Add Google Analytics integration

charts/xslt-playground/README.md

@@ -22,8 +22,9 @@ Key parameters in `values.yaml`:
     The frontend reads this variable at runtime so changing the deployment does
     not require rebuilding the image. When empty it defaults to the internal
     backend service URL.
-- `adsTxt` – optional content for an `ads.txt` file served by the frontend pod.
-- `hpa` – enable CPU-based autoscaling for both deployments.
+  - `frontend.googleAnalyticsId` – sets `VITE_GA_ID` to enable Google Analytics.
+  - `adsTxt` – optional content for an `ads.txt` file served by the frontend pod.
+  - `hpa` – enable CPU-based autoscaling for both deployments.
 
 When `firebase.enabled` is true you must create the secret before installing the chart:
 

charts/xslt-playground/templates/frontend-deployment.yaml

@@ -30,6 +30,10 @@ spec:
                   name: {{ .Values.firebase.secretName }}
                   key: {{ .Values.firebase.configKey }}
 {{- end }}
+{{- if .Values.frontend.googleAnalyticsId }}
+            - name: VITE_GA_ID
+              value: {{ .Values.frontend.googleAnalyticsId | quote }}
+{{- end }}
 {{- if .Values.adsTxt }}
           volumeMounts:
             - name: ads

charts/xslt-playground/values.yaml

@@ -62,6 +62,8 @@ frontend:
   # URL used by the frontend to reach the backend. Defaults to the
   # internal service URL when empty.
   backendUrl: ""
+  # Optional Google Analytics measurement ID
+  googleAnalyticsId: ""
 
 # Content for the optional ads.txt file served by the frontend
 adsTxt: ""