add configs

.gitignore

@@ -1,5 +1,50 @@
-bin/
+## Ignore Visual Studio temporary files, build results, and
-obj/
+## files generated by popular Visual Studio add-ons.
-/packages/
+
+# User-specific files
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+[Aa][Rr][Mm]/
+[Aa][Rr][Mm]64/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+
+# Visual Studio cache/options directory
+.vs/
+.vscode/
+
+# Rider
+.idea/
+*.sln.iml
 riderModule.iml
 /_ReSharper.Caches/
+
+# NuGet Packages
+*.nupkg
+**/packages/*
+!**/packages/build/
+
+# Docker
+docker-compose.override.yml
+
+# Temporary files
+*.tmp
+*.log
+*.swp
+*~
+
+# OS files
+.DS_Store
+Thumbs.db

README.md

@@ -0,0 +1,237 @@
+# LiquidCode Tester
+
+Система автоматической проверки решений задач по программированию (Online Judge) для платформы LiquidCode.
+
+## Архитектура
+
+Проект состоит из трёх основных компонентов:
+
+### 1. Gateway (Шлюз)
+- **Технология**: ASP.NET Core Web API
+- **Функции**:
+  - Приём запросов на тестирование через REST API
+  - Скачивание пакетов задач из Polygon
+  - Маршрутизация запросов к соответствующим Worker'ам по языку программирования
+
+### 2. Worker (Тестировщик)
+- **Технология**: ASP.NET Core Web API + компиляторы языков
+- **Функции**:
+  - Компиляция пользовательского кода
+  - Запуск в изолированной среде
+  - Тестирование на наборе тестов
+  - Контроль ограничений по времени и памяти
+  - Отправка статусов на callback URL
+
+### 3. Common (Общая библиотека)
+- **Технология**: .NET Class Library
+- **Функции**: Общие модели данных для Gateway и Worker
+
+## Поддерживаемые языки
+
+- **C++** (текущая реализация)
+- Java (планируется)
+- Kotlin (планируется)
+- C# (планируется)
+
+## Модель данных
+
+### SubmitForTesterModel (запрос на тестирование)
+```csharp
+public record SubmitForTesterModel(
+    long Id,
+    long MissionId,
+    string Language,
+    string LanguageVersion,
+    string SourceCode,
+    string PackageUrl,
+    string CallbackUrl
+);
+```
+
+### TesterResponseModel (результат тестирования)
+```csharp
+public record TesterResponseModel(
+    long SubmitId,
+    State State,          // Waiting, Compiling, Testing, Done
+    ErrorCode ErrorCode,  // None, CompileError, RuntimeError, etc.
+    string Message,
+    int CurrentTest,
+    int AmountOfTests
+);
+```
+
+## Быстрый старт
+
+### Локальная разработка (Docker Compose)
+
+```bash
+# Сборка и запуск всех сервисов
+docker-compose up --build
+
+# Gateway доступен на http://localhost:8080
+# Worker доступен на http://localhost:8081
+```
+
+### Разработка без Docker
+
+```bash
+# Сборка всего решения
+dotnet build
+
+# Запуск Gateway
+cd src/LiquidCode.Tester.Gateway
+dotnet run
+
+# Запуск Worker (в другом терминале)
+cd src/LiquidCode.Tester.Worker
+dotnet run
+```
+
+## API Endpoints
+
+### Gateway
+
+**POST /api/tester/submit**
+```json
+{
+  "id": 123,
+  "missionId": 456,
+  "language": "C++",
+  "languageVersion": "17",
+  "sourceCode": "#include <iostream>\nint main() { ... }",
+  "packageUrl": "https://example.com/package.zip",
+  "callbackUrl": "https://example.com/api/submit/callback"
+}
+```
+
+**GET /api/tester/health**
+- Проверка состояния Gateway
+
+### Worker
+
+**POST /api/test**
+- Принимает multipart/form-data с метаданными и ZIP файлом пакета
+
+**GET /api/test/health**
+- Проверка состояния Worker
+
+## Процесс тестирования
+
+1. **Приём запроса**: Gateway получает запрос с кодом и URL пакета
+2. **Скачивание пакета**: Gateway скачивает Polygon пакет
+3. **Маршрутизация**: Gateway отправляет запрос в Worker для нужного языка
+4. **Парсинг**: Worker распаковывает и парсит пакет (тесты, лимиты)
+5. **Компиляция**: Worker компилирует код (g++ для C++)
+6. **Тестирование**: Worker последовательно запускает все тесты
+7. **Callback**: Worker отправляет статусы на callback URL на каждом этапе
+8. **Cleanup**: Worker удаляет временные файлы
+
+## Изоляция и безопасность
+
+### Текущая реализация
+- Процессы запускаются с ограничением по времени
+- Контроль памяти через PeakWorkingSet64
+- Процессы убиваются при превышении лимитов
+
+### Production рекомендации
+- Linux namespaces (PID, network, mount)
+- cgroups для контроля CPU и памяти
+- seccomp для ограничения системных вызовов
+- AppArmor/SELinux профили
+- chroot окружение
+- Отключение доступа к сети для тестируемого кода
+
+## Деплой в Kubernetes
+
+См. [k8s/README.md](k8s/README.md) для подробной инструкции.
+
+```bash
+# Быстрый деплой
+kubectl apply -f k8s/namespace.yaml
+kubectl apply -f k8s/configmap.yaml
+kubectl apply -f k8s/worker-cpp-deployment.yaml
+kubectl apply -f k8s/gateway-deployment.yaml
+```
+
+## Конфигурация
+
+### Gateway (appsettings.json)
+```json
+{
+  "PackageDownloadDirectory": "/tmp/packages",
+  "Workers": {
+    "Cpp": "http://liquidcode-tester-worker-cpp:8080"
+  }
+}
+```
+
+### Worker (appsettings.json)
+```json
+{
+  "Cpp": {
+    "Compiler": "g++",
+    "CompilerFlags": "-O2 -std=c++17 -Wall"
+  }
+}
+```
+
+## Структура проекта
+
+```
+LiquidCode.Tester/
+├── src/
+│   ├── LiquidCode.Tester.Common/        # Общие модели
+│   │   └── Models/
+│   ├── LiquidCode.Tester.Gateway/       # API Gateway
+│   │   ├── Controllers/
+│   │   ├── Services/
+│   │   └── Dockerfile
+│   └── LiquidCode.Tester.Worker/        # C++ Worker
+│       ├── Controllers/
+│       ├── Services/
+│       └── Dockerfile
+├── k8s/                                  # Kubernetes манифесты
+├── compose.yaml                          # Docker Compose
+└── README.md
+```
+
+## Требования
+
+- .NET 9.0 SDK
+- Docker & Docker Compose (для контейнеризации)
+- g++ (для C++ Worker)
+- Kubernetes cluster (для production)
+
+## Расширение на другие языки
+
+Для добавления поддержки нового языка:
+
+1. Создайте новый Worker проект (или расширьте существующий)
+2. Реализуйте `ICompilationService` для языка
+3. Реализуйте `IExecutionService` для языка
+4. Обновите конфигурацию Gateway
+5. Создайте Dockerfile с нужным компилятором/runtime
+6. Добавьте Kubernetes манифесты
+
+## Разработка
+
+### Структура кода
+- **Controllers**: REST API endpoints
+- **Services**: Бизнес-логика (компиляция, тестирование, callback)
+- **Models**: Модели данных
+
+### Логирование
+Используется встроенный ILogger ASP.NET Core.
+
+### Тестирование
+```bash
+dotnet test
+```
+
+## Лицензия
+
+[Укажите лицензию]
+
+## Авторы
+
+LiquidCode Team

