June 2021
Intermediate to advanced
335 pages
5h 50m
Chinese
Content preview from Kubernetes编程
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62
｜
第
3
章
用程序甚至都不用关心存储对象实际使用的版本。存储版本的变化对
于
Go
代码来说是透明的。
3.2 Go
语言中的
Kubernetes
对象
在“
3.1.4
创建并使用客户端对象”中，我们学习了如何创建一个核心组对象
的客户端并访问
Kubernetes
集群中的
Pod
。在接下来的内容中，我们将更详
细地了解在
Go
语言的语境下的
Pod
（或者其他任何
Kubernetes
资源）是什么
样的。
Kubernetes
中的资源（或者更准确说是对象）都是某种型别
注
1
的实例。它们
由
API
服务器以资源的方式提供出来，并以结构体的形式来表示。根据型别
的不同，对象中具体的字段也会有所不同，不过它们都具有相同的基本结构。
从类型系统的角度来看，
Go
语言中的
Kubernetes
的对象都实现了
runtime.
Object
接口，这个接口的实现非常简单，可以从
k8s.io/apimachinery/pkg/
runtime
中找到：
// Object interface must be supported by all API types registered with Scheme.
// Since objects in a scheme are expected to be serialized to the wire, the
// interface an Object must provide to the Scheme allows serializers to set
// the kind, version, ...
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