Centralized logging support with OpenTelemetry and Serilog

Question

I am currently using a centralized configuration for OpenTelemetry logging. This configuration is then called at startup from every single service directly in Program.cs

With this configuration I am able to send every log to an otel collector instance that I have configured.

private static IServiceCollection AddTelemetryLogging(this IServiceCollection services, ISystemConfiguration systemConfiguration) {
    IOpenTelemetryObservabilityConfiguration otelConfiguration = systemConfiguration.GetOtelConfiguration();

    services.AddLogging(loggingBuilder => {
        var resourceBuilder = ResourceBuilder
            .CreateDefault()
            .AddService(otelConfiguration.ServiceName);
        loggingBuilder.ClearProviders();
        loggingBuilder.AddConsole();
        loggingBuilder.AddDebug();
        loggingBuilder
            .AddOpenTelemetry(options => {
                options
                    .SetResourceBuilder(resourceBuilder)
                    .AddOtlpExporter(options => {
                        options.Endpoint = new Uri(otelConfiguration.CollectorUri);
                        options.ExportProcessorType = ExportProcessorType.Batch;
                        options.Protocol = OpenTelemetry.Exporter.OtlpExportProtocol.Grpc;
                    })
                    .IncludeScopes = true;
            });
    });
    return services;
}

I would like now to introduce Serilog to make use of additional features it offers. Is it possible to maintain my configuration centralized by only add the necessary code to this method?

Answer 1

You could use Serilog.Sinks.OpenTelemetry https://github.com/serilog/serilog-sinks-opentelemetry

    private static IServiceCollection AddTelemetryLogging(this IServiceCollection services, ISystemConfiguration systemConfiguration)
    {
        IOpenTelemetryObservabilityConfiguration otelConfiguration = systemConfiguration.GetOtelConfiguration();
     
        // Create Serilog Logger
        Log.Logger = new LoggerConfiguration()
            .WriteTo.Console()
            .WriteTo.Debug()
            .WriteTo.OpenTelemetry(options =>
            {
                options.Endpoint = new Uri(otelConfiguration.CollectorUri);
                options.Protocol = OtlpProtocol.Grpc;
            })
            .CreateLogger();
        services.AddSerilog(Log.Logger);

        return services;
    }

(Also installed Serilog.Sinks.Console Serilog.AspNetCore