[AKS] raise InvalidArgumentValueError for azure cni + pod_cidr without overlay

[tyler-lloyd]

Related command

az aks create -n mycluster -g myrg --network-plugin azure --pod-cidr 10.244.0.0/16 - will now raise a client error and specify an error message to either use Kubenet or Azure CNI Overlay

az aks create -n mycluster -g myrg --network-plugin azure --network-plugin-mode overlay --pod-cidr 10.244.0.0/16 - will not have a warning about the pod_cidr being wiped.

Description

Remove unneeded warning message when using Azure CNI Overlay and block user from specifying pod_cidr using azure cni without overlay.

Testing Guide

Built az cli locally and tested the InvalidArgumentValueError was raised when trying to use azure cni without overlay and specifying pod_cidr. Also that the warning message did not exist when creating an azure cni overlay cluster.

History Notes

[AKS] az aks create -n mycluster -g myrg --network-plugin azure --pod-cidr 10.244.0.0/16: will now raise a client error and specify an error message to either use Kubenet or Azure CNI Overlay [AKS] az aks create -n mycluster -g myrg --network-plugin azure --network-plugin-mode overlay --pod-cidr 10.244.0.0/16: will not have a warning about the pod_cidr being wiped.

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[yonzhan]

AKS

[zhoxing-ms]

@tyler-lloyd Could you please resolve these CI issues?

[zhoxing-ms]

Please note that since we will launch the release of this sprint the day after tomorrow. If you cannot address all the comments tomorrow, we will have to postpone the release of this PR to the next sprint (03-07)

[FumingZhang]

The change should and has been applied to aks-preview. Feel free to close this PR, @zhoxing-ms, thanks!