Merge pull request #20345 from senique/patch-2

Update names.md

Author: k8s-ci-robot

content/zh/docs/concepts/overview/working-with-objects/names.md

@@ -1,21 +1,35 @@
 ---
-title: 名称
+title: 对象名称和IDs
 content_template: templates/concept
 weight: 20
 ---
 
 {{% capture overview %}}
 
 <!--
-All objects in the Kubernetes REST API are unambiguously identified by a Name and a UID.
+Each object in your cluster has a [_Name_](#names) that is unique for that type of resource.
+Every Kubernetes object also has a [_UID_](#uids) that is unique across your whole cluster.
+
+For example, you can only have one Pod named `myapp-1234` within the same [namespace](/docs/concepts/overview/working-with-objects/namespaces/), but you can have one Pod and one Deployment that are each named `myapp-1234`.
 -->
 
-Kubernetes REST API 中的所有对象都由名称和 UID 明确标识。
+集群中的每一个对象都一个[_名称_](#名称) 来标识在同类资源中的唯一性。
+
+每个 Kubernetes 对象也有一个[_UID_](#uids) 来标识在整个集群中的唯一性。
+
+比如，在同一个[namespace](/docs/concepts/overview/working-with-objects/namespaces/)中只能命名一个名为 `myapp-1234` 的 Pod, 但是可以命名一个 Pod 和一个 Deployment 同为 `myapp-1234`.
 
 <!--
 For non-unique user-provided attributes, Kubernetes provides [labels](/docs/user-guide/labels) and [annotations](/docs/concepts/overview/working-with-objects/annotations/).
 
-See the [identifiers design doc](https://git.k8s.io/community/contributors/design-proposals/architecture/identifiers.md) for the precise syntax rules for Names and UIDs.
+See the [identifiers design doc](https://git.k8s.io/community/contributors/design-proposals/architecture/identifiers.md) for the precise syntax rules for Names and 
+
+
+
+
+
+
+.
 -->
 
 对于非唯一的用户提供的属性，Kubernetes 提供了[标签](/docs/user-guide/labels)和[注释](/docs/concepts/overview/working-with-objects/annotations/)。
@@ -28,24 +42,78 @@ See the [identifiers design doc](https://git.k8s.io/community/contributors/desig
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 <!--
-## Names1
+## Names
 -->
 
 ## 名称
 
 {{< glossary_definition term_id="name" length="all" >}}
 
 <!--
-By convention, the names of Kubernetes resources should be up to maximum length of 253 characters and consist of lower case alphanumeric characters, `-`, and `.`, but certain resources have more specific restrictions.
+Below are three types of commonly used name constraints for resources.
+-->
+
+以下是比较常见的三种资源命名约束。
+
+<!--
+### DNS Subdomain Names
+
+Most resource types require a name that can be used as a DNS subdomain name
+as defined in [RFC 1123](https://tools.ietf.org/html/rfc1123).
+This means the name must:
+
+- contain no more than 253 characters
+- contain only lowercase alphanumeric characters, '-' or '.'
+- start with an alphanumeric character
+- end with an alphanumeric character
 -->
 
-按照惯例，Kubernetes 资源的名称最大长度应为 253 个字符，由小写字母、数字、`-`和 `.` 组成，但某些资源有更具体的限制。
+### DNS 子域名
+
+某些资源类型需要一个 name 来作为一个 DNS 子域名，见定义 [RFC 1123](https://tools.ietf.org/html/rfc1123)。也就是命名必须满足如下规则：
+
+- 不能超过253个字符
+- 只能包含字母数字，以及'-' 和 '.'
+- 须以字母数字开头
+- 须以字母数字结尾
 
 <!--
-For example, here’s the configuration file with a Pod name as `nginx-demo` and a Container name as `nginx`:
+### DNS Label Names
+
+Some resource types require their names to follow the DNS
+label standard as defined in [RFC 1123](https://tools.ietf.org/html/rfc1123).
+This means the name must:
+
+- contain at most 63 characters
+- contain only lowercase alphanumeric characters or '-'
+- start with an alphanumeric character
+- end with an alphanumeric character
 -->
 
-例如，下面是一个配置文件，Pod 名为 `nginx-demo`，容器名为 `nginx`：
+### DNS 标签名称
+
+某些资源类型需要其名称遵循 DNS 标签的标准，见[RFC 1123](https://tools.ietf.org/html/rfc1123)。也就是命名必须满足如下规则：
+
+- 最多63个字符
+- 只能包含字母数字，以及'-'
+- 须以字母数字开头
+- 须以字母数字结尾
+
+<!--
+Some resource types require their names to be able to be safely encoded as a
+path segment. In other words, the name may not be "." or ".." and the name may
+not contain "/" or "%".
+-->
+
+### Path 部分名称
+
+一些用与 Path 部分的资源类型要求名称能被安全的 encode。换句话说，其名称不能含有这些字符 "."、".."、"/"或"%"。
+
+<!--
+Here’s an example manifest for a Pod named `nginx-demo`.
+-->
+
+下面是一个名为`nginx-demo`的 Pod 的配置清单：
 
 ```yaml
 apiVersion: v1
@@ -55,13 +123,39 @@ metadata:
 spec:
   containers:
   - name: nginx
-    image: nginx:1.7.9
+    image: nginx:1.14.2
     ports:
     - containerPort: 80
 ```
+{{< note >}}
+<!--
+Some resource types have additional restrictions on their names.
+-->
+
+某些资源类型可能有其相应的附加命名约束。
+
+{{< /note >}}
+
 
 ## UIDs
 
 {{< glossary_definition term_id="uid" length="all" >}}
 
+<!--
+Kubernetes UIDs are universally unique identifiers (also known as UUIDs).
+UUIDs are standardized as ISO/IEC 9834-8 and as ITU-T X.667.
+-->
+Kubernetes UIDs 是通用的唯一标识符 (也叫 UUIDs).  
+UUIDs 是标准化的，见 ISO/IEC 9834-8 和 ITU-T X.667.  
+
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+
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+<!--
+* Read about [labels](/docs/concepts/overview/working-with-objects/labels/) in Kubernetes.
+* See the [Identifiers and Names in Kubernetes](https://git.k8s.io/community/contributors/design-proposals/architecture/identifiers.md) design document.
+-->
+* 阅读关于 Kubernetes [labels](/docs/concepts/overview/working-with-objects/labels/)。  
+* 更多参见 [Kubernetes 标识符和名称设计文档](https://git.k8s.io/community/contributors/design-proposals/architecture/identifiers.md).
+
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