Following guide "Deploy an AKS cluster with Confidential Containers and a default policy" error due to missing arguments

Question

I'm following the guide here https://learn.microsoft.com/en-us/azure/aks/deploy-confidential-containers-default-policy and I create a cluster using the portal.azure.com website. I'm trying to follow the "Deploy to an existing cluster" step by running

az aks nodepool add --resource-group myResourceGroup --name nodepool2 –-cluster-name myAKSCluster --node-count 2 --os-sku AzureLinux --node-vm-size Standard_DC4as_cc_v5 --workload-runtime KataCcIsolation

After changing myResourceGroup to the name of my resource group. I get an error

the following arguments are required: --cluster-name

However the flag "–-cluster-name myAKSCluster" (a new cluster name) exists. What am I missing?

Answer 1

Hi cloud D,

Welcome to the Microsoft Q&A Platform! Thank you for asking your question here.

I have reproduced and tried to Deploy an AKS cluster with Confidential Containers and a default policy to an existing cluster. I have got the same error message.

Upon investigation, I have found that the error occurred because of a subtle issue with the --cluster-name flag. When copying from some web sources, special characters like "long dashes" (–) are used instead of regular hyphens (-). These are not recognized by the az CLI, leading to the error.

After editing the command by replacing the long dashes (–) with standard hyphens (-).

az aks nodepool add --resource-group myResourceGroup --name nodepool2 --cluster-name myAKSCluster --node-count 2 --os-sku AzureLinux --node-vm-size Standard_DC4as_cc_v5 --workload-runtime KataCcIsolation

I was able to deploy to an exixsting AKS Cluster.

Hope this helps!

Let me know if you have any further queries!

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