compose.yaml

@@ -1,19 +1,42 @@
 services:
-  liquidcode.tester.gateway:
+  gateway:
-    image: liquidcode.tester.gateway
+    image: liquidcode-tester-gateway:latest
+    container_name: liquidcode-tester-gateway
     build:
       context: .
-      dockerfile: LiquidCode.Tester.Gateway/Dockerfile
+      dockerfile: src/LiquidCode.Tester.Gateway/Dockerfile
+    ports:
+      - "8080:8080"
+    environment:
+      - ASPNETCORE_ENVIRONMENT=Development
+      - Workers__Cpp=http://worker-cpp:8080
+    networks:
+      - liquidcode-network
+    depends_on:
+      - worker-cpp
 
-  liquidcode.tester.worker:
+  worker-cpp:
-    image: liquidcode.tester.worker
+    image: liquidcode-tester-worker-cpp:latest
+    container_name: liquidcode-tester-worker-cpp
     build:
       context: .
       dockerfile: src/LiquidCode.Tester.Worker/Dockerfile
+    ports:
+      - "8081:8080"
+    environment:
+      - ASPNETCORE_ENVIRONMENT=Development
+    networks:
+      - liquidcode-network
+    # For better isolation in production, consider:
+    # security_opt:
+    #   - no-new-privileges:true
+    # cap_drop:
+    #   - ALL
+    # cap_add:
+    #   - SETUID
+    #   - SETGID
 
