kubernetes - 多个网络策略规则是否按逻辑处理为 "and"规则或 "or"？

Question

在用于声明网络策略的文档的基本示例中:
https://kubernetes.io/docs/concepts/services-networking/network-policies/#the-networkpolicy-resource

因此，根据文档，这设置了几条规则:

So, the example NetworkPolicy:

- isolates “role=db” pods in the “default” namespace for both ingress
and egress traffic (if they weren’t already isolated)
- allows connections to TCP port 6379 of “role=db” pods in the “default”
namespace from any pod in the “default” namespace with the
label “role=frontend”
- allows connections to TCP port 6379 of “role=db” pods
in the “default” namespace from any pod in a namespace with
the label “project=myproject”
...

这是否意味着“role=db”标签的 pod 可以从以下位置接收连接:

其他带有标签“role=frontend”和带有标签“project=myproject”的命名空间的pod；或

其他带有标签“role=frontend”或带有标签“project=myproject”的命名空间的 pod。

谢谢!

Answer 1

kubernetes network recipe "ALLOW traffic from apps using multiple selectors"清楚了:

• Rules specified in spec.ingress.from are OR'ed.
• This means the pods selected by the selectors are combined are whitelisted altogether.