1421c46ed4
Port Prometheus scraping and training metrics RPCs directly into api_gateway, eliminating the monitoring-service backend proxy. MonitoringServiceProxy replaced with MonitoringServiceHandler that queries Prometheus directly for training metrics, GPU stats, and active job counts. Changes: - monitoring_proxy.rs -> monitoring_handler.rs with embedded PrometheusClient - Remove MonitoringBackendConfig and setup_monitoring_proxy from server.rs - main.rs reads PROMETHEUS_URL + MONITORING_STREAM_INTERVAL instead of MONITORING_SERVICE_URL - Remove monitoring-service from backend health check list - Monitoring is always available (no graceful degradation needed) - Fix fxt build.rs compile_protos type mismatch - All 9 ported unit tests + 0 clippy warnings Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
api_gateway
API Gateway service with 6-layer authentication, RBAC, rate limiting, and gRPC proxy routing.
Key Types
ApiGatewayService-- main service implementationRoleBasedAccessControl-- RBAC authorizationRateLimiter-- 3-tier rate limiting (auth/trading/compute)CircuitBreaker-- upstream service protection
Configuration
JWT_SECRET-- JWT signing secret (min 32 chars)UPSTREAM_TRADING_URL-- trading service gRPC endpointUPSTREAM_ML_URL-- ML service gRPC endpoint
Features
mfa(default) -- multi-factor authentication support- Build without:
cargo check -p api_gateway --no-default-features --features minimal