-  liquidcode.tester.common:
+networks:
-    image: liquidcode.tester.common
+  liquidcode-network:
-    build:
+    driver: bridge
-      context: .
-      dockerfile: src/LiquidCode.Tester.Common/Dockerfile
 

k8s/README.md

@@ -0,0 +1,92 @@
+# Kubernetes Deployment
+
+## Prerequisites
+
+- Kubernetes cluster (minikube, kind, or cloud provider)
+- kubectl configured
+- Docker images built and available
+
+## Building Docker Images
+
+```bash
+# Build Gateway image
+docker build -t liquidcode-tester-gateway:latest -f src/LiquidCode.Tester.Gateway/Dockerfile .
+
+# Build C++ Worker image
+docker build -t liquidcode-tester-worker-cpp:latest -f src/LiquidCode.Tester.Worker/Dockerfile .
+```
+
+## Deploying to Kubernetes
+
+```bash
+# Create namespace
+kubectl apply -f k8s/namespace.yaml
+
+# Apply ConfigMap
+kubectl apply -f k8s/configmap.yaml
+
+# Deploy Worker (must be deployed first)
+kubectl apply -f k8s/worker-cpp-deployment.yaml
+
+# Deploy Gateway
+kubectl apply -f k8s/gateway-deployment.yaml
+```
+
+## Checking Status
+
+```bash
+# Check all resources
+kubectl get all -n liquidcode-tester
+
+# Check pods
+kubectl get pods -n liquidcode-tester
+
+# Check services
+kubectl get services -n liquidcode-tester
+
+# View logs
+kubectl logs -n liquidcode-tester -l app=gateway
+kubectl logs -n liquidcode-tester -l app=worker-cpp
+```
+
+## Access the Gateway
+
+```bash
+# Get the external IP (for LoadBalancer)
+kubectl get service liquidcode-tester-gateway -n liquidcode-tester
+
+# For minikube
+minikube service liquidcode-tester-gateway -n liquidcode-tester
+
+# Port forward (alternative)
+kubectl port-forward -n liquidcode-tester service/liquidcode-tester-gateway 8080:80
+```
+
+## Scaling Workers
+
+```bash
+# Scale C++ workers
+kubectl scale deployment liquidcode-tester-worker-cpp -n liquidcode-tester --replicas=5
+```
+
+## Cleanup
+
+```bash
+# Delete all resources
+kubectl delete namespace liquidcode-tester
+```
+
+## Production Considerations
+
+1. **Image Registry**: Push images to a container registry (Docker Hub, GCR, ECR, etc.)
+2. **Resource Limits**: Adjust CPU/Memory limits based on workload
+3. **Persistent Storage**: Add PersistentVolumes for package storage if needed
+4. **Monitoring**: Add Prometheus/Grafana for metrics
+5. **Logging**: Configure centralized logging (ELK, Loki, etc.)
+6. **Security**:
+   - Use NetworkPolicies to restrict traffic
+   - Enable Pod Security Standards
+   - Use secrets for sensitive data
+   - Consider using a service mesh (Istio, Linkerd)
+7. **Autoscaling**: Configure HorizontalPodAutoscaler for workers
+8. **Ingress**: Use Ingress controller instead of LoadBalancer for production

k8s/configmap.yaml

@@ -0,0 +1,37 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: liquidcode-tester-config
+  namespace: liquidcode-tester
+data:
+  gateway.appsettings.json: |
+    {
+      "Logging": {
+        "LogLevel": {
+          "Default": "Information",
+          "Microsoft.AspNetCore": "Warning"
+        }
+      },
+      "AllowedHosts": "*",
+      "PackageDownloadDirectory": "/tmp/packages",
+      "Workers": {
+        "Cpp": "http://liquidcode-tester-worker-cpp:8080",
+        "Java": "http://liquidcode-tester-worker-java:8080",
+        "Kotlin": "http://liquidcode-tester-worker-kotlin:8080",
+        "CSharp": "http://liquidcode-tester-worker-csharp:8080"
+      }
+    }
+  worker.appsettings.json: |
+    {
+      "Logging": {
+        "LogLevel": {
+          "Default": "Information",
+          "Microsoft.AspNetCore": "Warning"
+        }
+      },
+      "AllowedHosts": "*",
+      "Cpp": {
+        "Compiler": "g++",
+        "CompilerFlags": "-O2 -std=c++17 -Wall"
+      }
+    }

