builds
*.pidb
*.svclog
*.scc
# Chutzpah Test files
_Chutzpah*
# Visual C++ cache files
ipch/
*.aps
*.ncb
*.opendb
*.opensdf
*.sdf
*.cachefile
*.VC.db
*.VC.VC.opendb
# Visual Studio profiler
*.psess
*.vsp
*.vspx
*.sap
# Visual Studio Trace Files
*.e2e
# TFS 2012 Local Workspace
$tf/
# Guidance Automation Toolkit
*.gpState
# ReSharper is a .NET coding add-in
_ReSharper*/
*.[Rr]e[Ss]harper
*.DotSettings.user
# TeamCity is a build add-in
_TeamCity*
# DotCover is a Code Coverage Tool
*.dotCover
# AxoCover is a Code Coverage Tool
.axoCover/*
!.axoCover/settings.json
# Coverlet is a free, cross platform Code Coverage Tool
coverage*.json
coverage*.xml
coverage*.info
# Visual Studio code coverage results
*.coverage
*.coveragexml
# NCrunch
_NCrunch_*
.*crunch*.local.xml
nCrunchTemp_*
# MightyMoose
*.mm.*
AutoTest.Net/
# Web workbench (sass)
.sass-cache/
# Installshield output folder
[Ee]xpress/
# DocProject is a documentation generator add-in
DocProject/buildhelp/
DocProject/Help/*.HxT
DocProject/Help/*.HxC
DocProject/Help/*.hhc
DocProject/Help/*.hhk
DocProject/Help/*.hhp
DocProject/Help/Html2
DocProject/Help/html
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# Note: Comment the next line if you want to checkin your web deploy settings,
# but database connection strings (with potential passwords) will be unencrypted
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# checkin your Azure Web App publish settings, but sensitive information contained
# in these scripts will be unencrypted
PublishScripts/
# NuGet Packages
*.nupkg
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# The packages folder can be ignored because of Package Restore
**/[Pp]ackages/*
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!**/[Pp]ackages/build/
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##
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# General
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# Thumbnails
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Thumbs.db
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# Dump file
*.stackdump
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[Dd]esktop.ini
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$RECYCLE.BIN/
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*.cab
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##
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@ -1,72 +0,0 @@
# Отчет по лабораторной работе №3
Выполнил студент Михайлов Юрий гр. ИСЭбд-41 .
## REST API, Gateway и синхронный обмен между микросервисами
## Создание микросервисов
1. С помощью команды `dotnet new web -n worker-1` в терминале создали первый микросервис.
2. Добавил решение `dotnet new sln`. Связал решение и проект командой `dotnet sln worker-1.sln add worker-1.csproj` повторил для 2-ого микросервиса.
3. Добавил библиотеку Swagger и OpenAi в проекты и запустил с помощью команды `dotnet run`.
Протестированный микросервис:
![](picture/1.png)
## Реализация синхронного обмена.
Реализован код, который вызывет сихронно данные из соседнего микросервиса.
```cs
app.MapGet("/Сities/", async () =>
{
var httpClient = new HttpClient();
var secondWorkerResponse = await httpClient.GetStringAsync("http://worker-1:8080/");
return secondWorkerResponse.ToArray();
})
.WithName("GetCountries")
.WithOpenApi();
```
## 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 команды `docker-compose up`:
Docker desktop:
![](picture/3.png)
index.html на gateway-1:
![](picture/4.png)
worker-1:
![](picture/5.png)
worker-2:
![](picture/6.png)

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@ -1,15 +0,0 @@
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

View File

@ -1,26 +0,0 @@
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>Выполнил студент гр. ИСЭбд-41. Михайлов Юрий</p>
<p><a href="/worker-1/">Отправить запрос к worker-1</a></p>
<p><a href="/worker-2/">Отправить запрос к worker-2</a></p>
</body>
</html>

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@ -1,11 +0,0 @@
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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@ -1,118 +0,0 @@
List<Countries > countries = new()
{
new Countries () { Uuid= Guid.Parse("6a1b4a72-5669-41fe-8d5b-106dc86f58bd"), Name = "Russia", Area = "1222" },
new Countries () { Uuid= Guid.Parse("464bbdb8-39c0-4644-b9c0-3df1c484ea7e"), Name = "USA", Area = "0" },
new Countries () { Uuid= Guid.Parse("f8692bea-b7e6-4164-b564-a921f16c35c9"), Name = "Germany", Area = "1" },
};
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("/", () =>
{
return countries.Select(r => new CountrieEntityDto()
{
Uuid = r.Uuid,
Name = r.Name,
Area = r.Area,
});
})
.WithName("GetCountries")
.WithOpenApi();
app.MapGet("/{uuid}", (Guid uuid) =>
{
var countrie = countries.FirstOrDefault(r => r.Uuid == uuid);
if (countrie == null)
return Results.NotFound();
return Results.Json(new CountrieEntityDto()
{
Uuid = countrie.Uuid,
Name = countrie.Name,
Area = countrie.Area,
});
})
.WithName("GetCountrieByGUID")
.WithOpenApi();
app.MapPost("/{name}/{area}", (string name, string area) =>
{
Guid NewGuid = Guid.NewGuid();
countries.Add(new Countries() { Uuid = NewGuid, Name = (string)name, Area = (string)area});
var countrie = countries.FirstOrDefault(r => r.Uuid == NewGuid);
if (countrie == null)
return Results.NotFound();
return Results.Json(new CountrieEntityDto()
{
Uuid = countrie.Uuid,
Name = countrie.Name,
Area = countrie.Area,
});
})
.WithName("PostCountrie")
.WithOpenApi();
app.MapPatch("/{uuid}/{name}/{area}", (Guid uuid, string ?name, string ?area) =>
{
var countrie = countries.FirstOrDefault(r => r.Uuid == uuid);
if (countrie == null)
return Results.NotFound();
if (name != null) countrie.Name = name;
if (area != ",") countrie.Area = area;
return Results.Json(new CountrieEntityDto()
{
Uuid = countrie.Uuid,
Name = countrie.Name,
Area = countrie.Area,
});
})
.WithName("UpdateCountrie")
.WithOpenApi();
app.MapDelete("/{uuid}", (Guid uuid) =>
{
var countrie = countries.FirstOrDefault(r => r.Uuid == uuid);
if (countrie == null)
return Results.NotFound();
countries.Remove(countrie);
return Results.Json(new CountrieEntityDto()
{
Uuid = countrie.Uuid,
Name = countrie.Name,
Area = countrie.Area,
});
})
.WithName("DeleteCountrieByGUID")
.WithOpenApi();
app.Run();
public class Countries
{
public Guid Uuid { get; set; }
public string Name { get; set; } = string.Empty;
public string Area { get; set; } = string.Empty;
}
public class CountrieEntityDto : Countries { }

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@ -1,38 +0,0 @@
{
"$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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@ -1,8 +0,0 @@
{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
}
}

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

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@ -1,15 +0,0 @@
<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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