demo-app: tracing on in k8s

manifests/demo-app/rollout.yaml

@@ -49,9 +49,15 @@ spec:
           image: ns31240276.ip-51-195-4.eu:5000/swim/demo-app:3-e9ed75d
           # Secrets Vault se aate hain - git me kabhi nahi.
           env:
-            # canary demo ke liye - har deploy par badalta hai
-            - name: ROLLOUT_DEMO
-              value: "canary-run-1"
+            # Tracing: Tempo host ke bridge IP par OTLP sunta hai
+            - name: OTEL_SDK_DISABLED
+              value: "false"
+            - name: OTEL_SERVICE_NAME
+              value: "demo-app"
+            - name: OTEL_EXPORTER_OTLP_ENDPOINT
+              value: "http://192.168.124.1:4318"
+            - name: OTEL_RESOURCE_ATTRIBUTES
+              value: "deployment.environment=k8s,service.namespace=swim"
           envFrom:
             - secretRef:
                 name: demo-app-secrets