k8s/gateway-deployment.yaml

@@ -0,0 +1,63 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: liquidcode-tester-gateway
+  namespace: liquidcode-tester
+  labels:
+    app: gateway
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: gateway
+  template:
+    metadata:
+      labels:
+        app: gateway
+    spec:
+      containers:
+      - name: gateway
+        image: liquidcode-tester-gateway:latest
+        imagePullPolicy: IfNotPresent
+        ports:
+        - containerPort: 8080
+          name: http
+        env:
+        - name: ASPNETCORE_ENVIRONMENT
+          value: "Production"
+        - name: Workers__Cpp
+          value: "http://liquidcode-tester-worker-cpp:8080"
+        resources:
+          requests:
+            memory: "128Mi"
+            cpu: "100m"
+          limits:
+            memory: "512Mi"
+            cpu: "500m"
+        livenessProbe:
+          httpGet:
+            path: /api/tester/health
+            port: 8080
+          initialDelaySeconds: 10
+          periodSeconds: 30
+        readinessProbe:
+          httpGet:
+            path: /api/tester/health
+            port: 8080
+          initialDelaySeconds: 5
+          periodSeconds: 10
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: liquidcode-tester-gateway
+  namespace: liquidcode-tester
+spec:
+  type: LoadBalancer
+  selector:
+    app: gateway
+  ports:
+  - port: 80
+    targetPort: 8080
+    protocol: TCP
+    name: http

k8s/namespace.yaml

@@ -0,0 +1,4 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: liquidcode-tester

k8s/worker-cpp-deployment.yaml

@@ -0,0 +1,82 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: liquidcode-tester-worker-cpp
+  namespace: liquidcode-tester
+  labels:
+    app: worker-cpp
+    language: cpp
+spec:
+  replicas: 3
+  selector:
+    matchLabels:
+      app: worker-cpp
+  template:
+    metadata:
+      labels:
+        app: worker-cpp
+        language: cpp
+    spec:
+      containers:
+      - name: worker-cpp
+        image: liquidcode-tester-worker-cpp:latest
+        imagePullPolicy: IfNotPresent
+        ports:
+        - containerPort: 8080
+          name: http
+        env:
+        - name: ASPNETCORE_ENVIRONMENT
+          value: "Production"
+        - name: Cpp__Compiler
+          value: "g++"
+        - name: Cpp__CompilerFlags
+          value: "-O2 -std=c++17 -Wall"
+        resources:
+          requests:
+            memory: "256Mi"
+            cpu: "200m"
+          limits:
+            memory: "2Gi"
+            cpu: "1000m"
+        livenessProbe:
+          httpGet:
+            path: /api/test/health
+            port: 8080
+          initialDelaySeconds: 10
+          periodSeconds: 30
+        readinessProbe:
+          httpGet:
+            path: /api/test/health
+            port: 8080
+          initialDelaySeconds: 5
+          periodSeconds: 10
+        # Security context for isolation
+        securityContext:
+          allowPrivilegeEscalation: false
+          runAsNonRoot: true
+          runAsUser: 1000
+          capabilities:
+            drop:
+              - ALL
+          readOnlyRootFilesystem: false
+        volumeMounts:
+        - name: tmp
+          mountPath: /tmp
+      volumes:
+      - name: tmp
+        emptyDir: {}
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: liquidcode-tester-worker-cpp
+  namespace: liquidcode-tester
+spec:
+  type: ClusterIP
+  selector:
+    app: worker-cpp
+  ports:
+  - port: 8080
+    targetPort: 8080
+    protocol: TCP
+    name: http

src/LiquidCode.Tester.Common/Dockerfile

@@ -1,21 +0,0 @@
-FROM mcr.microsoft.com/dotnet/runtime:9.0 AS base
-USER $APP_UID
-WORKDIR /app
-
-FROM mcr.microsoft.com/dotnet/sdk:9.0 AS build
-ARG BUILD_CONFIGURATION=Release
-WORKDIR /src
-COPY ["src/LiquidCode.Tester.Common/LiquidCode.Tester.Common.csproj", "src/LiquidCode.Tester.Common/"]
-RUN dotnet restore "src/LiquidCode.Tester.Common/LiquidCode.Tester.Common.csproj"
-COPY . .
-WORKDIR "/src/src/LiquidCode.Tester.Common"
-RUN dotnet build "./LiquidCode.Tester.Common.csproj" -c $BUILD_CONFIGURATION -o /app/build
-
-FROM build AS publish
-ARG BUILD_CONFIGURATION=Release
-RUN dotnet publish "./LiquidCode.Tester.Common.csproj" -c $BUILD_CONFIGURATION -o /app/publish /p:UseAppHost=false
-
-FROM base AS final
-WORKDIR /app
-COPY --from=publish /app/publish .
-ENTRYPOINT ["dotnet", "LiquidCode.Tester.Common.dll"]

src/LiquidCode.Tester.Gateway/Dockerfile

@@ -1,16 +1,25 @@
 FROM mcr.microsoft.com/dotnet/aspnet:9.0 AS base
-USER $APP_UID
 WORKDIR /app
 EXPOSE 8080
-EXPOSE 8081
 
