osProfile.json

{
  "$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
  "contentVersion": "2017.09.01.0",
  "parameters": {
    "computerName": {
      "type": "string",
      "metadata": {
        "description": "Specifies the host OS name of the virtual machine."
      }
    },
    "adminUsername": {
      "type": "string",
      "minLength": 1,
      "maxLength": 20,
      "metadata": {
        "description": "Specifies the name of the administrator account."
      }
    },
    "adminPassword": {
      "type": "securestring",
      "minLength": 6,
      "maxLength": 123,
      "metadata": {
        "description": "Specifies the password of the administrator account."
      }
    },
    "customData": {
      "type": "string",
      "maxLength": 65535,
      "defaultValue": "",
      "metadata": {
        "description": "Specifies a base-64 encoded string of custom data."
      }
    },
    "windowsConfiguration": {
      "type": "object",
      "defaultValue": { },
      "metadata": {
        "description": "Specifies Windows operating system settings on the virtual machine."
      }
    },
    "linuxConfiguration": {
      "type": "object",
      "defaultValue": { },
      "metadata": {
        "description": "Specifies the Linux operating system settings on the virtual machine."
      }
    },
    "secrets": {
      "type": "object",
      "defaultValue": { },
      "metadata": {
        "description": "Specifies set of certificates that should be installed onto the virtual machine."
      }
    }
  },
  "variables": {
    "comments": {
      "definition": "https://docs.microsoft.com/en-us/rest/api/compute/virtualmachines/virtualmachines-create-or-update#osprofile"
    },
    "osProfileArray": [
      {
        "computerName": "[parameters('computerName')]",
        "adminUsername": "[parameters('adminUsername')]",
        "adminPassword": "[parameters('adminPassword')]",
        "windowsConfiguration": "[parameters('windowsConfiguration')]"
      },
      {
        "computerName": "[parameters('computerName')]",
        "adminUsername": "[parameters('adminUsername')]",
        "linuxConfiguration": "[parameters('linuxConfiguration')]"
      },
      {
        "computerName": "[parameters('computerName')]",
        "adminUsername": "[parameters('adminUsername')]",
        "adminPassword": "[parameters('adminPassword')]",
        "customData": "[parameters('customData')]",
        "windowsConfiguration": "[parameters('windowsConfiguration')]",
        "secrets": "[parameters('secrets')]"
      },
      {
        "computerName": "[parameters('computerName')]",
        "adminUsername": "[parameters('adminUsername')]",
        "customData": "[parameters('customData')]",
        "linuxConfiguration": "[parameters('linuxConfiguration')]",
        "secrets": "[parameters('secrets')]"
      }
    ],
    "osProfile": "[if(not(empty(parameters('windowsConfiguration'))),variables('osProfileArray')[0],variables('osProfileArray')[1])]"
  },
  "resources": [
  ],
  "outputs": {
    "osProfile": {
      "type": "object",
      "value": "[variables('osProfile')]"
    }
  }
}