solution for a collector

[giuliohome]

We can't send straight to grafana, apparently, but we need an agent or a collector. That must be running on his own, hence the runtime implementation "to-do".

[giuliohome]

• For Gitlab, this is solved with a service
• For Azure Pipeline, this is solved with a docker container running on a vmImage created on the fly for the pipeline
• The missing part is the internal (e.g. dotnet api backend) tracing of the app on azure:
  • how complicated the docker compose approach (dotnet app + agent) for azure container/app services?
  • how costly is the cheapest kubernetes?
  • how much the cheapest vm (it looks like 8$ a month)
  • can be done with Azure Application Insights and Azure Monitor

[giuliohome]

The latter seems the way to go for Azure Opentelemetry.

Will try inside my Azure DevOps project.

Well, there I'll opt for Azure Insights because it is more mature

[giuliohome]

You can send opentelemetry traces to grafana cloud tempo saas without an agent or a collector: see my dotnet and python code also there.

.NET

            services.AddOpenTelemetryTracing((builder) => 
                builder
                    //https://github.com/open-telemetry/opentelemetry-dotnet/blob/main/docs/trace/customizing-the-sdk/README.md
                    .AddSource("AzureTracer")
                    .SetResourceBuilder(ResourceBuilder.CreateDefault()
                        .AddService("API.TestBed"))
                    // Instrument HttpClient calls and pass on context
                    // .AddHttpClientInstrumentation() // catching azure live diagnostic
                    .AddAspNetCoreInstrumentation()
                    .AddSqlClientInstrumentation(
                        options => options.SetDbStatementForText = true)
                    .AddConsoleExporter()
                    .AddOtlpExporter(o =>
                    {
                        o.Endpoint = new Uri("https://tempo-eu-west-0.grafana.net"); //"http://otel-collector:4317");
                        string token = "my encoded token";
                        o.Headers = $"Authorization=Basic {token}";
                        o.ExportProcessorType = ExportProcessorType.Simple;
                    }));
        }

Python

Notice that for python it is necessary to upgrade to version 1.12 of opentelemetry sdk!

pip install --upgrade opentelemetry-exporter-otlp
pip install --upgrade opentelemetry-sdk