https://blog.baeke.info/2021/07/01/dns-options-for-private-azure-kubernetes-service/#:~:text=Custom%20Private%20DNS%20Zone%3A%20AKS,domain%20controllers%2C%20Infoblox%2C%20%E2%80%A6)
https://learn.microsoft.com/en-us/azure/aks/ingress-basic?tabs=azure-cli#use-an-internal-ip-address
MC_
MC is for multicluster resource prefix
https://learn.microsoft.com/en-us/azure/aks/private-clusters
https://github.com/Azure-Samples/private-aks-cluster-terraform-devops
https://learn.hashicorp.com/tutorials/terraform/aks