d38356efdb
Host infrastructure (WP-11–17): - StartupValidator with 19 validation rules - /health/ready endpoint with DB + Akka health checks - Akka.NET bootstrap via AkkaHostedService (HOCON config, cluster, remoting, SBR) - Serilog with SiteId/NodeHostname/NodeRole enrichment - DeadLetterMonitorActor with count tracking - CoordinatedShutdown wiring (no Environment.Exit) - Windows Service support (UseWindowsService) Central UI (WP-18–21): - Blazor Server shell with Bootstrap 5, role-aware NavMenu - Login/logout flow (LDAP auth → JWT → HTTP-only cookie) - CookieAuthenticationStateProvider with idle timeout - LDAP group mapping CRUD page (Admin role) - Route guards with Authorize attributes per role - SignalR reconnection overlay for failover Integration tests (WP-22): - Startup validation, auth flow, audit transactions, readiness gating 186 tests pass (1 skipped: LDAP integration), zero warnings.
35 lines
1.0 KiB
C#
35 lines
1.0 KiB
C#
using Microsoft.Extensions.Diagnostics.HealthChecks;
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using ScadaLink.ConfigurationDatabase;
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namespace ScadaLink.Host.Health;
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/// <summary>
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/// Health check that verifies database connectivity for Central nodes.
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/// </summary>
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public class DatabaseHealthCheck : IHealthCheck
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{
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private readonly ScadaLinkDbContext _dbContext;
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public DatabaseHealthCheck(ScadaLinkDbContext dbContext)
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{
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_dbContext = dbContext;
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}
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public async Task<HealthCheckResult> CheckHealthAsync(
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HealthCheckContext context,
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CancellationToken cancellationToken = default)
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{
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try
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{
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var canConnect = await _dbContext.Database.CanConnectAsync(cancellationToken);
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return canConnect
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? HealthCheckResult.Healthy("Database connection is available.")
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: HealthCheckResult.Unhealthy("Database connection failed.");
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}
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catch (Exception ex)
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{
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return HealthCheckResult.Unhealthy("Database connection failed.", ex);
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}
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}
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}
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