import argparse
from pyVmomi import vim
from pyVim.connect import SmartConnect,Disconnect
import atexit
import ssl

def validate_options():
  parser = argparse.ArgumentParser(description='input parameters')
  parser.add_argument('-d','--dest_host',dest='dhost',required=True,help='The ESxi destination host IP')
  parser.add_argument('-v','--vc_host',dest='vchost',required=False,help='The VC ip')
  parser.add_argument('-u','--vc_user',dest='vcuser',required=True,help='VC username')
  parser.add_argument('-p','--vc_pass',dest='vcpasswd',required=True,help='VC passwd')
  args = parser.parse_args()
  return args

def getHostID(content,dhost):
  if content.searchIndex.FindByIp(None,dhost,False):
    host = content.searchIndex.FindByIp(None,dhost,False)
  else:
    host = content.searchIndex.FindByDnsName(None,dhost,False)
  return host

def get_HostInfo(content,dhost):
   search_index = content.searchIndex
   root_folder =  content.rootFolder
   view_ref = content.viewManager.CreateContainerView(container=root_folder,type=[vim.HostSystem], recursive=True)
   host = view_ref.view[0]
   #print host.name
   print 'UUID INFO %s' %(host.summary.hardware.uuid)
   print 'Hardware Model %s' %(host.summary.hardware.model)
   print '%s Server has %s Biosversion'%(host.hardware.biosInfo.vendor,host.hardware.biosInfo.biosVersion)
   pcilist=host.hardware.pciDevice
   print '{0}'.format("Vendor Name").ljust(20)+ '{0}'.format("Device Name").ljust(120)+ '{0}'.format("Slot").ljust(30)+ '{0}'.format('Device ID').ljust(10)
   print '*************************************************************************************************************************************************************************************************'
   for i in pcilist:
     a = i.vendorName
     b = i.deviceName
     c = i.deviceId
     d = i.slot
     print '{0}'.format(a).ljust(20)+ '{0}'.format(b).ljust(120)+ '{0}'.format(d).ljust(30)+ '{0}'.format(c).ljust(10)
     #print '%s has devicename %s and  device ID %s'%(i.vendorName,i.deviceName,i.deviceId)
   print '*********************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************' 
def main():
  opts = validate_options()
  if opts.vchost:
    print 'Connecting to vcenter and collecting sensor info for %s' %opts.dhost
  else:
    print 'Connecting to esxi host for %s' %opts.dhost
    opts.vchost = opts.dhost
  si = SmartConnect(host=opts.vchost, user=opts.vcuser, pwd=opts.vcpasswd)
  content = si.RetrieveContent()
  #print content
  hostinfo = get_HostInfo(content,opts.dhost)
  hostid = getHostID(content,opts.dhost)
  sensorinfo=hostid.runtime.healthSystemRuntime.systemHealthInfo.numericSensorInfo
  print '{0}'.format("Sensor").ljust(30)+ '{0}'.format("Sensor Detail").ljust(90)+ '{0}'.format('Status').ljust(10)+ '{0}'.format('Reading').ljust(10) +'{0}'.format('Units').ljust(13)+ '{0}'.format('Summary').ljust(20)
  print '**************************************************************************************************************************************************************************************************************'
  for i in sensorinfo:
    j = i.healthState
    a=str(i.currentReading)
    b=i.baseUnits
    c=i.sensorType
    print '{0}'.format(c).ljust(30)+ '{0}'.format(i.name).ljust(90)+ '{0}'.format(j.label).ljust(10)+ '{0}'.format(a).ljust(10) + '{0}'.format(b).ljust(13)+ '{0}'.format(j.summary).ljust(20)

if __name__ =='__main__':
  main()

How to run this script : 

python <name of script> -v <vc server> -d <esxi host which hardware want to list> -u <vc user name> -p <vc password>

This script is written in python. I have used the  pyVmomi module.

pyVmomi is the Python SDK for the VMware vSphere API that allows you to manage ESX, ESXi, and vCenter. pyVmomi is available on git.

https://github.com/vmware/pyvmomi

I have created a rpm format of same pyVmomi SDK for centos7.  This rpm will be installed in the /opt folder on your centos 7.

Below is the Spec file:

%define BUILD pyvmomi_master.1.0.1.x86_64
Summary: Pyvmomi package
Name: pyvmomi_master
Release: 1.0
Version: 1
License: Apache License 2.0
Requires: python-six
Requires: python-requests
Requires: python-setuptools
BuildArch: noarch

%description
This package contains the vSphere python SDK

%post
%files
%defattr(-,root,root,-)
/opt/pyvmomi-master
%doc
%changeLog
* Fri Jul 14 2017 Amit <amit@openwriteup.com> 1-1.0
- Pyvmomi 6.5

Once you install the rpm, it will be in the /opt/pyvmomi-master folder.

 rpm -ivh pyvmomi_master-1-1.0.noarch.rpm
Preparing...                          ################################# [100%]
Updating / installing...
   1:pyvmomi_master-1-1.0             ################################# [100%]


################################# [100%]

