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
｜
133
任何
API
类型都必须实现正确的深拷贝逻辑，因此
Foo
字段也必须能被正确
的深拷贝。如果不往
Foo
接口中添加一个
DeepCopyFoo() Foo
，怎样才能以一
种通用的方式（不经过类型转换）实现深拷贝呢？
type Foo interface {
...
DeepCopyFoo() Foo
}
在这种情况下，也可以使用与先前相同的标签：
// +k8s:deepcopy-gen:interfaces=<package>.Foo
type FooImplementation struct {
...
}
除此之外，在
Kubernetes
的源代码中，还有一些不是
runtime.Object
的情况
下也使用了这个标签：
// +k8s:deepcopy-gen:interfaces=.../pkg/registry/rbac/reconciliation.RuleOwner
// +k8s:deepcopy-gen:interfaces=.../pkg/registry/rbac/reconciliation.RoleBinding
5.3.5 client-gen
标签
最后，还有一些标签是用于控制
client-gen
的，其中的一个我们在先前的
At
和
AtList
的例子中出现过：
// +genclient
这个标签是用于告诉
client-gen
需要为这个类型创建一个客户端（这个行为
仅当指定对相应的标签后才会实施）。注意，你不需要也不能把这个标签用
于
API
对象所对应的
List
类型上。 ...
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