ray: [autoscaler][azure] example-full.yaml fails to launch due to faulty head node permissions configuration

In the following, could it be that this should be a deep update rather than a normal one?

https://github.com/ray-project/ray/blob/6babd1928c6175803500c1db4ca23b621d89a83f/python/ray/autoscaler/_private/commands.py#L586

E.g. when utilizing the Azure autoscaler, we have a “azure_arm_parameters” key that is being set in

https://github.com/ray-project/ray/blob/6babd1928c6175803500c1db4ca23b621d89a83f/python/ray/autoscaler/_private/azure/config.py#L106

Next to that it is also being set in the YAML definition which will then overwrite the key

As an example, when running my object changes from:

{
  "azure_arm_parameters": {
    "adminUsername": "ubuntu",
    "publicKey": "<MASKED>"
  }
}

towards

{
  "azure_arm_parameters": {
    "vmSize": "Standard_D2s_v3",
    "imagePublisher": "microsoft-dsvm",
    "imageOffer": "ubuntu-1804",
    "imageSku": "1804-gen2",
    "imageVersion": "20.07.06"
  }
}

Removing the adminUsername and publicKey which are required in the Azure ARM templates