Assigning an IP Address to Private DNS

In this step you assign an IP address from the aks-subnet range to the domain name (external access host).

To assign an IP address to private DNS:

1. Set your main resource group name to an environment variable; for example:
   RESOURCE_GROUP=srg-demo

2. Get the address prefix by running the command:
   az network vnet subnet show -g $RESOURCE_GROUP --vnet-name <your virtual network> --name <subnet for AKS>| jq -r .addressPrefix

You can select any IP from this range (excepting the first N IP addresses, which are occupied by AKS nodes).

Example selection in this range: 10.1.1.101

3. Assign the IP by running the following command:
   az network private-dns record-set a add-record -g $RESOURCE_GROUP -z <PRIVATE DNS ZONE> -n <RECORD SET NAME> -a <EXTERNAL-IP>

Parameters

<PRIVATE DNS ZONE> is the private-dns zone created earlier (in our example it was arcsight.private.com).

<RECORD SET NAME> the name of the record set relative to the zone (in our example, installer).

<EXTERNAL-IP> IP must be from aks-subnet range.

Next Step: Labeling Azure Kubernetes Service Nodes