Initial project foundation: Microservices architecture planning

- Created CLAUDE.md with architecture guidelines and context recovery guide - Created docs/PLAN.md with progressive implementation strategy - Created docs/PROGRESS.md for checkpoint tracking - Added .gitignore for Python, Node, Docker environments - Established API Gateway pattern with Console as orchestrator 🤖 Generated with Claude Code Co-Authored-By: Claude <noreply@anthropic.com>
2025-09-10 08:56:29 +09:00
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+# Microservices Architecture Implementation Plan
+
+## Project Overview
+Build a microservices-based platform with a central Console service acting as an orchestrator and API Gateway, managing multiple domain-specific services.
+
+## Architecture Decision
+**Selected Pattern**: API Gateway Pattern with Console as the central orchestrator
+- Console handles authentication, routing, and monitoring
+- Each microservice focuses on domain-specific logic
+- Services communicate via REST APIs and Redis pub/sub
+
+## Progressive Implementation Strategy
+
+### Step-by-Step Approach
+큰 그림을 먼저 구성하고, 핵심 기능부터 점진적으로 확장하는 전략
+
+## Implementation Phases
+
+### Step 1: Minimal Foundation (Day 1-2)
+**목표**: 가장 기본적인 구조 확립
+```
+site11/
+├── docker-compose.yml     # 최소 구성 (Console만)
+├── console/
+│   └── backend/
+│       └── main.py        # Hello World API
+└── README.md
+```
+
+**Tasks**:
+- [ ] 간단한 docker-compose.yml 생성
+- [ ] Console FastAPI "Hello World"
+- [ ] 기본 health check endpoint
+- [ ] Docker로 실행 확인
+
+### Step 2: Add First Service (Day 3-4)
+**목표**: Console과 하나의 서비스 연결
+```
+site11/
+├── docker-compose.yml
+├── console/
+│   └── backend/
+│       └── main.py        # Gateway 역할 추가
+└── services/
+    └── users/
+        └── backend/
+            └── main.py    # Users 서비스
+```
+
+**Tasks**:
+- [ ] Users 서비스 생성
+- [ ] Console에서 Users로 라우팅
+- [ ] 서비스 간 통신 테스트
+- [ ] 간단한 CRUD API
+
+### Step 3: Database Integration (Day 5-6)
+**목표**: MongoDB 연결 및 기본 데이터 저장
+
+**Tasks**:
+- [ ] MongoDB 컨테이너 추가
+- [ ] Console과 Users 서비스 DB 연결
+- [ ] 기본 데이터 모델 생성
+- [ ] 실제 데이터 CRUD 테스트
+
+### Step 4: Frontend Skeleton (Week 2)
+**목표**: 최소한의 UI 구성
+
+**Tasks**:
+- [ ] Console Frontend 생성 (React + Vite)
+- [ ] 기본 레이아웃
+- [ ] 서비스 상태 표시
+- [ ] Nginx 설정
+
+### Step 5: Authentication Basic (Week 2)
+**목표**: 간단한 인증 시스템
+
+**Tasks**:
+- [ ] JWT 토큰 생성
+- [ ] Login endpoint
+- [ ] Token 검증 미들웨어
+- [ ] Protected routes
+
+### Step 6: Second Service (Week 3)
+**목표**: 두 번째 서비스 추가로 패턴 확립
+
+**Tasks**:
+- [ ] OAuth 또는 Images 서비스 추가
+- [ ] Console 라우팅 확장
+- [ ] 서비스 간 통신 패턴 확립
+- [ ] Service registry 기초
+
+### Step 7: Service Communication (Week 3)
+**목표**: 서비스 간 통신 패턴 구현
+
+**Tasks**:
+- [ ] Redis pub/sub 설정
+- [ ] Event 기반 통신 예제
+- [ ] Service discovery 구현
+- [ ] Health check 자동화
+
+### Step 8: Gradual Service Addition (Week 4-5)
+**목표**: 나머지 서비스 점진적 추가
+
+**각 서비스별로**:
+- [ ] 기본 구조 생성
+- [ ] Console 연결
+- [ ] 핵심 API 구현
+- [ ] Frontend 컴포넌트 추가
+
+## 현재 시작점 (NOW)
+
+### 즉시 시작할 수 있는 첫 걸음
+
+#### 1. 최소 Docker 환경 구성
+```bash
+# 실행 명령
+docker-compose up -d console
+curl http://localhost:8000/health
+```
+
+#### 2. Console 서비스만으로 시작
+- Health endpoint
+- 간단한 API Gateway 구조
+- 서비스 등록 준비
+
+#### 3. 하나씩 추가하며 테스트
+- Users 서비스 하나만 추가
+- 통신 확인
+- 패턴 확립 후 확장
+
+### 핵심 원칙
+1. **작동하는 코드 우선** - 완벽한 설계보다 동작하는 MVP
+2. **점진적 복잡도** - 간단한 것부터 시작해서 기능 추가
+3. **빠른 피드백** - 각 단계마다 실행하고 확인
+4. **패턴 확립** - 첫 서비스로 패턴을 만들고 복제
