Joseph Doherty
51 lines
2.4 KiB
C#
51 lines
2.4 KiB
C#
using Microsoft.Extensions.Configuration;
|
|
using ZB.MOM.WW.OtOpcUa.Commons.Observability;
|
|
using ZB.MOM.WW.Telemetry;
|
|
|
|
namespace ZB.MOM.WW.OtOpcUa.Host.Observability;
|
|
|
|
/// <summary>
|
|
/// Wires the OtOpcUa Meter + ActivitySource into OpenTelemetry and exposes a Prometheus
|
|
/// scrape endpoint at <c>/metrics</c> on the host pipeline. F13d slice — only the meter +
|
|
/// activity source declared in <see cref="OtOpcUaTelemetry"/> are surfaced; per-Akka
|
|
/// internals + ASP.NET request metrics stay off by default to keep the scrape payload
|
|
/// scoped to OtOpcUa-owned signals.
|
|
/// </summary>
|
|
public static class ObservabilityExtensions
|
|
{
|
|
/// <summary>Adds OtOpcUa observability (metrics and tracing) to the service collection.</summary>
|
|
/// <param name="services">The service collection to add observability services to.</param>
|
|
/// <param name="configuration">
|
|
/// Configuration read for the opt-in OTLP exporter. <c>OtOpcUa:Telemetry:Exporter</c>
|
|
/// (parsed case-insensitively to <see cref="ZbExporter"/>) switches to OTLP when set to
|
|
/// <c>Otlp</c>; <c>OtOpcUa:Telemetry:OtlpEndpoint</c> sets the OTLP endpoint. With no
|
|
/// config the exporter stays Prometheus (the default).
|
|
/// </param>
|
|
public static IServiceCollection AddOtOpcUaObservability(this IServiceCollection services, IConfiguration configuration)
|
|
{
|
|
return services.AddZbTelemetry(o =>
|
|
{
|
|
o.ServiceName = "otopcua";
|
|
o.Meters = [OtOpcUaTelemetry.MeterName];
|
|
o.ActivitySources = [OtOpcUaTelemetry.ActivitySourceName];
|
|
if (Enum.TryParse<ZbExporter>(configuration["OtOpcUa:Telemetry:Exporter"], ignoreCase: true, out var exporter))
|
|
o.Exporter = exporter;
|
|
var otlp = configuration["OtOpcUa:Telemetry:OtlpEndpoint"];
|
|
if (!string.IsNullOrWhiteSpace(otlp))
|
|
o.OtlpEndpoint = otlp;
|
|
});
|
|
}
|
|
|
|
/// <summary>
|
|
/// Mounts the Prometheus scrape endpoint on the existing ASP.NET pipeline. Call after
|
|
/// <c>app.UseAuthentication/UseAuthorization</c> if metrics access should require auth;
|
|
/// the default leaves it unauthenticated for local Prometheus scrapes.
|
|
/// </summary>
|
|
/// <param name="app">The endpoint route builder.</param>
|
|
public static IEndpointRouteBuilder MapOtOpcUaMetrics(this IEndpointRouteBuilder app)
|
|
{
|
|
app.MapZbMetrics();
|
|
return app;
|
|
}
|
|
}
|