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
｜
135
使用
// +genclient:method=
的一个常见场景是为资源增加扩缩容的方法。
在“
4.3.4.2
扩缩容子资源”中，我们介绍了如何为
CR
启用
/scale
子资源。
下面的标签就可以用于生成相应的客户端方法：
// +genclient:method=GetScale,verb=get,subresource=scale,\
// result=k8s.io/api/autoscaling/v1.Scale
// +genclient:method=UpdateScale,verb=update,subresource=scale,\
// input=k8s.io/api/autoscaling/v1.Scale,result=k8s.io/api/autoscaling/v1.Scale
第一个标签用于生成获取状态用的
GetScale
方法。第二个标签用于生成设置
状态用的
UpdateScale
方法。
所有
CR
的
/scale
子资源都接收并返回
autoscaling/v1
组中的
Scale
类型的
对象。在
Kubernetes API
中，有一些资源因为历史原因会返回与自身类型不
同的对象。
5.3.6 informer-gen
和
lister-gen
informer-gen
和
lister-gen
都会处理
client-gen
的
// +genclient
标签。
没有别的需要配置的东西。所有指定了要生成客户端的类型都会自动生成
出相对应的
Informer
和
Lister
（如果是通过 ...
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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.