v2.1.0

Added

• Multi-Region Edge Peer Federation & WAN Sync Engine (internal/federation/):
  • Authenticated encrypted overlay tunnels using AES-256-GCM cipher with HMAC-SHA256 signature verification and a 60-second replay-prevention window for zero-trust cross-region communication (internal/federation/tunnel.go, internal/federation/tunnel_test.go).
  • Low-bandwidth delta synchronization protocol computing deterministic SHA-256 container inventory digests, transmitting gzip-compressed JSON payloads across high-latency WAN links, and tracking bandwidth savings telemetry (internal/federation/sync.go, internal/federation/sync_test.go).
  • Geo-distributed container inventory routing with spherical Haversine distance calculations, weighted latency metrics, consecutive probe failure threshold triggers, probation recovery timers, and manual failover drills (internal/federation/router.go, internal/federation/router_test.go).
  • Master Federation Engine orchestrating background WAN probes, scheduled delta sync loops, container inventory reconciliation, and alert event dispatches (internal/federation/engine.go, internal/federation/engine_test.go).
• Federation & WAN Sync REST APIs (internal/api/federation.go, internal/api/federation_test.go):
  • GET /api/federation/status: Returns local region info, peer counts, and WAN synchronization status (requires RoleViewer).
  • GET /api/federation/regions: Lists all registered edge peer regions with latency and health metrics (requires RoleViewer).
  • POST /api/federation/regions: Registers or updates an edge peer region endpoint (requires RoleAdmin).
  • DELETE /api/federation/regions: Deregisters an edge peer region by ID (requires RoleAdmin).
  • POST /api/federation/sync: Ingests and processes WAN delta sync payloads between regions (requires RoleAdmin or valid tunnel signature).
  • GET /api/federation/routes: Resolves optimal geo-routing paths for container workloads across regions (requires RoleViewer).
  • POST /api/federation/failover: Triggers manual or simulated failover drills across edge regions (requires RoleAdmin).
  • GET /api/federation/config: Retrieves federation settings with masked tunnel keys (requires RoleViewer).
  • POST /api/federation/config: Updates federation settings dynamically with parameter validation (requires RoleAdmin).
• Prometheus Metrics Exporter Extension (internal/metrics/federation.go, internal/metrics/prometheus.go):
  • Exposes dock_radar_federation_regions_total, dock_radar_federation_regions_healthy, dock_radar_federation_sync_success_total, dock_radar_federation_sync_fail_total, dock_radar_federation_wan_latency_ms, and dock_radar_federation_routes_total gauges and counters for Grafana monitoring.
• Embedded Dark-Mode Dashboard Glassmorphism UI (web/dist/index.html):
  • Header federation status badge (🌐 Federation: X Regions) with direct link to region management modal.
  • Dedicated Multi-Region Edge Peer Federation card with 5 live KPI counters (Active Regions, Healthy Peers, Avg WAN Latency, In-Flight Syncs, Routed Containers).
  • Tabbed interface switching between Edge Regions table and Geo-Distributed Container Routes table with failover trigger actions.
  • Federation Management Modal (#federation-modal) enabling peer region registration, test sync execution, failover drills, and configuration updates.
• Command-Line Flags & Environment Variables (main.go):
  • Added --federation, --federation-region, --federation-name, --federation-key, and --wan-sync-interval with matching environment variable bindings (DOCK_RADAR_FEDERATION, DOCK_RADAR_FEDERATION_REGION, DOCK_RADAR_FEDERATION_NAME, DOCK_RADAR_FEDERATION_KEY, DOCK_RADAR_WAN_SYNC_INTERVAL).