Fleet server configurations for elk-apm setup in AKS cluster

Hi
I am trying to configure the ELK-APM on AKS cluster. I have been following the documentation as per the given link Run Elastic Agent on Kubernetes managed by Fleet | Fleet and Elastic Agent Guide [8.5] | Elastic

I am stuck at the step of adding agent where it ask for "Install Fleet Server to a centralized host"


I am not sure which platform to use while installing the agent on AKS cluster

can anyone please help with the solution.


Another snapshot for the query

I configured APM in ELK's 7.x version last year but it seems a great change in the version 8.x.

I tried to replicate the scenario and getting the same issue.

Any help by anyone would be appreciated.