---
title: 证书
id: certificate
date: 2018-04-12
full_link: /docs/tasks/tls/managing-tls-in-a-cluster/
short_description: >
  证书是个安全加密文件，用来确认对 Kubernetes 集群访问的合法性。

aka: 
tags:
- security
---

<!--
---
title: Certificate
id: certificate
date: 2018-04-12
full_link: /docs/tasks/tls/managing-tls-in-a-cluster/
short_description: >
  A cryptographically secure file used to validate access to the Kubernetes cluster.

aka: 
tags:
- security
---
-->

<!--
 A cryptographically secure file used to validate access to the Kubernetes cluster.
-->

证书是个安全加密文件，用来确认对 Kubernetes 集群访问的合法性。

<!--more--> 

<!--
Certificates enable applications within a Kubernetes cluster to access the Kubernetes API securely. Certificates validate that clients are allowed to access the API.
-->

证书可以让 Kubernetes 集群中运行的应用程序安全的访问 Kubernetes API。证书可以确认客户端是否被允许访问 API。