docs/IMPLEMENTATION.md

@@ -102,90 +102,13 @@
 - [X] Verify server successfully handles slow writer attacks
 - [X] Test end-to-end client-server communication flow
 
-## Phase 8: Basic Server Architecture
-- [ ] Set up metrics collection (prometheus)
-- [ ] Create configuration management
-- [ ] Integrate all components into server architecture
+## Phase 8: Server Instrumentation & Configuration
+- [ ] Add `/metrics` HTTP endpoint for Prometheus collection
+- [ ] Add `/debug/pprof` endpoint for performance profiling
+- [ ] Create Dockerfile to build server image
+- [ ] Implement configuration management using cleanenv library
+- [ ] Read configuration from file with environment variable support
 
-## Phase 9: Advanced Server Features
-- [ ] Add connection pooling and advanced connection management
-- [ ] Implement graceful shutdown mechanism
-- [ ] Add health check endpoints
-- [ ] Add request/response logging middleware
-- [ ] Create health check endpoints
-- [ ] Write integration tests for server core
-
-## Phase 10: DDOS Protection & Rate Limiting
-- [ ] Implement IP-based connection limiting
-- [ ] Create rate limiting service with time windows
-- [ ] Add automatic difficulty adjustment based on load
-- [ ] Implement temporary IP blacklisting
-- [ ] Create circuit breaker for overload protection
-- [ ] Add monitoring for attack detection
-- [ ] Write tests for protection mechanisms
-
-## Phase 11: Observability & Monitoring
-- [ ] Add structured logging throughout application
-- [ ] Implement metrics for key performance indicators:
-  - [ ] Active connections count
-  - [ ] Challenge generation rate
-  - [ ] Solution verification rate
-  - [ ] Success/failure ratios
-  - [ ] Response time histograms
-- [ ] Create logging middleware for request tracing
-- [ ] Add error categorization and reporting
-- [ ] Implement health check endpoints
-
-## Phase 12: Configuration & Environment Setup
-- [ ] Create configuration structure with validation
-- [ ] Support environment variables and config files
-- [ ] Add configuration for different environments (dev/prod)
-- [ ] Implement feature flags for protection levels
-- [ ] Create deployment configuration templates
-- [ ] Add configuration validation and defaults
-
-## Phase 13: Docker & Deployment
-- [ ] Create multi-stage Dockerfile for server
-- [ ] Create Dockerfile for client
-- [ ] Create docker-compose.yml for local development
-- [ ] Add docker-compose for production deployment
-- [ ] Create health check scripts for containers
-- [ ] Add environment-specific configurations
-- [ ] Create deployment documentation
-
-## Phase 14: Testing & Quality Assurance
-- [ ] Write comprehensive unit tests (>80% coverage):
-  - [ ] PoW algorithm tests
-  - [ ] Protocol handler tests
-  - [ ] Rate limiting tests
-  - [ ] Quote service tests
-  - [ ] Configuration tests
-- [ ] Create integration tests:
-  - [ ] End-to-end client-server communication
-  - [ ] Load testing scenarios
-  - [ ] Failure recovery tests
-  - [ ] DDOS protection validation
-- [ ] Add benchmark tests for performance validation
-- [ ] Create stress testing scenarios
-
-## Phase 15: Documentation & Final Polish
-- [ ] Write comprehensive README with setup instructions
-- [ ] Create API documentation for all interfaces
-- [ ] Add inline code documentation
-- [ ] Create deployment guide
-- [ ] Write troubleshooting guide
-- [ ] Add performance tuning recommendations
-- [ ] Create monitoring and alerting guide
-
-## Phase 16: Production Readiness Checklist
-- [ ] Security audit of all components
-- [ ] Performance benchmarking and optimization
-- [ ] Memory leak detection and prevention
-- [ ] Resource cleanup validation
-- [ ] Error handling coverage review
-- [ ] Logging security (no sensitive data exposure)
-- [ ] Configuration security (secrets management)
-- [ ] Container security hardening
 
 ## Directory Structure
 ```
@@ -208,13 +131,3 @@
 ├── deployments/         # Deployment configurations
 └── docs/                # Additional documentation
 ```
-
-## Success Criteria
-- [ ] Server handles 1000+ concurrent connections
-- [ ] PoW protection prevents DDOS attacks effectively
-- [ ] All tests pass with >80% code coverage
-- [ ] Docker containers build and run successfully
-- [ ] Client successfully solves challenges and receives quotes
-- [ ] Comprehensive logging and metrics in place
-- [ ] Production-ready error handling and recovery
-- [ ] Clear documentation for deployment and operation