June 2021
Intermediate to advanced
335 pages
5h 50m
Chinese
Content preview from Kubernetes编程
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148
｜
第
6
章
}
}
在本章的后续内容中，我们还会重用这两个辅助函数以及
syncHandler()
函
数中所展示的基本业务逻辑处理流程，所以请确保你已经熟悉了这里所介绍
的细节。
注意，对于
At
资源来说，
Pod
是一个二级资源，所以控制器需要负责在必要
的时候把这些
Pod
清理掉，不然就可能会有造成孤儿
Pod
的风险。
sample-controller
是一个学习基础知识的好工具，但是大部分情况下，你只
希望关注实现业务逻辑而不想理会那些框架代码。为了实现这个目标，你可
以从两个项目中选择一个：
Kubebuilder
和
Operator SDK
。我们将看看如何分
别使用它们来实现
cnat
。
6.3 Kubebuilder
Kubernetes
特别兴趣小组（
Special Interest Group
，
SIG
）
API Machinery
所开
发和维护的
Kubebuilder
工具中包含了众多开发库，可以帮助你更加简单、高
效地开发
Operator
。要深入学习
Kubebuilder
，在线的
Kubebuilder book
是一
份很好的参考资料，它会引领你认识
Kubebuilder
的组件及用法。然而，我们
在这里将先专注于使用
Kubebuilder
实现我们的
cnat Operator
（请参考我们
Git
仓库中的相应目录）。
首先，我们要确保正确安装了所有需要的工具，包括：
dep
、
kustomize
（参考
“
7.1.3 Kustomize
”），以及
Kubebuilder
自身：
$ dep version
dep:
version ...
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