June 2021
Intermediate to advanced
335 pages
5h 50m
Chinese
Content preview from Kubernetes编程
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304
｜
第
9
章
spec:
toppings:
- name: tomato
quantity: 1
- name: mozzarella
quantity: 1
- name: salami
quantity: 1
status: {}
太棒了！我们有了一个包含了我们所想要的配料的意大利腊肠披萨，祝您用
餐愉快！
在结束本章内容之前，我们来看一下
CRD
的下一个
apiextensions.k8s.io/
v1 API
组的版本（不是
Beta
版本，即
GA
版本）所引入的主要功能：结构化
Schema
。
9.3
结构化
Schema
与
CRD
的未来
从
Kubernetes 1.15
开始，
OpenAPI v3
的验证
Schema
（参考“
4.3.1
自定义资
源合法性验证”）在
CRD
中扮演了越来越重要的角色，如果要使用以下任意
一个新功能，就必须指定一个
Schema
：
• CRD
转换（见图
9-2
）。
•
剪裁（参考“
9.3.2
剪裁或保留不能识别的字段”）。
•
默认值（参考“
9.3.6
默认值”）。
•
发布
OpenAPI Schema
。
严格来说，定义
Schema
仍然是一个可选的操作，所有现有的
CRD
仍然可以
正常运行，但是如果没有
Schema
，就无法使用这些新功能。
另外，指定的
Schema
必须依照一些特定的规则来确保其指定的类型符合
Kubernetes API
表示法。我们把这样的
Schema
称为结构化
Schema
。
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