Yes, it is possible.
When your script works successful, you could judge the return value. Then, execute Azure CLI to deallocate your VM.
##your script
if [$? -eq 0];then
az vm deallocate --resource-group myResourceGroup --name myVM
fi
Notes: If you don't use static IP, it will change IP when you deallocate your VM. Also, if you want to start your VM automatically, you could use Azure automation runbook.
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