[Website]: Missing information on K8s network policies page

[mjmbischoff]

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• This issue is about a documentation page, flow, or piece of content.

Type of issue

Missing information

What documentation page or section is affected

https://www.elastic.co/docs/deploy-manage/security/k8s-network-policies

What happened?

Isolating Elastic Agent and Fleet documents the egress rules, however the egress to 443 is missing to what I think is the k8s api server for metrics perhaps? or autoconfiguration? - this should be clarified.

Additional info

No response

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[eedugon]

Thanks @mjmbischoff , I've addressed the change in #6326, let me know your thoughts.

The access to the API is needed for the Kubernetes provider of the agent to be able to talk with the API, and also for everything related with autodiscover of the integrations that interact with the API (kubernetes integration and other integrations that support conditional based discovery on k8s).

I didn't want to include too much in the doc, but feel free to comment out.