Upgrade to OpenTelemetry Semantic Conventions v1.26.0

docs/content/observability/tracing/opentelemetry.md

@@ -5,6 +5,8 @@ description: "Traefik supports several tracing backends, including OpenTelemetry
 
 # OpenTelemetry
 
+Traefik Proxy follows [official OpenTelemetry semantic conventions v1.26.0](https://github.com/open-telemetry/semantic-conventions/blob/v1.26.0/docs/http/http-spans.md).
+
 To enable the OpenTelemetry tracer:
 
 ```yaml tab="File (YAML)"

docs/content/observability/tracing/overview.md

@@ -160,3 +160,28 @@ tracing:
 ```bash tab="CLI"
 --tracing.capturedResponseHeaders[0]=X-CustomHeader
 ```
+
+#### `safeQueryParams`
+
+_Optional, Default={}_
+
+By default, all query parameters are redacted.
+Defines the list of query parameters to not redact.
+
+```yaml tab="File (YAML)"
+tracing:
+  otlp:
+    safeQueryParams:
+      - bar
+      - buz
+```
+
+```toml tab="File (TOML)"
+[tracing]
+  [tracing.otlp]
+    safeQueryParams = ["bar", "buz"]
+```
+
+```bash tab="CLI"
+--tracing.otlp.safeQueryParams=bar,buz
+```