Merge pull request #33831 from openshift-cherrypick-robot/cherry-pick-33711-to-enterprise-4.8

[enterprise-4.8] BZ1878685: Updates to Creating a route via Ingress for passthrough routes

modules/nw-ingress-creating-a-route-via-an-ingress.adoc

@@ -41,6 +41,22 @@ spec:
 as `Ingress` has no field for this. The accepted values are `edge`, `passthrough` and `reencrypt`. All
 other values are silently ignored. When unset, `edge` is used.
 
+.. If you specify the `passthrough` value in the `route.openshift.io/termination` annotation, set `path` to `''` and `pathType` to `ImplementationSpecific` in the spec:
++
+[source,yaml]
+----
+  spec:
+    rules:
+    - host: www.example.com
+      http:
+        paths:
+        - path: ''
+          pathType: ImplementationSpecific
+        - backend:
+            serviceName: frontend
+            servicePort: 443
+----
+
 +
 [source,terminal]
 ----