Tracing: Deprecate opentracing (#50058)

* Deprecate opentracing

* Fix comment

* Adjust comment

* Fix docs for opentelemetry

* Add deprecated to sample.ini

docs/sources/administration/configuration.md

@@ -1445,6 +1445,8 @@ Default is https://grafana.com.
 
 ## [tracing.jaeger]
 
+[Deprecated - use tracing.opentelemetry.jaeger or tracing.opentelemetry.otlp instead]
+
 Configure Grafana's Jaeger client for distributed tracing.
 
 You can also use the standard `JAEGER_*` environment variables to configure
@@ -1508,6 +1510,34 @@ Setting this to `true` turns off shared RPC spans. Leaving this available is the
 
 <hr>
 
+## [tracing.opentelemetry.jaeger]
+
+Configure Grafana's Jaeger client for distributed tracing.
+
+### address
+
+The host:port destination for reporting spans. (ex: `localhost:14268/api/traces`)
+
+### propagation
+
+The propagation specifies the text map propagation format.(ex: jaeger, w3c)
+
+<hr>
+
+## [tracing.opentelemetry.otlp]
+
+Configure Grafana's otlp client for distributed tracing.
+
+### address
+
+The host:port destination for reporting spans. (ex: `localhost:4317`)
+
+### propagation
+
+The propagation specifies the text map propagation format.(ex: jaeger, w3c)
+
+<hr>
+
 ## [external_image_storage]
 
 These options control how images should be made public so they can be shared on services like Slack or email message.