PyVmomi 初體驗

  做爲一個VMware的員工，一直用命令行操做，終於被迫須要使用pyvmomi了，體驗了一下，文檔不多，摸索起來略有費勁兒 ，趕忙把心得記錄下來。

1. PyVmomi能夠在esxi host上面直接用，也能夠在任何的linux系統上用，遠程鏈接到VC或者host上進行操做。

2. 若是要操做vDS Swtich，必需要鏈接到VC上進行建立，不然在host上直接操做會失敗，並在hostd.log裏產生以下的異常：

2018-02-27T06:45:07.442Z verbose hostd[1001392607] [Originator@6876 sub=PropertyProvider opID=9c8882ef user=root] [RecordAndNotifyChangeInt] No listeners on haTask-ha-folder-network-vim.Folder.createDistributedVirtualSwitch-2021163135 - bailing out

2018-02-27T06:45:07.443Z info hostd[1001392607] [Originator@6876 sub=Default opID=9c8882ef user=root] AdapterServer caught exception: N5Vmomi5Fault12NotSupported9ExceptionE(Message is: ,
--> Fault cause: vmodl.fault.NotSupported
--> Fault Messages are:
--> (null)
--> )

3. 經過linux VM 鏈接到VC，建立vDS Switch的代碼:

兩個經常使用到的函數寫在最前面

 

def wait_for_task(task, actionName='job', hideResult=False):
   """
   Waits and provides updates on a vSphere task
   """
   while task.info.state == vim.TaskInfo.State.running:
   time.sleep(2)
   if task.info.state == vim.TaskInfo.State.success:
      if task.info.result is not None and not hideResult:
         out = '%s completed successfully, result: %s' % (actionName, task.info.result)
         print (out)
      else:
         out = '%s completed successfully.' % actionName
         print (out)
   else:
      out = '%s did not complete successfully: %s' % (actionName, task.info.error)
      raise task.info.error
      print (out)
   return task.info.result

def get_obj(content, vimtype, name):
   """
   Get the vsphere object associated with a given text name
   """ 
   obj = None
   container = content.viewManager.CreateContainerView(content.rootFolder, vimtype, True)
   for c in container.view:
      if c.name == name:
         obj = c
      break
   return obj

 

正文開始

import ssl

import pyVim

import pyVim.connect

if hasattr(ssl, '_create_unverified_context'):

    context = ssl._create_unverified_context()

else:

    context = None

 

si = pyVim.connect.SmartConnect(host=<vc_ip>, user=<username>, pwd=<pwd>, port=int("443"),sslContext=context)

content = si.RetrieveContent()

root = content.rootFolder

dc = root.childEntity

if not dc:  //若是是第一次鏈接VC，並無建立datastore，則須要建立一個心得datastore。

    dc1 = root.CreateDatacenter('dc1')

else:

    dc1 = dc[0]

#鏈接esxi host並把host 添加到datastore中

spec = vim.host.ConnectSpec(force=True, hostName=<host>, userName=xxx, password=xxx, password='ca$hc0w', sslThumbprint=None)

task = dc1.hostFolder.AddStandaloneHost(spec=spec, addConnected=True)

#第一次添加胡遇到sslException，須要從新添加一下.

>>> wait_for_task(task)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<stdin>", line 16, in wait_for_task
pyVmomi.VmomiSupport.SSLVerifyFault: (vim.fault.SSLVerifyFault) {
dynamicType = <unset>,
dynamicProperty = (vmodl.DynamicProperty) [],
msg = "Authenticity of the host's SSL certificate is not verified.",
faultCause = <unset>,
faultMessage = (vmodl.LocalizableMessage) [],
selfSigned = false,
thumbprint = 'C7:53:4B:CE:A7:0E:9F:67:7C:53:46:8E:AC:11:F6:D4:B2:D5:46:3C'
}

>>> spec = vim.host.ConnectSpec(force=True, hostName=<host>, userName=xxx, password=xxx, sslThumbprint='C7:53:4B:CE:A7:0E:9F:67:7C:53:46:8E:AC:11:F6:D4:B2:D5:46:3C')
>>> task = dc1.hostFolder.AddStandaloneHost(spec=spec, addConnected=True)
>>> wait_for_task(task)
job completed successfully, result: 'vim.ComputeResource:domain-s178'
'vim.ComputeResource:domain-s178'    #第二次添加成功

>>> host = get_obj(content, [vim.HostSystem], <hostname>)
>>> host
'vim.HostSystem:host-180'
>>> dvs_config_spec.uplinkPortPolicy = vim.DistributedVirtualSwitch.NameArrayUplinkPortPolicy()
>>> uplink_port_names = ['uplink0']
>>> dvs_config_spec.uplinkPortPolicy.uplinkPortName = uplink_port_names
>>> dvs_config_spec.maxPorts = 2000
>>> pnic_spec = vim.dvs.HostMember.PnicSpec()
>>> pnic_spec.pnicDevice = 'vmnic4'
>>> pnic_specs.append(pnic_spec)
>>> dvs_host_config = vim.dvs.HostMember.ConfigSpec()
>>> dvs_host_config.operation = vim.ConfigSpecOperation.add
>>> dvs_host_config.host=host
>>> dvs_host_configs.append(dvs_host_config)
>>> dvs_host_config.backing = vim.dvs.HostMember.PnicBacking()
>>> dvs_host_config.backing.pnicSpec = pnic_specs
>>> dvs_config_spec.host = dvs_host_configs
>>> dvs_create_spec.configSpec = dvs_config_spec
>>> dc = root.childEntity[0]
>>> network_folder = dc.networkFolder
>>>
>>> task = network_folder.CreateDVS_Task(dvs_create_spec)
>>> wait_for_task(task)
job completed successfully, result: 'vim.dvs.VmwareDistributedVirtualSwitch:dvs-186'
'vim.dvs.VmwareDistributedVirtualSwitch:dvs-186'
>>>

至此已經成功的建立了vds switch到esxi host上了。

在host上用命令行查看  esxcfg-vswitch -l:

DVS Name Num Ports Used Ports Configured Ports MTU Uplinks
vds111 3236 3 512 1500 vmnic4

DVPort ID In Use Client
0 1 vmnic4

但能夠發現，DVPort ID 並非我給出的uplink0, 並且並無vm的portid建立出來。待續。