[root@devbox noarch]# ls /opt/pyvmomi-master/
docs  LICENSE.txt  MANIFEST.in  NOTICE.txt  pyVim  pyVmomi  README.rst  requirements.txt  sample  setup.cfg  setup.py  test-requirements.txt  tests  tox.ini

Post installation of the package, we need to run following step:

[root@devbox pyvmomi-master]# python setup.py –help
Common commands: (see ‘–help-commands’ for more)

setup.py build      will build the package underneath ‘build/’
setup.py install    will install the package

 python setup.py install
running install
running bdist_egg
running egg_info
creating pyvmomi.egg-info
writing requirements to pyvmomi.egg-info/requires.txt
writing pyvmomi.egg-info/PKG-INFO
writing top-level names to pyvmomi.egg-info/top_level.txt
writing dependency_links to pyvmomi.egg-info/dependency_links.txt
writing manifest file 'pyvmomi.egg-info/SOURCES.txt'
reading manifest file 'pyvmomi.egg-info/SOURCES.txt'
reading manifest template 'MANIFEST.in'
writing manifest file 'pyvmomi.egg-info/SOURCES.txt'

VMware has released pyVmomi for developers who wants to code in python. pyVmomi is a VMware SDK to manage ESXi and vCenter using python.
Using pip we can install:
pip install pyvmomi

Developers can download the pyvmomi package from python.org

https://pypi.python.org/pypi/pyvmomi

When we extract and list the package
LICENSE.txt NOTICE.txt pyVim pyvmomi.egg-info requirements.txt setup.cfg test-requirements.txt tox.ini MANIFEST.in PKG-INFO pyVmomi README.rst sample setup.py tests

Perform the below steps:
 python setup.py install
 python setup.py develop

pyVmomi package provide mainly two modules : pyVim and pyVmomi
Let’s explore pyVim. This module will be used to connect to ESXi and vSphere Center.
>>> import pyVim
>>> help(pyVim)
PACKAGE CONTENTS
connect
task
>>>import pyVim.connect
NAME
pyVim.connect – Connect to a VMOMI ServiceInstance.
>>>help(pyVim.connect)
This contents two function to connect service instance: SmartConnect and Connect
SmartConnect(protocol=’https’, host=’localhost’, port=443, user=’root’, pwd=”, service=’hostd’, path=’/sdk’, preferredApiVersions=None, keyFile=None, certFile=N
one, thumbprint=None, sslContext=None, b64token=None, mechanism=’userpass’)
Determine the most preferred API version supported by the specified server,then connect to the specified server using that API version, login and return the service instance object. Throws any exception back to caller. The service instance object is also saved in the library for easy access.Clients should modify the service parameter only when connecting to a VMOMI server other than hostd/vpxd. For both of the latter, the default value is fine.

Connect(host=’localhost’, port=443, user=’root’, pwd=”, service=’hostd’, adapter=’SOAP’, namespace=None, path=’/sdk’, version=None, keyFile=None, certFile=None,
thumbprint=None, sslContext=None, b64token=None, mechanism=’userpass’)
Connect to the specified server, login and return the service instance object. Throws any exception back to caller. The service instance object is also saved in the library for easy access. Clients should modify the service parameter only when connecting to
a VMOMI server other than hostd/vpxd. For both of the latter, the default value is fine

We can connect using SmartConnect
From pyVim.connect import SmartConnect
conn = SmartConnect(host=<”ESXi/vSphere Center ip”>, user = <”username”>, pwd= <”password”>)

Print conn

'vim.ServiceInstance:ServiceInstance'

This is service instance type of managed object. For writing code further we can make use of vSphere mob interface: http://<vc-ip>/mob

Wrote a small code which fetch the build number and name of datecenter

#!/bin/python
from pyVim.connect import SmartConnect
conn = SmartConnect(host="<VC hostname>",user="<username>",pwd="<password>")
print ("Multi host is supported")
print (conn.capability.multiHostSupported)
print ("----------------------------------------------------------")
print ("VC System Current time")
print (conn.CurrentTime())
print ("----------------------------------------------------------")
print ("VC server build info")
print (conn.content.about.version)
print (conn.content.about.fullName)
print (conn.content.about.build)
print ("----------------------------------------------------------")
datacenter = conn.content.rootFolder.childEntity
print ("Name of datacenters")
print ("----------------------------------------------------------")
for i in datacenter:
 print (i.name)

# python vcconnect.py 
Multi host is supported
True
----------------------------------------------------------
VC System Current time
2016-09-22 14:33:17.
----------------------------------------------------------
VC server build info
6.0.0
VMware vCenter Server 6.0.0 build-xxxxxx
----------------------------------------------------------
Name of datacenters
----------------------------------------------------------
test_Lab

Below are the screenshot how I traverse for Version number:

conn.content.about.version

conn = SmartConnect(host=<”ESXi/vSphere Center ip”>, user = <”username”>, pwd= <”password”>)

Print conn

'vim.ServiceInstance:ServiceInstance'

conn is Service Instance Object. listing the properties and methods from mob interface.

In properties segment, I am listing the content property.This content the about property.

In about we can list version:

That’s the way below code has traversed.

print ("VC server build info")
print (conn.content.about.version)
print (conn.content.about.fullName)
print (conn.content.about.build)