Setting DNS Label in a Service Load Balancer:
https://docs.microsoft.com/en-us/azure/aks/static-ip#apply-a-dns-label-to-the-service
metadata:
annotations:
service.beta.kubernetes.io/azure-dns-label-name: myserviceuniquelabel
Setting DNS Label in Helm: https://docs.microsoft.com/en-us/azure/aks/ingress-static-ip eg,
.... --set controller.service.annotations."service\.beta\.kubernetes\.io/azure-dns-label-name"="DNS_LABEL"