# Data Object - CustomizationSpec(vim.vm.customization.Specification)

Property of
  CustomizationSpecItem, VirtualMachineCloneSpec
Parameter to
  CheckCustomizationSpec, CustomizeGuest_Task, CustomizeVM_Task
Extends
  DynamicData
See also
  CustomizationAdapterMapping, CustomizationGlobalIPSettings, CustomizationIdentitySettings, CustomizationOptions
Since
  2.0

## Data Object Description

The Specification data object type contains information required to customize a virtual machine when deploying it or migrating it to a new host.

Properties

Name | Type | Description
--- | --- | ---
encryptionKey* | xsd:byte[] | Byte array containing the public key used to encrypt any passwords stored in the specification. Both the client and the server can use this to determine if stored passwords can be decrypted by the server or if the passwords need to be re-entered and re-encrypted before the specification can be used.
globalIPSettings | CustomizationGlobalIPSettings | Global IP settings constitute the IP settings that are not specific to a particular virtual network adapter.
identity | CustomizationIdentitySettings | Network identity and settings, similar to Microsoft's Sysprep tool. This is a Sysprep, LinuxPrep, CloudinitPrep, or SysprepText object.
nicSettingMap* | CustomizationAdapterMapping[] | IP settings that are specific to a particular virtual network adapter. The AdapterMapping object maps a network adapter's MAC address to its Adapter settings object. May be empty if there are no network adapters, else should match number of network adapters in the VM.
options* | CustomizationOptions | Optional operations (either LinuxOptions or WinOptions).
Properties inherited from DynamicData
None

*Need not be set
Show WSDL type definition
<complexType xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vsan="urn:vsan" name="CustomizationSpec"> <complexContent> <extension base="vsan:DynamicData"> <sequence> <element name="options" type="vsan:CustomizationOptions" minOccurs="0"/> <element name="identity" type="vsan:CustomizationIdentitySettings"/> <element name="globalIPSettings" type="vsan:CustomizationGlobalIPSettings"/> <element name="nicSettingMap" type="vsan:CustomizationAdapterMapping" minOccurs="0" maxOccurs="unbounded"/> <element name="encryptionKey" type="xsd:byte" minOccurs="0" maxOccurs="unbounded"/> </sequence> </extension> </complexContent> </complexType>