[BUG] AKS Hybrid fail to deploy if using public DNS

[xzrians]

Describe the bug
I was trying to deploy AKS hybrid with the DNS pointing to 1.1.1.1 instead of our Domain DNS. However the deployment stuck at scaling control plane. Further check on control plane found that AKS Hybrid try to access AKS cloudagent server which is not there if we public DNS.

To Reproduce
Steps to reproduce the behavior:

1. Create 1 aks cluster network pointing to 1.1.1.1,1.0.0.1
2. Create new cluster with the aks cluster network pointing to 1.1.1.1

Expected behavior
AKS Cluster will stuck at deploying/scaling control plane

Screenshots

Remotingone of the Control plane found out the AKS Cluster still require access to AKS Cloudagent

stuck at scaling control plane

Environment (please complete the following information):

• AKS-HCI Version 1.0.21.11030
• Kubernetes Version 1.26.6