ZH-trans: add service-account.md (#12261)

* ZH-trans: add service-account.md

* Update service-account.md

content/zh/docs/reference/glossary/service-account.md

@@ -1,4 +1,19 @@
 ---
+title: 服务账户
+id: service-account
+date: 2018-04-12
+full_link: /docs/tasks/configure-pod-container/configure-service-account/
+short_description: >
+  为在 Pod 中运行的进程提供标识。
+
+aka: 
+tags:
+- fundamental
+- core-object
+---
+
+<!--
+---
 title: Service Account
 id: service-account
 date: 2018-04-12
@@ -11,9 +26,18 @@ tags:
 - fundamental
 - core-object
 ---
+-->
+
+<!--
  Provides an identity for processes that run in a {{< glossary_tooltip text="Pod" term_id="pod" >}}.
+-->
+为在 {{< glossary_tooltip text="Pod" term_id="pod" >}} 中运行的进程提供标识。
 
 <!--more--> 
   
+<!-- 
 When processes inside Pods access the cluster, they are authenticated by the API server as a particular service account, for example, `default`. When you create a Pod, if you do not specify a service account, it is automatically assigned the default service account in the same namespace {{< glossary_tooltip text="Namespace" term_id="namespace" >}}.
+-->
+当 Pod 中的进程访问集群时，API 服务器将它们作为特定的服务帐户进行身份验证，例如 `default`。当您创建 Pod 时，如果您没有指定服务帐户，它将在相同的命名空间 {{< glossary_tooltip text="命名空间" term_id="namespace" >}} 中自动分配 default 服务账户。
+