Document jaeger tracing (#79)

Author: lukasbindreiter

assets/workflows/observability/tilebox-jaeger.png

@@ -34,10 +34,107 @@ Tilebox Workflows currently supports OpenTelemetry for tracing and logging, with
 
 ## Integrations
 
-Tilebox exports telemetry data using the [OpenTelemetry Protocol](https://opentelemetry.io/docs/specs/otlp/).
+Tilebox exports telemetry data using the [OpenTelemetry Protocol](https://opentelemetry.io/docs/specs/otlp/). This allows you to send telemetry data to any OpenTelemetry-compatible backend, such as Axiom or Jaeger.
+
+### Axiom
 
 <img src="/assets/workflows/observability/tilebox-axiom.png" alt="Tilebox is pre-integrated with Axiom" />
 
-Axiom, a cloud-based observability and telemetry platform, supports this protocol. Tilebox Workflows has built-in support for Axiom, and the examples and screenshots in this section come from this integration.
+Tilebox Workflows has built-in support for Axiom, a cloud-based observability and telemetry platform. The examples and screenshots in this section come from this integration.
+
+To get started, [sign up for a free Axiom account](https://axiom.co/), create an axiom dataset for traces and logs, and generate an API key with ingest permissions for those datasets.
+
+You can then configure Tilebox to export traces and logs to Axiom using [configure_otel_tracing_axiom](/workflows/observability/tracing#axiom) and [configure_otel_logging_axiom](/workflows/observability/logging#axiom).
+
+### Jaeger
+
+<img src="/assets/workflows/observability/tilebox-jaeger.png" alt="Tilebox works well with Jaeger" />
+
+Another popular option is [Jaeger](https://jaegertracing.io/), a popular distributed tracing system. You can use the [OpenTelemetry Collector](https://opentelemetry.io/docs/collector/) to collect telemetry data from Tilebox Workflows and export it to Jaeger.
+
+An all-in-one Jaeger environment can be spun up using Docker:
+
+```bash
+docker run --rm --name jaeger \
+    -p 5778:5778 \
+    -p 16686:16686 \
+    -p 4318:4318 \
+    jaegertracing/jaeger:2.9.0
+```
+
+You can then configure Tilebox to export traces to Jaeger using `configure_otel_tracing`.
+
+<CodeGroup>
+```python Python
+from tilebox.workflows import Client
+from tilebox.workflows.observability.tracing import configure_otel_tracing
+
+# your own workflow:
+from my_workflow import MyTask
+
+def main():
+    configure_otel_tracing(
+        # export traces to the local Jaeger instance
+        endpoint="http://localhost:4318",
+    )
+
+    # the following task runner generates traces for executed tasks and
+    # exports trace and span data to the specified endpoint
+    client = Client()
+    runner = client.runner(tasks=[MyTask])
+    runner.run_forever()
+    
+if __name__ == "__main__":
+    main()
+```
+```go Go
+package main
+
+import (
+	"context"
+	"log/slog"
+
+	"github.com/tilebox/tilebox-go/examples/workflows/opentelemetry"
+	"github.com/tilebox/tilebox-go/observability"
+	"github.com/tilebox/tilebox-go/observability/tracer"
+	"github.com/tilebox/tilebox-go/workflows/v1"
+	"go.opentelemetry.io/otel"
+)
+
+// specify a service name and version to identify the instrumenting application in traces and logs
+var service = &observability.Service{Name: "task-runner", Version: "dev"}
+
+func main() {
+	ctx := context.Background()
+
+	endpoint := "http://localhost:4318"
+
+	// Setup an OpenTelemetry trace span processor, exporting traces and spans to an OTEL compatible trace endpoint
+	tileboxTracerProvider, shutdown, err := tracer.NewOtelProvider(ctx, service, tracer.WithEndpointURL(endpoint))
+	defer shutdown(ctx)
+	if err != nil {
+		slog.Error("failed to set up otel span processor", slog.Any("error", err))
+		return
+	}
+	otel.SetTracerProvider(tileboxTracerProvider) // set the tilebox tracer provider as the global OTEL tracer provider
+
+	client := workflows.NewClient()
+
+	taskRunner, err := client.NewTaskRunner(ctx)
+	if err != nil {
+		slog.Error("failed to create task runner", slog.Any("error", err))
+		return
+	}
+
+	err = taskRunner.RegisterTasks(&MyTask{})
+	if err != nil {
+		slog.Error("failed to register tasks", slog.Any("error", err))
+		return
+	}
+
+	taskRunner.RunForever(ctx)
+}
+```
+</CodeGroup>
 
-Additionally, any other OpenTelemetry-compatible backend, such as OpenTelemetry Collector or Jaeger, can be used to collect telemetry data generated by Tilebox Workflows.
+The generated workflow traces can then be viewed in the Jaeger UI at [http://localhost:16686](http://localhost:16686).