June 2021
Intermediate to advanced
335 pages
5h 50m
Chinese
Content preview from Kubernetes编程
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client-go
基础
｜
83
你也许需要定制这些配置值以满足不同的需求，对于大部分控制器应用来说，
最大
1000
秒的退避间隔是一个很大的值。
3.5
深入
API Machinery
API Machinery
仓库中实现了
Kubernetes
的基础类型系统。什么是类型系统
呢？我们从哪种类型开始学习呢？
所谓类型其实在
API Machinery
的术语中并不存在，而是以型别（
Kind
）来代替。
3.5.1
型别
不同的型别被划分在不同的
API
组中，并且有不同的版本号，在“
2.1.2 API
术语”中我们已经了解了这一点。所以，在
API Machinery
仓库中有一个核
心的概念：
GroupVersionKind
，或者简写为
GVK
。
在
Go
语言中，每一种
GVK
对应一种
Go
语言的类型。但一种
Go
语言类型
可以用于多个不同的
GVK
。
型别不能与
HTTP
路径一一对应。很多型别都有用于访问该型别对象的
HTTP
REST
端点。但也有一些型别没有与之对应的
HTTP
端点（比如
admission.
k8s.io/v1beta1.AdmissionReview
，用于传递给
Webhook
调用）。还有些型别
可能会从多个端点返回，比如
meta.k8s.io/v1.Status
，所有的端点都可能返回
这种型别，用于汇报非对象的状态，比如出错状态。
习惯上，型别都以驼峰命名法来命名，并且名词都使用单数形式。在不同的
上下文中，它们实际的格式也不尽相同。对于自定义资源定义型别，它必须
是一个
DNS
路径标签（
RFC 1035
）。
3.5.2
资源 ...
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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.