Merge pull request #38054 from sftim/20221124_redo_service_glossary_entry

Revise glossary entry for Service

Author: k8s-ci-robot

content/en/docs/concepts/services-networking/service.md

@@ -16,7 +16,7 @@ weight: 10
 
 <!-- overview -->
 
-{{< glossary_definition term_id="service" length="short" >}}
+{{< glossary_definition term_id="service" length="short" prepend="In Kubernetes, a Service is" >}}
 
 A key aim of Services in Kubernetes is that you don't need to modify your existing
 application to use an unfamiliar service discovery mechanism.

content/en/docs/reference/glossary/service.md

@@ -5,14 +5,21 @@ date: 2018-04-12
 full_link: /docs/concepts/services-networking/service/
 short_description: >
   A way to expose an application running on a set of Pods as a network service.
-
-aka:
 tags:
 - fundamental
 - core-object
 ---
-An abstract way to expose an application running on a set of {{< glossary_tooltip text="Pods" term_id="pod" >}} as a network service.
+A method for exposing a network application that is running as one or more
+{{< glossary_tooltip text="Pods" term_id="pod" >}} in your cluster.
 
 <!--more-->
 
- The set of Pods targeted by a Service is (usually) determined by a {{< glossary_tooltip text="selector" term_id="selector" >}}. If more Pods are added or removed, the set of Pods matching the selector will change. The Service makes sure that network traffic can be directed to the current set of Pods for the workload.
+The set of Pods targeted by a Service is (usually) determined by a
+{{< glossary_tooltip text="selector" term_id="selector" >}}. If more Pods are added or removed,
+the set of Pods matching the selector will change. The Service makes sure that network traffic
+can be directed to the current set of Pods for the workload.
+
+Kubernetes Services either use IP networking (IPv4, IPv6, or both), or reference an external name in
+the Domain Name System (DNS).
+
+The Service abstraction enables other mechanisms, such as Ingress and Gateway.