Information about collecting traces (#4992)

* Information about collecting traces

* Updates to the sub-section name and content

Author: rnishtala-sumo

docs/send-data/kubernetes/troubleshoot-collection.md

@@ -696,6 +696,33 @@ Then, look at the Sumo Logic Mock logs:
 2024-02-13T14:19:56.412Z DEBUG [sumologic_mock::router::otlp] Span => name: ancestor-7, span_id: 34b7b7f27d6a9d86, parent_span_id: 2ef9759def53f709, trace_id: f7563cc4ef721e1d14974eea71e20b55
 ```
 
+### Auto-instrumentation (tracing)
+
+The environment variables injected into a pod by Java auto-instrumentation are shown below.
+
+```yaml
+Environment:
+      OTEL_NODE_IP:                         (v1:status.hostIP)
+      OTEL_POD_IP:                          (v1:status.podIP)
+      OTEL_METRICS_EXPORTER:               otlp
+      OTEL_TRACES_EXPORTER:                otlp
+      OTEL_EXPORTER_OTLP_PROTOCOL:         http/protobuf
+      OTEL_EXPORTER_OTLP_ENDPOINT:         http://sumo-sumologic-otelagent.observability:4318
+      JAVA_TOOL_OPTIONS:                    -javaagent:/otel-auto-instrumentation-java/javaagent.jar
+      OTEL_APPLICATION_NAMESPACE_NAME:     default
+      OTEL_SERVICE_NAME:                   java-app
+      OTEL_RESOURCE_ATTRIBUTES_POD_NAME:   java-app-58cdff4f7b-2zv5q (v1:metadata.name)
+      OTEL_RESOURCE_ATTRIBUTES_NODE_NAME:   (v1:spec.nodeName)
+      OTEL_PROPAGATORS:                    tracecontext,baggage
+      OTEL_RESOURCE_ATTRIBUTES:            application=default,k8s.container.name=javaapp,k8s.deployment.name=java-app,k8s.namespace.name=default,k8s.node.name=$(OTEL_RESOURCE_ATTRIBUTES_NODE_NAME),k8s.pod.name=$(OTEL_RESOURCE_ATTRIBUTES_POD_NAME),k8s.replicaset.name=java-app-58cdff4f7b,service.instance.id=default.$(OTEL_RESOURCE_ATTRIBUTES_POD_NAME).javaapp,service.version=main
+```
+
+:::note
+Ensure that the `OTEL_EXPORTER_OTLP_ENDPOINT` environment variable is set to `http://sumo-sumologic-otelagent.observability:4318` to allow proper communication with the OpenTelemetry Collector.
+
+Where `sumo` is the release name and `observability` is the release namespace.
+:::
+
 ## Collecting events
 
 ### Check events body