June 2021
Intermediate to advanced
335 pages
5h 50m
Chinese
Content preview from Kubernetes编程
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client-go
基础
｜
71
DeploymentInterface
提供了该资源所支持的所有动作。这些动作大部分从名
字上就能猜出其功能，稍后我们会讨论其中一些需要做额外解释的动作。
3.3.1
状态子资源：
UpdateStatus
Deployment
还包含一个状态子资源。
UpdateStatus
通过一个独立的以
/status
结尾的
HTTP
端点提供服务。通过
/apis/apps/v1beta1/namespaces/
ns
/
deployments/
name
端点只能修改
Deployment
的规格，通过
apis/apps/v1beta1/
namespaces/ns/deployments/
name
/status
则只能修改该对象的状态字段。为规
格更新（由用户完成）和状态更新（由控制器完成）设置不同的权限是一个
很好的实践经验。
在默认情况下，
client-gen
（参考“
5.3.4 client-gen
标签”）会生成
UpdateStatus()
方法。但提供这个方法并不意味着这个资源就可以支持状态
子资源。在“
3.4.3
子资源”中开发
CRD
相关代码时，理解这一点非常重要。
3.3.2
列表与删除
使用
DeleteCollection
允许用户一次删除命名空间中的多个对象。可以在
ListOption
参数中使用字段选择器或标签选择器来定义选中哪些对象进行删除。
type ListOptions struct {
...
// A selector to restrict the list of returned ...
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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.