June 2021
Intermediate to advanced
335 pages
5h 50m
Chinese
Content preview from Kubernetes编程
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自动代码生成
｜
131
在这个例子中，第一个注释块中的内容是
API
文档，第二个注释块中的才是
我们指定的标签。这样做可以避免在通过某些工具为这份代码生成文档时把
标签也写入
API
文档中。
5.3.3 deepcopy-gen
标签
通常情况下，我们会使用全局
// +k8s:deepcopy-gen=package
标签默认为所
有的类型都生成深拷贝方法（参考“
5.3.1
全局标签”），也就是说，如果不
想生成就需要对相关的类型添加局部标签。不过在前面例子的代码文件中（事
实上是整个包），所有的
API
类型都需要深拷贝方法，所以我们没有使用额
外的局部标签。
如果在
API
类型包中有一个辅助结构体（为了保证
API
包的简洁，通常不鼓
励这么做），我们可以禁止为它生成深拷贝方法。比如：
// +k8s:deepcopy-gen=false
//
// Helper is a helper struct, not an API type.
type Helper struct {
...
}
5.3.4 runtime.Object
与
DeepCopyObject
还有一个与深拷贝相关的特殊标签值得一提：
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
在“
3.2 Go
语言中的
Kubernetes
对象”中，我们知道
runtime.Object
必须实
现
DeepCopyObject() runtime.Object
方法，因为
Kubernetes ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.