使用pyVmomi列出有效的controllerKey值

Question

我使用一些example code將新磁盤附加到虛擬機，因爲我使用pyVmomi創建它。現在我的controllerKey硬編碼爲200（這恰好是我的設置中的IDE控制器 - 我不知道這個值在整個安裝過程中的一致性）。

我想刪除硬編碼控制器密鑰，至少讓用戶在IDE和SCSI控制器之間進行選擇。

有誰知道如何獲得有效的VirtualController密鑰列表？

對於後代，我使用的示例代碼如下：

def create_virtual_disk(capacity, controller_key, unit_number, in_bytes=False): 
    """ 
    :param capacity: Capacity of new disk in Bytes 
    :param unit_number: device unit 
    :return: 
    """ 
    virtual_disk = vim.vm.device.VirtualDisk() 
    if in_bytes: 
     virtual_disk.capacityInBytes = capacity 
    else: 
     virtual_disk.capacityInKB = capacity 

    # Verify this. 
    virtual_disk.unitNumber = unit_number 
    virtual_disk.controllerKey = controller_key 

    # backing info 
    virtual_disk_backing_info = vim.vm.device.VirtualDisk.FlatVer2BackingInfo() 
    virtual_disk_backing_info.diskMode = "persistent" 
    virtual_disk_backing_info.thinProvisioned = True 

    # assigning backing info to virtual disk device backing 
    virtual_disk.backing = virtual_disk_backing_info 

    # creating virtualdevice spec and assigning recently created virtual disk 
    virtual_disk_spec = vim.vm.device.VirtualDeviceSpec() 
    virtual_disk_spec.device = virtual_disk 
    virtual_disk_spec.fileOperation = "create" 
    virtual_disk_spec.operation = "add" 

    return virtual_disk_spec 

Answer 1

短故事：詳見的a，b，或c。一般的建議是堅持a）或硬編碼的controllerKeys列表，用於特定的vmware硬件模型，因爲它比c）（大尺寸響應）更快並且更少實施。

一）找到controllerkey現有devicespec

我們的代碼庫往往只添加設備類型已經存在於我們的虛擬機，因此下面的片段是對我們非常充分，可能還有你：

獲得從type==ctrl_type

def _find_controller(self, ctrl_type, max_devs=None): 
     for dev in self._machine._vm.config.hardware.device: 
      if isinstance(dev, ctrl_type): 
       if not max_devs or len(dev.device) < max_devs: 
        return dev 

     raise ControllerNotFoundException(ctrl_type) 

一個已經存在的控制鍵的具體使用情況，這是增加另一個IDE類型CDROM（這僅添加到引用的規範，並承諾一次性更高版本）：

def _add_cdrom(self, spec, path): 
    spec.device.controllerKey = self._find_controller(vim.vm.device.VirtualIDEController, max_devs=2).key 
    dev = VSphereMediaDevice(spec.device, self._machine) 
    dev._spec.device.backing = vim.vm.device.VirtualCdrom.IsoBackingInfo() 
    dev.mount(path) 
    spec.device.backing = dev._spec.device.backing 

B）爲您的硬件版本

有效controllerkeys列表看看/etc/vmware/hostd/env/vmconfigoption-esx-hw8.xml（ESXi的，默認適用於硬件版本8 vms），其中包含特定vmware硬件版本的所有可用controllerKeys。 controllerKeys對於硬件版本非常一致，但在未來的版本中總會有變化的可能性不大。

<deviceInfo> 
    <_type>vim.Description</_type> 
    <label>VirtualIDEController 0</label> 
    <summary>VirtualIDEController 0</summary> 
</deviceInfo> 
<key>200</key> 

經由SOAP

c）列出vmconfigoptions每當經由vSphere Client中創建了一個新的虛擬機的請求following SOAP執行。其響應包含大部分設備的硬件配置文件（win8，win7，winlonghorn，...）以及controllerKeys。但我想這可能是一種矯枉過正，如果由於沉重的反應你必須多次這樣做。

POST /sdk HTTP/1.1 
    User-Agent: VMware VI Client/xxx 
    Content-Type: text/xml; charset="utf-8" 
    SOAPAction: "urn:internalvim25/5.0" 
    Host: xxx 
    Cookie: vmware_soap_session="xxxx" 
    Content-Length: 526 

    ...<soap:Envelope xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"> 
     <soap:Header> 
      <operationID>xxx</operationID> 
     </soap:Header> 
     <soap:Body> 
      <QueryConfigOption xmlns="urn:internalvim25"> 
       <_this xsi:type="ManagedObjectReference" type="EnvironmentBrowser" serverGuid="">ha-env-browser-vmx-08</_this> 
       <key>vmx-08</key> 
      </QueryConfigOption>  
     </soap:Body> 
    </soap:Envelope> 

響應（截斷）：

HTTP/1.1 200 OK 
Date: xxx 
Cache-Control: no-cache 
Connection: Keep-Alive 
Content-Type: text/xml; charset=utf-8 
Transfer-Encoding: chunked 

7ED8 
<?xml version="1.0" encoding="UTF-8"?> 
<soapenv:Envelope xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" 
xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" 
xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> 
<soapenv:Body> 
<QueryConfigOptionResponse xmlns="urn:internalvim25"><returnval><version>vmx-08</version><description>Hardware version 8 virtual machine</description><guestOSDescriptor><id>windows8Server64Guest 
.... 
<defaultDevice xsi:type="VirtualIDEController"><key>200</key><deviceInfo><label>IDE 0</label><summary>IDE 0</summary></deviceInfo><busNumber>0</busNumber></defaultDevice><defaultDevice xsi:type="VirtualIDEController"><key>201</key><deviceInfo><label>IDE 1</label><summary>IDE 1</summary></deviceInfo><busNumber>1</busNumber></defaultDevice><defaultDevice xsi:type="VirtualPS2Controller"><key>300</key><deviceInfo><label>PS2 controller 0</label><summary>PS2 controller 0</summary></deviceInfo><busNumber>0</busNumber></defaultDevice><defaultDevice xsi:type="VirtualPCIController"><key>100</key><deviceInfo><label>PCI controller 0</label><summary>PCI controller 0</summary></deviceInfo><busNumber>0</busNumber></defaultDevice><defaultDevice xsi:type="VirtualSIOController"><key>400</key><deviceInfo><label>SIO controller 0</label><summary>SIO controller 0</summary></deviceInfo><busNumber>0</busNumber></defaultDevice><defaultDevice xsi:type="VirtualKeyboard"><key>600</key><deviceInfo><label>Keyboard </label><summary>Keyboard</summary></deviceInfo><controllerKey>300</controllerKey><unitNumber>0</unitNumber></defaultDevice><defaultDevice xsi:type="VirtualPointingDevice"><key>700</key><deviceInfo><label>Pointing device</label><summary>Pointing device; Device</summary></deviceInfo><backing xsi:type="VirtualPointingDeviceDeviceBackingInfo"><deviceName></deviceName><useAutoDetect>false</useAutoDetect><hostPointingDevice>autodetect</hostPointingDevice></backing><controllerKey>300</controllerKey><unitNumber>1</unitNumber></defaultDevice><defaultDevice xsi:type="VirtualMachineVideoCard"><key>500</key><deviceInfo><label>Video card </label><summary>Video card</summary></deviceInfo>