 FROM mcr.microsoft.com/dotnet/sdk:9.0 AS build
 ARG BUILD_CONFIGURATION=Release
 WORKDIR /src
-COPY ["LiquidCode.Tester.Gateway/LiquidCode.Tester.Gateway.csproj", "LiquidCode.Tester.Gateway/"]
+
-RUN dotnet restore "LiquidCode.Tester.Gateway/LiquidCode.Tester.Gateway.csproj"
+# Copy Common project
+COPY ["src/LiquidCode.Tester.Common/LiquidCode.Tester.Common.csproj", "src/LiquidCode.Tester.Common/"]
+
+# Copy Gateway project
+COPY ["src/LiquidCode.Tester.Gateway/LiquidCode.Tester.Gateway.csproj", "src/LiquidCode.Tester.Gateway/"]
+
+# Restore dependencies
+RUN dotnet restore "src/LiquidCode.Tester.Gateway/LiquidCode.Tester.Gateway.csproj"
+
+# Copy all source files
 COPY . .
-WORKDIR "/src/LiquidCode.Tester.Gateway"
+
+# Build
+WORKDIR "/src/src/LiquidCode.Tester.Gateway"
 RUN dotnet build "./LiquidCode.Tester.Gateway.csproj" -c $BUILD_CONFIGURATION -o /app/build
 
 FROM build AS publish
@@ -20,4 +29,10 @@ RUN dotnet publish "./LiquidCode.Tester.Gateway.csproj" -c $BUILD_CONFIGURATION
 FROM base AS final
 WORKDIR /app
 COPY --from=publish /app/publish .
+
+# Create directory for package downloads
+RUN mkdir -p /tmp/packages
+
+ENV ASPNETCORE_URLS=http://+:8080
+
 ENTRYPOINT ["dotnet", "LiquidCode.Tester.Gateway.dll"]

src/LiquidCode.Tester.Worker/Dockerfile

@@ -1,21 +1,47 @@
-FROM mcr.microsoft.com/dotnet/runtime:9.0 AS base
+# Build stage
-USER $APP_UID
-WORKDIR /app
-
 FROM mcr.microsoft.com/dotnet/sdk:9.0 AS build
 ARG BUILD_CONFIGURATION=Release
 WORKDIR /src
+
+# Copy Common project
+COPY ["src/LiquidCode.Tester.Common/LiquidCode.Tester.Common.csproj", "src/LiquidCode.Tester.Common/"]
+
+# Copy Worker project
 COPY ["src/LiquidCode.Tester.Worker/LiquidCode.Tester.Worker.csproj", "src/LiquidCode.Tester.Worker/"]
+
+# Restore dependencies
 RUN dotnet restore "src/LiquidCode.Tester.Worker/LiquidCode.Tester.Worker.csproj"
+
+# Copy all source files
 COPY . .
+
+# Build
 WORKDIR "/src/src/LiquidCode.Tester.Worker"
 RUN dotnet build "./LiquidCode.Tester.Worker.csproj" -c $BUILD_CONFIGURATION -o /app/build
 
+# Publish stage
 FROM build AS publish
 ARG BUILD_CONFIGURATION=Release
 RUN dotnet publish "./LiquidCode.Tester.Worker.csproj" -c $BUILD_CONFIGURATION -o /app/publish /p:UseAppHost=false
 
-FROM base AS final
+# Final stage - use aspnet runtime with C++ compiler
+FROM mcr.microsoft.com/dotnet/aspnet:9.0 AS final
 WORKDIR /app
+
+# Install C++ compiler and build tools
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+    g++ \
+    gcc \
+    make \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy published app
 COPY --from=publish /app/publish .
+
+# Create temp directory for compilation and testing
+RUN mkdir -p /tmp/testing
+
+ENV ASPNETCORE_URLS=http://+:8080
+
 ENTRYPOINT ["dotnet", "LiquidCode.Tester.Worker.dll"]