+
+---
+
+## 상세 구현 계획 (참고용)
+
+### Phase 1: Foundation Setup (Week 1)
+#### Goals
+- Set up project structure
+- Configure Docker environment
+- Establish basic infrastructure
+
+#### Tasks
+- [ ] Initialize Git repository
+- [ ] Create Docker Compose configuration
+- [ ] Set up Nginx reverse proxy
+- [ ] Configure MongoDB and Redis containers
+- [ ] Create base directory structure for all services
+
+#### Deliverables
+- Working Docker environment
+- Basic networking between containers
+- Database and cache ready
+
+### Phase 2: Console Service - Core (Week 2)
+#### Goals
+- Implement Console as API Gateway
+- Set up authentication system
+- Create service registry
+
+#### Tasks
+- [ ] Console Backend
+  - [ ] FastAPI application setup
+  - [ ] JWT authentication implementation
+  - [ ] Service registry and discovery
+  - [ ] API routing mechanism
+  - [ ] Health check endpoints
+- [ ] Console Frontend
+  - [ ] React + Vite setup
+  - [ ] Login/Register pages
+  - [ ] Admin dashboard layout
+  - [ ] Service status dashboard
+
+#### Deliverables
+- Working authentication system
+- Basic API Gateway functionality
+- Service health monitoring dashboard
+
+### Phase 3: OAuth Service (Week 3)
+#### Goals
+- Centralized authentication service
+- OAuth2 implementation
+- User session management
+
+#### Tasks
+- [ ] OAuth Backend
+  - [ ] OAuth2 server implementation
+  - [ ] Token generation and validation
+  - [ ] User authentication endpoints
+  - [ ] Integration with Console
+- [ ] OAuth Frontend
+  - [ ] OAuth consent screens
+  - [ ] Token management UI
+  - [ ] Application registration
+
+#### Deliverables
+- OAuth2 server
+- Token-based authentication
+- Integration with Console
+
+### Phase 4: Users Service (Week 4)
+#### Goals
+- User management microservice
+- Profile management
+- User data CRUD operations
+
+#### Tasks
+- [ ] Users Backend
+  - [ ] User model and database schema
+  - [ ] CRUD APIs for user management
+  - [ ] Profile management endpoints
+  - [ ] Integration with OAuth service
+- [ ] Users Frontend
+  - [ ] User list and search
+  - [ ] Profile editing interface
+  - [ ] User details view
+
+#### Deliverables
+- Complete user management system
+- Profile management features
+- Admin user interface
+
+### Phase 5: Core Microservices (Weeks 5-6)
+#### Goals
+- Implement remaining core services
+- Establish inter-service communication
+
+#### Services to Implement
+1. **Images Service**
+   - Image upload/download
+   - Image processing
+   - Storage management
+
+2. **Applications Service**
+   - Application registration
+   - Configuration management
+   - Version control
+
+3. **Data Service**
+   - Data import/export
+   - Data transformation
+   - API for data access
+
+4. **Statistics Service**
+   - Metrics collection
+   - Analytics dashboard
+   - Report generation
+
+#### Tasks per Service
+- [ ] Backend implementation
+  - [ ] Domain models
+  - [ ] Business logic
+  - [ ] REST APIs
+  - [ ] Event publishing
+- [ ] Frontend implementation
+  - [ ] Service-specific UI
+  - [ ] Integration with Console
+  - [ ] Dashboard widgets
+
+### Phase 6: Integration & Testing (Week 7)
+#### Goals
+- End-to-end integration
+- Performance optimization
+- Security hardening
+
+#### Tasks
+- [ ] Integration Testing
+  - [ ] Service communication tests
+  - [ ] Load testing
+  - [ ] Security testing
+- [ ] Optimization
