feat(Traefik Proxy): add tracingparameters to helm chart values

traefik/templates/_podtemplate.tpl

@@ -383,6 +383,33 @@
           - "--tracing.addinternals"
           {{- end }}
 
+          {{- with .Values.tracing }}
+            {{- with .sampleRate }}
+          - "--tracing.sampleRate={{ . }}"
+            {{- end }}
+
+            {{- with .serviceName }}
+          - "--tracing.serviceName={{ . }}"
+            {{- end }}
+
+            {{- range $name, $value := .globalAttributes }}
+          - "--tracing.globalAttributes.{{ $name }}={{ $value }}"
+            {{- end }}
+
+            {{- range $index, $value := .capturedRequestHeaders }}
+          - "--tracing.capturedRequestHeaders[{{ $index }}]={{ $value }}"
+            {{- end }}
+
+            {{- range $index, $value := .capturedResponseHeaders }}
+          - "--tracing.capturedResponseHeaders[{{ $index }}]={{ $value }}"
+            {{- end }}
+
+            {{- if .safeQueryParams }}
+          - "--tracing.safeQueryParams={{- .safeQueryParams | join "," -}}"
+            {{- end }}
+
+          {{- end }}
+
           {{- with .Values.tracing.otlp }}
           {{- if .enabled }}
           - "--tracing.otlp=true"

traefik/templates/requirements.yaml

@@ -39,3 +39,7 @@
 {{- if and (semverCompare "<3.2.0-0" $version) (.Values.providers.kubernetesGateway.nativeLBByDefault)}}
   {{- fail "ERROR: nativeLBByDefault has been introduced in Kubernetes Gateway provider in v3.2.0" }}
 {{- end }}
+
+{{- if and (semverCompare "<v3.1.0-0" $version) .Values.tracing.safeQueryParams }}
+  {{ fail "ERROR: safeQueryParams is a feature only available for traefik >= v3.1.0."}}
+{{- end }}

traefik/tests/requirements-config_test.yaml

@@ -119,3 +119,13 @@ tests:
     asserts:
       - failedTemplate:
           errorMessage: "ERROR: abortOnPluginFailure is an experimental feature only available for traefik >= v3.3.0."
+  - it: shouldn't have safeQueryParams, when enabled on traefik < 3.1.0
+    set:
+      image:
+        tag: v3.0.0
+      tracing:
+        safeQueryParams:
+         - foo
+    asserts:
+      - failedTemplate:
+          errorMessage: "ERROR: safeQueryParams is a feature only available for traefik >= v3.1.0."

traefik/tests/tracing-config_test.yaml

@@ -9,6 +9,18 @@ tests:
     set:
       tracing:
         addInternals: true
+        sampleRate: 0.5
+        serviceName: my-service-name
+        globalAttributes:
+          attr1: foo
+          attr2: bar
+        capturedRequestHeaders:
+          - X-CustomHeader
+        capturedResponseHeaders:
+          - X-CustomHeader
+        safeQueryParams:
+          - bar
+          - buz
         otlp:
           enabled: true
           http:
@@ -38,6 +50,27 @@ tests:
       - contains:
           path: spec.template.spec.containers[0].args
           content: "--tracing.addinternals"
+      - contains:
+          path: spec.template.spec.containers[0].args
+          content: "--tracing.sampleRate=0.5"
+      - contains:
+          path: spec.template.spec.containers[0].args
+          content: "--tracing.serviceName=my-service-name"
+      - contains:
+          path: spec.template.spec.containers[0].args
+          content: "--tracing.globalAttributes.attr1=foo"
+      - contains:
+          path: spec.template.spec.containers[0].args
+          content: "--tracing.globalAttributes.attr2=bar"
+      - contains:
+          path: spec.template.spec.containers[0].args
+          content: "--tracing.capturedRequestHeaders[0]=X-CustomHeader"
+      - contains:
+          path: spec.template.spec.containers[0].args
+          content: "--tracing.capturedResponseHeaders[0]=X-CustomHeader"
+      - contains:
+          path: spec.template.spec.containers[0].args
+          content: "--tracing.safeQueryParams=bar,buz"
       - contains:
           path: spec.template.spec.containers[0].args
           content: "--tracing.otlp.http=true"

traefik/values.schema.json

@@ -1571,6 +1571,16 @@
                 "addInternals": {
                     "type": "boolean"
                 },
+                "capturedRequestHeaders": {
+                    "type": "array"
+                },
+                "capturedResponseHeaders": {
+                    "type": "array"
+                },
+                "globalAttributes": {
+                    "properties": {},
+                    "type": "object"
+                },
                 "otlp": {
                     "properties": {
                         "enabled": {
@@ -1641,6 +1651,23 @@
                         }
                     },
                     "type": "object"
+                },
+                "safeQueryParams": {
+                    "type": "array"
+                },
+                "sampleRate": {
+                    "maximum": 1,
+                    "minimum": 0,
+                    "type": [
+                        "number",
+                        "null"
+                    ]
+                },
+                "serviceName": {
+                    "type": [
+                        "string",
+                        "null"
+                    ]
                 }
             },
             "type": "object"

traefik/values.yaml

@@ -535,6 +535,18 @@ metrics:
 tracing:  # @schema additionalProperties: false
   # -- Enables tracing for internal resources. Default: false.
   addInternals: false
+  # -- Service name used in selected backend. Default: traefik.
+  serviceName:  # @schema type:[string, null]
+  # -- Applies a list of shared key:value attributes on all spans.
+  globalAttributes: {}
+  # -- Defines the list of request headers to add as attributes. It applies to client and server kind spans.
+  capturedRequestHeaders: []
+  # -- Defines the list of response headers to add as attributes. It applies to client and server kind spans.
+  capturedResponseHeaders: []
+  # -- By default, all query parameters are redacted. Defines the list of query parameters to not redact.
+  safeQueryParams: []
+  # -- The proportion of requests to trace, specified between 0.0 and 1.0. Default: 1.0.
+  sampleRate:  # @schema type:[number, null]; minimum:0; maximum:1
   otlp:
     # -- See https://doc.traefik.io/traefik/v3.0/observability/tracing/opentelemetry/
     enabled: false