azurerm_platform_image: Add version argument

[jpbuecken]

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Hello,
is it possible to extend the data source azurerm_platform_image to allow version as argument?
Maybe we need a all=true/false flag es well, which is automatically true if version has been set.
The az image list command does not support a --version argument yet, but maybe it is possible to implement it anyway via filter Option in the API call (https://docs.microsoft.com/en-us/rest/api/compute/virtualmachineimages/list)

With this it will be possible to boot your instance from a disk, but use a specific image (not latest). And if we boot from VHD, we are able manage tags of the boot disk via terraform.

• azurerm_platform_image

Potential Terraform Configuration

data "azurerm_platform_image" "test" {
  location  = "West Europe"
  publisher = "Canonical"
  offer     = "UbuntuServer"
  sku       = "16.04-LTS"
  version = "16.04.201907290"
}

output "version" {
  value = "${data.azurerm_platform_image.test.id}"
}

[jpbuecken]

Maybe it is possible to implement query.

Request is to implement the following request via az cli in the datasource:

az vm image list --location westus --publisher Canonical --offer UbuntuServer --sku 18.04-LTS --all --query "[?contains(version,'18.04.201907080')]"
[
  {
    "offer": "UbuntuServer",
    "publisher": "Canonical",
    "sku": "18.04-LTS",
    "urn": "Canonical:UbuntuServer:18.04-LTS:18.04.201907080",
    "version": "18.04.201907080"
  }
]

EDIT 2020-04-02: The filter option has been removed form the Rest API documentation.

Alternative: Add version as optional parameter with default "latest". If version is given and not latest, use
https://docs.microsoft.com/en-us/rest/api/compute/virtualmachineimages/get
instead of
https://docs.microsoft.com/en-us/rest/api/compute/virtualmachineimages/list

curl -X GET -H "Authorization: Bearer $TOKEN" -H 'Content-Type: application/json' https://management.azure.com/subscriptions/${subscriptionId}/providers/Microsoft.Compute/locations/westus/publishers/Canonical/artifacttypes/vmimage/offers/UbuntuServer/skus/18.04-LTS/versions/18.04.201907080?api-version=2019-07-01


{
  "properties": {
    "hyperVGeneration": "V1",
    "replicaType": "Unmanaged",
    "disallowed": {
      "vmDiskType": "None"
    },
    "automaticOSUpgradeProperties": {
      "automaticOSUpgradeSupported": true
    },
    "osDiskImage": {
      "operatingSystem": "Linux",
      "sizeInGb": 30,
      "sizeInBytes": 32212255232
    },
    "dataDiskImages": []
  },
  "location": "westus",
  "name": "18.04.201907080",
  "id": "/Subscriptions/${subscriptionId}/Providers/Microsoft.Compute/Locations/westus/Publishers/Canonical/ArtifactTypes/VMImage/Offers/UbuntuServer/Skus/18.04-LTS/Versions/18.04.201907080"
}

[ghost]

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