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feat(lmxproxy): phase 4 — host health monitoring, metrics, status web server

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Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Joseph Doherty
2026-03-22 00:14:40 -04:00
parent 16d1b95e9a
commit 9eb81180c0
12 changed files with 1546 additions and 12 deletions
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45
lmxproxy/src/ZB.MOM.WW.LmxProxy.Host/LmxProxyService.cs
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@@ -7,7 +7,10 @@ using ZB.MOM.WW.LmxProxy.Host.Configuration;
using ZB.MOM.WW.LmxProxy.Host.Grpc.Services;
using ZB.MOM.WW.LmxProxy.Host.MxAccess;
using ZB.MOM.WW.LmxProxy.Host.Security;
using ZB.MOM.WW.LmxProxy.Host.Health;
using ZB.MOM.WW.LmxProxy.Host.Metrics;
using ZB.MOM.WW.LmxProxy.Host.Sessions;
using ZB.MOM.WW.LmxProxy.Host.Status;
using ZB.MOM.WW.LmxProxy.Host.Subscriptions;
namespace ZB.MOM.WW.LmxProxy.Host
@@ -25,6 +28,11 @@ namespace ZB.MOM.WW.LmxProxy.Host
private SessionManager? _sessionManager;
private SubscriptionManager? _subscriptionManager;
private ApiKeyService? _apiKeyService;
private PerformanceMetrics? _performanceMetrics;
private HealthCheckService? _healthCheckService;
private DetailedHealthCheckService? _detailedHealthCheckService;
private StatusReportService? _statusReportService;
private StatusWebServer? _statusWebServer;
private Server? _grpcServer;
public LmxProxyService(LmxProxyConfiguration config)
@@ -98,14 +106,33 @@ namespace ZB.MOM.WW.LmxProxy.Host
// 8. Create SessionManager
_sessionManager = new SessionManager(inactivityTimeoutMinutes: 5);
// 9. Create gRPC service
var grpcService = new ScadaGrpcService(
_mxAccessClient, _sessionManager, _subscriptionManager);
// 9. Create performance metrics
_performanceMetrics = new PerformanceMetrics();
// 10. Create and configure interceptor
// 10. Create health check services
_healthCheckService = new HealthCheckService(_mxAccessClient, _subscriptionManager, _performanceMetrics);
_detailedHealthCheckService = new DetailedHealthCheckService(_mxAccessClient);
// 11. Create status report service
_statusReportService = new StatusReportService(
_mxAccessClient, _subscriptionManager, _performanceMetrics,
_healthCheckService, _detailedHealthCheckService);
// 12. Start status web server
_statusWebServer = new StatusWebServer(_config.WebServer, _statusReportService);
if (!_statusWebServer.Start())
{
Log.Warning("Status web server failed to start — continuing without it");
}
// 13. Create gRPC service
var grpcService = new ScadaGrpcService(
_mxAccessClient, _sessionManager, _subscriptionManager, _performanceMetrics);
// 14. Create and configure interceptor
var interceptor = new ApiKeyInterceptor(_apiKeyService);
// 11. Build and start gRPC server
// 15. Build and start gRPC server
_grpcServer = new Server
{
Services =
@@ -144,7 +171,13 @@ namespace ZB.MOM.WW.LmxProxy.Host
// 1. Stop reconnect monitor (5s wait)
_mxAccessClient?.StopMonitorLoop();
// 2. Graceful gRPC shutdown (10s timeout, then kill)
// 2. Stop status web server
_statusWebServer?.Stop();
// 3. Dispose performance metrics
_performanceMetrics?.Dispose();
// 4. Graceful gRPC shutdown (10s timeout, then kill)
if (_grpcServer != null)
{
Log.Information("Shutting down gRPC server...");