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O'Reilly Platform
book
Kubernetes即学即用(第二版)
by
Brendan Burns
,
Joe Beda
,
Kelsey Hightower
June 2021
Intermediate to advanced
300 pages
5h 4m
Chinese
China Electric Power Press Ltd.
Content preview from
Kubernetes即学即用(第二版)
120
|
第
8
章
Ingress
中的许多功能都没有充分定义。实现可以通过各种不同的方式来提供
这些功能,因此各个实现之间配置的可移植性很低。
另一个问题在于
Ingress
的配置很容易出错。多个对象组合在一起的方式会
导致冲突,而各个实现解决冲突的方式不尽相同。此外,跨命名空间合并
Ingress
的方式破坏了命名空间隔离的思想。
Ingress
的出现远早于服务网格(如
Istio
和
Linkerd
等项目)概念的流行。人
们仍在讨论
Ingress
与服务网格重叠的部分应当如何处理。
社区中浮现了很多伟大的想法。例如,
Istio
实现了网关的概念(在某些方面
与
Ingress
有重叠)。
Contour
引入了一种名叫
IngressRoute
的新类型,这个
版本的
Ingress
受到了
DNS
等其他网络协议的启发,其定义更完善、更明确。
Ingress
下一步的发展是一个难题,包括创建一种适用大多数负载均衡器的通
用语言,同时为新功能的创新留出空间,还要允许不同的实现方式朝着其他
方向发展。在互联网特别项目工作组(
Network Special Interest Group
,地址:
https://github.com/kubernetes/community/tree/master/sig-network
)的领导下,
该创新领域将在
Kubernetes
社区中蓬勃发展。
8.7
小结
Ingress
是
Kubernetes
中的一个独特的系统。它只是一个架构,其控制器的实
现必须单独安装和管理。但它也是以实用、经济高效的方式向用户提供服务 ...
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Publisher Resources
ISBN: 9787519856762