Document detail about headless Services

2023-02-23 20:25:59 +00:00 · 2023-02-23 20:25:59 +00:00 · 9c26f03b3f
parent 2516bc2a59
commit 9c26f03b3f
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--- a/content/en/docs/concepts/services-networking/service.md
+++ b/content/en/docs/concepts/services-networking/service.md
@ -1129,6 +1129,9 @@ either:
  * For IPv4 endpoints, the DNS system creates A records.
  * For IPv6 endpoints, the DNS system creates AAAA records.

+When you define a headless Service without a selector, the `port` must
+match the `targetPort`.
+
 ## Discovering services

 For clients running inside your cluster, Kubernetes supports two primary modes of