June 2021
Intermediate to advanced
335 pages
5h 50m
Chinese
Content preview from Kubernetes编程
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268
第
9
章
自定义资源进阶
在本章中，我们将介绍有关
CR
的进阶内容：版本（
Versioning
）、转换
（
Conversion
）和准入控制器（
Admission Controller
）。
有了多版本，
CRD
看上去才更为正式，它们与
Kubernetes
原生基于
Golang
的
API
变得更一致。当然，与此同时，开发、维护和运维的复杂度也相应地
增加了。我们把这些功能称为是“进阶”功能，因为它们把
CRD
从清单文件
（纯粹的声明式模式）带入了
Golang
的世界（成为了真正的软件开发项目）。
即使你不打算构建一个自定义
API
服务器，只是想使用
CRD
，我们仍强烈建
议你不要跳过第
8
章的内容。很多高级的
CRD
特性都在自定义
API
服务器中
有着对应的概念，并与它们的设计思路一致。学习第
8
章的内容会让你更好
地理解本章的内容。
本章中所介绍与使用的示例代码都可以从
GitHub
仓库中下载。
9.1
自定义资源版本
在第
8
章中，我们了解了如何在不同的
API
版本中使用资源。在自定义
API
服务器的例子中，
Pizza
资源既出现在
v1alpha1
版本中，也出现在
v1be t a1
版本中（见“
8.2
示例：一个披萨店”）。在自定义
API
服务器内部，请求中
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.