An administrator has been trying to deploy an initial AHV-based NKP cluster in a dark site (no Internet connectivity) environment using the command shown in the question.

nkp create cluster nutanix \

--cluster-name=$CLUSTER_NAME \

--control-plane-prism-element-cluster=$PE_NAME \

--worker-prism-element-cluster=$PE_NAME \

--control-plane-subnets=$SUBNET_ASSOCIATED_WITH_PE \

--worker-subnets=$SUBNET_ASSOCIATED_WITH_PE \

--control-plane-endpoint-ip=$AVAILABLE_IP_FROM_SAME_SUBNET \

--csi-storage-container=$NAME_OF_YOUR_STORAGE_CONTAINER \

--endpoint=$PC_ENDPOINT_URL \

--control-plane-vm-image=$NAME_OF_OS_IMAGE_CREATED_BY_NKP_CLI \

--worker-vm-image=$NAME_OF_OS_IMAGE_CREATED_BY_NKP_CLI \

--registry-url=${REGISTRY_URL} \

--registry-mirror-username=${REGISTRY_USERNAME} \

--registry-mirror-password=${REGISTRY_PASSWORD} \

--kubernetes-service-load-balancer-ip-range $START_IP-$END_IP \

--self-managed

Which missing attribute needs to be added in order for the deployment?