Hello @vaso eloshvili
resize current VM node-pool un-supported.
To resize a node pool in Azure Kubernetes Service (AKS), you can create a new node pool with the desired SKU and then cordon and drain the old node pool.
You can use the Azure CLI to create a new node pool using the Azure CLI:
'''
az aks nodepool add \
--resource-group myResourceGroup \
--cluster-name myAKSCluster \
--name mynodepool \
--node-count 3 \
--node-vm-size Standard_DS3_v2 \
--mode System \
--no-wait
'''
For more information, you can refer to the following link: https://github.com/MicrosoftDocs/azure-docs/blob/main/articles/aks/resize-node-pool.md
If this helps, please 'Accept Answer' so that it can help others in the community.