Add a note to docs for external-dns annotations

stefanprodan · stefanprodan · commit 6f6590774e8c · 2021-10-28T16:41:33.000+03:00
Signed-off-by: Stefan Prodan &lt;stefan.prodan@gmail.com&gt;
diff --git a/docs/gitbook/usage/how-it-works.md b/docs/gitbook/usage/how-it-works.md
@@ -184,6 +184,10 @@ spec:
         test: "test"
 ```
 
+Note that the `apex` annotations are added to both the generated Kubernetes Service and the
+generated service mesh/ingress object. This allows using external-dns with Istio `VirtualServices`
+and `TraefikServices`.
+
 Besides port mapping and metadata, the service specification can
 contain URI match and rewrite rules, timeout and retry polices:
 
