osDisk.json

{
  "$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
  "contentVersion": "2017.09.01.0",
  "parameters": {
    "name": {
      "type": "string",
      "metadata": {
        "description": "Specifies the disk name. This element can be used to overwrite the name of the disk in a virtual machine image."
      }
    },
    "Uri": {
      "type": "string",
      "defaultValue": "",
      "metadata": {
        "description": "Specifies the vhd uri."
      }
    },
    "caching": {
      "type": "string",
      "allowedValues": [
        "",
        "None",
        "ReadOnly",
        "ReadWrite"
      ],
      "defaultValue": "ReadWrite",
      "metadata": {
        "description": "Specifies the caching requirements. Note that the OS disk will always use read caching even if the setting is configured to None."
      }
    },
    "createOption": {
      "type": "string",
      "defaultValue": "",
      "allowedValues": [
        "",
        "Attach",
        "FromImage"
      ],
      "metadata": {
        "description": "Specifies how the virtual machine should be created."
      }
    },
    "diskSizeGB": {
      "type": "int",
      "defaultValue": 0,
      "maxValue": 1023,
      "metadata": {
        "description": "Specifies the resized size of the OS Disk. Allows you to resize an existing OS disk size. "
      }
    },
    "osType": {
      "type": "string",
      "defaultValue": "",
      "metadata": {
        "description": "This property allows you to specify the type of the OS that is included in the disk if creating a VM from user-image or a specialized VHD. "
      }
    },
    "encryptionSettings": {
      "type": "object",
      "defaultValue": { },
      "metadata": {
        "description": "Specifies the encryption settings for the OS Disk."
      }
    },
    "ManagedDiskId": {
      "type": "string",
      "defaultValue": ""
    }
  },
  "variables": {
    "comments": {
      "definition": "https://docs.microsoft.com/en-us/rest/api/compute/virtualmachines/virtualmachines-create-or-update#osdisk"
    },
    "osDiskArray": [
      {
        "name": "[parameters('name')]",
        "caching": "[parameters('caching')]",
        "createOption": "[parameters('createOption')]",
        "vhd": {
          "uri": "[parameters('Uri')]"
        },
        "diskSizeGB": "[parameters('diskSizeGB')]"
      },
      {
        "name": "[parameters('name')]",
        "caching": "[parameters('caching')]",
        "createOption": "[parameters('createOption')]"
      }
    ],
    "osDisk": "[if(not(empty(parameters('Uri'))),variables('osDiskArray')[0],variables('osDiskArray')[1])]"
  },
  "resources": [
  ],
  "outputs": {
    "osDisk": {
      "type": "object",
      "value": "[variables('osDisk')]"
    }
  }
}