+  - [ ] Redis caching implementation
+  - [ ] Database indexing
+  - [ ] API response optimization
+- [ ] Documentation
+  - [ ] API documentation (OpenAPI)
+  - [ ] Deployment guide
+  - [ ] Developer documentation
+
+#### Deliverables
+- Fully integrated system
+- Performance benchmarks
+- Complete documentation
+
+### Phase 7: Monitoring & DevOps (Week 8)
+#### Goals
+- Production readiness
+- Monitoring and alerting
+- CI/CD pipeline
+
+#### Tasks
+- [ ] Monitoring Setup
+  - [ ] Prometheus metrics
+  - [ ] Grafana dashboards
+  - [ ] Log aggregation (ELK stack)
+- [ ] DevOps
+  - [ ] GitHub Actions CI/CD
+  - [ ] Automated testing
+  - [ ] Docker image optimization
+- [ ] Production Configuration
+  - [ ] Environment variables
+  - [ ] Secrets management
+  - [ ] Backup strategies
+
+#### Deliverables
+- Production-ready deployment
+- Monitoring dashboards
+- Automated deployment pipeline
+
+## Technical Implementation Details
+
+### Service Communication Flow
+```
+Client Request → Nginx → Console (API Gateway) → Microservice
+                           ↓
+                    Authentication Check
+                           ↓
+                    Request Routing
+                           ↓
+                    Response Aggregation
+```
+
+### Database Strategy
+```
+MongoDB Instance
+├── console_db       # Console service data
+├── users_db         # Users service data
+├── oauth_db         # OAuth tokens and sessions
+├── images_db        # Image metadata
+├── applications_db  # Application data
+├── data_db          # Generic data storage
+└── statistics_db    # Analytics data
+```
+
+### API Versioning Strategy
+- All APIs follow `/api/v1/` pattern
+- Version in URL path for major versions
+- Header-based versioning for minor updates
+
+### Security Implementation
+1. **Authentication Flow**
+   - User login → OAuth service
+   - OAuth service issues JWT
+   - Console validates JWT on each request
+   - Console forwards validated requests to services
+
+2. **Service-to-Service Auth**
+   - Internal service tokens
+   - mTLS for production
+   - Network isolation via Docker networks
+
+### Development Workflow
+1. **Local Development**
+   ```bash
+   docker-compose up -d [service-name]
+   docker-compose logs -f [service-name]
+   ```
+
+2. **Testing**
+   ```bash
+   docker-compose exec [service-name] pytest
+   ```
+
+3. **Deployment**
+   ```bash
+   docker-compose build
+   docker-compose up -d
+   ```
+
+## Success Criteria
+- [ ] All services independently deployable
+- [ ] Console successfully routes to all services
+- [ ] Authentication works across all services
+- [ ] Health monitoring shows all services green
+- [ ] Load testing shows <100ms p95 latency
+- [ ] Zero downtime deployments possible
+
+## Risk Mitigation
+1. **Service Failure**: Circuit breakers in Console
+2. **Data Consistency**: Event sourcing for critical operations
+3. **Performance**: Redis caching layer
+4. **Security**: Regular security audits, dependency updates
+
+## Timeline Summary
+- **Week 1**: Foundation and infrastructure
+- **Week 2**: Console core implementation
+- **Week 3**: OAuth service
+- **Week 4**: Users service
+- **Weeks 5-6**: Remaining microservices
+- **Week 7**: Integration and testing
+- **Week 8**: Monitoring and production setup
+
+## Next Steps
+1. Review and approve plan
+2. Set up Git repository
+3. Begin Phase 1 implementation
+4. Schedule weekly progress reviews